1
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Spaulding SA, Platt LRC, Murphy JC, Covert A, Harvey JW. Chlorophyll a in lakes and streams of the United States (2005-2022). Sci Data 2024; 11:611. [PMID: 38866750 PMCID: PMC11169558 DOI: 10.1038/s41597-024-03453-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Accepted: 05/31/2024] [Indexed: 06/14/2024] Open
Abstract
The concentration of chlorophyll a in phytoplankton and periphyton represents the amount of algal biomass. We compiled an 18-year record (2005-2022) of pigment data from water bodies across the United States (US) to support efforts to develop process-based, machine learning, and remote sensing models for prediction of harmful algal blooms (HABs). To our knowledge, this dataset of nearly 84,000 sites and over 1,374,000 pigment measurements is the largest compilation of harmonized discrete, laboratory-extracted chlorophyll data for the US. These data were compiled from the Water Quality Portal (WQP) and previously unpublished U.S. Geological Survey's National Water Quality Laboratory (NWQL) data. Data were harmonized for reporting units, pigment type, duplicate values, collection depth, site name, negative values, and some extreme values. Across the country, data show great variation by state in sampling frequency, distribution, and methods. Uses for such data include the calibration of models, calibration of field sensors, examination of relationship to nutrients and other drivers, evaluation of temporal trends, and other applications addressing local to national scale concerns.
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Affiliation(s)
- Sarah A Spaulding
- U.S. Geological Survey, INSTAAR, 4001 Discovery Drive, Boulder, CO, 80309, USA.
| | - Lindsay R C Platt
- U.S. Geological Survey, 1 Gifford Pinchot Drive, Madison, WI, 53726, USA
- Consortium of Universities for the Advancement of Hydrologic Science, Inc., 1167 Massachusetts Ave. - Suites 418 & 419, Arlington, MA, 02476, USA
| | | | - Alex Covert
- U.S. Geological Survey, 6460 Busch Blvd. - Ste. 100, Columbus, OH, 43229, USA
| | - Judson W Harvey
- U.S. Geological Survey, 12201 Sunrise Valley Drive, Reston, VA, 20192, USA
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2
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Wander HL, Farruggia MJ, La Fuente S, Korver MC, Chapina RJ, Robinson J, Bah A, Munthali E, Ghosh R, Stachelek J, Khandelwal A, Hanson PC, Weathers KC. Using Knowledge-Guided Machine Learning To Assess Patterns of Areal Change in Waterbodies across the Contiguous United States. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:5003-5013. [PMID: 38446785 PMCID: PMC10956424 DOI: 10.1021/acs.est.3c05784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 02/18/2024] [Accepted: 02/22/2024] [Indexed: 03/08/2024]
Abstract
Lake and reservoir surface areas are an important proxy for freshwater availability. Advancements in machine learning (ML) techniques and increased accessibility of remote sensing data products have enabled the analysis of waterbody surface area dynamics on broad spatial scales. However, interpreting the ML results remains a challenge. While ML provides important tools for identifying patterns, the resultant models do not include mechanisms. Thus, the "black-box" nature of ML techniques often lacks ecological meaning. Using ML, we characterized temporal patterns in lake and reservoir surface area change from 1984 to 2016 for 103,930 waterbodies in the contiguous United States. We then employed knowledge-guided machine learning (KGML) to classify all waterbodies into seven ecologically interpretable groups representing distinct patterns of surface area change over time. Many waterbodies were classified as having "no change" (43%), whereas the remaining 57% of waterbodies fell into other groups representing both linear and nonlinear patterns. This analysis demonstrates the potential of KGML not only for identifying ecologically relevant patterns of change across time but also for unraveling complex processes that underpin those changes.
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Affiliation(s)
| | | | | | | | | | - Jenna Robinson
- Rensselaer
Polytechnic Institute, Troy, New York 12180, United States
| | - Abdou Bah
- City
University of New York, New York, New York 10031, United States
| | - Elias Munthali
- Northern
Region Water Board, Bloemwater
Street, Mzuzu 105206, Malawi
| | - Rahul Ghosh
- University
of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Jemma Stachelek
- Los
Alamos National Laboratory, Los Alamos, New Mexico 15672, United States
| | - Ankush Khandelwal
- University
of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Paul C. Hanson
- University
of Wisconsin − Madison, Madison, Wisconsin 53706, United States
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3
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Swedberg K, Cardoso DS, Castillo-Castillo A, Mamun S, Boyle KJ, Nolte C, Papenfus M, Polasky S. Spatial Heterogeneity in Hedonic Price Effects for Lake Water Quality. LAND ECONOMICS 2024; 100:89-108. [PMID: 38515763 PMCID: PMC10953790 DOI: 10.3368/le.100.1.102122-0086r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/23/2024]
Abstract
This study uses Zillow's ZTRAX property transaction database to investigate variation in hedonic price effects of water clarity on single-family houses throughout the United States. We consider five spatial scales and estimate models using different sample selection criteria and model specifications. Our results indicate considerable spatial heterogeneity both within and across the four U.S. Census regions. However, we also find heterogeneity resulting from different types of investigator decisions, including sample selection and modelling choices. Thus, it is necessary to use practical knowledge to consider the limits of market areas and to investigate the robustness of estimation results to investigator choices. (JEL Q51).
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Affiliation(s)
- Kristen Swedberg
- Department of Agricultural and Applied Economics, Virginia Tech, Blacksburg, VA
- ORISE Fellow in Office of Water, Environmental Protection Agency, Washington, DC
| | - Diego S Cardoso
- Department of Agricultural Economics, Purdue University, West Lafayette, IN
| | | | - Saleh Mamun
- Department of Applied Economics, University of Minnesota, St. Paul, MN
- The Natural Capital Project, University of Minnesota, St. Paul, MN
- Natural Resources Research Institute, University of Minnesota - Duluth, Duluth, MN
| | - Kevin J Boyle
- Department of Agricultural and Applied Economics, Virginia Tech, Blacksburg, VA
- Blackwood Department of Real Estate, Virginia Tech, Blacksburg, VA
| | - Christoph Nolte
- Department of Earth & Environment, Boston University, Boston, MA
- Faculty of Computing & Data Sciences, Boston University, Boston, MA
| | | | - Stephen Polasky
- Department of Applied Economics, University of Minnesota, St. Paul, MN
- The Natural Capital Project, University of Minnesota, St. Paul, MN
- Department of Ecology, Evolution & Behavior, University of Minnesota, St. Paul, MN
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4
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Graeber D, McCarthy MJ, Shatwell T, Borchardt D, Jeppesen E, Søndergaard M, Lauridsen TL, Davidson TA. Consistent stoichiometric long-term relationships between nutrients and chlorophyll-a across shallow lakes. Nat Commun 2024; 15:809. [PMID: 38280872 PMCID: PMC10821860 DOI: 10.1038/s41467-024-45115-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 01/15/2024] [Indexed: 01/29/2024] Open
Abstract
Aquatic ecosystems are threatened by eutrophication from nutrient pollution. In lakes, eutrophication causes a plethora of deleterious effects, such as harmful algal blooms, fish kills and increased methane emissions. However, lake-specific responses to nutrient changes are highly variable, complicating eutrophication management. These lake-specific responses could result from short-term stochastic drivers overshadowing lake-independent, long-term relationships between phytoplankton and nutrients. Here, we show that strong stoichiometric long-term relationships exist between nutrients and chlorophyll a (Chla) for 5-year simple moving averages (SMA, median R² = 0.87) along a gradient of total nitrogen to total phosphorus (TN:TP) ratios. These stoichiometric relationships are consistent across 159 shallow lakes (defined as average depth < 6 m) from a cross-continental, open-access database. We calculate 5-year SMA residuals to assess short-term variability and find substantial short-term Chla variation which is weakly related to nutrient concentrations (median R² = 0.12). With shallow lakes representing 89% of the world's lakes, the identified stoichiometric long-term relationships can globally improve quantitative nutrient management in both lakes and their catchments through a nutrient-ratio-based strategy.
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Affiliation(s)
- Daniel Graeber
- Department Aquatic Ecosystem Analysis, Helmholtz-Centre for Environmental Research - UFZ, Magdeburg, Germany.
| | - Mark J McCarthy
- Chair of Hydrobiology & Fisheries, Estonian University of Life Sciences, Tartu, Estonia
| | - Tom Shatwell
- Department Lake Research, Helmholtz-Centre for Environmental Research - UFZ, Magdeburg, Germany
| | - Dietrich Borchardt
- Department Aquatic Ecosystem Analysis, Helmholtz-Centre for Environmental Research - UFZ, Magdeburg, Germany
| | - Erik Jeppesen
- Department of Ecoscience, and WATEC, C.F. Møllers Allé 3, Aarhus University, Aarhus, Denmark
- Sino-Danish Education and Research Centre, Beijing, China
- Limnology Laboratory, Department of Biological Sciences and Centre for Ecosystem Research and Implementation, Middle East Technical University, Ankara, Turkey
- Institute of Marine Sciences, Middle East Technical University, Mersin, Turkey
- Institute for Ecological and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming, China
| | - Martin Søndergaard
- Department of Ecoscience, and WATEC, C.F. Møllers Allé 3, Aarhus University, Aarhus, Denmark
- Sino-Danish Education and Research Centre, Beijing, China
| | - Torben L Lauridsen
- Department of Ecoscience, and WATEC, C.F. Møllers Allé 3, Aarhus University, Aarhus, Denmark
- Sino-Danish Education and Research Centre, Beijing, China
| | - Thomas A Davidson
- Department of Ecoscience, and WATEC, C.F. Møllers Allé 3, Aarhus University, Aarhus, Denmark
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5
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Jackrel SL, White JD, Perez-Coronel E, Koch RY. Selection for oligotrophy among bacteria inhabiting host microbiomes. mBio 2023; 14:e0141523. [PMID: 37646528 PMCID: PMC10653850 DOI: 10.1128/mbio.01415-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 07/04/2023] [Indexed: 09/01/2023] Open
Abstract
IMPORTANCE Understanding how natural selection has historically shaped the traits of microbial populations comprising host microbiomes would help predict how the functions of these microbes may continue to evolve over space and time. Numerous host-associated microbes have been found to adapt to their host, sometimes becoming obligate symbionts, whereas free-living microbes are best known to adapt to their surrounding environment. Our study assessed the selective pressures of both the host environment and the surrounding external environment in shaping the functional potential of host-associated bacteria. Despite residing within the resource-rich microbiome of their hosts, we demonstrate that host-associated heterotrophic bacteria show evidence of trait selection that matches the nutrient availability of their broader surrounding environment. These findings illustrate the complex mix of selective pressures that likely shape the present-day function of bacteria found inhabiting host microbiomes. Our study lends insight into the shifts in function that may occur as environments fluctuate over time.
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Affiliation(s)
- Sara L. Jackrel
- Department of Ecology, Behavior and Evolution, University of California San Diego, La Jolla, California, USA
| | - Jeffrey D. White
- Department of Biology, Framingham State University, Framingham, Massachusetts, USA
| | - Elisabet Perez-Coronel
- Department of Ecology, Behavior and Evolution, University of California San Diego, La Jolla, California, USA
| | - Ryan Y. Koch
- Department of Ecology, Behavior and Evolution, University of California San Diego, La Jolla, California, USA
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6
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Keith DJ, Salls W, Schaeffer BA, Werdell PJ. Assessing the suitability of lakes and reservoirs for recreation using Landsat 8. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:1353. [PMID: 37864113 PMCID: PMC10589144 DOI: 10.1007/s10661-023-11830-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 09/04/2023] [Indexed: 10/22/2023]
Abstract
Water clarity has long been used as a visual indicator of the condition of water quality. The clarity of waters is generally valued for esthetic and recreational purposes. Water clarity is often assessed using a Secchi disk attached to a measured line and lowered to a depth where it can be no longer seen. We have applied an approach which uses atmospherically corrected Landsat 8 data to estimate the water clarity in freshwater bodies by using the quasi-analytical algorithm (QAA) and Contrast Theory to predict Secchi depths for more than 270 lakes and reservoirs across the continental US. We found that incorporating Landsat 8 spectral data into methodologies created to retrieve the inherent optical properties (IOP) of coastal waters was effective at predicting in situ measures of the clarity of inland water bodies. The predicted Secchi depths were used to evaluate the recreational suitability for swimming and recreation using an assessment framework developed from public perception of water clarity. Results showed approximately 54% of the water bodies in our dataset were classified as "marginally suitable to suitable" with approximately 31% classed as "eminently suitable" and approximately 15% classed as "totally unsuitable-unsuitable". The implications are that satellites engineered for terrestrial applications can be successfully used with traditional ocean color algorithms and methods to measure the water quality of freshwater environments. Furthermore, operational land-based satellite sensors have the temporal repeat cycles, spectral resolution, wavebands, and signal-to-noise ratios to be repurposed to monitor water quality for public use and trophic status of complex inland waters.
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Affiliation(s)
- Darryl J Keith
- Center of Environmental Measurement & Modeling, Office of Research and Development, US Environmental Protection Agency, Narragansett, RI, 02882, USA.
| | - Wilson Salls
- Center of Environmental Measurement & Modeling, Office of Research and Development, US Environmental Protection Agency, Research Triangle Park, Durham, NC, 27711, USA
| | - Blake A Schaeffer
- Center of Environmental Measurement & Modeling, Office of Research and Development, US Environmental Protection Agency, Research Triangle Park, Durham, NC, 27711, USA
| | - P Jeremy Werdell
- Ocean Ecology Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD, 20771, USA
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7
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Zhao L, Zhu R, Zhou Q, Jeppesen E, Yang K. Trophic status and lake depth play important roles in determining the nutrient-chlorophyll a relationship: Evidence from thousands of lakes globally. WATER RESEARCH 2023; 242:120182. [PMID: 37311404 DOI: 10.1016/j.watres.2023.120182] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 05/20/2023] [Accepted: 06/06/2023] [Indexed: 06/15/2023]
Abstract
A fundamental problem in lake eutrophication management is that the nutrient-chlorophyll a (Chl a) relationship shows high variability due to diverse influences of for example lake depth, lake trophic status, and latitude. To accommodate the variability induced by spatial heterogeneity, a reliable and general insight into the nutrient-Chl a relationship may be achieved by applying probabilistic methods to analyze data compiled across a broad spatial scale. Here, the roles of two critical factors determining the nutrient-Chl a relationship, lake depth and trophic status, were explored by applying Bayesian networks (BNs) and a Bayesian hierarchical linear regression model (BHM) to a compiled global dataset from 2849 lakes and 25083 observations. We categorized the lakes into three groups (shallow, transitional, and deep) according to mean and maximum depth relative to mixing depth. We found that despite a stronger effect of total phosphorus (TP) and total nitrogen (TN) on Chl a when combined, TP played a dominant role in determining Chl a, regardless of lake depth. However, when the lake was hypereutrophic and/or TP was >40 μg/L, TN had a greater impact on Chl a, especially in shallow lakes. The response curve of Chl a to TP and TN varied with lake depth, with deep lakes having the lowest yield Chl a per unit of nutrient, followed by transitional lakes, while shallow lakes had the highest ratio. Moreover, we found a decrease of TN/TP with increasing Chl a concentrations and lake depth (represented as mixing depth/mean depth). Our established BHM may help estimating lake type and/or lake-specific acceptable TN and TP concentrations that comply with target Chl a concentrations with higher certainty than can be obtained when bulking all lake types.
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Affiliation(s)
- Lei Zhao
- Faculty of Geography, Yunnan Normal University, Kunming 650500, China; GIS Technology Engineering Research Centre for West-China Resources and Environment, Ministry Education, Yunnan Normal University, Kunming 650500, China.
| | - Rao Zhu
- Faculty of Geography, Yunnan Normal University, Kunming 650500, China
| | - Qichao Zhou
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Sciences, Yunnan University, Kunming 650500, China
| | - Erik Jeppesen
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Sciences, Yunnan University, Kunming 650500, China; Department of Ecoscience, Aarhus University, Aarhus 8000C, Denmark; Sino-Danish Centre for Education and Research, Beijing 100049, China; Department of Biological Sciences and Centre for Ecosystem Research and Implementation, Limnology Laboratory, Middle East Technical University, Ankara 06800, Turkey; Institute of Marine Sciences, Middle East Technical University, Mersin, Turkey
| | - Kun Yang
- Faculty of Geography, Yunnan Normal University, Kunming 650500, China; GIS Technology Engineering Research Centre for West-China Resources and Environment, Ministry Education, Yunnan Normal University, Kunming 650500, China.
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8
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Mamun S, Castillo-Castillo A, Swedberg K, Zhang J, Boyle KJ, Cardoso D, Kling CL, Nolte C, Papenfus M, Phaneuf D, Polasky S. Valuing water quality in the United States using a national dataset on property values. Proc Natl Acad Sci U S A 2023; 120:e2210417120. [PMID: 37011190 PMCID: PMC10104588 DOI: 10.1073/pnas.2210417120] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 02/17/2023] [Indexed: 04/05/2023] Open
Abstract
High-quality water resources provide a wide range of benefits, but the value of water quality is often not fully represented in environmental policy decisions, due in large part to an absence of water quality valuation estimates at large, policy relevant scales. Using data on property values with nationwide coverage across the contiguous United States, we estimate the benefits of lake water quality as measured through capitalization in housing markets. We find compelling evidence that homeowners place a premium on improved water quality. This premium is largest for lakefront property and decays with distance from the waterbody. In aggregate, we estimate that 10% improvement of water quality for the contiguous United States has a value of $6 to 9 billion to property owners. This study provides credible evidence for policymakers to incorporate lake water quality value estimates in environmental decision-making.
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Affiliation(s)
- Saleh Mamun
- Department of Applied Economics, University of Minnesota, St. Paul, MN55108
- The Natural Capital Project, University of Minnesota, St. Paul, MN55108
- Natural Resources Research Institute, University of Minnesota–Duluth, Duluth, MN55811
| | | | - Kristen Swedberg
- Department of Agricultural and Applied Economics, Virginia Tech, Blacksburg, VA24061
| | - Jiarui Zhang
- Department of Agricultural and Applied Economics, University of Wisconsin Madison, Madison, WI53706
| | - Kevin J. Boyle
- Blackwood Department of Real Estate, Virginia Tech, Blacksburg, VA24061
| | - Diego Cardoso
- Department of Agricultural Economics, Purdue University, West Lafayette, IN47907
| | - Catherine L. Kling
- Dyson School of Applied Economics and Management, Cornell University, Ithaca, NY14853
- Atkinson Center for a Sustainable Future, Cornell University, Ithaca, NY14853
| | - Christoph Nolte
- Department of Earth & Environment, Boston University, Boston, MA02215
- Faculty of Computing & Data Sciences, Boston University, Boston, MA02215
| | | | - Daniel Phaneuf
- Department of Agricultural and Applied Economics, University of Wisconsin Madison, Madison, WI53706
| | - Stephen Polasky
- Department of Applied Economics, University of Minnesota, St. Paul, MN55108
- The Natural Capital Project, University of Minnesota, St. Paul, MN55108
- Department of Ecology, Evolution & Behavior, University of Minnesota, St. Paul, MN55108
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9
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Nelson E, Rogers M, Wood SA, Chung J, Keeler B. Data‐driven predictions of summertime visits to lakes across 17
US
states. Ecosphere 2023. [DOI: 10.1002/ecs2.4457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2023] Open
Affiliation(s)
- Erik Nelson
- Department of Economics Bowdoin College Brunswick Maine USA
| | - Maggie Rogers
- Hubert H Humphrey School of Public Affairs, University of Minnesota Minneapolis Minnesota USA
| | - Spencer A. Wood
- eScience Institute, University of Washington Seattle Washington USA
- Natural Capital Project Stanford University Stanford California USA
| | - Jesse Chung
- Department of Economics Bowdoin College Brunswick Maine USA
| | - Bonnie Keeler
- Hubert H Humphrey School of Public Affairs, University of Minnesota Minneapolis Minnesota USA
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10
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Harkort L, Duan Z. Estimation of dissolved organic carbon from inland waters at a large scale using satellite data and machine learning methods. WATER RESEARCH 2023; 229:119478. [PMID: 36527868 DOI: 10.1016/j.watres.2022.119478] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 11/13/2022] [Accepted: 12/07/2022] [Indexed: 06/17/2023]
Abstract
Dissolved Organic Carbon (DOC) in inland waters plays an essential role in the global carbon cycle and has significant public health effects. Machine learning (ML) together with remote sensing has emerged as a powerful and promising combination to quantify water quality parameters from space. However, inland water sample data for DOC is limited. Hence, little is known about the potential to quantify DOC content in inland waters, especially over large-scale areas. This study presents the first attempt to estimate DOC in inland waters over a large-scale area using satellite data and ML methods with the newly published open-source dataset AquaSat. Four ML approaches, namely Random Forest Regression (RFR), Support Vector Regression (SVR), Gaussian Process Regression (GPR), and a Multilayer Backpropagation Neural Network (MBPNN) were trained using more than 16 thousand samples across the continental United States matched with satellite data from Landsat 5, 7 and 8 missions. Satellite data from the Landsat missions were further extended with environmental data from the ERA5-Land product and used as input to train the ML algorithms. Our results show that including environmental data as inputs considerably improved the prediction of DOC for all ML algorithms, with GPR showing the most promising performance results with moderate estimation errors (RMSE: 4.08 mg/L). Permutation feature importance analysis showed that the wavelength range in the visible Green band (from Landsat) and the monthly average air temperature (from ERA5-Land) were the most important variables for the ML approaches. The results demonstrate the predictive strength of GPR and its useful feature to derive per pixel standard deviations for detailed analysis. Our results further highlight the important role of considering environmental processes to explain DOC variations over large scales. The application and performance of the GPR in mapping spatiotemporal variations of DOC in an entire water body were discussed by taking Lake Okeechobee (the 8th largest freshwater lake in the U.S.) as an illustrative example. While performance evaluation showed that DOC concentrations can be retrieved with adequate accuracy, algorithm development was challenged by the heterogenous nature of large-scale open source in situ data, issues related to atmospheric correction, and the low spatial and temporal resolution of the environmental predictors. This research demonstrates how open source, large-scale datasets like AquaSat in combination with ML and satellite remote sensing can make research toward large-scale estimation of inland water DOC more realistic while highlighting its remaining limitations and challenges.
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Affiliation(s)
- Lasse Harkort
- Department of Physical Geography and Ecosystem Science, Lund University, Sölvegatan 12, SE-223 62 Lund, Sweden
| | - Zheng Duan
- Department of Physical Geography and Ecosystem Science, Lund University, Sölvegatan 12, SE-223 62 Lund, Sweden.
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11
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Beal MRW, Wilkinson GM, Block PJ. Large scale seasonal forecasting of peak season algae metrics in the Midwest and Northeast U.S. WATER RESEARCH 2023; 229:119402. [PMID: 36462259 DOI: 10.1016/j.watres.2022.119402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 11/16/2022] [Accepted: 11/20/2022] [Indexed: 06/17/2023]
Abstract
In recent decades, many inland lakes have seen an increase in the prevalence of potentially harmful algae. In many inland lakes, the peak season for algae abundance (summer and early fall in the northern hemisphere) coincides with the peak season for recreational use. Currently, little information regarding expected algae conditions is available prior to the peak season for productivity in inland lakes. Peak season algae conditions are influenced by an array of pre-season (spring and early summer) local and global scale variables; identifying these variables for forecast development may be useful in managing potential public health threats posed by harmful algae. Using the LAGOS-NE dataset, pre-season local and global drivers of peak-season algae metrics (represented by chlorophyll-a) are identified for 178 lakes across the Northeast and Midwest U.S. from readily available gridded datasets. Forecasting models are built for each lake conditioned on relevant pre-season predictors. Forecasts are assessed for the magnitude, severity, and duration of seasonal chlorophyll concentrations. Regions of pre-season sea surface temperature, and pre-season chlorophyll-a demonstrate the most predictive power for peak season algae metrics, and resulting models show significant skill. Based on categorical forecast metrics, more than 70% of magnitude models and 90% of duration models outperform climatology. Forecasts of high and severe algae magnitude perform best in large mesotrophic and oligotrophic lakes, however, high algae duration performance appears less dependent on lake characteristics. The advance notice of elevated algae biomass provided by these models may allow lake managers to better prepare for challenges posed by algae during the high use season for inland lakes.
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Affiliation(s)
- Maxwell R W Beal
- Department of Civil and Environmental Engineering, University of Wisconsin - Madison, 1415, Engineering Dr., Madison, WI 53706, United States.
| | - Grace M Wilkinson
- Center for Limnology, University of Wisconsin - Madison, 680N Park St, Madison, WI 53706, United States
| | - Paul J Block
- Department of Civil and Environmental Engineering, University of Wisconsin - Madison, 1415, Engineering Dr., Madison, WI 53706, United States
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12
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Davidson TA, Sayer CD, Jeppesen E, Søndergaard M, Lauridsen TL, Johansson LS, Baker A, Graeber D. Bimodality and alternative equilibria do not help explain long-term patterns in shallow lake chlorophyll-a. Nat Commun 2023; 14:398. [PMID: 36693848 PMCID: PMC9873929 DOI: 10.1038/s41467-023-36043-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Accepted: 01/11/2023] [Indexed: 01/26/2023] Open
Abstract
Since its inception, the theory of alternative equilibria in shallow lakes has evolved and been applied to an ever wider range of ecological and socioecological systems. The theory posits the existence of two alternative stable states or equilibria, which in shallow lakes are characterised by either clear water with abundant plants or turbid water where phytoplankton dominate. Here, we used data simulations and real-world data sets from Denmark and north-eastern USA (902 lakes in total) to examine the relationship between shallow lake phytoplankton biomass (chlorophyll-a) and nutrient concentrations across a range of timescales. The data simulations demonstrated that three diagnostic tests could reliably identify the presence or absence of alternative equilibria. The real-world data accorded with data simulations where alternative equilibria were absent. Crucially, it was only as the temporal scale of observation increased (>3 years) that a predictable linear relationship between nutrient concentration and chlorophyll-a was evident. Thus, when a longer term perspective is taken, the notion of alternative equilibria is not required to explain the response of chlorophyll-a to nutrient enrichment which questions the utility of the theory for explaining shallow lake response to, and recovery from, eutrophication.
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Affiliation(s)
- Thomas A Davidson
- Lake Ecology, Department of Ecoscience and Arctic Research Centre, Aarhus University, Aarhus, Denmark. .,WATEC Aarhus University Centre for Water Technology, Aarhus University, Aarhus, Denmark.
| | - Carl D Sayer
- Environmental Change Research Centre, Department of Geography, University College London, Gower Street, London, WC1E 6BT, UK
| | - Erik Jeppesen
- Lake Ecology, Department of Ecoscience and Arctic Research Centre, Aarhus University, Aarhus, Denmark.,WATEC Aarhus University Centre for Water Technology, Aarhus University, Aarhus, Denmark.,Sino-Danish Centre for Education and Research (SDC), University of Chinese Academy of Sciences, Beijing, China.,Limnology Laboratory, Department of Biological Sciences and Centre for Ecosystem Research and implementation, Middle East Technical University, Ankara, Turkey.,Institute of Marine Sciences, Middle East Technical University, Erdemli-Mersin, Turkey
| | - Martin Søndergaard
- Lake Ecology, Department of Ecoscience and Arctic Research Centre, Aarhus University, Aarhus, Denmark.,Sino-Danish Centre for Education and Research (SDC), University of Chinese Academy of Sciences, Beijing, China
| | - Torben L Lauridsen
- Lake Ecology, Department of Ecoscience and Arctic Research Centre, Aarhus University, Aarhus, Denmark.,WATEC Aarhus University Centre for Water Technology, Aarhus University, Aarhus, Denmark.,Sino-Danish Centre for Education and Research (SDC), University of Chinese Academy of Sciences, Beijing, China
| | - Liselotte S Johansson
- Lake Ecology, Department of Ecoscience and Arctic Research Centre, Aarhus University, Aarhus, Denmark
| | - Ambroise Baker
- School of Health and Life Science, & National Horizons Centre, Teesside University, Middlesbrough, TS1 3BX, UK
| | - Daniel Graeber
- Aquatic Ecosystem Analysis, Helmholtz-Centre for Environmental Research - UFZ, Brückstr. 3a, 39114, Magdeburg, Germany.
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13
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Gries C, Hanson PC, O'Brien M, Servilla M, Vanderbilt K, Waide R. The Environmental Data Initiative: Connecting the past to the future through data reuse. Ecol Evol 2023; 13:e9592. [PMID: 36620398 PMCID: PMC9817195 DOI: 10.1002/ece3.9592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 11/17/2022] [Accepted: 11/21/2022] [Indexed: 01/09/2023] Open
Abstract
The Environmental Data Initiative (EDI) is a trustworthy, stable data repository, and data management support organization for the environmental scientist. In a bottom-up community process, EDI was built with the premise that freely and easily available data are necessary to advance the understanding of complex environmental processes and change, to improve transparency of research results, and to democratize ecological research. EDI provides tools and support that allow the environmental researcher to easily integrate data publishing into the research workflow. Almost ten years since going into production, we analyze metadata to provide a general description of EDI's collection of data and its data management philosophy and placement in the repository landscape. We discuss how comprehensive metadata and the repository infrastructure lead to highly findable, accessible, interoperable, and reusable (FAIR) data by evaluating compliance with specific community proposed FAIR criteria. Finally, we review measures and patterns of data (re)use, assuring that EDI is fulfilling its stated premise.
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Affiliation(s)
- Corinna Gries
- Center for LimnologyUniversity of Wisconsin, MadisonMadisonWisconsinUSA
| | - Paul C. Hanson
- Center for LimnologyUniversity of Wisconsin, MadisonMadisonWisconsinUSA
| | - Margaret O'Brien
- Marine Science InstituteUniversity of California, Santa BarbaraSanta BarbaraCaliforniaUSA
| | - Mark Servilla
- Department of BiologyUniversity of New MexicoAlbuquerqueNew MexicoUSA
| | | | - Robert Waide
- Department of BiologyUniversity of New MexicoAlbuquerqueNew MexicoUSA
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14
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De Palma‐Dow A, McCullough IM, Brentrup JA. Turning up the heat: Long‐term water quality responses to wildfires and climate change in a hypereutrophic lake. Ecosphere 2022. [DOI: 10.1002/ecs2.4271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Affiliation(s)
| | - Ian M. McCullough
- Department of Fisheries and Wildlife Michigan State University East Lansing Michigan USA
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15
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Han Q, Zhou L, Sun W, Wang G, Shrestha S, Xue B, Li Z. Assessing alterations of water level due to environmental water allocation at multiple temporal scales and its impact on water quality in Baiyangdian Lake, China. ENVIRONMENTAL RESEARCH 2022; 212:113366. [PMID: 35500854 DOI: 10.1016/j.envres.2022.113366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 04/09/2022] [Accepted: 04/21/2022] [Indexed: 06/14/2023]
Abstract
Lakes in arid/semiarid regions face problems of insufficient inflow and degradation of water quality, which threaten the health of the lake ecosystem. Baiyangdian Lake (BYDL), the largest lake in the North China Plain, is confronted with such challenges. The objective of this study was to improve understanding of how changes in water level influence water quality in the BYDL at different temporal scales, especially related to implementations of intermittent environmental water allocation activities in the past two decades, by using data on monthly lake water level, climate factors of precipitation and temperature, and lake water quality. The Mann-Kendall method and continuous wavelet analysis revealed that the lake water level shows a significant decreasing trend after 1967, and the period of 16-year was identified as the principal period for 1950-2018. Based on cross-wavelet transform and wavelet coherence analysis, the periodic agreement and coherence between water level and climatic factors decreased after 1997, when environmental water allocations started, indicating that the influences of climatic factors, i.e., precipitation and temperature, became weak. By utilizing the cross-wavelet transform and wavelet coherence analysis methods, the relationships between lake water level and water quality parameters of chemical oxygen demand, ammonia nitrogen, total nitrogen, and total phosphorus were investigated. We found that the change in source and amount of environmental water allocation is one possible reason for the temporal evolution in joint variability between lake water level and water quality. Meanwhile, a dilution effect of freshwater allocated to BYDL was detected in the time-frequency domain. However, the result also indicates that the driving mechanism of water quality is complex due to the combined impacts of water allocation, nonpoint source pollution in the rainy season, and nutrient release from lake sediment. Our findings improve the general understanding of changes in water level in lakes located in arid and semiarid regions under climate change and intensive human activities, and also provide valuable knowledge for decision making in aquatic ecosystem restoration of BYDL and other similar lakes.
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Affiliation(s)
- Quan Han
- Beijing Key Laboratory of Urban Hydrological Cycle and Sponge City Technology, College of Water Sciences, Beijing Normal University, Beijing, 100875, China
| | - Ling Zhou
- Beijing Key Laboratory of Urban Hydrological Cycle and Sponge City Technology, College of Water Sciences, Beijing Normal University, Beijing, 100875, China
| | - Wenchao Sun
- Beijing Key Laboratory of Urban Hydrological Cycle and Sponge City Technology, College of Water Sciences, Beijing Normal University, Beijing, 100875, China.
| | - Guoqiang Wang
- Beijing Key Laboratory of Urban Hydrological Cycle and Sponge City Technology, College of Water Sciences, Beijing Normal University, Beijing, 100875, China
| | - Sangam Shrestha
- Water Engineering and Management, School of Engineering and Technology, Asian Institute of Technology, P.O. Box 4, Klong Luang, Pathum Thani, 12120, Thailand
| | - Baolin Xue
- Beijing Key Laboratory of Urban Hydrological Cycle and Sponge City Technology, College of Water Sciences, Beijing Normal University, Beijing, 100875, China
| | - Zhanjie Li
- Beijing Key Laboratory of Urban Hydrological Cycle and Sponge City Technology, College of Water Sciences, Beijing Normal University, Beijing, 100875, China
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16
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Lehner B, Messager ML, Korver MC, Linke S. Global hydro-environmental lake characteristics at high spatial resolution. Sci Data 2022. [PMCID: PMC9226168 DOI: 10.1038/s41597-022-01425-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Here we introduce the LakeATLAS dataset, which provides a broad range of hydro-environmental characteristics for more than 1.4 million lakes and reservoirs globally with an area of at least 10 ha. LakeATLAS forms part of the larger HydroATLAS data repository and expands the existing datasets of sub-basin and river reach descriptors by adding equivalent information for lakes and reservoirs in a compatible structure. Matching its HydroATLAS counterparts, version 1.0 of LakeATLAS contains data for 56 variables, partitioned into 281 individual attributes and organized in six categories: hydrology; physiography; climate; land cover & use; soils & geology; and anthropogenic influences. LakeATLAS derives these attributes by processing and reformatting original data from well-established global digital maps at 15 arc-second (~500 m) grid cell resolution and assigns the information spatially to each lake by aggregating it within the lake, in a 3-km vicinity buffer around the lake, and/or within the entire upstream drainage area of the lake. The standardized format of LakeATLAS ensures versatile applicability in hydro-ecological assessments from regional to global scales. Measurement(s) | hydro-environmental characteristics • lake • water body • hydrographic feature | Technology Type(s) | digital curation | Sample Characteristic - Environment | freshwater environment • aquatic environment | Sample Characteristic - Location | Earth (planet) |
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17
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Richardson DC, Holgerson MA, Farragher MJ, Hoffman KK, King KBS, Alfonso MB, Andersen MR, Cheruveil KS, Coleman KA, Farruggia MJ, Fernandez RL, Hondula KL, López Moreira Mazacotte GA, Paul K, Peierls BL, Rabaey JS, Sadro S, Sánchez ML, Smyth RL, Sweetman JN. A functional definition to distinguish ponds from lakes and wetlands. Sci Rep 2022; 12:10472. [PMID: 35729265 PMCID: PMC9213426 DOI: 10.1038/s41598-022-14569-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Accepted: 06/08/2022] [Indexed: 11/14/2022] Open
Abstract
Ponds are often identified by their small size and shallow depths, but the lack of a universal evidence-based definition hampers science and weakens legal protection. Here, we compile existing pond definitions, compare ecosystem metrics (e.g., metabolism, nutrient concentrations, and gas fluxes) among ponds, wetlands, and lakes, and propose an evidence-based pond definition. Compiled definitions often mentioned surface area and depth, but were largely qualitative and variable. Government legislation rarely defined ponds, despite commonly using the term. Ponds, as defined in published studies, varied in origin and hydroperiod and were often distinct from lakes and wetlands in water chemistry. We also compared how ecosystem metrics related to three variables often seen in waterbody definitions: waterbody size, maximum depth, and emergent vegetation cover. Most ecosystem metrics (e.g., water chemistry, gas fluxes, and metabolism) exhibited nonlinear relationships with these variables, with average threshold changes at 3.7 ± 1.8 ha (median: 1.5 ha) in surface area, 5.8 ± 2.5 m (median: 5.2 m) in depth, and 13.4 ± 6.3% (median: 8.2%) emergent vegetation cover. We use this evidence and prior definitions to define ponds as waterbodies that are small (< 5 ha), shallow (< 5 m), with < 30% emergent vegetation and we highlight areas for further study near these boundaries. This definition will inform the science, policy, and management of globally abundant and ecologically significant pond ecosystems.
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Affiliation(s)
- David C Richardson
- Biology Department, State University of New York at New Paltz, New Paltz, NY, USA.
| | - Meredith A Holgerson
- Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, NY, USA
| | - Matthew J Farragher
- School of Biology and Ecology, Climate Change Institute, University of Maine, Orono, ME, USA
| | - Kathryn K Hoffman
- Departments of Biology and Environmental Studies, St. Olaf College, Northfield, MN, USA
| | - Katelyn B S King
- Department of Fisheries and Wildlife, Michigan State University, East Lansing, MI, USA
| | - María B Alfonso
- Instituto Argentino de Oceanografía (IADO), Universidad Nacional del Sur (UNS)-CONICET, Florida 8000, Complejo CCT CONICET Bahía Blanca, Edificio E1, B8000BFW, Bahía Blanca, Argentina
| | - Mikkel R Andersen
- Centre for Freshwater and Environmental Studies, Dundalk Institute of Technology, Dundalk, Ireland
| | - Kendra Spence Cheruveil
- Department of Fisheries and Wildlife and the Lyman Briggs College, Michigan State University, East Lansing, MI, USA
| | | | - Mary Jade Farruggia
- Department of Environmental Science and Policy, University of California, Davis, Davis, CA, USA
| | - Rocio Luz Fernandez
- National Scientific and Technical Research Council (CONICET), Cordoba, Argentina
| | - Kelly L Hondula
- Battelle, National Ecological Observatory Network (NEON), Boulder, CO, USA
| | - Gregorio A López Moreira Mazacotte
- Department of Ecohydrology and Biogeochemistry, Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB), Müggelseedamm 310, 12587, Berlin, Germany
| | - Katherine Paul
- Biology Department, State University of New York at New Paltz, New Paltz, NY, USA
| | | | - Joseph S Rabaey
- Department of Ecology, Evolution, and Behavior, University of Minnesota-Twin Cities, St. Paul, MN, USA
| | - Steven Sadro
- Department of Environmental Science and Policy, University of California, Davis, Davis, CA, USA
| | | | - Robyn L Smyth
- Environmental and Urban Studies, Bard College, Annandale-on-Hudson, NY, USA
| | - Jon N Sweetman
- Department of Ecosystem Science and Management, Penn State University, University College, PA, USA
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18
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Khazaei B, Read LK, Casali M, Sampson KM, Yates DN. GLOBathy, the global lakes bathymetry dataset. Sci Data 2022; 9:36. [PMID: 35115560 PMCID: PMC8814159 DOI: 10.1038/s41597-022-01132-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 12/21/2021] [Indexed: 11/09/2022] Open
Abstract
Waterbodies (natural lakes and reservoirs) are a critical part of a watershed's ecological and hydrological balance, and in many cases dictate the downstream river flows either through natural attenuation or through managed controls. Investigating waterbody dynamics relies primarily on understanding their morphology and geophysical characteristics that are primarily defined by bathymetry. Bathymetric conditions define stage-storage relationships and circulation/transport processes in waterbodies. Yet many studies oversimplify these mechanisms due to unavailability of the bathymetric data. We developed a novel GLObal Bathymetric (GLOBathy) dataset of 1.4+ million waterbodies to align with the well-established global dataset, HydroLAKES. GLOBathy uses a GIS-based framework to generate bathymetric maps based on the waterbody maximum depth estimates and HydroLAKES geometric/geophysical attributes of the waterbodies. The maximum depth estimates are validated at 1,503 waterbodies, making use of several observed data sources. We also provide estimations for head-Area-Volume (h-A-V) relationships of the HydroLAKES waterbodies, driven from the bathymetric maps of the GLOBathy dataset. The h-A-V relationships provide essential information for water balance and hydrological studies of global waterbody systems.
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Affiliation(s)
- Bahram Khazaei
- Research Applications Laboratory, National Center for Atmospheric Research, Boulder, CO, 80301, USA.
| | - Laura K Read
- Research Applications Laboratory, National Center for Atmospheric Research, Boulder, CO, 80301, USA
| | - Matthew Casali
- Research Applications Laboratory, National Center for Atmospheric Research, Boulder, CO, 80301, USA
| | - Kevin M Sampson
- Research Applications Laboratory, National Center for Atmospheric Research, Boulder, CO, 80301, USA
| | - David N Yates
- Research Applications Laboratory, National Center for Atmospheric Research, Boulder, CO, 80301, USA
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19
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Zhou J, Han X, Brookes JD, Qin B. High probability of nitrogen and phosphorus co-limitation occurring in eutrophic lakes. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 292:118276. [PMID: 34606973 DOI: 10.1016/j.envpol.2021.118276] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 09/28/2021] [Accepted: 09/30/2021] [Indexed: 06/13/2023]
Abstract
Limnologists and governments have long had an interest in whether nitrogen (N) and/or phosphorous (P) limit algal productivity in lakes. However, the types and importance of anthropogenic and biogeochemical processes of N and P differ with lake trophic status. Here, a global lake dataset (annual average data from 831 lakes) demonstrates that total nitrogen (TN): total phosphorous (TP) ratios declined significantly as lakes become more eutrophic. From oligotrophic to hypereutrophic lakes, the probability of N and P co-limitation significantly increases from 15.0 to 67.0%, while P-only limitation decreases from 77.0 to 22.3%. Furthermore, TN:TP ratios are mainly affected by concentrations of TP (r = -0.699) rather than TN (r = -0.147). These results reveal that lake eutrophication mainly occurs with increasing P rather than N, which shifts lake ecosystems from stoichiometric P limitation toward a higher probability of N and P co-limitation. This study suggests that low N:P stoichiometry and a high probability of N and P co-limitation tend to occur in eutrophic systems.
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Affiliation(s)
- Jian Zhou
- Taihu Laboratory for Lake Ecosystem Research, State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, 73 East Beijing Road, Nanjing, 210008, PR China
| | - Xiaoxia Han
- Jiangsu Environmental Engineering and Technology Co., Ltd., Jiangsu Environmental Protection Group Co., Ltd., Nanjing, 210036, China
| | - Justin D Brookes
- Water Research Centre, School of Biological Science, The University of Adelaide, South Australia, 5005, Australia
| | - Boqiang Qin
- Taihu Laboratory for Lake Ecosystem Research, State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, 73 East Beijing Road, Nanjing, 210008, PR China.
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20
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Narr CF, Chernyavskiy P, Collins SM. Partitioning macroscale and microscale ecological processes using covariate-driven non-stationary spatial models. ECOLOGICAL APPLICATIONS : A PUBLICATION OF THE ECOLOGICAL SOCIETY OF AMERICA 2022; 32:e02485. [PMID: 34676934 DOI: 10.1002/eap.2485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 03/31/2021] [Accepted: 05/18/2021] [Indexed: 06/13/2023]
Abstract
Ecological inference requires integrating information across scales. This integration creates a complex spatial dependence structure that is most accurately represented by fully non-stationary models. However, ecologists rarely use these models because they are difficult to estimate and interpret. Here, we facilitate the use of fully non-stationary models in ecology by improving the interpretability of a recently developed non-stationary model and applying it to improve our understanding of the spatial processes driving lake eutrophication. We reformulated a model that incorporates non-stationary correlation by adding environmental predictors to the covariance function, thereby building on the intuition of mean regression. We created ellipses to visualize how data at a given site correlate with their surroundings (i.e., the range and directionality of underlying spatial processes). We applied this model to describe the spatial dependence structure of variables related to lake eutrophication across two different regions: a Midwestern United States region with highly agricultural landscapes, and a Northeastern United States region with heterogeneous land use. For the Midwest, increases in forest cover increased the homogeneity of the residual spatial structure of total phosphorus, indicating that macroscale processes dominated this nutrient's spatial structure. Conversely, high forest cover and baseflow reduced the spatial homogeneity of chlorophyll a residuals, indicating that microscale processes dominated for chlorophyll a in the Midwest. In the Northeast, increases in urban land use and baseflow decreased the homogeneity of phosphorus concentrations indicating the dominance of microscale processes, but none of our covariates were strongly associated with the residual spatial structure of chlorophyll a. Our model showed that the spatial dependence structure of environmental response variables shifts across space. It also helped to explain this structure using ecologically relevant covariates from different scales whose effects can be interpreted intuitively. This provided novel insight into the processes that lead to eutrophication, a complex and pervasive environmental issue.
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Affiliation(s)
- Charlotte F Narr
- Southern Illinois University in Carbondale, Carbondale, Illinois, 62901, USA
- Department of Zoology and Physiology, University of Wyoming, Laramie, Wyoming, 82071, USA
| | - Pavel Chernyavskiy
- Department of Public Health Sciences, University of Virginia, Charlottesville, Virginia, 22903, USA
| | - Sarah M Collins
- Department of Zoology and Physiology, University of Wyoming, Laramie, Wyoming, 82071, USA
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21
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Carleton JN, Washington BJ. Assessing Evidence of Phosphorus Concentration Trends in North American Fresh Waters. JOURNAL OF THE AMERICAN WATER RESOURCES ASSOCIATION 2021; 57:956-971. [PMID: 36960312 PMCID: PMC10031499 DOI: 10.1111/1752-1688.12970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 10/13/2021] [Indexed: 06/18/2023]
Abstract
The U.S. EPA's National Aquatic Resource Surveys (NARS) documented evidence of widespread, unexplained total phosphorus (TP) concentration increases in lakes and streams across the United States during the 2000 - 2012 time period. To examine the robustness of evidence for this trend, we used additional monitoring datasets to calculate rates of TP change in thousands of individual waterbodies across the U.S. during the same time frame, and compared them against TP change rates calculated in the same manner for waterbodies that were resurveyed under NARS in different years. For the additional datasets, median rates of TP change were substantially lower than median rates calculated using NARS data. To further examine differences between NARS and non-NARS results in specific waterbodies, we assembled composite datasets for 52 predominantly northern lakes that by chance had been sampled under both NARS and other sampling programs during the same time frame. Using only NARS data, the median calculated TP change rate for this set of lakes was positive, and similar to that for the larger set of 401 resurveyed NARS lakes. However, when additional sample data were included, the median calculated TP change rate for these lakes was much lower. Results suggest that increasing TP concentrations in waterbodies may not have been as ubiquitous as suggested. They also illustrate a need to supplement randomized continental-scale monitoring with detailed, site-focused investigations.
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Affiliation(s)
- James N. Carleton
- Office of Research and Development, Center for Public Health and Environmental Assessment, U.S. Environmental Protection Agency (Mail Code 8623R), 1200 Pennsylvania Ave NW, Washington, DC
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22
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Thomas SM, Verhoeven MR, Walsh JR, Larkin DJ, Hansen GJA. Species distribution models for invasive Eurasian watermilfoil highlight the importance of data quality and limitations of discrimination accuracy metrics. Ecol Evol 2021; 11:12567-12582. [PMID: 34594521 PMCID: PMC8462136 DOI: 10.1002/ece3.8002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 06/20/2021] [Accepted: 07/19/2021] [Indexed: 11/12/2022] Open
Abstract
AIM Availability of uniformly collected presence, absence, and abundance data remains a key challenge in species distribution modeling (SDM). For invasive species, abundance and impacts are highly variable across landscapes, and quality occurrence and abundance data are critical for predicting locations at high risk for invasion and impacts, respectively. We leverage a large aquatic vegetation dataset comprising point-level survey data that includes information on the invasive plant Myriophyllum spicatum (Eurasian watermilfoil) to: (a) develop SDMs to predict invasion and impact from environmental variables based on presence-absence, presence-only, and abundance data, and (b) compare evaluation metrics based on functional and discrimination accuracy for presence-absence and presence-only SDMs. LOCATION Minnesota, USA. METHODS Eurasian watermilfoil presence-absence and abundance information were gathered from 468 surveyed lakes, and 801 unsurveyed lakes were leveraged as pseudoabsences for presence-only models. A Random Forest algorithm was used to model the distribution and abundance of Eurasian watermilfoil as a function of lake-specific predictors, both with and without a spatial autocovariate. Occurrence-based SDMs were evaluated using conventional discrimination accuracy metrics and functional accuracy metrics assessing correlation between predicted suitability and observed abundance. RESULTS Water temperature degree days and maximum lake depth were two leading predictors influencing both invasion risk and abundance, but they were relatively less important for predicting abundance than other water quality measures. Road density was a strong predictor of Eurasian watermilfoil invasion risk but not abundance. Model evaluations highlighted significant differences: Presence-absence models had high functional accuracy despite low discrimination accuracy, whereas presence-only models showed the opposite pattern. MAIN CONCLUSION Complementing presence-absence data with abundance information offers a richer understanding of invasive Eurasian watermilfoil's ecological niche and enables evaluation of the model's functional accuracy. Conventional discrimination accuracy measures were misleading when models were developed using pseudoabsences. We thus caution against the overuse of presence-only models and suggest directing more effort toward systematic monitoring programs that yield high-quality data.
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Affiliation(s)
- Shyam M. Thomas
- Department of Fisheries Wildlife & Conservation Biology and Minnesota Aquatic Invasive Species Research CenterUniversity of MinnesotaSt. PaulMinnesotaUSA
| | - Michael R. Verhoeven
- Department of Fisheries Wildlife & Conservation Biology and Minnesota Aquatic Invasive Species Research CenterUniversity of MinnesotaSt. PaulMinnesotaUSA
| | - Jake R. Walsh
- Department of Fisheries Wildlife & Conservation Biology and Minnesota Aquatic Invasive Species Research CenterUniversity of MinnesotaSt. PaulMinnesotaUSA
- Minnesota Department of Natural ResourcesSt. PaulMinnesotaUSA
| | - Daniel J. Larkin
- Department of Fisheries Wildlife & Conservation Biology and Minnesota Aquatic Invasive Species Research CenterUniversity of MinnesotaSt. PaulMinnesotaUSA
| | - Gretchen J. A. Hansen
- Department of Fisheries Wildlife & Conservation Biology and Minnesota Aquatic Invasive Species Research CenterUniversity of MinnesotaSt. PaulMinnesotaUSA
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23
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Pukk L, Kanefsky J, Heathman AL, Weise EM, Nathan LR, Herbst SJ, Sard NM, Scribner KT, Robinson JD. eDNA metabarcoding in lakes to quantify influences of landscape features and human activity on aquatic invasive species prevalence and fish community diversity. DIVERS DISTRIB 2021. [DOI: 10.1111/ddi.13370] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Affiliation(s)
- Lilian Pukk
- Department of Fisheries and Wildlife Michigan State University East Lansing MI USA
| | - Jeannette Kanefsky
- Department of Fisheries and Wildlife Michigan State University East Lansing MI USA
| | - Amanda L. Heathman
- Department of Fisheries and Wildlife Michigan State University East Lansing MI USA
| | - Ellen M. Weise
- Department of Fisheries and Wildlife Michigan State University East Lansing MI USA
| | - Lucas R. Nathan
- Michigan Department of Natural Resources‐Fisheries Division Lansing MI USA
| | - Seth J. Herbst
- Michigan Department of Natural Resources‐Fisheries Division Lansing MI USA
| | - Nicholas M. Sard
- Biological Sciences Department State University of New York Oswego Oswego NY USA
| | - Kim T. Scribner
- Department of Fisheries and Wildlife Michigan State University East Lansing MI USA
- Department of Integrative Biology Michigan State University East Lansing MI USA
| | - John D. Robinson
- Department of Fisheries and Wildlife Michigan State University East Lansing MI USA
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24
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Hollister JW, Kellogg DQ, Kreakie BJ, Shivers SD, Milstead WB, Herron EM, Green LT, Gold AJ. Analyzing long-term water quality of lakes in Rhode Island and the northeastern United States with an anomaly approach. Ecosphere 2021; 12:10.1002/ecs2.3555. [PMID: 34249403 PMCID: PMC8262619 DOI: 10.1002/ecs2.3555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 01/12/2021] [Indexed: 11/09/2022] Open
Abstract
Addressing anthropogenic impacts on aquatic ecosystems is a focus of lake management. Controlling phosphorus and nitrogen can mitigate these impacts, but determining management effectiveness requires long-term datasets. Recent analysis of the LAke multi-scaled GeOSpatial and temporal database for the Northeast (LAGOS-NE) United States found stable water quality in the northeastern and midwestern United States; however, sub-regional trends may be obscured. We used the University of Rhode Island's Watershed Watch Volunteer Monitoring Program (URIWW) dataset to determine if there were sub-regional (i.e., 3000 km2) water quality trends. URIWW has collected water quality data on Rhode Island lakes and reservoirs for over 25 yr. The LAGOS-NE and URIWW datasets allowed for comparison of water quality trends at regional and sub-regional scales, respectively. We assessed regional (LAGOS-NE) and sub-regional (URIWW) trends with yearly median anomalies calculated on a per-station basis. Sub-regionally, temperature and chlorophyll a increased from 1993 to 2016. Total nitrogen, total phosphorus, and the nitrogen:phosphorus ratio (N:P) were stable. At the regional scale, the LAGOS-NE dataset showed similar trends to prior studies of the LAGOS-NE with chlorophyll a, total nitrogen, and N:P all stable over time. Total phosphorus did show a very slight increase. In short, algal biomass, as measured by chlorophyll a in Rhode Island lakes and reservoirs increased, despite stability in total nitrogen, total phosphorus, and the nitrogen to phosphorus ratio. Additionally, we demonstrated both the value of long-term monitoring programs, like URIWW, for identifying trends in environmental condition, and the utility of site-specific anomalies for analyzing for long-term water quality trends.
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Affiliation(s)
- J. W. Hollister
- U.S. Environmental Protection Agency, Office of Research and Development, Atlantic Coastal Environmental Sciences Division, Narragansett, Rhode Island 02882 USA
| | - D. Q. Kellogg
- Department of Natural Resources Science, University of Rhode Island, Kingston, Rhode Island 02881 USA
| | - B. J. Kreakie
- U.S. Environmental Protection Agency, Office of Research and Development, Atlantic Coastal Environmental Sciences Division, Narragansett, Rhode Island 02882 USA
| | - S. D. Shivers
- U.S. Environmental Protection Agency, Office of Research and Development, Atlantic Coastal Environmental Sciences Division, Narragansett, Rhode Island 02882 USA
| | - W. B. Milstead
- U.S. Environmental Protection Agency, Office of Research and Development, Atlantic Coastal Environmental Sciences Division, Narragansett, Rhode Island 02882 USA
| | - E. M. Herron
- Department of Natural Resources Science, University of Rhode Island, Kingston, Rhode Island 02881 USA
| | - L. T. Green
- Department of Natural Resources Science, University of Rhode Island, Kingston, Rhode Island 02881 USA
| | - A. J. Gold
- Department of Natural Resources Science, University of Rhode Island, Kingston, Rhode Island 02881 USA
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Remote Sensing of Lake Water Clarity: Performance and Transferability of Both Historical Algorithms and Machine Learning. REMOTE SENSING 2021. [DOI: 10.3390/rs13081434] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
There has been little rigorous investigation of the transferability of existing empirical water clarity models developed at one location or time to other lakes and dates of imagery with differing conditions. Machine learning methods have not been widely adopted for analysis of lake optical properties such as water clarity, despite their successful use in many other applications of environmental remote sensing. This study compares model performance for a random forest (RF) machine learning algorithm and a simple 4-band linear model with 13 previously published empirical non-machine learning algorithms. We use Landsat surface reflectance product data aligned with spatially and temporally co-located in situ Secchi depth observations from northeastern USA lakes over a 34-year period in this analysis. To evaluate the transferability of models across space and time, we compare model fit using the complete dataset (all images and samples) to a single-date approach, in which separate models are developed for each date of Landsat imagery with more than 75 field samples. On average, the single-date models for all algorithms had lower mean absolute errors (MAE) and root mean squared errors (RMSE) than the models fit to the complete dataset. The RF model had the highest pseudo-R2 for the single-date approach as well as the complete dataset, suggesting that an RF approach outperforms traditional linear regression-based algorithms when modeling lake water clarity using satellite imagery.
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26
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Lapierre J, Collins SM, Oliver SK, Stanley EH, Wagner T. Inconsistent browning of northeastern U.S. lakes despite increased precipitation and recovery from acidification. Ecosphere 2021. [DOI: 10.1002/ecs2.3415] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Jean‐Francois Lapierre
- Département de sciences biologiques Université de Montréal Montréal QuébecH3C 3J7Canada
- Groupe de Recherche Interuniversitaire en Limnologie (GRIL) Université du Québec à Montréal Montréal QuebecH3C 3P8Canada
| | - Sarah M. Collins
- Department of Zoology and Physiology University of Wyoming Laramie Wyoming82701USA
- Program in Ecology University of Wyoming Laramie Wyoming82701USA
| | - Samantha K. Oliver
- U.S. Geological Survey Upper Midwest Water Science Center Middleton Wisconsin53562USA
| | - Emily H. Stanley
- Center for Limnology University of Wisconsin‐Madison Madison Wisconsin53706USA
| | - Tyler Wagner
- U.S. Geological Survey Pennsylvania Cooperative Fish and Wildlife Unit The Pennsylvania State University University Park Pennsylvania16802USA
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27
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Schliep EM, Collins SM, Rojas-Salazar S, Lottig NR, Stanley EH. Data fusion model for speciated nitrogen to identify environmental drivers and improve estimation of nitrogen in lakes. Ann Appl Stat 2020. [DOI: 10.1214/20-aoas1371] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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28
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Stachelek J, Weng W, Carey CC, Kemanian AR, Cobourn KM, Wagner T, Weathers KC, Soranno PA. Granular measures of agricultural land use influence lake nitrogen and phosphorus differently at macroscales. ECOLOGICAL APPLICATIONS : A PUBLICATION OF THE ECOLOGICAL SOCIETY OF AMERICA 2020; 30:e02187. [PMID: 32485044 DOI: 10.1002/eap.2187] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 04/02/2020] [Accepted: 04/16/2020] [Indexed: 06/11/2023]
Abstract
Agricultural land use is typically associated with high stream nutrient concentrations and increased nutrient loading to lakes. For lakes, evidence for these associations mostly comes from studies on individual lakes or watersheds that relate concentrations of nitrogen (N) or phosphorus (P) to aggregate measures of agricultural land use, such as the proportion of land used for agriculture in a lake's watershed. However, at macroscales (i.e., in hundreds to thousands of lakes across large spatial extents), there is high variability around such relationships and it is unclear whether considering more granular (or detailed) agricultural data, such as fertilizer application, planting of specific crops, or the extent of near-stream cropping, would improve prediction and inform understanding of lake nutrient drivers. Furthermore, it is unclear whether lake N and P would have different relationships to such measures and whether these relationships would vary by region, since regional variation has been observed in prior studies using aggregate measures of agriculture. To address these knowledge gaps, we examined relationships between granular measures of agricultural activity and lake total phosphorus (TP) and total nitrogen (TN) concentrations in 928 lakes and their watersheds in the Northeastern and Midwest U.S. using a Bayesian hierarchical modeling approach. We found that both lake TN and TP concentrations were related to these measures of agriculture, especially near-stream agriculture. The relationships between measures of agriculture and lake TN concentrations were more regionally variable than those for TP. Conversely, TP concentrations were more strongly related to lake-specific measures like depth and watershed hydrology relative to TN. Our finding that lake TN and TP concentrations have different relationships with granular measures of agricultural activity has implications for the design of effective and efficient policy approaches to maintain and improve water quality.
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Affiliation(s)
- Joseph Stachelek
- Department of Fisheries and Wildlife, Michigan State University, 480 Wilson Road, East Lansing, Michigan, 48824, USA
| | - W Weng
- School of Business, State University of New York College at Geneseo, 1 College Circle, Geneseo, New York, 14454, USA
| | - C C Carey
- Department of Biological Sciences, Virginia Tech, 926 W Campus Drive, Blacksburg, Virginia, 24061, USA
| | - A R Kemanian
- Department of Plant Science, The Pennsylvania State University, 247 Agricultural Sciences and Industries Bldg., University Park, Pennsylvania, 16802, USA
| | - K M Cobourn
- Department of Forest Resources and Environmental Conservation, Virginia Tech, 310 W Campus Drive, Blacksburg, Virginia, 24061, USA
| | - T Wagner
- U.S. Geological Survey, Pennsylvania Cooperative Fish and Wildlife Research Unit, The Pennsylvania State University, University Park, Pennsylvania, USA
| | - K C Weathers
- Cary Institute of Ecosystem Studies, 2801 Sharon Turnpike, Millbrook, New York, 12545, USA
| | - P A Soranno
- Department of Fisheries and Wildlife, Michigan State University, 480 Wilson Road, East Lansing, Michigan, 48824, USA
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29
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Liang Z, Soranno PA, Wagner T. The role of phosphorus and nitrogen on chlorophyll a: Evidence from hundreds of lakes. WATER RESEARCH 2020; 185:116236. [PMID: 32739700 DOI: 10.1016/j.watres.2020.116236] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 07/24/2020] [Accepted: 07/25/2020] [Indexed: 06/11/2023]
Abstract
The effect of nutrients on phytoplankton biomass in lakes continues to be a subject of debate by aquatic scientists. However, determining whether or not chlorophyll a (CHL) is limited by phosphorus (P) and/or nitrogen (N) is rarely considered using a probabilistic method in studies of hundreds of lakes across broad spatial extents. Several studies have applied a unified CHL-nutrient relationship to determine nutrient limitation, but pose a risk of ecological fallacy because they neglect spatial heterogeneity in ecological contexts. To examine whether or not CHL is limited by P, N, or both nutrients in hundreds of lakes and across diverse ecological settings, a probabilistic machine learning method, Bayesian Network, was applied. Spatial heterogeneity in ecological context was accommodated by the probabilistic nature of the results. We analyzed data from 1382 lakes in 17 US states to evaluate the cause-effect relationships between CHL and nutrients. Observations of CHL, total phosphorus (TP), and total nitrogen (TN) were discretized into three trophic states (oligo-mesotrophic, eutrophic, and hypereutrophic) to train the model. We found that although both nutrients were related to CHL trophic state, TP was more related to CHL than TN, especially under oligo-mesotrophic and eutrophic CHL conditions. However, when the CHL trophic state was hypereutrophic, both TP and TN were important. These results provide additional evidence that P-limitation is more likely under oligo-mesotrophic or eutrophic CHL conditions and that co-limitation of P and N occurs under hypereutrophic CHL conditions. We also found a decreasing pattern of the TN/TP ratio with increasing CHL concentrations, which might be a key driver for the role change of nutrients. Previous work performed at smaller scales support our findings, indicating potential for extension of our findings to other regions. Our findings enhance the understanding of nutrient limitation at macroscales and revealed that the current debate on the limiting nutrient might be caused by failure to consider CHL trophic state. Our findings also provide prior information for the site-specific eutrophication management of unsampled or data-limited lakes.
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Affiliation(s)
- Zhongyao Liang
- Pennsylvania Cooperative Fish and Wildlife Research Unit, Pennsylvania State University, 407 Forest Resources Building, University Park, Pennsylvania 16802, USA.
| | - Patricia A Soranno
- Department of Fisheries and Wildlife, Michigan State University, 480 Wilson Road, East Lansing, Michigan 48824, USA.
| | - Tyler Wagner
- U.S. Geological Survey, Pennsylvania Cooperative Fish and Wildlife Research Unit, Pennsylvania State University, 402 Forest Resources Building, University Park, Pennsylvania 16802, USA.
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30
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Filazzola A, Mahdiyan O, Shuvo A, Ewins C, Moslenko L, Sadid T, Blagrave K, Imrit MA, Gray DK, Quinlan R, O'Reilly CM, Sharma S. A database of chlorophyll and water chemistry in freshwater lakes. Sci Data 2020; 7:310. [PMID: 32963248 PMCID: PMC7508946 DOI: 10.1038/s41597-020-00648-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 08/25/2020] [Indexed: 11/09/2022] Open
Abstract
Measures of chlorophyll represent the algal biomass in freshwater lakes that is often used by managers as a proxy for water quality and lake productivity. However, chlorophyll concentrations in lakes are dependent on many interacting factors, including nutrient inputs, mixing regime, lake depth, climate, and anthropogenic activities within the watershed. Therefore, integrating a broad scale dataset of lake physical, chemical, and biological characteristics can help elucidate the response of freshwater ecosystems to global change. We synthesized a database of measured chlorophyll a (chla) values, associated water chemistry variables, and lake morphometric characteristics for 11,959 freshwater lakes distributed across 72 countries. Data were collected based on a systematic review examining 3322 published manuscripts that measured lake chla, and we supplemented these data with online repositories such as The Knowledge Network for Biocomplexity, Dryad, and Pangaea. This publicly available database can be used to improve our understanding of how chlorophyll levels respond to global environmental change and provide baseline comparisons for environmental managers responsible for maintaining water quality in lakes.
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Affiliation(s)
| | | | - Arnab Shuvo
- Department of Biology, York University, Toronto, Canada
| | - Carolyn Ewins
- Department of Biology, York University, Toronto, Canada
| | - Luke Moslenko
- Department of Biology, York University, Toronto, Canada
| | - Tanzil Sadid
- Department of Biology, York University, Toronto, Canada
| | | | | | - Derek K Gray
- Department of Biology, Wilfrid Laurier University, Waterloo, Canada
| | | | | | - Sapna Sharma
- Department of Biology, York University, Toronto, Canada
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31
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Soranno PA, Cheruvelil KS, Liu B, Wang Q, Tan PN, Zhou J, King KBS, McCullough IM, Stachelek J, Bartley M, Filstrup CT, Hanks EM, Lapierre JF, Lottig NR, Schliep EM, Wagner T, Webster KE. Ecological prediction at macroscales using big data: Does sampling design matter? ECOLOGICAL APPLICATIONS : A PUBLICATION OF THE ECOLOGICAL SOCIETY OF AMERICA 2020; 30:e02123. [PMID: 32160362 DOI: 10.1002/eap.2123] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 12/13/2019] [Accepted: 01/06/2020] [Indexed: 06/10/2023]
Abstract
Although ecosystems respond to global change at regional to continental scales (i.e., macroscales), model predictions of ecosystem responses often rely on data from targeted monitoring of a small proportion of sampled ecosystems within a particular geographic area. In this study, we examined how the sampling strategy used to collect data for such models influences predictive performance. We subsampled a large and spatially extensive data set to investigate how macroscale sampling strategy affects prediction of ecosystem characteristics in 6,784 lakes across a 1.8-million-km2 area. We estimated model predictive performance for different subsets of the data set to mimic three common sampling strategies for collecting observations of ecosystem characteristics: random sampling design, stratified random sampling design, and targeted sampling. We found that sampling strategy influenced model predictive performance such that (1) stratified random sampling designs did not improve predictive performance compared to simple random sampling designs and (2) although one of the scenarios that mimicked targeted (non-random) sampling had the poorest performing predictive models, the other targeted sampling scenarios resulted in models with similar predictive performance to that of the random sampling scenarios. Our results suggest that although potential biases in data sets from some forms of targeted sampling may limit predictive performance, compiling existing spatially extensive data sets can result in models with good predictive performance that may inform a wide range of science questions and policy goals related to global change.
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Affiliation(s)
- Patricia A Soranno
- Department of Fisheries and Wildlife, Michigan State University, 480 Wilson Road, East Lansing, Michigan, 48824, USA
| | - Kendra Spence Cheruvelil
- Department of Fisheries and Wildlife, Michigan State University, 480 Wilson Road, East Lansing, Michigan, 48824, USA
- Lyman Briggs College, Michigan State University, 919 East Shaw Lane, East Lansing, Michigan, 48825, USA
| | - Boyang Liu
- Department of Computer Science and Engineering, Michigan State University, 428 South Shaw Lane, East Lansing, Michigan, 48824, USA
| | - Qi Wang
- Department of Computer Science and Engineering, Michigan State University, 428 South Shaw Lane, East Lansing, Michigan, 48824, USA
| | - Pang-Ning Tan
- Department of Computer Science and Engineering, Michigan State University, 428 South Shaw Lane, East Lansing, Michigan, 48824, USA
| | - Jiayu Zhou
- Department of Computer Science and Engineering, Michigan State University, 428 South Shaw Lane, East Lansing, Michigan, 48824, USA
| | - Katelyn B S King
- Department of Fisheries and Wildlife, Michigan State University, 480 Wilson Road, East Lansing, Michigan, 48824, USA
| | - Ian M McCullough
- Department of Fisheries and Wildlife, Michigan State University, 480 Wilson Road, East Lansing, Michigan, 48824, USA
| | - Joseph Stachelek
- Department of Fisheries and Wildlife, Michigan State University, 480 Wilson Road, East Lansing, Michigan, 48824, USA
| | - Meridith Bartley
- Department of Statistics, The Pennsylvania State University, 324 Thomas Building, University Park, Pennsylvania, 16802, USA
| | - Christopher T Filstrup
- Natural Resources Research Institute, University of Minnesota Duluth, 5013 Miller Trunk Highway, Duluth, Minnesota, 55811, USA
| | - Ephraim M Hanks
- Department of Statistics, The Pennsylvania State University, 324 Thomas Building, University Park, Pennsylvania, 16802, USA
| | - Jean-François Lapierre
- Sciences Biologiques, Universite de Montreal, Pavillon Marie-Victorin, CP 6128, succursale Centre-Ville, Montreal, Quebec, H3C 3J7, Canada
| | - Noah R Lottig
- Center for Limnology Trout Lake Station, University of Wisconsin Madison, Boulder Junction, Wisconsin, 54512, USA
| | - Erin M Schliep
- Department of Statistics, University of Missouri, 146 Middlebush Hall, Columbia, Missouri, 65211, USA
| | - Tyler Wagner
- U.S. Geological Survey, Pennsylvania Cooperative Fish and Wildlife Research Unit, Pennsylvania State University, Forest Resources Building, University Park, Pennsylvania, 16802, USA
| | - Katherine E Webster
- Department of Fisheries and Wildlife, Michigan State University, 480 Wilson Road, East Lansing, Michigan, 48824, USA
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33
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Dugan HA, Skaff NK, Doubek JP, Bartlett SL, Burke SM, Krivak-Tetley FE, Summers JC, Hanson PC, Weathers KC. Lakes at Risk of Chloride Contamination. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:6639-6650. [PMID: 32353225 DOI: 10.1021/acs.est.9b07718] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Lakes in the Midwest and Northeast United States are at risk of anthropogenic chloride contamination, but there is little knowledge of the prevalence and spatial distribution of freshwater salinization. Here, we use a quantile regression forest (QRF) to leverage information from 2773 lakes to predict the chloride concentration of all 49 432 lakes greater than 4 ha in a 17-state area. The QRF incorporated 22 predictor variables, which included lake morphometry characteristics, watershed land use, and distance to the nearest road and interstate. Model predictions had an r2 of 0.94 for all chloride observations, and an r2 of 0.86 for predictions of the median chloride concentration observed at each lake. The four predictors with the largest influence on lake chloride concentrations were low and medium intensity development in the watershed, crop density in the watershed, and distance to the nearest interstate. Almost 2000 lakes are predicted to have chloride concentrations above 50 mg L-1 and should be monitored. We encourage management and governing agencies to use lake-specific model predictions to assess salt contamination risk as well as to augment their monitoring strategies to more comprehensively protect freshwater ecosystems from salinization.
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Affiliation(s)
- Hilary A Dugan
- Center for Limnology, University of Wisconsin-Madison. 680 North Park Street Madison, Wisconsin 53706, United States
| | - Nicholas K Skaff
- Department of Fisheries and Wildlife, Michigan State University, 13 Natural Resources Building, East Lansing, Michigan 48824, United States
| | - Jonathan P Doubek
- School of Natural Resources & Environment and Center for Freshwater Research and Education, Lake Superior State University, Sault Sainte Marie, Michigan 49783, United States
| | - Sarah L Bartlett
- NEW Water, 2231 North Quincy Street Green Bay, Wisconsin 54302, United States
| | - Samantha M Burke
- University of Guelph, School of Environmental Sciences, Guelph, Ontario N1G 2W1, Canada
- Aquatic Contaminants Research Division, Environment & Climate Change Canada, Burlington, Ontario L7S 1A1, Canada
| | - Flora E Krivak-Tetley
- Department of Biological Sciences, Dartmouth College, 78 College Street, Hanover, New Hampshire 03768, United States
| | - Jamie C Summers
- WSP Canada Incorporated, 2300 Yonge Street, Toronto, Ontario M4P 1E4, Canada
| | - Paul C Hanson
- Center for Limnology, University of Wisconsin-Madison. 680 North Park Street Madison, Wisconsin 53706, United States
| | - Kathleen C Weathers
- Cary Institute of Ecosystem Studies, Millbrook, New York 12545, United States
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Nobre RLG, Caliman A, Cabral CR, Araújo FDC, Guérin J, Dantas FDCC, Quesado LB, Venticinque EM, Guariento RD, Amado AM, Kelly P, Vanni MJ, Carneiro LS. Precipitation, landscape properties and land use interactively affect water quality of tropical freshwaters. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 716:137044. [PMID: 32059302 DOI: 10.1016/j.scitotenv.2020.137044] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 01/29/2020] [Accepted: 01/30/2020] [Indexed: 06/10/2023]
Abstract
Globally, conversion of pristine areas to anthropogenic landscapes is one of the main causes of ecosystem service losses. Land uses associated with urbanization and farming can be major sources of pollution to freshwaters promoting artificial inputs of several elements, leading to impaired water quality. However, how the effects of land use on freshwater quality are contingent on properties of the local landscape and climate is still poorly understood. The aim of this study was to evaluate the effects of landscape properties (morphometric measurements of lakes and their catchments), precipitation patterns, and land use properties (extent and proximity of the land use to freshwaters) on water quality of 98 natural lakes and reservoirs in northeast Brazil. Water quality impairment (WQI) was expressed as a composite variable incorporating parameters correlated with eutrophication including nitrogen (N), phosphorus (P) and Chlorophyll-a concentration. Regression tree analysis showed that WQI is mainly related to highly impacted "buffer areas". However, the effects of land use in these adjacent lands were contingent on precipitation variability for 13% of waterbodies and on surface area of the buffer in relation to the volume of waterbody (BA:Vol) for 87% of waterbodies. Overall, effects on WQI originating from the land use in the adjacent portion of the lake were amplified by high precipitation variability for ecosystems with highly impacted buffer areas and by high BA:Vol for ecosystems with less impacted buffer areas, indicating that ecosystems subjected to intense episodic rainfall events (e.g. storms) and higher buffer areas relative to aquatic ecosystem size (i.e. small waterbodies) are more susceptible to impacts of land use. Land use at the catchment scale was important for the largest ecosystems. Thus, our findings point toward the need for considering a holistic approach to managing water quality, which includes watershed management within the context of climate change.
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Affiliation(s)
| | - Adriano Caliman
- Programa de Pós-Graduação em Ecologia, Universidade Federal do Rio Grande do Norte, Natal, RN, Brazil; Departamento de Ecologia, Universidade Federal do Rio Grande do Norte, Natal, RN 59078-900, Brazil.
| | - Camila Rodrigues Cabral
- Departamento de Ciências do Mar, Universidade Federal de São Paulo, Santos, SP 11030-400, Brazil
| | | | - Joris Guérin
- Instituto de Computação, Universidade Federal Fluminense, Rio de Janeiro, RJ, Brazil
| | | | - Letícia Barbosa Quesado
- Departamento de Ecologia, Universidade Federal do Rio Grande do Norte, Natal, RN 59078-900, Brazil
| | - Eduardo Martins Venticinque
- Programa de Pós-Graduação em Ecologia, Universidade Federal do Rio Grande do Norte, Natal, RN, Brazil; Departamento de Ecologia, Universidade Federal do Rio Grande do Norte, Natal, RN 59078-900, Brazil
| | - Rafael Dettogni Guariento
- Laboratório de Ecologia, Instituto de Biociências, Universidade Federal de Mato Grosso do Sul, MS, Brazil
| | - André Megali Amado
- Programa de Pós-Graduação em Ecologia, Universidade Federal do Rio Grande do Norte, Natal, RN, Brazil; Departamento de Biologia, Universidade Federal de Juiz de Fora, Juiz de Fora, MG 36036-900, Brazil
| | - Patrick Kelly
- Department of Biology, Rhodes College, Memphis, United States
| | - Michael J Vanni
- Department of Biology, Miami University, Oxford, OH, United States
| | - Luciana Silva Carneiro
- Programa de Pós-Graduação em Ecologia, Universidade Federal do Rio Grande do Norte, Natal, RN, Brazil; Departamento de Ecologia, Universidade Federal do Rio Grande do Norte, Natal, RN 59078-900, Brazil
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Improvement in municipal wastewater treatment alters lake nitrogen to phosphorus ratios in populated regions. Proc Natl Acad Sci U S A 2020; 117:11566-11572. [PMID: 32385161 DOI: 10.1073/pnas.1920759117] [Citation(s) in RCA: 82] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Large-scale and rapid improvement in wastewater treatment is common practice in developing countries, yet this influence on nutrient regimes in receiving waterbodies is rarely examined at broad spatial and temporal scales. Here, we present a study linking decadal nutrient monitoring data in lakes with the corresponding estimates of five major anthropogenic nutrient discharges in their surrounding watersheds over time. Within a continuous monitoring dataset covering the period 2008 to 2017, we find that due to different rates of change in TN and TP concentrations, 24 of 46 lakes, mostly located in China's populated regions, showed increasing TN/TP mass ratios; only 3 lakes showed a decrease. Quantitative relationships between in-lake nutrient concentrations (and their ratios) and anthropogenic nutrient discharges in the surrounding watersheds indicate that increase of lake TN/TP ratios is associated with the rapid improvement in municipal wastewater treatment. Due to the higher removal efficiency of TP compared with TN, TN/TP mass ratios in total municipal wastewater discharge have continued to increase from a median of 10.7 (95% confidence interval, 7.6 to 15.1) in 2008 to 17.7 (95% confidence interval, 13.2 to 27.2) in 2017. Improving municipal wastewater collection and treatment worldwide is an important target within the 17 sustainable development goals set by the United Nations. Given potential ecological impacts on biodiversity and ecosystem function of altered nutrient ratios in wastewater discharge, our results suggest that long-term strategies for domestic wastewater management should not merely focus on total reductions of nutrient discharges but also consider their stoichiometric balance.
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36
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Walder A, Hanks EM. Bayesian analysis of spatial generalized linear mixed models with Laplace moving average random fields. Comput Stat Data Anal 2020. [DOI: 10.1016/j.csda.2019.106861] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Qin B, Zhou J, Elser JJ, Gardner WS, Deng J, Brookes JD. Water Depth Underpins the Relative Roles and Fates of Nitrogen and Phosphorus in Lakes. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:3191-3198. [PMID: 32073831 DOI: 10.1021/acs.est.9b05858] [Citation(s) in RCA: 143] [Impact Index Per Article: 35.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Eutrophication mitigation is an ongoing priority for aquatic ecosystems. However, the current eutrophication control strategies (phosphorus (P) and/or nitrogen (N)) are guided mainly by nutrient addition experiments in small waters without encompassing all in-lake biogeochemical processes that are associated largely with lake morphological characteristics. Here, we use a global lake data set (573 lakes) to show that the relative roles of N vs P in affecting eutrophication are underpinned by water depth. Mean depth and maximum depth relative to mixing depth were used to distinguish shallow (mixing depth > maximum depth), deep (mixing depth < mean depth), and transitional (mean depth ≤ mixing depth ≤ maximum depth) lakes in this study. TN/TP ratio (by mass) was used as an indicator of potential lake nutrient limitation, i.e., N only limitation if N/P < 9, N + P colimitation if 9 ≤ N/P < 22.6, and P only limitation if N/P ≥ 22.6. The results show that eutrophication is favored in shallow lakes, frequently (66.2%) with N limitation while P limitation predominated (94.4%) in most lakes but especially in deep ones. The importance of N limitation increases but P limitation decreases with lake trophic status while N and P colimitation occurs primarily (59.4%) in eutrophic lakes. These results demonstrate that phosphorus reduction can mitigate eutrophication in most large lakes but a dual N and P reduction may be needed in eutrophic lakes, especially in shallow ones (or bays). Our analysis helps clarify the long debate over whether N, P, or both control primary production. While these results imply that more resources be invested in nitrogen management, given the high costs of nitrogen pollution reduction, more comprehensive results from carefully designed experiments at different scales are needed to further verify this modification of the existing eutrophication mitigation paradigm.
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Affiliation(s)
- Boqiang Qin
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, 73 East Beijing Road, Nanjing 210008, P. R. China
- School of Geography & Ocean Science, Nanjing University, 163 Xianlin Street, Nanjing 210023, P. R. China
| | - Jian Zhou
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, 73 East Beijing Road, Nanjing 210008, P. R. China
| | - James J Elser
- Flathead Lake Biological Station, University of Montana, Polson, Montana 59860, United States
- School of Life Sciences & School of Sustainability, Arizona State University, Tempe, Arizona 85287-4501, United States
| | - Wayne S Gardner
- Marine Science Institute, University of Texas at Austin, Port Aransas, Texas 78373, United States
| | - Jianming Deng
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, 73 East Beijing Road, Nanjing 210008, P. R. China
| | - Justin D Brookes
- Water Research Centre, School of Biological Sciences, The University of Adelaide, Benham Building, Adelaide, South Australia 5005, Australia
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Balachandran P, Beck CR. Structural variant identification and characterization. Chromosome Res 2020; 28:31-47. [PMID: 31907725 PMCID: PMC7131885 DOI: 10.1007/s10577-019-09623-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 10/15/2019] [Accepted: 11/24/2019] [Indexed: 01/06/2023]
Abstract
Structural variant (SV) differences between human genomes can cause germline and mosaic disease as well as inter-individual variation. De-regulation of accurate DNA repair and genomic surveillance mechanisms results in a large number of SVs in cancer. Analysis of the DNA sequences at SV breakpoints can help identify pathways of mutagenesis and regions of the genome that are more susceptible to rearrangement. Large-scale SV analyses have been enabled by high-throughput genome-level sequencing on humans in the past decade. These studies have shed light on the mechanisms and prevalence of complex genomic rearrangements. Recent advancements in both sequencing and other mapping technologies as well as calling algorithms for detection of genomic rearrangements have helped propel SV detection into population-scale studies, and have begun to elucidate previously inaccessible regions of the genome. Here, we discuss the genomic organization of simple and complex SVs, the molecular mechanisms of their formation, and various ways to detect them. We also introduce methods for characterizing SVs and their consequences on human genomes.
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Affiliation(s)
| | - Christine R Beck
- The Jackson Laboratory for Genomic Medicine, Farmington, CT, 06032, USA.
- Department of Genetics and Genome Sciences, Institute for Systems Genomics, University of Connecticut Health Center, Farmington, CT, 06030, USA.
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Research Trends in the Use of Remote Sensing for Inland Water Quality Science: Moving Towards Multidisciplinary Applications. WATER 2020. [DOI: 10.3390/w12010169] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Remote sensing approaches to measuring inland water quality date back nearly 50 years to the beginning of the satellite era. Over this time span, hundreds of peer-reviewed publications have demonstrated promising remote sensing models to estimate biological, chemical, and physical properties of inland waterbodies. Until recently, most of these publications focused largely on algorithm development as opposed to implementation of those algorithms to address specific science questions. This slow evolution contrasts with terrestrial and oceanic remote sensing, where methods development in the 1970s led to publications focused on understanding spatially expansive, complex processes as early as the mid-1980s. This review explores the progression of inland water quality remote sensing from methodological development to scientific applications. We use bibliometric analysis to assess overall patterns in the field and subsequently examine 236 key papers to identify trends in research focus and scale. The results highlight an initial 30 year period where the majority of publications focused on model development and validation followed by a spike in publications, beginning in the early-2000s, applying remote sensing models to analyze spatiotemporal trends, drivers, and impacts of changing water quality on ecosystems and human populations. Recent and emerging resources, including improved data availability and enhanced processing platforms, are enabling researchers to address challenging science questions and model spatiotemporally explicit patterns in water quality. Examination of the literature shows that the past 10–15 years has brought about a focal shift within the field, where researchers are using improved computing resources, datasets, and operational remote sensing algorithms to better understand complex inland water systems. Future satellite missions promise to continue these improvements by providing observational continuity with spatial/spectral resolutions ideal for inland waters.
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Huot Y, Brown CA, Potvin G, Antoniades D, Baulch HM, Beisner BE, Bélanger S, Brazeau S, Cabana H, Cardille JA, Del Giorgio PA, Gregory-Eaves I, Fortin MJ, Lang AS, Laurion I, Maranger R, Prairie YT, Rusak JA, Segura PA, Siron R, Smol JP, Vinebrooke RD, Walsh DA. The NSERC Canadian Lake Pulse Network: A national assessment of lake health providing science for water management in a changing climate. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 695:133668. [PMID: 31419692 DOI: 10.1016/j.scitotenv.2019.133668] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 07/26/2019] [Accepted: 07/29/2019] [Indexed: 06/10/2023]
Abstract
The distribution and quality of water resources vary dramatically across Canada, and human impacts such as land-use and climate changes are exacerbating uncertainties in water supply and security. At the national level, Canada has no enforceable standards for safe drinking water and no comprehensive water-monitoring program to provide detailed, timely reporting on the state of water resources. To provide Canada's first national assessment of lake health, the NSERC Canadian Lake Pulse Network was launched in 2016 as an academic-government research partnership. LakePulse uses traditional approaches for limnological monitoring as well as state-of-the-art methods in the fields of genomics, emerging contaminants, greenhouse gases, invasive pathogens, paleolimnology, spatial modelling, statistical analysis, and remote sensing. A coordinated sampling program of about 680 lakes together with historical archives and a geomatics analysis of over 80,000 lake watersheds are used to examine the extent to which lakes are being altered now and in the future, and how this impacts aquatic ecosystem services of societal importance. Herein we review the network context, objectives and methods.
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Affiliation(s)
- Yannick Huot
- Département de géomatique appliquée, Université de Sherbrooke, QC J1K 2R1, Canada; Groupe de recherche interuniversitaire en limnologie et en environnement aquatique (GRIL), Canada.
| | - Catherine A Brown
- Département de géomatique appliquée, Université de Sherbrooke, QC J1K 2R1, Canada
| | - Geneviève Potvin
- Département de géomatique appliquée, Université de Sherbrooke, QC J1K 2R1, Canada; Groupe de recherche interuniversitaire en limnologie et en environnement aquatique (GRIL), Canada
| | - Dermot Antoniades
- Département de géographie, Université Laval, Québec, QC G1V 0A6, Canada
| | - Helen M Baulch
- School of Environment and Sustainability, University of Saskatchewan, Saskatoon S7N 3H5, SK, Canada
| | - Beatrix E Beisner
- Groupe de recherche interuniversitaire en limnologie et en environnement aquatique (GRIL), Canada; Department of Biological Sciences, Université du Québec à Montréal, Montréal H3C 3P8, QC, Canada
| | - Simon Bélanger
- Département de biologie, chimie et géographie, Groupe BORÉAS, Université du Québec à Rimouski, QC G5L 3A1, Canada
| | - Stéphanie Brazeau
- National Microbiology Laboratory, Public Health Agency of Canada, St-Hyacinthe J2S 7C6, QC, Canada
| | - Hubert Cabana
- Département de génie civil et de génie du bâtiment, Université de Sherbrooke, QC J1K 2R1, Canada
| | - Jeffrey A Cardille
- Groupe de recherche interuniversitaire en limnologie et en environnement aquatique (GRIL), Canada; Department of Natural Resource Sciences and McGill School of Environment, McGill University, Montreal H9X 3V9, QC, Canada
| | - Paul A Del Giorgio
- Groupe de recherche interuniversitaire en limnologie et en environnement aquatique (GRIL), Canada; Department of Biological Sciences, Université du Québec à Montréal, Montréal H3C 3P8, QC, Canada
| | - Irene Gregory-Eaves
- Groupe de recherche interuniversitaire en limnologie et en environnement aquatique (GRIL), Canada; Department of Biology, McGill University, Montreal H3A 1B1, QC, Canada
| | - Marie-Josée Fortin
- Department of Ecology & Evolutionary Biology, University of Toronto, Toronto M5S 3B2, ON, Canada
| | - Andrew S Lang
- Department of Biology, Memorial University of Newfoundland, St. John's A1M 2A9, NL, Canada
| | - Isabelle Laurion
- Groupe de recherche interuniversitaire en limnologie et en environnement aquatique (GRIL), Canada; Centre Eau Terre Environnement, Institut national de la recherche scientifique, Québec G1K 9A9, QC, Canada
| | - Roxane Maranger
- Groupe de recherche interuniversitaire en limnologie et en environnement aquatique (GRIL), Canada; Département des sciences biologiques, Université de Montréal, C.P. 6128 succ. Centre-ville, Montréal, QC, Canada
| | - Yves T Prairie
- Groupe de recherche interuniversitaire en limnologie et en environnement aquatique (GRIL), Canada; Department of Biological Sciences, Université du Québec à Montréal, Montréal H3C 3P8, QC, Canada
| | - James A Rusak
- Dorset Environmental Science Centre, Ontario Ministry of the Environment, Conservation and Parks, Dorset P0A 1E0, ON, Canada
| | - Pedro A Segura
- Département de chimie, Université de Sherbrooke, QC J1K 2R1, Canada
| | | | - John P Smol
- Paleoecological Assessment and Research Laboratory (PEARL), Department of Biology, Queen's University, Kingston K7L 3N6, ON, Canada
| | - Rolf D Vinebrooke
- Department of Biological Sciences, Centennial Centre of Interdisciplinary Science, University of Alberta, Edmonton T6G 2E9, AB, Canada
| | - David A Walsh
- Groupe de recherche interuniversitaire en limnologie et en environnement aquatique (GRIL), Canada; Department of Biology, Concordia University, Montreal H4B 1R6, QC, Canada
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Bartley ML, Hanks EM, Schliep EM, Soranno PA, Wagner T. Identifying and characterizing extrapolation in multivariate response data. PLoS One 2019; 14:e0225715. [PMID: 31805095 PMCID: PMC6894872 DOI: 10.1371/journal.pone.0225715] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 11/10/2019] [Indexed: 12/02/2022] Open
Abstract
Faced with limitations in data availability, funding, and time constraints, ecologists are often tasked with making predictions beyond the range of their data. In ecological studies, it is not always obvious when and where extrapolation occurs because of the multivariate nature of the data. Previous work on identifying extrapolation has focused on univariate response data, but these methods are not directly applicable to multivariate response data, which are common in ecological investigations. In this paper, we extend previous work that identified extrapolation by applying the predictive variance from the univariate setting to the multivariate case. We propose using the trace or determinant of the predictive variance matrix to obtain a scalar value measure that, when paired with a selected cutoff value, allows for delineation between prediction and extrapolation. We illustrate our approach through an analysis of jointly modeled lake nutrients and indicators of algal biomass and water clarity in over 7000 inland lakes from across the Northeast and Mid-west US. In addition, we outline novel exploratory approaches for identifying regions of covariate space where extrapolation is more likely to occur using classification and regression trees. The use of our Multivariate Predictive Variance (MVPV) measures and multiple cutoff values when exploring the validity of predictions made from multivariate statistical models can help guide ecological inferences.
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Affiliation(s)
- Meridith L. Bartley
- Department of Statistics, Pennsylvania State University, University Park, Pennsylvania, United States of America
- * E-mail:
| | - Ephraim M. Hanks
- Department of Statistics, Pennsylvania State University, University Park, Pennsylvania, United States of America
| | - Erin M. Schliep
- Department of Statistics, University of Missouri, Columbia, Missouri, United States of America
| | - Patricia A. Soranno
- Department of Fisheries and Wildlife, Michigan State University, East Lansing, Michigan, United States of America
| | - Tyler Wagner
- U.S. Geological Survey, Pennsylvania Cooperative Fish and Wildlife Research Unit, Pennsylvania State University, University Park, Pennsylvania, United States of America
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42
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Qian SS, Stow CA, Nojavan A F, Stachelek J, Cha Y, Alameddine I, Soranno P. The implications of Simpson's paradox for cross-scale inference among lakes. WATER RESEARCH 2019; 163:114855. [PMID: 31325701 DOI: 10.1016/j.watres.2019.114855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 06/20/2019] [Accepted: 07/11/2019] [Indexed: 06/10/2023]
Abstract
Using cross-sectional data for making ecological inference started as a practical means of pooling data to enable meaningful empirical model development. For example, limnologists routinely use sample averages from numerous individual lakes to examine patterns across lakes. The basic assumption behind the use of cross-lake data is often that responses within and across lakes are identical. As data from multiple study units across a wide spatiotemporal scale are increasingly accessible for researchers, an assessment of this assumption is now feasible. In this study, we demonstrate that this assumption is usually unjustified, due largely to a statistical phenomenon known as the Simpson's paradox. Through comparisons of a commonly used empirical model of the effect of nutrients on algal growth developed using several data sets, we discuss the cognitive importance of distinguishing factors affecting lake eutrophication operating at different spatial and temporal scales. Our study proposes the use of the Bayesian hierarchical modeling approach to properly structure the data analysis when data from multiple lakes are employed.
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Affiliation(s)
- Song S Qian
- Department of Environmental Sciences, University of Toledo, 2801 W. Bancroft Street, MS# 604, Toledo, OH, USA.
| | - Craig A Stow
- Great Lakes Environmental Research Laboratory, National Oceanic and Atmospheric Administration, Ann Arbor, MI, USA
| | - Farnaz Nojavan A
- Center for Industrial Ecology, Yale University, New Haven, CT, USA
| | - Joseph Stachelek
- Department of Fisheries and Wildlife, Michigan State University, East Lansing, MI, USA
| | - Yoonkyung Cha
- School of Environmental Engineering, University of Seoul, Seoul, South Korea
| | - Ibrahim Alameddine
- Department of Civil and Environmental Engineering, American University of Beirut, Beirut, Lebanon
| | - Patricia Soranno
- Department of Fisheries and Wildlife, Michigan State University, East Lansing, MI, USA
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Queimaliños C, Reissig M, Pérez GL, Soto Cárdenas C, Gerea M, Garcia PE, García D, Diéguez MC. Linking landscape heterogeneity with lake dissolved organic matter properties assessed through absorbance and fluorescence spectroscopy: Spatial and seasonal patterns in temperate lakes of Southern Andes (Patagonia, Argentina). THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 686:223-235. [PMID: 31176821 DOI: 10.1016/j.scitotenv.2019.05.396] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 05/24/2019] [Accepted: 05/25/2019] [Indexed: 05/22/2023]
Abstract
Hydrological connectivity between terrestrial and aquatic systems is influenced by landscape features. Topography, vegetation cover and type, lake morphometry and climate (seasonality, precipitation) drive the timing, concentration and quality of allochthonous dissolved organic matter (DOM) inputs to lakes, influencing lake metabolism. The impact of climate changes on terrestrial-aquatic linkages depends on regional trends and ecosystems properties. We examined how landscape heterogeneity affects lake DOM in pristine temperate headwater lakes located in sharp bioclimatic gradients at the leeward side of the southern Andes (Patagonia, Argentina), and predicted their potential responses to forecasted changes in regional climate. We assessed DOM properties of deep and shallow lakes spotted along precipitation and altitudinal gradients which reflect on vegetation heterogeneity. Lake DOM (concentration, and chromophoric and fluorescent properties) was related to terrestrial bioclimatic conditions, addressing also DOM bio- and photodegradation processes. Co-effects of climate and vegetation determined the quantity and quality of allochthonous DOM inputs. Higher terrestrial signs showed up at the wettest extreme of the gradient and during the rainy season, being attributable to higher hydrological land-water connectivity, and dense vegetation cover. Under drier conditions, DOM displayed higher photobleaching signs at spatial and temporal scales. The ratio between non-humic and terrestrial humic substances indicated that DOM biodegradation dominates in shallow forested lakes and photodegradation prevails in deep ones, whereas coupled photo- and biological processing shaped the DOM pool of high altitude lakes. Overall, DOM optical metrics captured landscape heterogeneity. Under the forecasted climate changes for Patagonia (decreasing precipitation and increasing temperature), piedmont lakes may experience lower hydrological connectivity, lower terrestrial inputs and, enhanced photobleaching usually associated with longer water residence time. In high altitude lakes, terrestrial DOM inputs are expected to increase due to the upward expansion of native deciduous forests, thus becoming more similar to lakes located lower in the landscape.
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Affiliation(s)
- Claudia Queimaliños
- GESAP (Grupo de Ecología de Sistemas Acuáticos a escala de Paisaje), Instituto de Investigaciones en Biodiversidad y Medioambiente (INIBIOMA), Universidad Nacional del Comahue, CONICET, Quintral 1250, Bariloche (8400), Argentina.
| | - Mariana Reissig
- GESAP (Grupo de Ecología de Sistemas Acuáticos a escala de Paisaje), Instituto de Investigaciones en Biodiversidad y Medioambiente (INIBIOMA), Universidad Nacional del Comahue, CONICET, Quintral 1250, Bariloche (8400), Argentina
| | - Gonzalo L Pérez
- GESAP (Grupo de Ecología de Sistemas Acuáticos a escala de Paisaje), Instituto de Investigaciones en Biodiversidad y Medioambiente (INIBIOMA), Universidad Nacional del Comahue, CONICET, Quintral 1250, Bariloche (8400), Argentina
| | - Carolina Soto Cárdenas
- GESAP (Grupo de Ecología de Sistemas Acuáticos a escala de Paisaje), Instituto de Investigaciones en Biodiversidad y Medioambiente (INIBIOMA), Universidad Nacional del Comahue, CONICET, Quintral 1250, Bariloche (8400), Argentina
| | - Marina Gerea
- GESAP (Grupo de Ecología de Sistemas Acuáticos a escala de Paisaje), Instituto de Investigaciones en Biodiversidad y Medioambiente (INIBIOMA), Universidad Nacional del Comahue, CONICET, Quintral 1250, Bariloche (8400), Argentina
| | - Patricia E Garcia
- GESAP (Grupo de Ecología de Sistemas Acuáticos a escala de Paisaje), Instituto de Investigaciones en Biodiversidad y Medioambiente (INIBIOMA), Universidad Nacional del Comahue, CONICET, Quintral 1250, Bariloche (8400), Argentina
| | - Daniel García
- GESAP (Grupo de Ecología de Sistemas Acuáticos a escala de Paisaje), Instituto de Investigaciones en Biodiversidad y Medioambiente (INIBIOMA), Universidad Nacional del Comahue, CONICET, Quintral 1250, Bariloche (8400), Argentina
| | - María C Diéguez
- GESAP (Grupo de Ecología de Sistemas Acuáticos a escala de Paisaje), Instituto de Investigaciones en Biodiversidad y Medioambiente (INIBIOMA), Universidad Nacional del Comahue, CONICET, Quintral 1250, Bariloche (8400), Argentina
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McCullough IM, Cheruvelil KS, Lapierre JF, Lottig NR, Moritz MA, Stachelek J, Soranno PA. Do lakes feel the burn? Ecological consequences of increasing exposure of lakes to fire in the continental United States. GLOBAL CHANGE BIOLOGY 2019; 25:2841-2854. [PMID: 31301168 DOI: 10.1111/gcb.14732] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 04/03/2019] [Accepted: 04/27/2019] [Indexed: 05/21/2023]
Abstract
Wildfires are becoming larger and more frequent across much of the United States due to anthropogenic climate change. No studies, however, have assessed fire prevalence in lake watersheds at broad spatial and temporal scales, and thus it is unknown whether wildfires threaten lakes and reservoirs (hereafter, lakes) of the United States. We show that fire activity has increased in lake watersheds across the continental United States from 1984 to 2015, particularly since 2005. Lakes have experienced the greatest fire activity in the western United States, Southern Great Plains, and Florida. Despite over 30 years of increasing fire exposure, fire effects on fresh waters have not been well studied; previous research has generally focused on streams, and most of the limited lake-fire research has been conducted in boreal landscapes. We therefore propose a conceptual model of how fire may influence the physical, chemical, and biological properties of lake ecosystems by synthesizing the best available science from terrestrial, aquatic, fire, and landscape ecology. This model also highlights emerging research priorities and provides a starting point to help land and lake managers anticipate potential effects of fire on ecosystem services provided by fresh waters and their watersheds.
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Affiliation(s)
- Ian M McCullough
- Department of Fisheries and Wildlife, Michigan State University, East Lansing, Michigan
| | - Kendra Spence Cheruvelil
- Department of Fisheries and Wildlife, Michigan State University, East Lansing, Michigan
- Lyman Briggs College, Michigan State University, East Lansing, Michigan
| | | | - Noah R Lottig
- Trout Lake Station, University of Wisconsin-Madison, Boulder Junction, Wisconsin
| | - Max A Moritz
- Bren School of Environmental Science & Management, University of California Santa Barbara, Santa Barbara, California
- University of California Cooperative Extension, Agriculture and Natural Resources Division, Santa Barbara, California
| | - Joseph Stachelek
- Department of Fisheries and Wildlife, Michigan State University, East Lansing, Michigan
| | - Patricia A Soranno
- Department of Fisheries and Wildlife, Michigan State University, East Lansing, Michigan
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45
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Jackrel SL, White JD, Evans JT, Buffin K, Hayden K, Sarnelle O, Denef VJ. Genome evolution and host‐microbiome shifts correspond with intraspecific niche divergence within harmful algal bloom‐forming
Microcystis aeruginosa. Mol Ecol 2019; 28:3994-4011. [DOI: 10.1111/mec.15198] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 07/16/2019] [Accepted: 07/17/2019] [Indexed: 01/31/2023]
Affiliation(s)
- Sara L. Jackrel
- Department of Ecology and Evolutionary Biology University of Michigan Ann Arbor MI USA
| | - Jeffrey D. White
- Department of Biology Framingham State University Framingham MA USA
- Department of Fisheries and Wildlife Michigan State University East Lansing MI USA
| | - Jacob T. Evans
- Department of Ecology and Evolutionary Biology University of Michigan Ann Arbor MI USA
| | - Kyle Buffin
- Department of Ecology and Evolutionary Biology University of Michigan Ann Arbor MI USA
| | - Kristen Hayden
- Department of Ecology and Evolutionary Biology University of Michigan Ann Arbor MI USA
| | - Orlando Sarnelle
- Department of Fisheries and Wildlife Michigan State University East Lansing MI USA
| | - Vincent J. Denef
- Department of Ecology and Evolutionary Biology University of Michigan Ann Arbor MI USA
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Soranno PA, Wagner T, Collins SM, Lapierre JF, Lottig NR, Oliver SK. Spatial and temporal variation of ecosystem properties at macroscales. Ecol Lett 2019; 22:1587-1598. [PMID: 31347258 DOI: 10.1111/ele.13346] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 06/03/2019] [Accepted: 06/26/2019] [Indexed: 01/16/2023]
Abstract
Although spatial and temporal variation in ecological properties has been well-studied, crucial knowledge gaps remain for studies conducted at macroscales and for ecosystem properties related to material and energy. We test four propositions of spatial and temporal variation in ecosystem properties within a macroscale (1000 km's) extent. We fit Bayesian hierarchical models to thousands of observations from over two decades to quantify four components of variation - spatial (local and regional) and temporal (local and coherent); and to model their drivers. We found strong support for three propositions: (1) spatial variation at local and regional scales are large and roughly equal, (2) annual temporal variation is mostly local rather than coherent, and, (3) spatial variation exceeds temporal variation. Our findings imply that predicting ecosystem responses to environmental changes at macroscales requires consideration of the dominant spatial signals at both local and regional scales that may overwhelm temporal signals.
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Affiliation(s)
- Patricia A Soranno
- Department of Fisheries and Wildlife, Michigan St. University, 480 Wilson Rd, East Lansing, MI, 48824, USA
| | - Tyler Wagner
- U.S. Geological Survey, Pennsylvania Cooperative Fish & Wildlife Research Unit, Pennsylvania State University, 402 Forest Resources Building, University Park, PA, 16802, USA
| | - Sarah M Collins
- Department of Zoology and Physiology, University of Wyoming, Laramie, WY, 82071, USA
| | - Jean-Francois Lapierre
- Department of Biological Science, University of Montreal, Montreal, Quebec, Canada, H3C 3J7
| | - Noah R Lottig
- Trout Lake Research Station, Univ. of Wisconsin, 3110 Trout Lake Station Drive, Boulder Junction, WI, 54512, USA
| | - Samantha K Oliver
- Upper Midwest Water Science Center, U.S. Geological Survey, 8505 Research Way, Middleton, WI, 53562, USA
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47
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McCullough IM, Cheruvelil KS, Collins SM, Soranno PA. Geographic patterns of the climate sensitivity of lakes. ECOLOGICAL APPLICATIONS : A PUBLICATION OF THE ECOLOGICAL SOCIETY OF AMERICA 2019; 29:e01836. [PMID: 30644621 DOI: 10.1002/eap.1836] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 10/16/2018] [Accepted: 11/13/2018] [Indexed: 05/22/2023]
Abstract
Climate change is a well-recognized threat to lake ecosystems and, although there likely exists geographic variation in the sensitivity of lakes to climate, broad-scale, long-term studies are needed to understand this variation. Further, the potential mediating role of local to regional ecological context on these responses is not well documented. In this study, we examined relationships between climate and water clarity in 365 lakes from 1981 to 2010 in two distinct regions in the northeastern and midwestern United States. We asked (1) How do climate-water-clarity relationships vary across watersheds and between two geographic regions? and (2) Do certain characteristics make some lakes more climate sensitive than others? We found strong differences in climate-water-clarity relationships both within and across the two regions. For example, in the northeastern region, water clarity was often negatively correlated with summer precipitation (median correlation = -0.32, n = 160 lakes), but was not correlated with summer average maximum temperature (median correlation = 0.09, n = 205 lakes). In the midwestern region, water clarity was not related to summer precipitation (median correlation = -0.04), but was often negatively correlated with summer average maximum temperature (median correlation = -0.18). There were few strong relationships between local and sub-regional ecological context and a lake's sensitivity to climate. For example, ecological context variables explained just 16-18% of variation in summer precipitation sensitivity, which was most related to total phosphorus, chlorophyll a, lake depth, and hydrology in both regions. Sensitivity to summer maximum temperature was even less predictable in both regions, with 4% or less of variation explained using all ecological context variables. Overall, we identified differences in the climate sensitivity of lakes across regions and found that local and sub-regional ecological context weakly influences the sensitivity of lakes to climate. Our findings suggest that local to regional drivers may combine to influence the sensitivity of lake ecosystems to climate change, and that sensitivities among lakes are highly variable within and across regions. This variability suggests that lakes are sensitive to different aspects of climate change (temperature vs. precipitation) and that responses of lakes to climate are heterogeneous and complex.
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Affiliation(s)
- Ian M McCullough
- Department of Fisheries and Wildlife, Michigan State University, East Lansing, Michigan, 48824, USA
| | - Kendra Spence Cheruvelil
- Department of Fisheries and Wildlife, Michigan State University, East Lansing, Michigan, 48824, USA
- Lyman Briggs College, Michigan State University, East Lansing, Michigan, 48824, USA
| | - Sarah M Collins
- Center for Limnology, University of Wisconsin-Madison, Madison, Wisconsin, 53706, USA
| | - Patricia A Soranno
- Department of Fisheries and Wildlife, Michigan State University, East Lansing, Michigan, 48824, USA
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48
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Mantzouki E, Beklioǧlu M, Brookes JD, Domis LNDS, Dugan HA, Doubek JP, Grossart HP, Nejstgaard JC, Pollard AI, Ptacnik R, Rose KC, Sadro S, Seelen L, Skaff NK, Teubner K, Weyhenmeyer GA, Ibelings BW. Snapshot Surveys for Lake Monitoring, More Than a Shot in the Dark. Front Ecol Evol 2018; 6. [PMID: 32185176 PMCID: PMC7077876 DOI: 10.3389/fevo.2018.00201] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Evanthia Mantzouki
- Department F.-A. Forel for Environmental and Aquatic Sciences, University of Geneva, Geneva, Switzerland
| | - Meryem Beklioǧlu
- Limnology Laboratory, Department of Biological Sciences, Middle East Technical University, Ankara, Turkey
| | - Justin D Brookes
- Department of Environmental Biology, The University of Adelaide, Adelaide, SA, Australia
| | - Lisette Nicole de Senerpont Domis
- Department of Aquatic Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Wageningen, Netherlands.,Department of Environmental Sciences, Wageningen University & Research, Wageningen, Netherlands
| | - Hilary A Dugan
- Center for Limnology, University of Wisconsin-Madison, Madison, WI, United States
| | - Jonathan P Doubek
- Rubenstein Ecosystem Science Laboratory, University of Vermont, Burlington, VT, United States
| | - Hans-Peter Grossart
- Department of Experimental Limnology, Leibniz Institute of Freshwater Ecology and Inland Fisheries, Stechlin, Germany.,Faculty of Mathematics and Natural Sciences, Institute of Biochemistry and Biology, Potsdam University, Potsdam, Germany
| | - Jens C Nejstgaard
- Department of Experimental Limnology, Leibniz Institute of Freshwater Ecology and Inland Fisheries, Stechlin, Germany
| | - Amina I Pollard
- Office of Water, US Environmental Protection Agency, Washington, DC, United States
| | - Robert Ptacnik
- WasserCluster Lunz, Biologische Station GmbH, Lunz am See, Austria
| | - Kevin C Rose
- Department of Biological Sciences, Rensselaer Polytechnic Institute, Troy, NY, United States
| | - Steven Sadro
- Department of Environmental Science and Policy, University of California, Davis, Davis, CA, United States
| | - Laura Seelen
- Department of Aquatic Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Wageningen, Netherlands.,Department of Environmental Sciences, Wageningen University & Research, Wageningen, Netherlands
| | - Nicholas K Skaff
- Department of Fisheries and Wildlife, Michigan State University, East Lansing, MI, United States
| | - Katrin Teubner
- Department of Limnology and Bio-Oceanography, Faculty of Life Sciences, University of Vienna, Vienna, Austria
| | - Gesa A Weyhenmeyer
- Department of Ecology and Genetics/Limnology, Uppsala University, Uppsala, Sweden
| | - Bastiaan W Ibelings
- Department F.-A. Forel for Environmental and Aquatic Sciences, University of Geneva, Geneva, Switzerland
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49
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Cheruvelil KS, Soranno PA. Data-Intensive Ecological Research Is Catalyzed by Open Science and Team Science. Bioscience 2018. [DOI: 10.1093/biosci/biy097] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Kendra Spence Cheruvelil
- Professor in Lyman Briggs College and the Department of Fisheries and Wildlife
- Conceptualization and writing of this article
| | - Patricia A Soranno
- Professor in the Department of Fisheries and Wildlife, at Michigan State University, in East Lansing
- Conceptualization and writing of this article
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50
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Soranno PA, Bacon LC, Beauchene M, Bednar KE, Bissell EG, Boudreau CK, Boyer MG, Bremigan MT, Carpenter SR, Carr JW, Cheruvelil KS, Christel ST, Claucherty M, Collins SM, Conroy JD, Downing JA, Dukett J, Fergus CE, Filstrup CT, Funk C, Gonzalez MJ, Green LT, Gries C, Halfman JD, Hamilton SK, Hanson PC, Henry EN, Herron EM, Hockings C, Jackson JR, Jacobson-Hedin K, Janus LL, Jones WW, Jones JR, Keson CM, King KBS, Kishbaugh SA, Lapierre JF, Lathrop B, Latimore JA, Lee Y, Lottig NR, Lynch JA, Matthews LJ, McDowell WH, Moore KEB, Neff BP, Nelson SJ, Oliver SK, Pace ML, Pierson DC, Poisson AC, Pollard AI, Post DM, Reyes PO, Rosenberry DO, Roy KM, Rudstam LG, Sarnelle O, Schuldt NJ, Scott CE, Skaff NK, Smith NJ, Spinelli NR, Stachelek JJ, Stanley EH, Stoddard JL, Stopyak SB, Stow CA, Tallant JM, Tan PN, Thorpe AP, Vanni MJ, Wagner T, Watkins G, Weathers KC, Webster KE, White JD, Wilmes MK, Yuan S. LAGOS-NE: a multi-scaled geospatial and temporal database of lake ecological context and water quality for thousands of US lakes. Gigascience 2018; 6:1-22. [PMID: 29053868 PMCID: PMC5721373 DOI: 10.1093/gigascience/gix101] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Accepted: 10/05/2017] [Indexed: 11/18/2022] Open
Abstract
Understanding the factors that affect water quality and the ecological services provided by freshwater ecosystems is an urgent global environmental issue. Predicting how water quality will respond to global changes not only requires water quality data, but also information about the ecological context of individual water bodies across broad spatial extents. Because lake water quality is usually sampled in limited geographic regions, often for limited time periods, assessing the environmental controls of water quality requires compilation of many data sets across broad regions and across time into an integrated database. LAGOS-NE accomplishes this goal for lakes in the northeastern-most 17 US states. LAGOS-NE contains data for 51 101 lakes and reservoirs larger than 4 ha in 17 lake-rich US states. The database includes 3 data modules for: lake location and physical characteristics for all lakes; ecological context (i.e., the land use, geologic, climatic, and hydrologic setting of lakes) for all lakes; and in situ measurements of lake water quality for a subset of the lakes from the past 3 decades for approximately 2600–12 000 lakes depending on the variable. The database contains approximately 150 000 measures of total phosphorus, 200 000 measures of chlorophyll, and 900 000 measures of Secchi depth. The water quality data were compiled from 87 lake water quality data sets from federal, state, tribal, and non-profit agencies, university researchers, and citizen scientists. This database is one of the largest and most comprehensive databases of its type because it includes both in situ measurements and ecological context data. Because ecological context can be used to study a variety of other questions about lakes, streams, and wetlands, this database can also be used as the foundation for other studies of freshwaters at broad spatial and ecological scales.
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Affiliation(s)
- Patricia A Soranno
- Department of Fisheries and Wildlife, Michigan State University, East Lansing, MI 48824, USA
| | - Linda C Bacon
- Department of Environmental Protection, State of Maine, Augusta, ME 04330, USA
| | - Michael Beauchene
- Department of Energy and Environmental Protection, State of Connecticut, Hartford, CT 06106, USA
| | - Karen E Bednar
- Water Resources Program, Lac du Flambeau Tribal Natural Resources, Lac du Flambeau, WI, USA
| | - Edward G Bissell
- Department of Fisheries and Wildlife, Michigan State University, East Lansing, MI 48824, USA
| | - Claire K Boudreau
- Department of Fisheries and Wildlife, Michigan State University, East Lansing, MI 48824, USA
| | - Marvin G Boyer
- Environmental Planning, US Army Corps of Engineers, Kansas City, MO 64106, USA
| | - Mary T Bremigan
- Department of Fisheries and Wildlife, Michigan State University, East Lansing, MI 48824, USA
| | - Stephen R Carpenter
- Center for Limnology, University of Wisconsin Madison, Madison, WI 53706 USA
| | - Jamie W Carr
- Office of Watershed Management, Massachusetts Department of Conservation and Recreation, West Boylston, MA 10583, USA
| | - Kendra S Cheruvelil
- Department of Fisheries and Wildlife, Michigan State University, East Lansing, MI 48824, USA
| | - Samuel T Christel
- Center for Limnology, University of Wisconsin Madison, Madison, WI 53706 USA
| | - Matt Claucherty
- Watershed Protection, Tipp of the Mitt Watershed Council, Petoskey, MI 49770, USA
| | - Sarah M Collins
- Center for Limnology, University of Wisconsin Madison, Madison, WI 53706 USA
| | - Joseph D Conroy
- Division of Wildlife, Inland Fisheries Research Unit, Ohio Department of Natural Resources, Hebron, OH 43025, USA
| | - John A Downing
- Large Lakes Observatory, University of Minnesota, Duluth, MN 55812 USA
| | - Jed Dukett
- Adirondack Lake Survey Corporation, Ray Brook, NY 12977 USA
| | - C Emi Fergus
- National Research Council, US Environmental Protection Agency, Corvallis, OR 97333, USA
| | | | - Clara Funk
- Office of Air and Radiation, US Environmental Protection Agency, Washington, DC 20460, USA
| | | | - Linda T Green
- Natural Resource Science, University of Rhode Island, Kingston, RI 02892 USA
| | - Corinna Gries
- Center for Limnology, University of Wisconsin Madison, Madison, WI 53706 USA
| | - John D Halfman
- Geoscience, Hobart & William Smith Colleges, Geneva, NY 14456 USA
| | - Stephen K Hamilton
- Kellogg Biological Station, Michigan State University, Hickory Corners, MI 49060, USA
| | - Paul C Hanson
- Center for Limnology, University of Wisconsin Madison, Madison, WI 53706 USA
| | - Emily N Henry
- Outreach and Engagement, Oregon State University, Corvallis, OR 97331, USA
| | | | - Celeste Hockings
- Natural Resource Department, Lac du Flambeau Band of Lake Superior Chippewa Indians, Lac du Flambeau, WI 54538, USA
| | - James R Jackson
- Department of Natural Resources, Cornell University, Bridgeport, NY, USA
| | | | - Lorraine L Janus
- Bureau of Water Supply, New York City Department of Environmental Protection, Valhalla, NY 10560, USA
| | - William W Jones
- School of Public and Environmental Affairs, Indiana University, Bloomington, IN 47408, USA
| | - John R Jones
- School of Natural Resources, University of Missouri, Columbia, MO, USA
| | - Caroline M Keson
- Natural Resource Department, Little Traverse Bay Bands of Odawa Indians, Harbor Springs, MI 49740, USA
| | - Katelyn B S King
- Department of Fisheries and Wildlife, Michigan State University, East Lansing, MI 48824, USA
| | - Scott A Kishbaugh
- Division of Water, New York State Department of Environmental Conservation, Albany, NY 12233, USA
| | - Jean-Francois Lapierre
- Department of Biological Science, University of Montreal, Montreal Quebec, Canada, H3C 3J7
| | - Barbara Lathrop
- Pennsylvania Department of Environmental Protection, State of Pennsylvania, Harrisburg, PA 17101 USA
| | - Jo A Latimore
- Department of Fisheries and Wildlife, Michigan State University, East Lansing, MI 48824, USA
| | - Yuehlin Lee
- Office of Watershed Management, Massachusetts Department of Conservation and Recreation, Belchertown, MA 01007, USA
| | - Noah R Lottig
- Trout Lake Research Station, University of Wisconsin, Boulder Junction, WI 54512, USA
| | - Jason A Lynch
- Office of Air and Radiation, US Environmental Protection Agency, Washington, DC 20460, USA
| | - Leslie J Matthews
- Lakes and Ponds Program, Vermont Department of Environmental Conservation, Montpelier, VT 05620, USA
| | - William H McDowell
- Natural Resources and the Environment, University of New Hampshire, Durham, NH 03824, USA
| | - Karen E B Moore
- Water Quality Science and Research, New York City Department of Environmental Protection, Kingston, NY 12401, USA
| | - Brian P Neff
- National Research Program, USGS, Denver CO 80225, USA
| | - Sarah J Nelson
- School of Forest Resources, University of Maine, Orono, ME, USA
| | - Samantha K Oliver
- Center for Limnology, University of Wisconsin Madison, Madison, WI 53706 USA
| | - Michael L Pace
- Department of Environmental Science, University of Virginia, Charlottesville, VA 22904, USA
| | - Donald C Pierson
- Department of Ecology and Genetics, Uppsala University, Uppsala, Sweden
| | - Autumn C Poisson
- Department of Fisheries and Wildlife, Michigan State University, East Lansing, MI 48824, USA
| | | | - David M Post
- Ecology and Evolutionary Biology, Yale University, Connecticut 06511, USA
| | - Paul O Reyes
- Office of Watershed Management, Massachusetts Department of Conservation and Recreation, Belchertown, MA 01007, USA
| | | | - Karen M Roy
- Division of Air Resources, New York State Department of Environmental Conservation, Ray Brook, NY 12977, USA
| | - Lars G Rudstam
- Department of Natural Resources, Cornell University, Ithaca, NY 14850, USA
| | - Orlando Sarnelle
- Department of Fisheries and Wildlife, Michigan State University, East Lansing, MI 48824, USA
| | - Nancy J Schuldt
- Environmental Program, Fond du Lac Band of Lake Superior Chippewa Indians, Cloquet, MN 55720, USA
| | | | - Nicholas K Skaff
- Department of Fisheries and Wildlife, Michigan State University, East Lansing, MI 48824, USA
| | - Nicole J Smith
- Department of Fisheries and Wildlife, Michigan State University, East Lansing, MI 48824, USA
| | - Nick R Spinelli
- Watershed Management, Lake Wallenpaupack Watershed Management District, Hawley, PA, USA
| | - Joseph J Stachelek
- Department of Fisheries and Wildlife, Michigan State University, East Lansing, MI 48824, USA
| | - Emily H Stanley
- Center for Limnology, University of Wisconsin Madison, Madison, WI 53706 USA
| | - John L Stoddard
- Western Ecology Division, Office of Research and Development, US EPA, Corvallis, OR 97333, USA
| | | | - Craig A Stow
- Great Lakes Environmental Research Lab, NOAA, Ann Arbor, MI 47176, USA
| | - Jason M Tallant
- Biological Station, University of Michigan, Pellston, MI 49769, USA
| | - Pang-Ning Tan
- Computer Science and Engineering, Michigan State University, East Lansing, MI 48824, USA
| | - Anthony P Thorpe
- School of Natural Resources, University of Missouri, Columbia, MO, USA
| | - Michael J Vanni
- Department of Zoology, Miami University, Oxford, OH 45056 USA
| | - Tyler Wagner
- Pennsylvania Cooperative Fish and Wildlife Research Unit, USGS, 402 Forest Resources Building, University Park, PA 16802, USA
| | - Gretchen Watkins
- Water Resources Program, Lac du Flambeau Tribal Natural Resources, Lac du Flambeau, WI, USA
| | | | | | - Jeffrey D White
- Biology Department, Framingham State University, Framingham, MA 01702, USA
| | - Marcy K Wilmes
- Department of Environmental Quality, State of Michigan, Lansing, MI 48909, USA
| | - Shuai Yuan
- Computer Science and Engineering, Michigan State University, East Lansing, MI 48824, USA
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