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Hantak MM, Guralnick RP, Cameron AC, Griffing AH, Harrington SM, Weinell JL, Paluh DJ. Colour scales with climate in North American ratsnakes: a test of the thermal melanism hypothesis using community science images. Biol Lett 2022; 18:20220403. [PMID: 36541094 PMCID: PMC9768630 DOI: 10.1098/rsbl.2022.0403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Animal colour is a complex trait shaped by multiple selection pressures that can vary across geography. The thermal melanism hypothesis predicts that darker coloration is beneficial to animals in colder regions because it allows for more rapid solar absorption. Here, we use community science images of three closely related species of North American ratsnakes (genus Pantherophis) to examine if climate predicts colour variation across range-wide scales. We predicted that darker individuals are found in colder regions and higher elevations, in accordance with the thermal melanism hypothesis. Using an unprecedented dataset of over 8000 images, we found strong support for temperature as a key predictor of darker colour, supporting thermal melanism. We also found that elevation and precipitation are predictive of colour, but the direction and magnitude of these effects were more variable across species. Our study is the first to quantify colour variation in Pantherophis ratsnakes, highlighting the value of community science images for studying range-wide colour variation.
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Affiliation(s)
- Maggie M. Hantak
- Florida Museum of Natural History, University of Florida, Gainesville, FL 32611, USA
| | - Robert P. Guralnick
- Florida Museum of Natural History, University of Florida, Gainesville, FL 32611, USA
| | - Alexander C. Cameron
- Department of Biology and Museum of Southwestern Biology, University of New Mexico, Albuquerque, NM 87131, USA
| | - Aaron H. Griffing
- Department of Chemical and Biological Engineering, Princeton University, Princeton, NJ 08544, USA,Department of Molecular Biology, Princeton University, Princeton, NJ 08544, USA,Milwaukee Public Museum, Milwaukee, WI 53233, USA
| | - Sean M. Harrington
- Department of Herpetology, American Museum of Natural History, New York, NY 10024-5192, USA,INBRE Data Science Core, University of Wyoming, Laramie, WY 82071, USA
| | - Jeffrey L. Weinell
- Department of Ecology and Evolutionary Biology and Biodiversity Institute, University of Kansas, Lawrence, KS 66045, USA
| | - Daniel J. Paluh
- Florida Museum of Natural History, University of Florida, Gainesville, FL 32611, USA
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2
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Balk MA, Deck J, Emery KF, Walls RL, Reuter D, LaFrance R, Arroyo-Cabrales J, Barrett P, Blois J, Boileau A, Brenskelle L, Cannarozzi NR, Cruz JA, Dávalos LM, de la Sancha NU, Gyawali P, Hantak MM, Hopkins S, Kohli B, King JN, Koo MS, Lawing AM, Machado H, McCrane SM, McLean B, Morgan ME, Pilaar Birch S, Reed D, Reitz EJ, Sewnath N, Upham NS, Villaseñor A, Yohe L, Davis EB, Guralnick RP. A solution to the challenges of interdisciplinary aggregation and use of specimen-level trait data. iScience 2022; 25:105101. [PMID: 36212022 PMCID: PMC9535407 DOI: 10.1016/j.isci.2022.105101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 03/23/2021] [Accepted: 07/27/2022] [Indexed: 11/28/2022] Open
Abstract
Understanding variation of traits within and among species through time and across space is central to many questions in biology. Many resources assemble species-level trait data, but the data and metadata underlying those trait measurements are often not reported. Here, we introduce FuTRES (Functional Trait Resource for Environmental Studies; pronounced few-tress), an online datastore and community resource for individual-level trait reporting that utilizes a semantic framework. FuTRES already stores millions of trait measurements for paleobiological, zooarchaeological, and modern specimens, with a current focus on mammals. We compare dynamically derived extant mammal species' body size measurements in FuTRES with summary values from other compilations, highlighting potential issues with simply reporting a single mean estimate. We then show that individual-level data improve estimates of body mass—including uncertainty—for zooarchaeological specimens. FuTRES facilitates trait data integration and discoverability, accelerating new research agendas, especially scaling from intra- to interspecific trait variability. Functional Trait Resource for Environmental Studies (FuTRES; few-tress) Individual-level trait datastore for paleo-, zooarcheological, and modern specimens Millions of individual-level trait data records already available for mammals Semantic framework for enhanced interoperability, R package for access, and APIas
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Affiliation(s)
- Meghan A. Balk
- National Ecology Observatory Network, Battelle, Boulder, CO 80301, USA
- Smithsonian Institution, National Museum of Natural History, Washington, DC 20560, USA
- Corresponding author
| | - John Deck
- Berkeley Natural History Museums, University of California, Berkeley, Berkeley, CA 94720, USA
- Biocode LLC, Junction City, OR 97448, USA
| | - Kitty F. Emery
- Florida Museum of Natural History, University of Florida, Gainesville, FL 32611, USA
| | - Ramona L. Walls
- Critical Path Institute, Tucson, AZ 85718, USA
- BIO5 Institute, University of Arizona, Tucson, AZ 85719, USA
| | - Dana Reuter
- Department of Earth Sciences, University of Oregon, Eugene, OR 97403, USA
| | - Raphael LaFrance
- Florida Museum of Natural History, University of Florida, Gainesville, FL 32611, USA
| | - Joaquín Arroyo-Cabrales
- Archaeozoology Lab, Instituto Nacional de Antropologia e Historia, 06060 Mexico City, CdMx, Mexico
| | - Paul Barrett
- Department of Earth Sciences, University of Oregon, Eugene, OR 97403, USA
| | - Jessica Blois
- Department of Life and Environmental Sciences, University of California, Merced, Merced, CA 95343, USA
| | - Arianne Boileau
- Department of Archaeology, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
| | - Laura Brenskelle
- Department of Biology, University of Florida, Gainesville, FL 32611, USA
| | - Nicole R. Cannarozzi
- Florida Museum of Natural History, University of Florida, Gainesville, FL 32611, USA
| | - J. Alberto Cruz
- Archaeozoology Lab, Instituto Nacional de Antropologia e Historia, 06060 Mexico City, CdMx, Mexico
| | | | - Noé U. de la Sancha
- Department of Environmental Science and Studies, DePaul University, Chicago, IL 60614, USA
- Negaunee Integrative Research Center, The Field Museum of Natural History, Chicago, IL 60605, USA
| | | | - Maggie M. Hantak
- Florida Museum of Natural History, University of Florida, Gainesville, FL 32611, USA
| | - Samantha Hopkins
- Department of Earth Sciences, University of Oregon, Eugene, OR 97403, USA
- Museum of Natural and Cultural History, University of Oregon, Eugene, OR 97401, USA
| | - Brooks Kohli
- Department of Biology and Chemistry, Morehead State University, Morehead, KY 40351, USA
| | - Jessica N. King
- Florida Museum of Natural History, University of Florida, Gainesville, FL 32611, USA
| | - Michelle S. Koo
- Museum of Vertebrate Zoology, University of California, Berkeley, Berkeley, CA 94720, USA
| | - A. Michelle Lawing
- Department of Ecology and Conservation Biology, Texas A&M University, College Station, TX 77843, USA
| | - Helena Machado
- Department of Earth Sciences, University of Oregon, Eugene, OR 97403, USA
| | - Samantha M. McCrane
- Department of Anthropology, University of Florida, Gainesville, FL 32611, USA
| | - Bryan McLean
- Department of Biology, University of North Carolina, Greensboro, NC 27412, USA
| | - Michèle E. Morgan
- Peabody Museum of Archaeology and Ethnology, Harvard University, Cambridge, MA 02138, USA
| | - Suzanne Pilaar Birch
- Department of Anthropology, University of Georgia, Athens, GA 30602, USA
- Department of Geography, University of Georgia, Athens, GA 30602, USA
| | - Denne Reed
- Department of Anthropology, University of Texas, Austin, Austin, TX 78712, USA
| | - Elizabeth J. Reitz
- Georgia Museum of Natural History, University of Georgia, Athens, GA 30602, USA
| | - Neeka Sewnath
- Department of Biology, University of Florida, Gainesville, FL 32611, USA
| | - Nathan S. Upham
- School of Life Sciences, Arizona State University, Tempe, AZ 85281, USA
| | - Amelia Villaseñor
- Department of Anthropology, University of Arkansas, Fayetteville, AR 72701, USA
| | - Laurel Yohe
- Department of Bioinformatics and Genomics, University of North Carolina Charlotte, Charlotte, NC 28223, USA
| | - Edward B. Davis
- Department of Earth Sciences, University of Oregon, Eugene, OR 97403, USA
- Department of Biology and Chemistry, Morehead State University, Morehead, KY 40351, USA
- Corresponding author
| | - Robert P. Guralnick
- Florida Museum of Natural History, University of Florida, Gainesville, FL 32611, USA
- Corresponding author
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3
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Hantak MM, Guralnick RP, Zare A, Stucky BJ. Computer vision for assessing species color pattern variation from web-based community science images. iScience 2022; 25:104784. [PMID: 35982791 PMCID: PMC9379571 DOI: 10.1016/j.isci.2022.104784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 05/16/2022] [Accepted: 07/13/2022] [Indexed: 11/30/2022] Open
Abstract
Openly available community science digital vouchers provide a wealth of data to study phenotypic change across space and time. However, extracting phenotypic data from these resources requires significant human effort. Here, we demonstrate a workflow and computer vision model for automatically categorizing species color pattern from community science images. Our work is focused on documenting the striped/unstriped color polymorphism in the Eastern Red-backed Salamander (Plethodon cinereus). We used an ensemble convolutional neural network model to analyze this polymorphism in 20,318 iNaturalist images. Our model was highly accurate (∼98%) despite image heterogeneity. We used the resulting annotations to document extensive niche overlap between morphs, but wider niche breadth for striped morphs at the range-wide scale. Our work showcases key design principles for using machine learning with heterogeneous community science image data to address questions at an unprecedented scale. We built a deep learning model to group color morphs from community science images Our model achieved 98% accuracy for classifying striped and unstriped salamanders We used our model to classify >20,000 images and built morph-specific niche models We then determined if Red-backed salamanders niche partition at a range-wide scale
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Affiliation(s)
- Maggie M. Hantak
- Florida Museum of Natural History, University of Florida, Gainesville, FL 32611, USA
- Corresponding author
| | - Robert P. Guralnick
- Florida Museum of Natural History, University of Florida, Gainesville, FL 32611, USA
| | - Alina Zare
- Department of Electrical, and Computer Engineering, University of Florida, Gainesville, FL 32611, USA
| | - Brian J. Stucky
- Florida Museum of Natural History, University of Florida, Gainesville, FL 32611, USA
- Agricultural Research Service, U.S. Department of Agriculture, Beltsville, MD 20705, USA
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4
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Hantak MM, Federico NA, Blackburn DC, Guralnick RP. Rapid phenotypic change in a polymorphic salamander over 43 years. Sci Rep 2021; 11:22681. [PMID: 34811418 PMCID: PMC8609024 DOI: 10.1038/s41598-021-02124-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 11/10/2021] [Indexed: 11/30/2022] Open
Abstract
Color polymorphic animals offer a unique system for studying intraspecific phenotypic responses to climate change. Discrete color morphs are easy to identify, and correlated trait responses of morphs can indicate how climate warming may facilitate long-term maintenance of polymorphisms. We use a historical dataset spanning 43 years to examine temporal shifts in color morph frequency and body size in response to climate in the Eastern Red-backed Salamander, Plethodon cinereus, which contains a widespread striped/unstriped color polymorphism. We created a pipeline to extract high-throughput trait data from fluid-preserved museum specimens where we batch-photographed salamanders, de-aggregated individual specimens from photographs, and solicited help of community scientists to score color morphs. We used a linear modeling framework that includes information about spatial population structure to demonstrate that color morph frequency and body size vary in response to climate, elevation, and over time, with an overall trend of higher frequency and decreased body size of the striped morph, but increased size of the unstriped morph. These surprising results suggest that morphs may be responding to multiple climate and geographic drivers through co-adapted morphological changes. This work highlights new practices of extracting trait data from museum specimens to demonstrate species phenotypes response to climate change.
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Affiliation(s)
- Maggie M. Hantak
- grid.15276.370000 0004 1936 8091Florida Museum of Natural History, University of Florida, Gainesville, FL USA
| | - Nicholas A. Federico
- grid.15276.370000 0004 1936 8091Florida Museum of Natural History, University of Florida, Gainesville, FL USA
| | - David C. Blackburn
- grid.15276.370000 0004 1936 8091Florida Museum of Natural History, University of Florida, Gainesville, FL USA
| | - Robert P. Guralnick
- grid.15276.370000 0004 1936 8091Florida Museum of Natural History, University of Florida, Gainesville, FL USA
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5
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Belitz MW, Barve V, Doby JR, Hantak MM, Larsen EA, Li D, Oswald JA, Sewnath N, Walters M, Barve N, Earl K, Gardner N, Guralnick RP, Stucky BJ. Climate drivers of adult insect activity are conditioned by life history traits. Ecol Lett 2021; 24:2687-2699. [PMID: 34636143 DOI: 10.1111/ele.13889] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 08/27/2021] [Accepted: 08/27/2021] [Indexed: 02/04/2023]
Abstract
Insect phenological lability is key for determining which species will adapt under environmental change. However, little is known about when adult insect activity terminates and overall activity duration. We used community-science and museum specimen data to investigate the effects of climate and urbanisation on timing of adult insect activity for 101 species varying in life history traits. We found detritivores and species with aquatic larval stages extend activity periods most rapidly in response to increasing regional temperature. Conversely, species with subterranean larval stages have relatively constant durations regardless of regional temperature. Species extended their period of adult activity similarly in warmer conditions regardless of voltinism classification. Longer adult durations may represent a general response to warming, but voltinism data in subtropical environments are likely underreported. This effort provides a framework to address the drivers of adult insect phenology at continental scales and a basis for predicting species response to environmental change.
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Affiliation(s)
- Michael W Belitz
- Florida Museum of Natural History, University of Florida, Gainesville, Florida, USA
| | - Vijay Barve
- Florida Museum of Natural History, University of Florida, Gainesville, Florida, USA.,Department of Entomology, Purdue University, West Lafayette, Indiana, USA
| | - Joshua R Doby
- Florida Museum of Natural History, University of Florida, Gainesville, Florida, USA
| | - Maggie M Hantak
- Florida Museum of Natural History, University of Florida, Gainesville, Florida, USA
| | - Elise A Larsen
- Department of Biology, Georgetown University, Washington, District of Columbia, USA
| | - Daijiang Li
- Florida Museum of Natural History, University of Florida, Gainesville, Florida, USA.,Department of Biological Sciences, Louisiana State University, Baton Rouge, Louisina, USA.,Center for Computation & Technology, Louisiana State University, Baton Rouge, Louisina, USA
| | - Jessica A Oswald
- Florida Museum of Natural History, University of Florida, Gainesville, Florida, USA.,Biology Department, University of Nevada Reno, Reno, Nevada, USA
| | - Neeka Sewnath
- Florida Museum of Natural History, University of Florida, Gainesville, Florida, USA
| | - Mitchell Walters
- Florida Museum of Natural History, University of Florida, Gainesville, Florida, USA
| | - Narayani Barve
- Florida Museum of Natural History, University of Florida, Gainesville, Florida, USA
| | - Kamala Earl
- Florida Museum of Natural History, University of Florida, Gainesville, Florida, USA
| | - Nicholas Gardner
- Florida Museum of Natural History, University of Florida, Gainesville, Florida, USA
| | - Robert P Guralnick
- Florida Museum of Natural History, University of Florida, Gainesville, Florida, USA
| | - Brian J Stucky
- Florida Museum of Natural History, University of Florida, Gainesville, Florida, USA
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6
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Hantak MM, McLean BS, Li D, Guralnick RP. Mammalian body size is determined by interactions between climate, urbanization, and ecological traits. Commun Biol 2021; 4:972. [PMID: 34400755 PMCID: PMC8367959 DOI: 10.1038/s42003-021-02505-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Accepted: 07/28/2021] [Indexed: 11/20/2022] Open
Abstract
Anthropogenically-driven climate warming is a hypothesized driver of animal body size reductions. Less understood are effects of other human-caused disturbances on body size, such as urbanization. We compiled 140,499 body size records of over 100 North American mammals to test how climate and human population density, a proxy for urbanization, and their interactions with species traits, impact body size. We tested three hypotheses of body size variation across urbanization gradients: urban heat island effects, habitat fragmentation, and resource availability. Our results demonstrate that both urbanization and temperature influence mammalian body size variation, most often leading to larger individuals, thus supporting the resource availability hypothesis. In addition, life history and other ecological factors play a critical role in mediating the effects of climate and urbanization on body size. Larger mammals and species that utilize thermal buffering are more sensitive to warmer temperatures, while flexibility in activity time appears to be advantageous in urbanized areas. This work highlights the value of using digitized, natural history data to track how human disturbance drives morphological variation. Anthropogenically-driven climate change is responsible for body size decreases in mammals. Using an important dataset of historically-collected data and data from continental-scale survey efforts from the National Ecological Observatory Network, Hantak et al. show that urbanization plays an important role in mediating this dynamic.
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Affiliation(s)
- Maggie M Hantak
- Department of Natural History, Florida Museum of Natural History, University of Florida, Gainesville, FL, USA.
| | - Bryan S McLean
- Department of Biology, University of North Carolina Greensboro, Greensboro, NC, USA
| | - Daijiang Li
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, USA.,Center for Computation & Technology, Louisiana State University, Baton Rouge, LA, USA
| | - Robert P Guralnick
- Department of Natural History, Florida Museum of Natural History, University of Florida, Gainesville, FL, USA.
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7
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Paluh DJ, Riddell K, Early CM, Hantak MM, Jongsma GFM, Keeffe RM, Magalhães Silva F, Nielsen SV, Vallejo-Pareja MC, Stanley EL, Blackburn DC. Rampant tooth loss across 200 million years of frog evolution. eLife 2021; 10:e66926. [PMID: 34060471 PMCID: PMC8169120 DOI: 10.7554/elife.66926] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 05/12/2021] [Indexed: 01/06/2023] Open
Abstract
Teeth are present in most clades of vertebrates but have been lost completely several times in actinopterygian fishes and amniotes. Using phenotypic data collected from over 500 genera via micro-computed tomography, we provide the first rigorous assessment of the evolutionary history of dentition across all major lineages of amphibians. We demonstrate that dentition is invariably present in caecilians and salamanders, but teeth have been lost completely more than 20 times in frogs, a much higher occurrence of edentulism than in any other vertebrate group. The repeated loss of teeth in anurans is associated with a specialized diet of small invertebrate prey as well as shortening of the lower jaw, but it is not correlated with a reduction in body size. Frogs provide an unparalleled opportunity for investigating the molecular and developmental mechanisms of convergent tooth loss on a large phylogenetic scale.
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Affiliation(s)
- Daniel J Paluh
- Department of Natural History, Florida Museum of Natural History, University of FloridaGainesvilleUnited States
- Department of Biology, University of FloridaGainesvilleUnited States
| | - Karina Riddell
- Department of Natural History, Florida Museum of Natural History, University of FloridaGainesvilleUnited States
| | - Catherine M Early
- Department of Natural History, Florida Museum of Natural History, University of FloridaGainesvilleUnited States
- Biology Department, Science Museum of MinnesotaSaint PaulUnited States
| | - Maggie M Hantak
- Department of Natural History, Florida Museum of Natural History, University of FloridaGainesvilleUnited States
| | - Gregory FM Jongsma
- Department of Natural History, Florida Museum of Natural History, University of FloridaGainesvilleUnited States
| | - Rachel M Keeffe
- Department of Natural History, Florida Museum of Natural History, University of FloridaGainesvilleUnited States
- Department of Biology, University of FloridaGainesvilleUnited States
| | - Fernanda Magalhães Silva
- Department of Natural History, Florida Museum of Natural History, University of FloridaGainesvilleUnited States
- Programa de Pós Graduação em Zoologia, Universidade Federal do Pará, Museu Paraense Emilio GoeldiBelémBrazil
| | - Stuart V Nielsen
- Department of Natural History, Florida Museum of Natural History, University of FloridaGainesvilleUnited States
| | - María Camila Vallejo-Pareja
- Department of Natural History, Florida Museum of Natural History, University of FloridaGainesvilleUnited States
- Department of Biology, University of FloridaGainesvilleUnited States
| | - Edward L Stanley
- Department of Natural History, Florida Museum of Natural History, University of FloridaGainesvilleUnited States
| | - David C Blackburn
- Department of Natural History, Florida Museum of Natural History, University of FloridaGainesvilleUnited States
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8
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Li D, Barve N, Brenskelle L, Earl K, Barve V, Belitz MW, Doby J, Hantak MM, Oswald JA, Stucky BJ, Walters M, Guralnick RP. Climate, urbanization, and species traits interactively drive flowering duration. Glob Chang Biol 2021; 27:892-903. [PMID: 33249694 DOI: 10.1111/gcb.15461] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 11/04/2020] [Indexed: 05/23/2023]
Abstract
A wave of green leaves and multi-colored flowers advances from low to high latitudes each spring. However, little is known about how flowering offset (i.e., ending of flowering) and duration of populations of the same species vary along environmental gradients. Understanding these patterns is critical for predicting the effects of future climate and land-use change on plants, pollinators, and herbivores. Here, we investigated potential climatic and landscape drivers of flowering onset, offset, and duration of 52 plant species with varying key traits. We generated phenology estimates using >270,000 community-science photographs and a novel presence-only phenometric estimation method. We found longer flowering durations in warmer areas, which is more obvious for summer-blooming species compared to spring-bloomers driven by their strongly differing offset dynamics. We also found that higher human population density and higher annual precipitation are associated with delayed flowering offset and extended flowering duration. Finally, offset of woody perennials was more sensitive than herbaceous species to both climate and urbanization drivers. Empirical forecast models suggested that flowering durations will be longer in 2030 and 2050 under representative concentration pathway (RCP) 8.5, especially for summer-blooming species. Our study provides critical insight into drivers of key flowering phenophases and confirms that Hopkins' Bioclimatic Law also applies to flowering durations for summer-blooming species and herbaceous spring-blooming species.
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Affiliation(s)
- Daijiang Li
- Florida Museum of Natural History, University of Florida, Gainesville, FL, USA
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, USA
- Center for Computation & Technology, Louisiana State University, Baton Rouge, LA, USA
| | - Narayani Barve
- Florida Museum of Natural History, University of Florida, Gainesville, FL, USA
| | - Laura Brenskelle
- Florida Museum of Natural History, University of Florida, Gainesville, FL, USA
| | - Kamala Earl
- Florida Museum of Natural History, University of Florida, Gainesville, FL, USA
| | - Vijay Barve
- Florida Museum of Natural History, University of Florida, Gainesville, FL, USA
| | - Michael W Belitz
- Florida Museum of Natural History, University of Florida, Gainesville, FL, USA
| | - Joshua Doby
- Florida Museum of Natural History, University of Florida, Gainesville, FL, USA
| | - Maggie M Hantak
- Florida Museum of Natural History, University of Florida, Gainesville, FL, USA
| | - Jessica A Oswald
- Florida Museum of Natural History, University of Florida, Gainesville, FL, USA
- Biology Department, University of Nevada Reno, Reno, NV, USA
| | - Brian J Stucky
- Florida Museum of Natural History, University of Florida, Gainesville, FL, USA
| | - Mitch Walters
- Florida Museum of Natural History, University of Florida, Gainesville, FL, USA
| | - Robert P Guralnick
- Florida Museum of Natural History, University of Florida, Gainesville, FL, USA
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9
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Hantak MM, Brooks KM, Hickerson CAM, Anthony CD, Kuchta SR. A Spatiotemporal Assessment of Dietary Partitioning between Color Morphs of a Terrestrial Salamander. COPEIA 2020. [DOI: 10.1643/ce-19-264] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Maggie M. Hantak
- Department of Biological Sciences, Ohio Center for Ecological and Evolutionary Studies, Ohio University, Athens, Ohio 45701; (MMH) . Send reprint requests to MMH
| | - Kyle M. Brooks
- Department of Biological Sciences, Ohio Center for Ecological and Evolutionary Studies, Ohio University, Athens, Ohio 45701; (MMH) . Send reprint requests to MMH
| | | | - Carl D. Anthony
- Department of Biology, John Carroll University, University Heights, Ohio 44118
| | - Shawn R. Kuchta
- Department of Biological Sciences, Ohio Center for Ecological and Evolutionary Studies, Ohio University, Athens, Ohio 45701; (MMH) . Send reprint requests to MMH
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10
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Guralnick R, Hantak MM, Li D, McLean BS. Body size trends in response to climate and urbanization in the widespread North American deer mouse, Peromyscus maniculatus. Sci Rep 2020; 10:8882. [PMID: 32483167 PMCID: PMC7264193 DOI: 10.1038/s41598-020-65755-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 04/23/2020] [Indexed: 01/08/2023] Open
Abstract
Body size decline is hypothesized to be a key response to climate warming, including warming driven by urban heat islands. However, urbanization may also generate selective gradients for body size increases in smaller endotherms via habitat fragmentation. Here we utilize a densely sampled, multi-source dataset to examine how climate and urbanization affect body size of Peromyscus maniculatus (PEMA), an abundant rodent found across North America. We predicted PEMA would conform to Bergmann's Rule, e.g. larger individuals in colder climates, spatially and temporally. Hypotheses regarding body size in relation to urbanization are less clear; however, with increased food resources due to greater anthropogenic activity, we expected an increase in PEMA size. Spatial mixed-models showed that PEMA conform to Bergmann's Rule and that PEMA were shorter in more urbanized areas. With the inclusion of decade in mixed-models, we found PEMA mass, but not length, is decreasing over time irrespective of climate or population density. We also unexpectedly found that, over time, smaller-bodied populations of PEMA are getting larger, while larger-bodied populations are getting smaller. Our work highlights the importance of using dense spatiotemporal datasets, and modeling frameworks that account for bias, to better disentangle broad-scale climatic and urbanization effects on body size.
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Affiliation(s)
- Robert Guralnick
- Florida Museum of Natural History, University of Florida, Gainesville, FL, 32611, USA.
| | - Maggie M Hantak
- Florida Museum of Natural History, University of Florida, Gainesville, FL, 32611, USA
| | - Daijiang Li
- Florida Museum of Natural History, University of Florida, Gainesville, FL, 32611, USA
| | - Bryan S McLean
- Florida Museum of Natural History, University of Florida, Gainesville, FL, 32611, USA.,Department of Biology, University of North Carolina Greensboro, Greensboro, NC, 27402, USA
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Radomski T, Hantak MM, Brown AD, Kuchta SR. Multilocus Phylogeography of Eastern Red-Backed Salamanders (Plethodon cinereus): Cryptic Appalachian Diversity and Postglacial Range Expansion. HERPETOLOGICA 2020. [DOI: 10.1655/herpetologica-d-19-00045] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Tom Radomski
- Ohio Center for Ecological and Evolutionary Studies, Department of Biological Sciences, Ohio University, Athens, OH 45701, USA
| | - Maggie M. Hantak
- Ohio Center for Ecological and Evolutionary Studies, Department of Biological Sciences, Ohio University, Athens, OH 45701, USA
| | - Ashley D. Brown
- Ohio Center for Ecological and Evolutionary Studies, Department of Biological Sciences, Ohio University, Athens, OH 45701, USA
| | - Shawn R. Kuchta
- Ohio Center for Ecological and Evolutionary Studies, Department of Biological Sciences, Ohio University, Athens, OH 45701, USA
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Barve VV, Brenskelle L, Li D, Stucky BJ, Barve NV, Hantak MM, McLean BS, Paluh DJ, Oswald JA, Belitz MW, Folk RA, Guralnick RP. Methods for broad-scale plant phenology assessments using citizen scientists' photographs. Appl Plant Sci 2020; 8:e11315. [PMID: 31993257 PMCID: PMC6976896 DOI: 10.1002/aps3.11315] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 11/07/2019] [Indexed: 05/30/2023]
Abstract
PREMISE Citizen science platforms for sharing photographed digital vouchers, such as iNaturalist, are a promising source of phenology data, but methods and best practices for use have not been developed. Here we introduce methods using Yucca flowering phenology as a case study, because drivers of Yucca phenology are not well understood despite the need to synchronize flowering with obligate pollinators. There is also evidence of recent anomalous winter flowering events, but with unknown spatiotemporal extents. METHODS We collaboratively developed a rigorous, consensus-based approach for annotating and sharing whole plant and flower presence data from iNaturalist and applied it to Yucca records. We compared spatiotemporal flowering coverage from our annotations with other broad-scale monitoring networks (e.g., the National Phenology Network) in order to determine the unique value of photograph-based citizen science resources. RESULTS Annotations from iNaturalist were uniquely able to delineate extents of unusual flowering events in Yucca. These events, which occurred in two different regions of the Desert Southwest, did not appear to disrupt the typical-period flowering. DISCUSSION Our work demonstrates that best practice approaches to scoring iNaturalist records provide fine-scale delimitation of phenological events. This approach can be applied to other plant groups to better understand how phenology responds to changing climate.
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Affiliation(s)
- Vijay V Barve
- Florida Museum of Natural History University of Florida Gainesville Florida 32611 USA
| | - Laura Brenskelle
- Florida Museum of Natural History University of Florida Gainesville Florida 32611 USA
| | - Daijiang Li
- Florida Museum of Natural History University of Florida Gainesville Florida 32611 USA
| | - Brian J Stucky
- Florida Museum of Natural History University of Florida Gainesville Florida 32611 USA
| | - Narayani V Barve
- Florida Museum of Natural History University of Florida Gainesville Florida 32611 USA
| | - Maggie M Hantak
- Florida Museum of Natural History University of Florida Gainesville Florida 32611 USA
| | - Bryan S McLean
- Florida Museum of Natural History University of Florida Gainesville Florida 32611 USA
- Department of Biology University of North Carolina Greensboro Greensboro North Carolina 27402 USA
| | - Daniel J Paluh
- Florida Museum of Natural History University of Florida Gainesville Florida 32611 USA
| | - Jessica A Oswald
- Florida Museum of Natural History University of Florida Gainesville Florida 32611 USA
- Biology Department University of Nevada Reno Nevada 89557 USA
| | - Michael W Belitz
- Florida Museum of Natural History University of Florida Gainesville Florida 32611 USA
| | - Ryan A Folk
- Florida Museum of Natural History University of Florida Gainesville Florida 32611 USA
- Department of Biological Sciences Mississippi State University Mississippi State Mississippi 39762 USA
| | - Robert P Guralnick
- Florida Museum of Natural History University of Florida Gainesville Florida 32611 USA
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Hantak MM, Paluh DJ, Hickerson CAM. Comparison of the Diets of Sympatric Erythristic and Striped Morphs ofPlethodon cinereus(Eastern Red-backed Salamander). Northeast Nat (Steuben) 2016. [DOI: 10.1656/045.023.0204] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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