101
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Arribas P, Andújar C, Salces-Castellano A, Emerson BC, Vogler AP. The limited spatial scale of dispersal in soil arthropods revealed with whole-community haplotype-level metabarcoding. Mol Ecol 2020; 30:48-61. [PMID: 32772446 DOI: 10.1111/mec.15591] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 07/27/2020] [Accepted: 07/31/2020] [Indexed: 01/04/2023]
Abstract
Soil arthropod communities are highly diverse and critical for ecosystem functioning. However, our knowledge of spatial structure and the underlying processes of community assembly are scarce, hampered by limited empirical data on species diversity and turnover. We implement a high-throughput sequencing approach to generate comparative data for thousands of arthropods at three hierarchical levels: genetic, species and supra-specific lineages. A joint analysis of the spatial arrangement across these levels can reveal the predominant processes driving the variation in biological assemblages at the local scale. This multihierarchical approach was performed using haplotype-level COI metabarcoding of entire communities of mites, springtails and beetles from three Iberian mountain regions. Tens of thousands of specimens were extracted from deep and superficial soil layers and produced comparative phylogeographic data for >1,000 codistributed species and nearly 3,000 haplotypes. Local assemblage composition differed greatly between grasslands and forests and, within each habitat, showed strong spatial structure and high endemicity. Distance decay was high at all levels, even at the scale of a few kilometres or less. The local distance decay patterns were self-similar for the haplotypes and higher hierarchical entities, and this fractal structure was similar in all regions, suggesting that uniform processes of limited dispersal determine local-scale community assembly. Our results from whole-community metabarcoding provide insight into how dispersal limitations constrain mesofauna community structure within local spatial settings over evolutionary timescales. If generalized across wider areas, the high turnover and endemicity in the soil locally may indicate extremely high richness globally, challenging our current estimations of total arthropod diversity on Earth.
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Affiliation(s)
- Paula Arribas
- Island Ecology and Evolution Research Group (IPNA-CSIC), La Laguna, Spain.,Department of Life Sciences, Natural History Museum, London, UK.,Department of Life Sciences, Imperial College London, Ascot, UK
| | - Carmelo Andújar
- Island Ecology and Evolution Research Group (IPNA-CSIC), La Laguna, Spain.,Department of Life Sciences, Natural History Museum, London, UK.,Department of Life Sciences, Imperial College London, Ascot, UK
| | | | - Brent C Emerson
- Island Ecology and Evolution Research Group (IPNA-CSIC), La Laguna, Spain
| | - Alfried P Vogler
- Department of Life Sciences, Natural History Museum, London, UK.,Department of Life Sciences, Imperial College London, Ascot, UK
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102
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Li Z, Xing Y, Liu Z, Chen X, Jiang X, Xie Z, Heino J. Seasonal changes in metacommunity assembly mechanisms of benthic macroinvertebrates in a subtropical river basin. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 729:139046. [PMID: 32498180 DOI: 10.1016/j.scitotenv.2020.139046] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 04/22/2020] [Accepted: 04/25/2020] [Indexed: 06/11/2023]
Abstract
Unraveling the ecological factors that control variation in local community structure in space and time is fundamental to metacommunity ecology. In this scenario, environmental filtering and spatial processes are recognized as important drivers of community assembly, yet their relative importance is anticipated to vary for biological communities in different seasons, network positions and organisms with distinct dispersal modes. In this study, we used a dataset (macroinvertebrate communities and environmental variables) collected in different seasons from the Ganjiang River in China to test the above ideas. We divided the whole metacommunity in each season into mainstream communities, tributary communities, strictly aquatic dispersers and aquatic/aerial dispersers, and subsequently used variation partitioning to examine the relative contribution of environmental and spatial factors separately for the overall and decomposed components of the metacommunity. Our results showed that both environmental filtering and spatial processes were important drivers of variation in community structure, yet their explanatory powers varied considerably among seasons. Environmental filtering was the primary driver of metacommunity organization in most scenarios, while the effects of spatial processes surpassing environmental filtering occurred only sporadically. For communities in different network positions, tributary communities were structured by both strong environmental filtering and profound effects of spatial processes via dispersal limitation. However, communities in mainstream sites were mainly determined by environmental filtering, and the effects of spatial processes were almost negligible. Moreover, environmental filtering was clearly more important for aquatic/aerial dispersers, while spatial processes were more influential for strictly aquatic dispersers. We thus concluded that environmental filtering, spatial processes, network position and dispersal mode can interact to regulate metacommunity organization of riverine macroinvertebrates. Considering that the relative contribution of these factors varied among seasons, we strongly uphold the idea that community ecology research should go beyond one-season snapshot surveys in river networks.
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Affiliation(s)
- Zhengfei Li
- The Key Laboratory of Aquatic Biodiversity and Conservation, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Yuan Xing
- The Key Laboratory of Aquatic Biodiversity and Conservation, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhenyuan Liu
- The Key Laboratory of Aquatic Biodiversity and Conservation, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiao Chen
- The Key Laboratory of Aquatic Biodiversity and Conservation, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xuankong Jiang
- The Key Laboratory of Aquatic Biodiversity and Conservation, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhicai Xie
- The Key Laboratory of Aquatic Biodiversity and Conservation, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.
| | - Jani Heino
- Freshwater Centre, Finnish Environment Institute, Paavo Havaksen Tie 3, P.O. Box 413, FI-90014 Oulu, Finland
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103
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Daws SC, Cline LA, Rotenberry J, Sadowsky MJ, Staley C, Dalzell B, Kennedy PG. Do shared traits create the same fates? Examining the link between morphological type and the biogeography of fungal and bacterial communities. FUNGAL ECOL 2020. [DOI: 10.1016/j.funeco.2020.100948] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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104
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Leboucher T, Tison‐Rosebery J, Budnick WR, Jamoneau A, Vyverman W, Soininen J, Boutry S, Passy SI. A metacommunity approach for detecting species influenced by mass effect. J Appl Ecol 2020. [DOI: 10.1111/1365-2664.13701] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
| | | | | | | | - Wim Vyverman
- Biology Department, Protistology and Aquatic Ecology Ghent University Ghent Belgium
| | - Janne Soininen
- Department of Geosciences and Geography University of Helsinki Helsinki Finland
| | | | - Sophia I. Passy
- Department of Biology University of Texas at Arlington Arlington TX USA
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105
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Jones NT, Symons CC, Cavalheri H, Pedroza-Ramos A, Shurin JB. Predators drive community reorganization during experimental range shifts. J Anim Ecol 2020; 89:2378-2388. [PMID: 32592594 DOI: 10.1111/1365-2656.13289] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 05/23/2020] [Indexed: 11/30/2022]
Abstract
Increased global temperatures caused by climate change are causing species to shift their ranges and colonize new sites, creating novel assemblages that have historically not interacted. Species interactions play a central role in the response of ecosystems to climate change, but the role of trophic interactions in facilitating or preventing range expansions is largely unknown. The goal of our study was to understand how predators influence the ability of range-shifting prey to successfully establish in newly available habitat following climate warming. We hypothesized that fish predation facilitates the establishment of colonizing zooplankton populations, because fish preferentially consume larger species that would otherwise competitively exclude smaller-bodied colonists. We conducted a mesocosm experiment with zooplankton communities and their fish predators from lakes of the Sierra Nevada Mountains in California, USA. We tested the effect of fish predation on the establishment and persistence of a zooplankton community when introduced in the presence of higher- and lower-elevation communities at two experimental temperatures in field mesocosms. We found that predators reduce the abundance of larger-bodied residents from the alpine and facilitate the establishment of new lower-elevation species. In addition, fish predation and warming independently reduced the average body size of zooplankton by up to 30%. This reduction in body size offset the direct effect of warming-induced increases in population growth rates, leading to no net change in zooplankton biomass or trophic cascade strength. We found support for a shift to smaller species with climate change through two mechanisms: (a) the direct effects of warming on developmental rates and (b) size-selective predation that altered the identity of species' that could colonize new higher elevation habitat. Our results suggest that predators can amplify the rate of range shifts by consuming larger-bodied residents and facilitating the establishment of new species. However, the effects of climate warming were dampened by reducing the average body size of community members, leading to no net change in ecosystem function, despite higher growth rates. This work suggests that trophic interactions play a role in the reorganization of regional communities under climate warming.
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Affiliation(s)
- Natalie T Jones
- Department of Ecology, Behavior and Evolution, The University of California, San Diego, CA, USA
| | - Celia C Symons
- Department of Ecology, Behavior and Evolution, The University of California, San Diego, CA, USA.,Department of Ecology, Behavior and Evolution, The University of California, Irvine, CA, USA
| | - Hamanda Cavalheri
- Department of Ecology, Behavior and Evolution, The University of California, San Diego, CA, USA
| | - Adriana Pedroza-Ramos
- Unidad de Ecología en Sistemas Acuáticos UDESA, Universidad Pedagógica y Tecnológica de Colombia, Tunja, Colombia
| | - Jonathan B Shurin
- Department of Ecology, Behavior and Evolution, The University of California, San Diego, CA, USA
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106
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Keppeler FW, Montaña CG, Winemiller KO. The relationship between trophic level and body size in fishes depends on functional traits. ECOL MONOGR 2020. [DOI: 10.1002/ecm.1415] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Friedrich W. Keppeler
- Department of Ecology and Conservation Biology Texas A&M University College Station Texas USA
| | - Carmen G. Montaña
- Department of Biology Stephen F. Austin State University Nacogdoches Texas USA
| | - Kirk O. Winemiller
- Department of Ecology and Conservation Biology Texas A&M University College Station Texas USA
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107
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He S, Soininen J, Chen K, Wang B. Environmental Factors Override Dispersal-Related Factors in Shaping Diatom and Macroinvertebrate Communities Within Stream Networks in China. Front Ecol Evol 2020. [DOI: 10.3389/fevo.2020.00141] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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108
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Schlägel UE, Grimm V, Blaum N, Colangeli P, Dammhahn M, Eccard JA, Hausmann SL, Herde A, Hofer H, Joshi J, Kramer-Schadt S, Litwin M, Lozada-Gobilard SD, Müller MEH, Müller T, Nathan R, Petermann JS, Pirhofer-Walzl K, Radchuk V, Rillig MC, Roeleke M, Schäfer M, Scherer C, Schiro G, Scholz C, Teckentrup L, Tiedemann R, Ullmann W, Voigt CC, Weithoff G, Jeltsch F. Movement-mediated community assembly and coexistence. Biol Rev Camb Philos Soc 2020; 95:1073-1096. [PMID: 32627362 DOI: 10.1111/brv.12600] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Revised: 03/20/2020] [Accepted: 03/23/2020] [Indexed: 01/11/2023]
Abstract
Organismal movement is ubiquitous and facilitates important ecological mechanisms that drive community and metacommunity composition and hence biodiversity. In most existing ecological theories and models in biodiversity research, movement is represented simplistically, ignoring the behavioural basis of movement and consequently the variation in behaviour at species and individual levels. However, as human endeavours modify climate and land use, the behavioural processes of organisms in response to these changes, including movement, become critical to understanding the resulting biodiversity loss. Here, we draw together research from different subdisciplines in ecology to understand the impact of individual-level movement processes on community-level patterns in species composition and coexistence. We join the movement ecology framework with the key concepts from metacommunity theory, community assembly and modern coexistence theory using the idea of micro-macro links, where various aspects of emergent movement behaviour scale up to local and regional patterns in species mobility and mobile-link-generated patterns in abiotic and biotic environmental conditions. These in turn influence both individual movement and, at ecological timescales, mechanisms such as dispersal limitation, environmental filtering, and niche partitioning. We conclude by highlighting challenges to and promising future avenues for data generation, data analysis and complementary modelling approaches and provide a brief outlook on how a new behaviour-based view on movement becomes important in understanding the responses of communities under ongoing environmental change.
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Affiliation(s)
- Ulrike E Schlägel
- Plant Ecology and Nature Conservation, University of Potsdam, Am Mühlenberg 3, 14476, Potsdam, Germany.,Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Altensteinstr. 34, 14195, Berlin, Germany
| | - Volker Grimm
- Plant Ecology and Nature Conservation, University of Potsdam, Am Mühlenberg 3, 14476, Potsdam, Germany.,Department of Ecological Modelling, Helmholtz Centre for Environmental Research-UFZ, Permoserstr. 15, 04318, Leipzig, Germany.,German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, 04103, Leipzig, Germany
| | - Niels Blaum
- Plant Ecology and Nature Conservation, University of Potsdam, Am Mühlenberg 3, 14476, Potsdam, Germany.,Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Altensteinstr. 34, 14195, Berlin, Germany
| | - Pierluigi Colangeli
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Altensteinstr. 34, 14195, Berlin, Germany.,Department of Ecology and Ecosystem Modelling, University of Potsdam, Maulbeerallee 2, 14469, Potsdam, Germany
| | - Melanie Dammhahn
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Altensteinstr. 34, 14195, Berlin, Germany.,Animal Ecology, University of Potsdam, Maulbeerallee 1, 14469, Potsdam, Germany
| | - Jana A Eccard
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Altensteinstr. 34, 14195, Berlin, Germany.,Animal Ecology, University of Potsdam, Maulbeerallee 1, 14469, Potsdam, Germany
| | - Sebastian L Hausmann
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Altensteinstr. 34, 14195, Berlin, Germany.,Plant Ecology, Institute of Biology, Freie Universität Berlin, 14195, Berlin, Germany
| | - Antje Herde
- Plant Ecology and Nature Conservation, University of Potsdam, Am Mühlenberg 3, 14476, Potsdam, Germany.,Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Altensteinstr. 34, 14195, Berlin, Germany.,Department of Animal Behaviour, Bielefeld University, Morgenbreede 45, 33615, Bielefeld, Germany
| | - Heribert Hofer
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Altensteinstr. 34, 14195, Berlin, Germany.,Leibniz Institute for Zoo and Wildlife Research, Alfred-Kowalke-Str. 17, 10315, Berlin, Germany.,Department of Veterinary Medicine, Freie Universität Berlin, Berlin, Germany.,Department of Biology, Chemistry, Pharmacy, Freie Universität Berlin, Berlin, Germany
| | - Jasmin Joshi
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Altensteinstr. 34, 14195, Berlin, Germany.,Biodiversity Research and Systematic Botany, University of Potsdam, Maulbeerallee 2, 14469, Potsdam, Germany.,Institute for Landscape and Open Space, Hochschule für Technik HSR Rapperswil, Seestrasse 10, 8640 Rapperswil, Switzerland
| | - Stephanie Kramer-Schadt
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Altensteinstr. 34, 14195, Berlin, Germany.,Leibniz Institute for Zoo and Wildlife Research, Alfred-Kowalke-Str. 17, 10315, Berlin, Germany.,Department of Ecology, Technische Universität Berlin, Rothenburgstr. 12, 12165, Berlin, Germany
| | - Magdalena Litwin
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Altensteinstr. 34, 14195, Berlin, Germany.,Evolutionary Biology/Systematic Zoology, University of Potsdam, Karl-Liebknecht-Str. 24-25, 14476, Potsdam, Germany
| | - Sissi D Lozada-Gobilard
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Altensteinstr. 34, 14195, Berlin, Germany.,Biodiversity Research and Systematic Botany, University of Potsdam, Maulbeerallee 2, 14469, Potsdam, Germany
| | - Marina E H Müller
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Altensteinstr. 34, 14195, Berlin, Germany.,Leibniz-Centre for Agricultural Landscape Research (ZALF), Eberswalder Str. 84, 15374, Müncheberg, Germany
| | - Thomas Müller
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Altensteinstr. 34, 14195, Berlin, Germany.,Leibniz-Centre for Agricultural Landscape Research (ZALF), Eberswalder Str. 84, 15374, Müncheberg, Germany
| | - Ran Nathan
- Department of Ecology, Evolution and Behavior, Movement Ecology Laboratory, Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Jana S Petermann
- Department of Biosciences, University of Salzburg, Hellbrunner Straße 34, 5020, Salzburg, Austria
| | - Karin Pirhofer-Walzl
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Altensteinstr. 34, 14195, Berlin, Germany.,Plant Ecology, Institute of Biology, Freie Universität Berlin, 14195, Berlin, Germany.,Leibniz-Centre for Agricultural Landscape Research (ZALF), Eberswalder Str. 84, 15374, Müncheberg, Germany
| | - Viktoriia Radchuk
- Leibniz Institute for Zoo and Wildlife Research, Alfred-Kowalke-Str. 17, 10315, Berlin, Germany
| | - Matthias C Rillig
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Altensteinstr. 34, 14195, Berlin, Germany.,Plant Ecology, Institute of Biology, Freie Universität Berlin, 14195, Berlin, Germany
| | - Manuel Roeleke
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Altensteinstr. 34, 14195, Berlin, Germany.,Leibniz Institute for Zoo and Wildlife Research, Alfred-Kowalke-Str. 17, 10315, Berlin, Germany
| | - Merlin Schäfer
- Plant Ecology and Nature Conservation, University of Potsdam, Am Mühlenberg 3, 14476, Potsdam, Germany.,Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Altensteinstr. 34, 14195, Berlin, Germany.,Leibniz-Centre for Agricultural Landscape Research (ZALF), Eberswalder Str. 84, 15374, Müncheberg, Germany
| | - Cédric Scherer
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Altensteinstr. 34, 14195, Berlin, Germany.,Leibniz Institute for Zoo and Wildlife Research, Alfred-Kowalke-Str. 17, 10315, Berlin, Germany
| | - Gabriele Schiro
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Altensteinstr. 34, 14195, Berlin, Germany.,Leibniz-Centre for Agricultural Landscape Research (ZALF), Eberswalder Str. 84, 15374, Müncheberg, Germany
| | - Carolin Scholz
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Altensteinstr. 34, 14195, Berlin, Germany.,Leibniz Institute for Zoo and Wildlife Research, Alfred-Kowalke-Str. 17, 10315, Berlin, Germany
| | - Lisa Teckentrup
- Plant Ecology and Nature Conservation, University of Potsdam, Am Mühlenberg 3, 14476, Potsdam, Germany.,Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Altensteinstr. 34, 14195, Berlin, Germany
| | - Ralph Tiedemann
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Altensteinstr. 34, 14195, Berlin, Germany.,Evolutionary Biology/Systematic Zoology, University of Potsdam, Karl-Liebknecht-Str. 24-25, 14476, Potsdam, Germany
| | - Wiebke Ullmann
- Plant Ecology and Nature Conservation, University of Potsdam, Am Mühlenberg 3, 14476, Potsdam, Germany.,Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Altensteinstr. 34, 14195, Berlin, Germany.,Leibniz-Centre for Agricultural Landscape Research (ZALF), Eberswalder Str. 84, 15374, Müncheberg, Germany
| | - Christian C Voigt
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Altensteinstr. 34, 14195, Berlin, Germany.,Leibniz Institute for Zoo and Wildlife Research, Alfred-Kowalke-Str. 17, 10315, Berlin, Germany.,Behavioral Biology, Institute of Biology, Freie Universität Berlin, Takustr. 6, 14195, Berlin, Germany
| | - Guntram Weithoff
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Altensteinstr. 34, 14195, Berlin, Germany.,Department of Ecology and Ecosystem Modelling, University of Potsdam, Maulbeerallee 2, 14469, Potsdam, Germany
| | - Florian Jeltsch
- Plant Ecology and Nature Conservation, University of Potsdam, Am Mühlenberg 3, 14476, Potsdam, Germany.,Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Altensteinstr. 34, 14195, Berlin, Germany
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109
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Logares R, Deutschmann IM, Junger PC, Giner CR, Krabberød AK, Schmidt TSB, Rubinat-Ripoll L, Mestre M, Salazar G, Ruiz-González C, Sebastián M, de Vargas C, Acinas SG, Duarte CM, Gasol JM, Massana R. Disentangling the mechanisms shaping the surface ocean microbiota. MICROBIOME 2020; 8:55. [PMID: 32312331 PMCID: PMC7171866 DOI: 10.1186/s40168-020-00827-8] [Citation(s) in RCA: 107] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Accepted: 03/13/2020] [Indexed: 05/19/2023]
Abstract
BACKGROUND The ocean microbiota modulates global biogeochemical cycles and changes in its configuration may have large-scale consequences. Yet, the underlying ecological mechanisms structuring it are unclear. Here, we investigate how fundamental ecological mechanisms (selection, dispersal and ecological drift) shape the smallest members of the tropical and subtropical surface-ocean microbiota: prokaryotes and minute eukaryotes (picoeukaryotes). Furthermore, we investigate the agents exerting abiotic selection on this assemblage as well as the spatial patterns emerging from the action of ecological mechanisms. To explore this, we analysed the composition of surface-ocean prokaryotic and picoeukaryotic communities using DNA-sequence data (16S- and 18S-rRNA genes) collected during the circumglobal expeditions Malaspina-2010 and TARA-Oceans. RESULTS We found that the two main components of the tropical and subtropical surface-ocean microbiota, prokaryotes and picoeukaryotes, appear to be structured by different ecological mechanisms. Picoeukaryotic communities were predominantly structured by dispersal-limitation, while prokaryotic counterparts appeared to be shaped by the combined action of dispersal-limitation, selection and drift. Temperature-driven selection appeared as a major factor, out of a few selected factors, influencing species co-occurrence networks in prokaryotes but not in picoeukaryotes, indicating that association patterns may contribute to understand ocean microbiota structure and response to selection. Other measured abiotic variables seemed to have limited selective effects on community structure in the tropical and subtropical ocean. Picoeukaryotes displayed a higher spatial differentiation between communities and a higher distance decay when compared to prokaryotes, consistent with a scenario of higher dispersal limitation in the former after considering environmental heterogeneity. Lastly, random dynamics or drift seemed to have a more important role in structuring prokaryotic communities than picoeukaryotic counterparts. CONCLUSIONS The differential action of ecological mechanisms seems to cause contrasting biogeography, in the tropical and subtropical ocean, among the smallest surface plankton, prokaryotes and picoeukaryotes. This suggests that the idiosyncrasy of the main constituents of the ocean microbiota should be considered in order to understand its current and future configuration, which is especially relevant in a context of global change, where the reaction of surface ocean plankton to temperature increase is still unclear. Video Abstract.
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Affiliation(s)
- Ramiro Logares
- Institute of Marine Sciences (ICM), CSIC, 08003 Barcelona, Catalonia Spain
- Department of Biosciences, Section for Genetics and Evolutionary Biology, University of Oslo, 0316 Oslo, Norway
| | - Ina M. Deutschmann
- Institute of Marine Sciences (ICM), CSIC, 08003 Barcelona, Catalonia Spain
| | - Pedro C. Junger
- Laboratory of Microbial Processes & Biodiversity (LMPB), Department of Hydrobiology (DHB), Universidade Federal de São Carlos (UFSCar), São Carlos, 13565-905 SP Brazil
| | - Caterina R. Giner
- Institute of Marine Sciences (ICM), CSIC, 08003 Barcelona, Catalonia Spain
- Institute for the Oceans and Fisheries, University of British Columbia, 2202 Main Mall, Vancouver, BC V6T 1Z4 Canada
| | - Anders K. Krabberød
- Department of Biosciences, Section for Genetics and Evolutionary Biology, University of Oslo, 0316 Oslo, Norway
| | - Thomas S. B. Schmidt
- European Molecular Biology Laboratory, Meyerhofstr. 1, 69117 Heidelberg, Germany
| | - Laura Rubinat-Ripoll
- Sorbonne Universités, UPMC Univ Paris 06, CNRS UMR 7144, Adaptation et Diversité en Milieu Marin, Equipe EPEP, Station Biologique de Roscoff, 29680 Roscoff, France
| | - Mireia Mestre
- Institute of Marine Sciences (ICM), CSIC, 08003 Barcelona, Catalonia Spain
- Centro de Investigación Oceanográfica COPAS Sur-Austral, Departamento de Oceanografía, Universidad de Concepción, Concepción, Chile
- Centro FONDAP de Investigación Dinámica de Ecosistemas Marinos de Altas Latitudes (IDEAL), Universidad Austral de Chile, Valdivia, Chile
| | - Guillem Salazar
- Institute of Marine Sciences (ICM), CSIC, 08003 Barcelona, Catalonia Spain
- Department of Biology, Institute of Microbiology and Swiss Institute of Bioinformatics, ETH Zürich, 8093 Zürich, Switzerland
| | | | - Marta Sebastián
- Institute of Marine Sciences (ICM), CSIC, 08003 Barcelona, Catalonia Spain
- Oceanography and Global Change Institute, IOCAG, University of Las Palmas de Gran Canaria, ULPGC, 35214 Gran Canaria, Spain
| | - Colomban de Vargas
- Sorbonne Universités, UPMC Univ Paris 06, CNRS UMR 7144, Adaptation et Diversité en Milieu Marin, Equipe EPEP, Station Biologique de Roscoff, 29680 Roscoff, France
| | - Silvia G. Acinas
- Institute of Marine Sciences (ICM), CSIC, 08003 Barcelona, Catalonia Spain
| | - Carlos M. Duarte
- King Abdullah University of Science and Technology (KAUST), Red Sea Research Center (RSRC), Thuwal, Saudi Arabia
| | - Josep M. Gasol
- Institute of Marine Sciences (ICM), CSIC, 08003 Barcelona, Catalonia Spain
- Centre for Marine Ecosystems Research, School of Science, Edith Cowan University, Joondalup, WA Australia
| | - Ramon Massana
- Institute of Marine Sciences (ICM), CSIC, 08003 Barcelona, Catalonia Spain
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110
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Gomes LF, Barbosa JC, de Oliveira Barbosa H, Vieira MC, Vieira LCG. Environmental and spatial influences on stream zooplankton communities of the Brazilian Cerrado. COMMUNITY ECOL 2020. [DOI: 10.1007/s42974-020-00008-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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111
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DE OLIVEIRA SODRÉ ELDER, LANGLAIS-BOURASSA ALEXANDRE, POLLARD AMINAI, BEISNER BEATRIXE. Functional and taxonomic biogeography of phytoplankton and zooplankton communities in relation to environmental variation across the contiguous USA. JOURNAL OF PLANKTON RESEARCH 2020; 42:10.1093/plankt/fbaa002. [PMID: 34366500 PMCID: PMC8340606 DOI: 10.1093/plankt/fbaa002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
For biomonitoring of aquatic ecosystems, the use of coarse group classifications, either taxonomic or functional, has been proposed as an alternative to more highly resolved taxonomic identification. We tested this proposition for phytoplankton and zooplankton using a pan-United States dataset, which also allows us to investigate biogeographic relationships between plankton groups and environmental variables. We used data from 1010 lakes composing the 2012 US National Lakes Assessment and compared relationships derived using genus-level, more aggregated taxonomic resolution and functional types. We examined responses nationally and by ecoregion. Differences in plankton assemblages among ecoregions were detected, especially at genus-level classification. Our analyses show a gradient of altitude and temperature influencing both phytoplankton and zooplankton, and another gradient of nutrients and anthropogenic activity influencing mostly phytoplankton. The overall variation in the planktonic communities explained by environmental variables ranged from 4 to 22%, but together indicated that aggregated taxonomic classification performed better for phytoplankton; for zooplankton, the performance of different classification types depended on the ecoregion. Our analyses also revealed linkages between particular phytoplankton and zooplankton groups, mainly attributable to similar environmental responses and trophic interactions. Overall, the results support the applicability of coarse classifications to infer general responses of plankton communities to environmental drivers.
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Affiliation(s)
- ELDER DE OLIVEIRA SODRÉ
- DEPARTMENT OF BIOLOGICAL SCIENCES AND GROUPE DE RECHERCHE UNIVERSITAIRE EN LIMNOLOGIE ET EN ENVIRONNEMENT AQUATIQUE (GRIL), UNIVERSITY OF QUÉBEC AT MONTRÉAL, C.P. 8888, SUCC. CENTRE-VILLE, MONTRÉAL, QC H3C 3P8, CANADA
- DEPARTAMENTO DE ECOLOGIA, UNIVERSIDADE FEDERAL DO RIO DE JANEIRO, CCS, IB, CAIXA POSTAL 68020, CEP 21941-970, RIO DE JANEIRO, BRASIL
| | - ALEXANDRE LANGLAIS-BOURASSA
- DEPARTMENT OF BIOLOGICAL SCIENCES AND GROUPE DE RECHERCHE UNIVERSITAIRE EN LIMNOLOGIE ET EN ENVIRONNEMENT AQUATIQUE (GRIL), UNIVERSITY OF QUÉBEC AT MONTRÉAL, C.P. 8888, SUCC. CENTRE-VILLE, MONTRÉAL, QC H3C 3P8, CANADA
| | - AMINA I. POLLARD
- UNITED STATES ENVIRONMENTAL PROTECTION AGENCY, OFFICE OF WATER, WASHINGTON, D.C. 20004 USA
| | - BEATRIX E. BEISNER
- DEPARTMENT OF BIOLOGICAL SCIENCES AND GROUPE DE RECHERCHE UNIVERSITAIRE EN LIMNOLOGIE ET EN ENVIRONNEMENT AQUATIQUE (GRIL), UNIVERSITY OF QUÉBEC AT MONTRÉAL, C.P. 8888, SUCC. CENTRE-VILLE, MONTRÉAL, QC H3C 3P8, CANADA
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112
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Skalski T, Kędzior R, Radecki-Pawlik A. Riparian ground beetles in gravel bed rivers: validation of Invertebrate Bankfull Assessment method. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 707:135572. [PMID: 31784159 DOI: 10.1016/j.scitotenv.2019.135572] [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: 09/02/2019] [Revised: 10/22/2019] [Accepted: 11/15/2019] [Indexed: 06/10/2023]
Abstract
Bankfull Assessment Method (IBA method) applies riverine invertebrate community of ground beetles as a biotic indicator of bankfull variation in a dynamic river. IBA index is calculated as a proportion of small sized individuals (1-6 mm) to large size individuals (18-24 mm) of ground beetles in given sample site. The aim of the study was to validate the IBA bankfull discharge method with 135 carabid assemblages collected in gravel-bed rivers of various modifications of channel morphology in the Polish Carpathians. Constrained canonical correspondence analysis revealed that biotic factors such as IBA, plant cover and plant height described most of the variation of small and large sized species abundance. The IBA index variation confirmed earlier expectation of the mean IBA values. Mean value of the index for the lowest bench is about 5, for the middle bench about 2 and it never exceeds 1 for the highest bench. The bankfull calculated using morphometric methods (Wolmann) was located between the first and second bench on each river. Values of the IBA for the lowest bench depend significantly on channel incision whereas modifications of vegetation affect the values for all three benches. The study presents high value of IBA method in estimating bankfull discharge which is considered to be important supporting flow predicting morphological changes responsible for river channel shape with direct connection to living organisms occupying river banks as well as to river environmental quality. Proposed simple method could be important for local watershed managers for prediction of bank embankments level (e.g. maximum level of rip-rap or gabions) or for maximum level of low head hydraulic structures when they are necessary in terms of river engineering works but when they are still built as environmental friendly hydraulic structures.
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Affiliation(s)
- Tomasz Skalski
- Biotechnology Centre, Silesian University of Technology, Gliwice, Poland.
| | - Renata Kędzior
- Faculty of Environmental Engineering and Land Surveying, Agricultural University of Krakow, Poland
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113
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Rodríguez-Alcalá O, Blanco S, García-Girón J, Jeppesen E, Irvine K, Nõges P, Nõges T, Gross EM, Bécares E. Large-scale geographical and environmental drivers of shallow lake diatom metacommunities across Europe. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 707:135887. [PMID: 31862432 DOI: 10.1016/j.scitotenv.2019.135887] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 11/29/2019] [Accepted: 11/30/2019] [Indexed: 06/10/2023]
Abstract
Disentangling the relative role of species sorting and dispersal limitation in biological communities has become one of the main issues for community ecologists and biogeographers. In this study, we analysed a data set of epiphytic diatoms comprising 34 lakes from six European countries. This data set covers a relatively large latitudinal gradient to elucidate which processes are affecting the distribution of diatom communities on a broad spatial extent. Our results show strong environmental effects on the composition of the diatom communities, while the spatial factor effects were weak, emphasising that compositional variation was mainly due to species turnover. Our data support information from the literature that local abiotic factors are the main predictors controlling the compositional variation of diatom assemblages in European shallow lakes. More specifically, changes in species composition were driven mainly by nutrient content in Northern Europe, whereas lakes located in Southern Europe were more affected by conductivity and lake depth. Our results solve pending questions in the spatial ecology of diatoms by proving that species turnover is stronger than nestedness at any spatial scale, and give support to the use of epiphytic diatoms as biological indicators for shallow lakes.
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Affiliation(s)
- Omar Rodríguez-Alcalá
- Group for Limnology and Environmental Biotechnology, Department of Biodiversity and Environmental Management, Faculty of Biology and Environmental Sciences, University of Leon, 24071 Leon, Spain.
| | - Saúl Blanco
- Group for Limnology and Environmental Biotechnology, Department of Biodiversity and Environmental Management, Faculty of Biology and Environmental Sciences, University of Leon, 24071 Leon, Spain
| | - Jorge García-Girón
- Group for Limnology and Environmental Biotechnology, Department of Biodiversity and Environmental Management, Faculty of Biology and Environmental Sciences, University of Leon, 24071 Leon, Spain
| | - Erik Jeppesen
- Department of Freshwater Ecology, National Environmental Research Institute, Vejlsøvej 25, DK-8600 Silkeborg, Denmark
| | - Ken Irvine
- UNESCO-IHE, Department of Water Science and Engineering, Westvest 7, 2611 AX Delft, PO Box 3015, 2601 Delft, the Netherlands
| | - Peeter Nõges
- Chair of Hydrobiology and Fishery, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 5, 51006 Tartu, Estonia
| | - Tiina Nõges
- Chair of Hydrobiology and Fishery, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 5, 51006 Tartu, Estonia
| | - Elisabeth M Gross
- Université de Lorraine, LIEC UMR 7360 CNRS, Rue Général Delestraint, Bâtiment IBISE, 57070 Metz, Lorraine, France
| | - Eloy Bécares
- Group for Limnology and Environmental Biotechnology, Department of Biodiversity and Environmental Management, Faculty of Biology and Environmental Sciences, University of Leon, 24071 Leon, Spain
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114
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He S, Soininen J, Deng G, Wang B. Metacommunity Structure of Stream Insects across Three Hierarchical Spatial scales. Ecol Evol 2020; 10:2874-2884. [PMID: 32211162 PMCID: PMC7083666 DOI: 10.1002/ece3.6103] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 01/21/2020] [Accepted: 01/24/2020] [Indexed: 11/08/2022] Open
Abstract
A major challenge in community ecology is to understand the underlying factors driving metacommunity (i.e., a set of local communities connected through species dispersal) dynamics. However, little is known about the effects of varying spatial scale on the relative importance of environmental and spatial (i.e., dispersal related) factors in shaping metacommunities and on the relevance of different dispersal pathways. Using a hierarchy of insect metacommunities at three spatial scales (a small, within-stream scale, intermediate, among-stream scale, and large, among-sub-basin scale), we assessed whether the relative importance of environmental and spatial factors shaping metacommunity structure varies predictably across spatial scales, and tested how the importance of different dispersal routes vary across spatial scales. We also studied if different dispersal ability groups differ in the balance between environmental and spatial control. Variation partitioning showed that environmental factors relative to spatial factors were more important for community composition at the within-stream scale. In contrast, spatial factors (i.e., eigenvectors from Moran's eigenvector maps) relative to environmental factors were more important at the among-sub-basin scale. These results indicate that environmental filtering is likely to be more important at the smallest scale with highest connectivity, while dispersal limitation seems to be more important at the largest scale with lowest connectivity. Community variation at the among-stream and among-sub-basin scales were strongly explained by geographical and topographical distances, indicating that overland pathways might be the main dispersal route at the larger scales among more isolated sites. The relative effect of environmental and spatial factors on insect communities varied between low and high dispersal ability groups; this variation was inconsistent among three hierarchical scales. In sum, our study indicates that spatial scale, connectivity, and dispersal ability jointly shape stream metacommunities.
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Affiliation(s)
- Siwen He
- Department of Entomology Nanjing Agricultural University Nanjing China
- Department of Geosciences and Geography University of Helsinki Helsinki Finland
| | - Janne Soininen
- Department of Geosciences and Geography University of Helsinki Helsinki Finland
| | - Guiping Deng
- Jiuzhaigou Administrative Bureau Jiuzhaigou County China
| | - Beixin Wang
- Department of Entomology Nanjing Agricultural University Nanjing China
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115
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Cunha EJ, Juen L. Environmental drivers of the metacommunity structure of insects on the surface of tropical streams of the Amazon. AUSTRAL ECOL 2020. [DOI: 10.1111/aec.12873] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Erlane José Cunha
- Programa de Pós-Graduação em Zoologia; Museu Paraense Emílio Goeldi/Universidade Federal do Pará; Belém 66075-110 Brazil
| | - Leandro Juen
- Laboratório de Ecologia e Conservação; Instituto de Ciências Biológicas; Universidade Federal do Pará; Belém Brazil
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116
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Greyson-Gaito CJ, Bartley TJ, Cottenie K, Jarvis WMC, Newman AEM, Stothart MR. Into the wild: microbiome transplant studies need broader ecological reality. Proc Biol Sci 2020; 287:20192834. [PMID: 32097591 PMCID: PMC7062022 DOI: 10.1098/rspb.2019.2834] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 02/03/2020] [Indexed: 01/04/2023] Open
Abstract
Gut microbial communities (microbiomes) profoundly shape the ecology and evolution of multicellular life. Interactions between host and microbiome appear to be reciprocal, and ecological theory is now being applied to better understand how hosts and their microbiome influence each other. However, some ecological processes that underlie reciprocal host-microbiome interactions may be obscured by the current convention of highly controlled transplantation experiments. Although these approaches have yielded invaluable insights, there is a need for a broader array of approaches to fully understand host-microbiome reciprocity. Using a directed review, we surveyed the breadth of ecological reality in the current literature on gut microbiome transplants with non-human recipients. For 55 studies, we categorized nine key experimental conditions that impact the ecological reality (EcoReality) of the transplant, including host taxon match and donor environment. Using these categories, we rated the EcoReality of each transplant. Encouragingly, the breadth of EcoReality has increased over time, but some components of EcoReality are still relatively unexplored, including recipient host environment and microbiome state. The conceptual framework we develop here maps the landscape of possible EcoReality to highlight where fundamental ecological processes can be considered in future transplant experiments.
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Affiliation(s)
| | - Timothy J. Bartley
- Department of Integrative Biology, University of Guelph, Guelph, Ontario, Canada
- University of Toronto Mississauga, Mississauga, Ontario, Canada
| | - Karl Cottenie
- Department of Integrative Biology, University of Guelph, Guelph, Ontario, Canada
| | - Will M. C. Jarvis
- Department of Biology, University of Ottawa, Ottawa, Ontario, Canada
| | - Amy E. M. Newman
- Department of Integrative Biology, University of Guelph, Guelph, Ontario, Canada
| | - Mason R. Stothart
- Department of Ecosystem and Public Health, University of Calgary, Calgary, Alberta, Canada
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117
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Petermann JS, Roberts AL, Hemmerling C, Bajerski F, Pascual J, Overmann J, Weisser WW, Ruess L, Gossner MM. Direct and indirect effects of forest management on tree-hole inhabiting aquatic organisms and their functional traits. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 704:135418. [PMID: 31896218 DOI: 10.1016/j.scitotenv.2019.135418] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 11/04/2019] [Accepted: 11/05/2019] [Indexed: 06/10/2023]
Abstract
Ecological communities in forests have been shown to be strongly affected by forest management but a detailed understanding of how different components of management affect insect communities directly and indirectly via environmental variables, how management influences functional trait diversity and composition, and whether these results can be transferred to other functional groups besides insects (e.g. bacteria or nematodes) is still missing. To address these questions we used water-filled tree holes, which provide habitats for insect larvae and other aquatic organisms in forests, as a model system. We mapped all water-filled tree holes in 75 forest plots (1 ha) under different management intensity in three regions of Germany. We measured structural and climatic conditions at different spatial scales, sampled insect communities in 123 tree holes and bacterial and nematode communities in a subset of these. We found that forest management in terms of harvesting intensity and the proportion of non-natural tree species (species not part of the natural vegetation at the sites) negatively affected tree-hole abundance. An increased proportion of non-natural tree species had a positive direct effect on insect richness and functional diversity in the tree holes. However, a structural equation model showed that increasing management intensity had negative indirect effects on insect abundance and richness, operating via environmental variables at stand and tree-hole scale. Functional diversity and trait composition of insect communities similarly responded to changes in management-related variables. In contrast to insects, bacterial and nematode richness were not directly impacted by forest management but by other environmental variables. Our results suggest that forest management may strongly alter insect communities of tree holes, while nematodes and bacteria seem less affected. Most effects in our study were indirect and negative, indicating that management has often complex consequences for forest communities that should be taken into account in forest management schemes.
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Affiliation(s)
- Jana S Petermann
- Department of Biosciences, University of Salzburg, Hellbrunnerstrasse 34, A-5020 Salzburg, Austria.
| | - Anastasia L Roberts
- Department of Biosciences, University of Salzburg, Hellbrunnerstrasse 34, A-5020 Salzburg, Austria
| | - Christin Hemmerling
- Humboldt-Universität zu Berlin, Institute of Biology, Ecology Group, Philippstraße 13, 10115 Berlin, Germany
| | - Felizitas Bajerski
- Leibniz-Institut Deutsche Sammlung von Mikroorganismen und Zellkulturen, Inhoffenstrasse 7B, D-38124 Braunschweig, Germany
| | - Javier Pascual
- Leibniz-Institut Deutsche Sammlung von Mikroorganismen und Zellkulturen, Inhoffenstrasse 7B, D-38124 Braunschweig, Germany
| | - Jörg Overmann
- Leibniz-Institut Deutsche Sammlung von Mikroorganismen und Zellkulturen, Inhoffenstrasse 7B, D-38124 Braunschweig, Germany; Microbiology, Braunschweig University of Technology, Braunschweig, Germany
| | - Wolfgang W Weisser
- Technical University of Munich, Hans-von-Carlowitz-Platz 2, D-85354 Freising, Germany
| | - Liliane Ruess
- Humboldt-Universität zu Berlin, Institute of Biology, Ecology Group, Philippstraße 13, 10115 Berlin, Germany
| | - Martin M Gossner
- Forest Entomology, Swiss Federal Research Institute WSL, Zürcherstrasse 111, CH-8903 Birmensdorf, Switzerland
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118
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Vass M, Székely AJ, Lindström ES, Langenheder S. Using null models to compare bacterial and microeukaryotic metacommunity assembly under shifting environmental conditions. Sci Rep 2020; 10:2455. [PMID: 32051469 PMCID: PMC7016149 DOI: 10.1038/s41598-020-59182-1] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 01/22/2020] [Indexed: 11/22/2022] Open
Abstract
Temporal variations in microbial metacommunity structure and assembly processes in response to shifts in environmental conditions are poorly understood. Hence, we conducted a temporal field study by sampling rock pools in four-day intervals during a 5-week period that included strong changes in environmental conditions due to intensive rain. We characterized bacterial and microeukaryote communities by 16S and 18S rRNA gene sequencing, respectively. Using a suite of null model approaches (elements of metacommunity structure, Raup-Crick beta-diversity and quantitative process estimates) to assess dynamics in community assembly, we found that strong changes in environmental conditions induced small but significant temporal changes in assembly processes and triggered different responses in bacterial and microeukaryotic metacommunities, promoting distinct selection processes. Incidence-based approaches showed that the assemblies of both communities were mainly governed by stochastic processes. In contrast, abundance-based methods indicated the dominance of historical contingency and unmeasured factors in the case of bacteria and microeukaryotes, respectively. We distinguished these processes from dispersal-related processes using additional tests. Regardless of the applied null model, our study highlights that community assembly processes are not static, and the relative importance of different assembly processes can vary under different conditions and between different microbial groups.
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Affiliation(s)
- Máté Vass
- Department of Ecology and Genetics/Limnology, Uppsala University, Uppsala, Sweden.
| | - Anna J Székely
- Department of Ecology and Genetics/Limnology, Uppsala University, Uppsala, Sweden
| | - Eva S Lindström
- Department of Ecology and Genetics/Limnology, Uppsala University, Uppsala, Sweden
| | - Silke Langenheder
- Department of Ecology and Genetics/Limnology, Uppsala University, Uppsala, Sweden
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119
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Hamilton AT, Schäfer RB, Pyne MI, Chessman B, Kakouie K, Boersma KS, Verdonschot PF, Verdonschot RC, Mims M, Khamis K, Bierwagen B, Stamp J. Limitations of trait-based approaches for stressor assessment: The case of freshwater invertebrates and climate drivers. GLOBAL CHANGE BIOLOGY 2020; 26:364-379. [PMID: 31553112 PMCID: PMC10839858 DOI: 10.1111/gcb.14846] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Revised: 08/29/2019] [Accepted: 09/09/2019] [Indexed: 06/10/2023]
Abstract
The appeal of trait-based approaches for assessing environmental vulnerabilities arises from the potential insight they provide into the mechanisms underlying the changes in populations and community structure. Traits can provide ecologically based explanations for observed responses to environmental changes, along with predictive power gained by developing relationships between traits and environmental variables. Despite these potential benefits, questions remain regarding the utility and limitations of these approaches, which we explore focusing on the following questions: (a) How reliable are predictions of biotic responses to changing conditions based on single trait-environment relationships? (b) What factors constrain detection of single trait-environment relationships, and how can they be addressed? (c) Can we use information on meta-community processes to reveal conditions when assumptions underlying trait-based studies are not met? We address these questions by reviewing published literature on aquatic invertebrate communities from stream ecosystems. Our findings help to define factors that influence the successful application of trait-based approaches in addressing the complex, multifaceted effects of changing climate conditions on hydrologic and thermal regimes in stream ecosystems. Key conclusions are that observed relationships between traits and environmental stressors are often inconsistent with predefined hypotheses derived from current trait-based thinking, particularly related to single trait-environment relationships. Factors that can influence findings of trait-based assessments include intercorrelations of among traits and among environmental variables, spatial scale, strength of biotic interactions, intensity of habitat disturbance, degree of abiotic stress, and methods of trait characterization. Several recommendations are made for practice and further study to address these concerns, including using phylogenetic relatedness to address intercorrelation. With proper consideration of these issues, trait-based assessment of organismal vulnerability to environmental changes can become a useful tool to conserve threatened populations into the future.
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Affiliation(s)
| | - Ralf B. Schäfer
- iES Landau, Institute for Environmental Sciences, University Koblenz-Landau Fortstrasse 7 76829 Landau, Germany
| | | | - Bruce Chessman
- Centre for Ecosystem Science, School of Biological, Earth and Environmental Sciences, UNSW Sydney, NSW, Australia
| | - Karan Kakouie
- Department of Ecosystem Research, Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany
| | - Kate S. Boersma
- Department of Biology, University of San Diego, San Diego, CA, USA
| | - Piet F.M. Verdonschot
- Wageningen Environmental Research, Wageningen University and Research, Wageningen, The Netherlands
- Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands
| | - Ralf C.M. Verdonschot
- Wageningen Environmental Research, Wageningen University and Research, Wageningen, The Netherlands
| | - Meryl Mims
- Department of Biological Sciences, Virginia Tech, Blacksburg, VA, USA
| | - Kieran Khamis
- School of Geography, Earth and Environmental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Britta Bierwagen
- U.S. Environmental Protection Agency, Office of Research and Development, National Center for Environmental Assessment, Washington, DC, USA
| | - Jen Stamp
- Tetra Tech Center for Ecological Sciences, Montpelier, VT, USA
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120
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Abstract
Fungi underpin almost all terrestrial ecosystem functions, yet our understanding of their community ecology lags far behind that of other organisms. Here, red paddy soils in subtropical China were collected across a soil depth profile, comprising 0-to-10-cm- (0-10cm-), 10-20cm-, and 20-40cm-deep layers. Using Illumina MiSeq amplicon sequencing of the internal transcribed spacer (ITS) region, distance-decay relationships (DDRs), and ecological models, fungal assemblages and their spatial patterns were investigated from each soil depth. We observed significant spatial variation in fungal communities and found that environmental heterogeneity decreased with soil depth, while spatial variation in fungal communities showed the opposite trend. DDRs occurred only in 0-10cm- and 10-20cm-deep soil layers, not in the 20-40cm layer. Our analyses revealed that the fungal community assembly in the 0-10cm layer was primarily governed by environmental filtering and a high dispersal rate, while in the deeper layer (20-40cm), it was primarily governed by dispersal limitation with minimal environmental filtering. Both environmental filtering and dispersal limitation controlled fungal community assembly in the 10-20cm layer, with dispersal limitation playing the major role. Results demonstrate the decreasing importance of environmental filtering and an increase in the importance of dispersal limitation in structuring fungal communities from shallower to deeper soils. Effectively, "everything is everywhere, but the environment selects," although only in shallower soils that are easily accessible to dispersive fungal propagules. This work highlights that perceived drivers of fungal community assembly are dependent on sampling depth, suggesting that caution is required when interpreting diversity patterns from samples that integrate across depths.IMPORTANCE In this work, Illumina MiSeq amplicon sequencing of the ITS region was used to investigate the spatial variation and assembly mechanisms of fungal communities from different soil layers across paddy fields in subtropical China, and the results demonstrate the decreasing importance of environmental filtering and an increase in the importance of dispersal limitation in structuring fungal communities from shallower to deeper soils. Therefore, the results of this study highlight that perceived drivers of fungal community assembly are dependent on sampling depth and suggest that caution is required when interpreting diversity patterns from samples that integrate across depths. This is the first study focusing on assemblages of fungal communities in different soil layers on a relatively large scale, and we thus believe that this study is of great importance to researchers and readers in microbial ecology, especially in microbial biogeography, because the results can provide sampling guidance in future studies of microbial biogeography.
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121
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Diez F, Coscarón MDC. Roles of the environment, vegetation and spatial structure in the species composition of the Heteroptera community. SYST BIODIVERS 2020. [DOI: 10.1080/14772000.2020.1737844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Fernando Diez
- Facultad de Ciencias Exactas y Naturales, Universidad Nacional de La Pampa CONICET, Uruguay 151, Santa Rosa, La Pampa, L6300CLB, Argentina
| | - MaríA Del Carmen Coscarón
- Facultad de Ciencias Naturales y Museo, División Entomología, Universidad Nacional de La Plata CONICET, Paseo del Bosque s/n 1900, La Plata, Buenos Aires, Argentina
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122
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López‐Delgado EO, Winemiller KO, Villa‐Navarro FA. Local environmental factors influence beta‐diversity patterns of tropical fish assemblages more than spatial factors. Ecology 2019; 101:e02940. [DOI: 10.1002/ecy.2940] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 09/20/2019] [Accepted: 10/18/2019] [Indexed: 11/11/2022]
Affiliation(s)
- Edwin O. López‐Delgado
- Department of Wildlife and Fisheries Sciences Texas A&M University College Station Texas 77843 USA
- Grupo de Investigación en Zoología Facultad de Ciencias Universidad del Tolima Tolima Colombia
| | - Kirk O. Winemiller
- Department of Wildlife and Fisheries Sciences Texas A&M University College Station Texas 77843 USA
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123
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Moresco GA, Bortolini JC, Rodrigues LC, Jati S, Machado Velho LF. A functional deconstructive approach to mixotrophic phytoplankton responds better to local, regional and biogeographic predictors than species. AUSTRAL ECOL 2019. [DOI: 10.1111/aec.12852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Geovani Arnhold Moresco
- Programa de Pós-graduação em Ecologia de Ambientes Continentais; Universidade Estadual de Maringá; Maringá PR Brazil
| | - Jascieli Carla Bortolini
- Departamento de Botânica; Universidade Federal de Goiás; ICB; Avenida Esperança, s/n 74690-900 Goiânia GO Brazil
| | - Luzia Cleide Rodrigues
- Programa de Pós-graduação em Ecologia de Ambientes Continentais; Universidade Estadual de Maringá; Maringá PR Brazil
- Núcleo de Pesquisas em Limnologia; Ictiologia e Aquicultura; Universidade Estadual de Maringá; Avenida Colombo; 5790, Bloco H-90, Sala 23 87020-900 Maringá PR Brazil
| | - Susicley Jati
- Núcleo de Pesquisas em Limnologia; Ictiologia e Aquicultura; Universidade Estadual de Maringá; Avenida Colombo; 5790, Bloco H-90, Sala 23 87020-900 Maringá PR Brazil
| | - Luiz Felipe Machado Velho
- Programa de Pós-graduação em Ecologia de Ambientes Continentais; Universidade Estadual de Maringá; Maringá PR Brazil
- Núcleo de Pesquisas em Limnologia; Ictiologia e Aquicultura; Universidade Estadual de Maringá; Avenida Colombo; 5790, Bloco H-90, Sala 23 87020-900 Maringá PR Brazil
- Programa de Pós-Graduação em Tecnologias Limpas (PPGTL); Centro Universitário de Maringá; Avenida Guedner, 1610 Maringá 87050-390 Brazil
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124
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Chen W, Jiao S, Li Q, Du N. Dispersal limitation relative to environmental filtering governs the vertical small‐scale assembly of soil microbiomes during restoration. J Appl Ecol 2019. [DOI: 10.1111/1365-2664.13533] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Weimin Chen
- State Key Laboratory of Crop Stress Biology in Arid Areas College of Life Sciences Northwest A&F University Yangling P. R. China
| | - Shuo Jiao
- State Key Laboratory of Crop Stress Biology in Arid Areas College of Life Sciences Northwest A&F University Yangling P. R. China
| | - Qiaoping Li
- State Key Laboratory of Crop Stress Biology in Arid Areas College of Life Sciences Northwest A&F University Yangling P. R. China
| | - Nini Du
- State Key Laboratory of Crop Stress Biology in Arid Areas College of Life Sciences Northwest A&F University Yangling P. R. China
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125
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Taxonomic and functional anuran beta diversity of a subtropical metacommunity respond differentially to environmental and spatial predictors. PLoS One 2019; 14:e0214902. [PMID: 31725730 PMCID: PMC6855460 DOI: 10.1371/journal.pone.0214902] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Accepted: 10/25/2019] [Indexed: 11/19/2022] Open
Abstract
Anurans exhibit limited dispersion ability and have physiological and behavioural characteristics that narrow their relationships with both environmental and spatial predictors. So, the relative contributions of environmental and spatial predictors in the patterns of taxonomic and functional anuran beta diversity were examined in a metacommunity of 33 ponds along the coast of south Brazil. We expected that neutral processes and, in particular, niche-based processes could have similar influence on the taxonomic and functional beta diversity patterns. Distance-based methods (db-RDA) with variation partitioning were conducted with abundance data to examine taxonomic and functional facets and components (total, turnover and nestedness) in relation to environmental and spatial predictors. Processes determining metacommunity structure differed between the components of beta diversity and among taxonomic and functional diversity. While taxonomic beta diversity was further accounted by both environmental and spatial predictors, functional beta diversity responded more strongly to spatial predictors. These two contrasting patterns were different to what we had predicted, suggesting that while there is a taxonomic turnover mediated by environmental filters, the spatial distance promotes the trait dissimilarity between sites. In addition, our data confirm that neutral and niche-based processes operate on anuran metacommunities even at short geographic scales. Our results reinforce the idea that studies aiming to evaluate the patterns of structure in metacommunities should include different facets of diversity so that better interpretations can be achieved.
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126
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Lansac-Tôha FM, Heino J, Quirino BA, Moresco GA, Peláez O, Meira BR, Rodrigues LC, Jati S, Lansac-Tôha FA, Velho LFM. Differently dispersing organism groups show contrasting beta diversity patterns in a dammed subtropical river basin. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 691:1271-1281. [PMID: 31466207 DOI: 10.1016/j.scitotenv.2019.07.236] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 06/06/2019] [Accepted: 07/15/2019] [Indexed: 06/10/2023]
Abstract
Although it is widely known that dams can have large impacts on the environmental and biological characteristics of downstream rivers, there is a substantial lack of studies focusing on which ecological processes cause longitudinal changes in biological communities downstream of reservoirs. We investigated longitudinal patterns in the total beta diversity and its replacement and richness difference components for actively (fish) and passively (phytoplankton) dispersing biological groups. Our results, obtained from a 230 km sampling stretch, demonstrated the key role played by tributaries in the downstream direction from main river impoundment, which influenced local environmental conditions and beta diversity patterns of each biological group. Both replacement and richness difference contributed to high values of total beta diversity for fish (average = 0.77) and phytoplankton (average = 0.79), but their relative importance was more associated with the replacement component for both biological groups (average = 0.45 and 0.52, respectively). Moreover, we observed clear differences between fish and phytoplankton in beta diversity patterns operating at small and broad scales, as well as in the mechanisms driving each beta diversity component. Directional dispersal-related processes and environmental filtering played a major role in shaping total beta diversity and its components for fish, while temporal factors explained considerable parts of phytoplankton beta diversity. Our findings contributed to understanding of tributary-induced heterogeneity and highlight the importance of dam-free stretches of rivers for preserving the integrity of dammed river basins.
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Affiliation(s)
- Fernando M Lansac-Tôha
- Universidade Estadual de Maringá (UEM), DBI/PEA/NUPÉLIA, Av. Colombo, 5790, CEP: 87.020-900 Maringá, PR, Brazil.
| | - Jani Heino
- Finnish Environment Institute (SYKE), Freshwater Centre, Paavo Havaksen Tie 3, Oulu, Finland
| | - Bárbara A Quirino
- Universidade Estadual de Maringá (UEM), DBI/PEA/NUPÉLIA, Av. Colombo, 5790, CEP: 87.020-900 Maringá, PR, Brazil
| | - Geovani A Moresco
- Universidade Estadual de Maringá (UEM), DBI/PEA/NUPÉLIA, Av. Colombo, 5790, CEP: 87.020-900 Maringá, PR, Brazil
| | - Oscar Peláez
- Universidade Estadual de Maringá (UEM), DBI/PEA/NUPÉLIA, Av. Colombo, 5790, CEP: 87.020-900 Maringá, PR, Brazil
| | - Bianca R Meira
- Universidade Estadual de Maringá (UEM), DBI/PEA/NUPÉLIA, Av. Colombo, 5790, CEP: 87.020-900 Maringá, PR, Brazil
| | - Luzia C Rodrigues
- Universidade Estadual de Maringá (UEM), DBI/PEA/NUPÉLIA, Av. Colombo, 5790, CEP: 87.020-900 Maringá, PR, Brazil
| | - Susicley Jati
- Universidade Estadual de Maringá (UEM), DBI/PEA/NUPÉLIA, Av. Colombo, 5790, CEP: 87.020-900 Maringá, PR, Brazil
| | - Fábio A Lansac-Tôha
- Universidade Estadual de Maringá (UEM), DBI/PEA/NUPÉLIA, Av. Colombo, 5790, CEP: 87.020-900 Maringá, PR, Brazil
| | - Luiz Felipe M Velho
- Universidade Estadual de Maringá (UEM), DBI/PEA/NUPÉLIA, Av. Colombo, 5790, CEP: 87.020-900 Maringá, PR, Brazil; UniCesumar -PPGTL, Instituto Cesumar de Ciência Tecnologia e Inovação (ICETI), Av. Guedner, 1610, CEP: 87.050-390 Maringá, PR, Brazil
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127
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Hillaert J, Vandegehuchte ML, Hovestadt T, Bonte D. Habitat loss and fragmentation increase realized predator–prey body size ratios. Funct Ecol 2019. [DOI: 10.1111/1365-2435.13472] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jasmijn Hillaert
- Department of Biology Terrestrial Ecology Unit Ghent University Ghent Belgium
| | | | - Thomas Hovestadt
- Department of Animal Ecology and Tropical Biology Biocenter University of Würzburg Würzburg Germany
| | - Dries Bonte
- Department of Biology Terrestrial Ecology Unit Ghent University Ghent Belgium
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128
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Ács É, Földi A, Vad CF, Trábert Z, Kiss KT, Duleba M, Borics G, Grigorszky I, Botta-Dukát Z. Trait-based community assembly of epiphytic diatoms in saline astatic ponds: a test of the stress-dominance hypothesis. Sci Rep 2019; 9:15749. [PMID: 31673074 PMCID: PMC6823390 DOI: 10.1038/s41598-019-52304-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 10/16/2019] [Indexed: 11/09/2022] Open
Abstract
The stress dominance hypothesis (SDH) postulates that strong environmental gradients drive trait convergence in communities over limiting similarity. Previous studies, conducted mostly with terrestrial plant communities, found controversial evidence for this prediction. We provide here the first test for SDH for epiphytic diatoms. We studied community assembly in diatom communities of astatic ponds. These water bodies serve as a good model system for testing SDH because they exhibit stress gradients of various environmental factors. Functional diversity of diatom communities was assessed based on four traits: (1) combined trait reflecting the trade-off between stress tolerance and competitive dominance, (2) cell size, (3) oxygen requirement and (4) N-uptake strategy. According to our results, salinity, pH and the width of the macrophyte belt appeared as significant predictors of the trait convergence/divergence patterns presumably acting through influencing the availability of carbon dioxide and turbidity. Lower trait diversity was found in turbid, more saline and more alkaline ponds and functional diversity was higher in transparent, less saline and less alkaline ponds. Overall, our results supported the stress dominance hypothesis. In habitats representing increased environmental stress, environmental filtering was the most important community assembly rule, while limiting similarity became dominant under more favourable conditions.
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Affiliation(s)
- Éva Ács
- MTA Centre for Ecological Research, Danube Research Institute, Karolina út 29, H-1113, Budapest, Hungary.
- National University of Public Service, Faculty of Water Sciences, 6500, Baja, Bajcsy-Zsilinszky utca 12-14, Hungary.
| | - Angéla Földi
- MTA Centre for Ecological Research, Danube Research Institute, Karolina út 29, H-1113, Budapest, Hungary
- Doctoral School of Environmental Sciences, Eötvös Lóránd University, Budapest, Hungary
| | - Csaba Ferenc Vad
- Wasser Cluster Lunz, Dr. Carl Kupelwieser Promenade 5, A-3293, Lunz am See, Austria
| | - Zsuzsa Trábert
- MTA Centre for Ecological Research, Danube Research Institute, Karolina út 29, H-1113, Budapest, Hungary
- Doctoral School of Environmental Sciences, Eötvös Lóránd University, Budapest, Hungary
| | - Keve Tihamér Kiss
- MTA Centre for Ecological Research, Danube Research Institute, Karolina út 29, H-1113, Budapest, Hungary
| | - Mónika Duleba
- MTA Centre for Ecological Research, Danube Research Institute, Karolina út 29, H-1113, Budapest, Hungary
- MTA Centre for Ecological Research, Sustainable Ecosystems Group, Klebelsberg Kuno u. 3, H-8237, Tihany, Hungary
| | - Gábor Borics
- MTA Centre for Ecological Research, Danube Research Institute, Karolina út 29, H-1113, Budapest, Hungary
| | - István Grigorszky
- University of Debrecen, Department of Hydrobiology, Egyetem tér 1., H-4032, Debrecen, Hungary
| | - Zoltán Botta-Dukát
- MTA Centre for Ecological Research, Sustainable Ecosystems Group, Klebelsberg Kuno u. 3, H-8237, Tihany, Hungary
- MTA Centre for Ecological Research, Institute of Ecology and Botany, Alkotmány u. 2-4., H-2163, Vácrátót, Hungary
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129
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Rizo EZ, Xu S, Tang Q, Papa RDS, Dumont HJ, Qian SS, Han BP. A global analysis of cladoceran body size and its variation linking to habitat, distribution and taxonomy. Zool J Linn Soc 2019. [DOI: 10.1093/zoolinnean/zlz053] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Body size is a functional trait that influences the overall biology and ecology of an organism. Studying the shape of size–frequency distributions and size variability within different scales, approximates the influence of large-scale ecological and evolutionary processes on a species. In this study we examine the patterns of distribution and variability of body size among freshwater Cladocera across different taxonomic levels, geographic distribution and habitat association. Using extensive literature data, we show the global distribution of body size in freshwater Cladocera. Hierarchical models were used to assess the effect of different categorical variables on size variability. Our results show that almost all size–frequency distributions were skewed right in all categories. The hierarchical model showed that taxonomic affiliation contributes the most to size variability in our dataset, suggesting that size might be a conserved trait. Large genera (≥1mm) have larger estimated variability compared to smaller genera. In general, our observations on size–frequency distributions and size variability show a brief insight in the varying advantages of adaptive body size in this group of organisms in both biology (physiology) and ecology (competition and co-existence). Thus, body size is a trait important to the survival and continuing evolution of Cladocera.
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Affiliation(s)
- Eric Zeus Rizo
- Department of Ecology, Institute of Hydrobiology, College of Life Sciences and Technology, Jinan University, Guangzhou, Guangdong, People’s Republic of China
| | - Shaolin Xu
- Department of Ecology, Institute of Hydrobiology, College of Life Sciences and Technology, Jinan University, Guangzhou, Guangdong, People’s Republic of China
| | - Quehui Tang
- Department of Ecology, Institute of Hydrobiology, College of Life Sciences and Technology, Jinan University, Guangzhou, Guangdong, People’s Republic of China
| | - Rey Donne S Papa
- Department of Biological Sciences, College of Science, The Graduate School and Research Center for the Natural and Applied Sciences, University of Santo Tomas, Manila, Philippines
| | - Henri J Dumont
- Department of Ecology, Institute of Hydrobiology, College of Life Sciences and Technology, Jinan University, Guangzhou, Guangdong, People’s Republic of China
| | - Song S Qian
- Department of Environmental Sciences, The University of Toledo, Toledo, OH, USA
| | - Bo-Ping Han
- Department of Ecology, Institute of Hydrobiology, College of Life Sciences and Technology, Jinan University, Guangzhou, Guangdong, People’s Republic of China
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130
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Zeng J, Lin Y, Zhao D, Huang R, Xu H, Jiao C. Seasonality overwhelms aquacultural activity in determining the composition and assembly of the bacterial community in Lake Taihu, China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 683:427-435. [PMID: 31141745 DOI: 10.1016/j.scitotenv.2019.05.256] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 04/29/2019] [Accepted: 05/17/2019] [Indexed: 06/09/2023]
Abstract
Aquaculture accounts for an extremely valuable and rapidly expanding sector of global food production, yet its environmental impacts on aquatic ecosystems have attracted much concern. In this study, we collected water samples from eastern Lake Taihu, China. We targeted sites varying in their intensity of aquacultural activities and sampled them over multiple seasons. For each sample, we measured physicochemical variables, and we sequenced the 16S rRNA gene of the respective bacterial communities using an Illumina second-generation sequencing platform. Marked differences in diversity and bacterial community composition were observed between seasons, whereas we observed relatively weak differences between sites. Remarkable differences in the abundance of the bacterial community were observed at the phylum and genus levels across the different seasons. Stochastic processes dominated the assembly of bacterial communities in the aquaculture-influenced systems, and the assembly processes of bacterial community differed between seasons. Our observations highlight the effect of seasonality on bacterial communities and provide a more complete knowledge base for the proper assessment of the effects of aquacultural activities on freshwater ecosystems.
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Affiliation(s)
- Jin Zeng
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China.
| | - Yuqing Lin
- State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Joint International Research Laboratory of Global Change and Water Cycle, Hohai University, Nanjing 210098, China
| | - Dayong Zhao
- State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Joint International Research Laboratory of Global Change and Water Cycle, Hohai University, Nanjing 210098, China
| | - Rui Huang
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China; State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Joint International Research Laboratory of Global Change and Water Cycle, Hohai University, Nanjing 210098, China
| | - Huimin Xu
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China; State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Joint International Research Laboratory of Global Change and Water Cycle, Hohai University, Nanjing 210098, China
| | - Congcong Jiao
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China; State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Joint International Research Laboratory of Global Change and Water Cycle, Hohai University, Nanjing 210098, China
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131
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Limberger R, Pitt A, Hahn MW, Wickham SA. Spatial insurance in multi-trophic metacommunities. Ecol Lett 2019; 22:1828-1837. [PMID: 31392829 PMCID: PMC6852594 DOI: 10.1111/ele.13365] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 03/26/2019] [Accepted: 07/16/2019] [Indexed: 01/21/2023]
Abstract
Metacommunity theory suggests that dispersal is a key driver of diversity and ecosystem functioning in changing environments. The capacity of dispersal to mitigate effects of environmental change might vary among trophic groups, potentially resulting in changes in trophic interactions and food web structure. In a mesocosm experiment, we compared the compositional response of bacteria, phyto‐ and zooplankton to a factorial manipulation of acidification and dispersal. We found that the buffering capacity of dispersal varied among trophic groups: dispersal alleviated the negative effect of acidification on phytoplankton diversity mid‐experiment, but had no effect on the diversity of zooplankton and bacteria. Likewise, trophic groups differed in whether dispersal facilitated compositional change. Dispersal accelerated changes in phytoplankton composition under acidification, possibly mediated by changes in trophic interactions, but had no effect on the composition of zooplankton and bacteria. Overall, our results suggest that the potential for spatial insurance can vary among trophic groups.
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Affiliation(s)
- Romana Limberger
- Research Department for Limnology, University of Innsbruck, Mondsee, Austria.,Department of Biosciences, University of Salzburg, Salzburg, Austria
| | - Alexandra Pitt
- Department of Biosciences, University of Salzburg, Salzburg, Austria
| | - Martin W Hahn
- Research Department for Limnology, University of Innsbruck, Mondsee, Austria
| | - Stephen A Wickham
- Department of Biosciences, University of Salzburg, Salzburg, Austria
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132
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Exploring thermal flight responses as predictors of flight ability and geographic range size in Drosophila. Comp Biochem Physiol A Mol Integr Physiol 2019; 236:110532. [PMID: 31351148 DOI: 10.1016/j.cbpa.2019.110532] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 07/01/2019] [Accepted: 07/18/2019] [Indexed: 11/21/2022]
Abstract
Thermal flight performance curves (TFPCs) may be a useful proxy for determining dispersal on daily timescales in winged insect species. Few studies have assessed TFPCs across a range of species under standard conditions despite that they may be useful in predicting variation in performance, abundance or geographic range shifts with forecast climate variability. Indeed, the factors determining realized dispersal within and among flying insect species are generally poorly understood. To better understand how flight performance may be correlated with geographic range extent and potential latitudinal climate variability, we estimated the thermal performance curves of flight ability in 11 Drosophilidae species (in 4 °C increments across 16-28 °C) after standard laboratory rearing for two generations. We tested if key morphological, evolutionary or ecological factors (e.g. species identity, sex, body mass, wing loading, geographic range size) predicted traits of TFPCs (including optimum temperature, maximum performance, thermal breadth of performance) or flight ability (success/failure to fly). Although several parameters of TFPCs varied among species these were typically not statistically significant probably owing to the relatively small pool of species assessed and the limited trait variation detected. The best explanatory model of these flight responses across species included significant positive effects of test temperature and wing area. However, the rank of geographic distribution breadth and phylogeny failed to explain significant variation in most of the traits, except for thermal performance breadth, of thermal flight performance curves among these 11 species. Future studies that employ a wider range of Drosophilidae species, especially if coupled with fine-scale estimates of species' environmental niches, would be useful.
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133
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Oertli B, Parris KM. Review: Toward management of urban ponds for freshwater biodiversity. Ecosphere 2019. [DOI: 10.1002/ecs2.2810] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Affiliation(s)
- Beat Oertli
- HEPIA, HES‐SO University of Applied Sciences and Arts Western Switzerland 150 Route de Presinge 1254 Jussy‐Geneva Switzerland
| | - Kirsten M. Parris
- School of Ecosystem and Forest Sciences The University of Melbourne Parkville Victoria 3010 Australia
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134
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Germain RM, Jones NT, Grainger TN. Cryptic dispersal networks shape biodiversity in an invaded landscape. Ecology 2019; 100:e02738. [DOI: 10.1002/ecy.2738] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 12/18/2018] [Accepted: 03/11/2019] [Indexed: 11/09/2022]
Affiliation(s)
- Rachel M. Germain
- Department of Zoology and the Biodiversity Research Centre University of British Columbia Vancouver British Columbia V6T 1Z4 Canada
- Department of Ecology and Evolutionary Princeton University 106A Guyot Hall Princeton New Jersey 08544 USA
| | - Natalie T. Jones
- Department of Ecology and Evolutionary Princeton University 106A Guyot Hall Princeton New Jersey 08544 USA
- School of Biological Sciences University of Queensland Brisbane Queensland 4072 Australia
| | - Tess Nahanni Grainger
- Department of Ecology and Evolutionary Princeton University 106A Guyot Hall Princeton New Jersey 08544 USA
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135
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Salgado J, Sayer CD, Brooks SJ, Davidson TA, Baker AG, Willby N, Patmore IR, Goldsmith B, Bennion H, Okamura B. Connectivity and zebra mussel invasion offer short‐term buffering of eutrophication impacts on floodplain lake landscape biodiversity. DIVERS DISTRIB 2019. [DOI: 10.1111/ddi.12938] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Affiliation(s)
- Jorge Salgado
- Department of Life Sciences Natural History Museum London UK
- Environmental Change Research Centre, Department of Geography University College London London UK
- Grupo de Palinología y Paleoecología Tropical, Departamento de Ciencias Biológicas Universidad de los Andes Bogotá Colombia
| | - Carl D. Sayer
- Environmental Change Research Centre, Department of Geography University College London London UK
| | | | - Thomas A. Davidson
- Lake Group and Arctic Research Centre, Department of Bioscience Aarhus University Aarhus Denmark
| | - Ambroise G. Baker
- Environmental Change Research Centre, Department of Geography University College London London UK
| | - Nigel Willby
- Biological and Environmental Sciences University of Stirling Stirling UK
| | - Ian R. Patmore
- Environmental Change Research Centre, Department of Geography University College London London UK
| | - Ben Goldsmith
- Environmental Change Research Centre, Department of Geography University College London London UK
| | - Helen Bennion
- Environmental Change Research Centre, Department of Geography University College London London UK
| | - Beth Okamura
- Department of Life Sciences Natural History Museum London UK
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136
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Hanashiro FTT, Mukherjee S, Souffreau C, Engelen J, Brans KI, Busschaert P, De Meester L. Freshwater Bacterioplankton Metacommunity Structure Along Urbanization Gradients in Belgium. Front Microbiol 2019; 10:743. [PMID: 31031725 PMCID: PMC6473040 DOI: 10.3389/fmicb.2019.00743] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 03/25/2019] [Indexed: 12/29/2022] Open
Abstract
Urbanization is transforming and fragmenting natural environments worldwide, driving changes in biological communities through alterations in local environmental conditions as well as by changing the capacity of species to reach specific habitats. While the majority of earlier studies have been performed on higher plants and animals, it is crucial to increase our insight on microbial responses to urbanization across different spatial scales. Here, using a metacommunity approach, we evaluated the effects of urbanization on bacterioplankton communities in 50 shallow ponds in Belgium (Flanders region), one of the most urbanized areas in Northwest Europe. We estimated the relative importance of local environmental factors (35 abiotic and biotic variables), regional spatial factors and urbanization (built-up area) quantified at two spatial scales (200 m × 200 m and 3 km × 3 km). We show that urbanization at local or regional scales did not lead to strong changes in community composition and taxon diversity of bacterioplankton. Urbanization at regional scale (3 km × 3 km) explained only 2% of community composition variation while at local scale (200 m × 200 m), no effect was detected. Local environmental factors explained 13% (OTUs with relative abundance ≥ 0.1%) to 24% (12 dominant OTUs -≥ 1%) of community variation. Six local environmental variables significantly explained variation in bacterioplankton community composition: pH, alkalinity, conductivity, total phosphorus, abundance of Daphnia and concentration of copper (Cu), of which pH was partly mediated by urbanization. Our results indicate that environmental rather than spatial factors accounted for the variation in bacterioplankton community structure, suggesting that species sorting is the main process explaining bacterioplankton community assembly. Apparently, urbanization does not have a direct and strong effect on bacterioplankton metacommunity structure, probably due to the capacity of these organisms to adapt toward and colonize habitats with different environmental conditions and due to their fast adaptation and metabolic versatility. Thus, bacterioplankton communities inhabiting shallow ponds may be less affected by environmental conditions resulting from urbanization as compared to the impacts previously described for other taxa.
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Affiliation(s)
- Fabio Toshiro T Hanashiro
- Laboratory of Aquatic Ecology, Evolution and Conservation, Department of Biology, KU Leuven, Leuven, Belgium
| | - Shinjini Mukherjee
- Laboratory of Aquatic Ecology, Evolution and Conservation, Department of Biology, KU Leuven, Leuven, Belgium
| | - Caroline Souffreau
- Laboratory of Aquatic Ecology, Evolution and Conservation, Department of Biology, KU Leuven, Leuven, Belgium
| | - Jessie Engelen
- Laboratory of Aquatic Ecology, Evolution and Conservation, Department of Biology, KU Leuven, Leuven, Belgium
| | - Kristien I Brans
- Laboratory of Aquatic Ecology, Evolution and Conservation, Department of Biology, KU Leuven, Leuven, Belgium
| | - Pieter Busschaert
- Department of Gynaecology and Obstetrics, UZ Leuven, Leuven, Belgium.,Division of Gynaecological Oncology, Leuven Cancer Institute, KU Leuven, Leuven, Belgium
| | - Luc De Meester
- Laboratory of Aquatic Ecology, Evolution and Conservation, Department of Biology, KU Leuven, Leuven, Belgium
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137
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Henckel L, Meynard CN, Devictor V, Mouquet N, Bretagnolle V. On the relative importance of space and environment in farmland bird community assembly. PLoS One 2019; 14:e0213360. [PMID: 30856193 PMCID: PMC6411160 DOI: 10.1371/journal.pone.0213360] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Accepted: 02/20/2019] [Indexed: 11/18/2022] Open
Abstract
The relative contribution of ecological processes in shaping metacommunity dynamics in heavily managed landscapes is still unclear. Here we used two complementary approaches to disentangle the role of environment and spatial effect in farmland bird community assembly in an intensive agro-ecosystem. We hypothesized that the interaction between habitat patches and dispersal should play a major role in such unstable and unpredictable environments. First, we used a metacommunity patterns analysis to characterize species co-occurrences and identify the main drivers of community assembly; secondly, variation partitioning was used to disentangle environmental and geographical factors (such as dispersal limitation) on community structure and composition. We used high spatial resolution data on bird community structure and composition distributed among 260 plots in an agricultural landscape. Species were partitioned into functional classes, and point count stations were classified according to landscape characteristics before applying metacommunity and partitioning analyses within each. Overall we could explain around 20% of the variance in species composition in our system, revealing that stochasticity remains very important at this scale. However, this proportion varies depending on the scale of analysis, and reveals potentially important contributions of environmental filtering and dispersal. These conclusions are further reinforced when the analysis was deconstructed by bird functional classes or by landscape habitat classes, underlining trait-related filters, thus reinforcing the idea that wooded areas in these agroecosystems may represent important sources for a specific group of bird species. Our analysis shows that deconstructing the species assemblages into separate functional groups and types of landscapes, along with a combination of analysis strategies, can help in understanding the mechanisms driving community assembly.
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Affiliation(s)
- Laura Henckel
- Centre d'Etudes Biologiques de Chizé (CEBC), UMR 7372 CNRS & Université de La Rochelle, Beauvoir sur Niort, France
| | - Christine N. Meynard
- CBGP, INRA, CIRAD, IRD, Montpellier SupAgro, Univ Montpellier, Montpellier, France
| | - Vincent Devictor
- Institut des Sciences de l'Evolution, Université de Montpellier, CNRS, IRD, EPHE, Place Eugène Bataillon, Montpellier Cedex 05, France
| | - Nicolas Mouquet
- MARBEC, Univ Montpellier, CNRS, Ifremer, IRD, Montpellier, France
| | - Vincent Bretagnolle
- Centre d'Etudes Biologiques de Chizé (CEBC), UMR 7372 CNRS & Université de La Rochelle, Beauvoir sur Niort, France
- LTSER “Zone Atelier Plaine & Val de Sèvre”, Beauvoir sur Niort, France
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138
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Hamel JF, Sun J, Gianasi BL, Montgomery EM, Kenchington EL, Burel B, Rowe S, Winger PD, Mercier A. Active buoyancy adjustment increases dispersal potential in benthic marine animals. J Anim Ecol 2019; 88:820-832. [PMID: 30636040 PMCID: PMC6850204 DOI: 10.1111/1365-2656.12943] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Accepted: 12/19/2018] [Indexed: 11/29/2022]
Abstract
While the study of dispersal and connectivity in the ocean typically centres on pelagic species and planktonic larval stages of benthic species, the present work explores an overlooked locomotor means in post‐settlement benthic stages that redefines their dispersal potential. Members of the echinoderm class Holothuroidea colonize a diversity of marine environments world‐wide, where they play key ecological and economical roles, making their conservation a priority. Holothuroids are commonly called sea cucumbers or sea slugs to reflect their slow movements and are assumed to disperse chiefly through pelagic larvae. The present study documents and explores their unexpected ability to actively modify their buoyancy, leading them to tumble or float at speeds orders of magnitudes faster than through benthic crawling. Two focal species representing different taxonomic orders, geographic distributions and reproductive strategies were studied over several years. Active buoyancy adjustment (ABA) was achieved through a rapid increase in water‐to‐flesh ratio by up to 740%, leading to bloating, and simultaneously detachment from the substrate. It occurred as early as 6 months post settlement in juveniles and was recorded in wild adult populations. In experimental trials, ABA was triggered by high conspecific density, decreasing salinity and increasing water turbidity. Based on field video footage, ABA‐assisted movements generated speeds of up to 90 km/day. These findings imply that displacement during planktonic larval stages may not supersede the locomotor capacity of benthic stages, challenging the notion of sedentarity. Combining the present results and anecdotal reports, ABA emerges as a generalized means of dispersal among benthic animals, with critical implications for world‐wide management and conservation of commercially and ecologically significant species.
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Affiliation(s)
- Jean-François Hamel
- Society for the Exploration and Valuing of the Environment (SEVE), St. Philips, Newfoundland, Canada
| | - Jiamin Sun
- Department of Ocean Sciences, Memorial University, St. John's, Newfoundland, Canada
| | - Bruno L Gianasi
- Department of Ocean Sciences, Memorial University, St. John's, Newfoundland, Canada
| | - Emaline M Montgomery
- Department of Ocean Sciences, Memorial University, St. John's, Newfoundland, Canada
| | - Ellen L Kenchington
- Department of Fisheries and Oceans Canada (DFO), Bedford Institute of Oceanography (BIO), Dartmouth, Nova Scotia, Canada
| | | | - Sherrylynn Rowe
- Fisheries and Marine Institute, Memorial University, St. John's, Newfoundland, Canada
| | - Paul D Winger
- Fisheries and Marine Institute, Memorial University, St. John's, Newfoundland, Canada
| | - Annie Mercier
- Department of Ocean Sciences, Memorial University, St. John's, Newfoundland, Canada
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139
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De Meester L, Brans KI, Govaert L, Souffreau C, Mukherjee S, Vanvelk H, Korzeniowski K, Kilsdonk L, Decaestecker E, Stoks R, Urban MC. Analysing eco‐evolutionary dynamics—The challenging complexity of the real world. Funct Ecol 2019. [DOI: 10.1111/1365-2435.13261] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Luc De Meester
- Laboratory of Aquatic Ecology, Evolution and Conservation KU Leuven Leuven Belgium
| | - Kristien I. Brans
- Laboratory of Aquatic Ecology, Evolution and Conservation KU Leuven Leuven Belgium
| | - Lynn Govaert
- Laboratory of Aquatic Ecology, Evolution and Conservation KU Leuven Leuven Belgium
- Department of Aquatic Ecology Eawag: Swiss Federal Institute of Aquatic Science and Technology Dübendorf Switzerland
- Department of Evolutionary Biology and Environmental Studies University of Zurich Zürich Switzerland
| | - Caroline Souffreau
- Laboratory of Aquatic Ecology, Evolution and Conservation KU Leuven Leuven Belgium
| | - Shinjini Mukherjee
- Laboratory of Aquatic Ecology, Evolution and Conservation KU Leuven Leuven Belgium
| | - Héléne Vanvelk
- Laboratory of Aquatic Ecology, Evolution and Conservation KU Leuven Leuven Belgium
| | - Konrad Korzeniowski
- Laboratory of Aquatic Ecology, Evolution and Conservation KU Leuven Leuven Belgium
| | - Laurens Kilsdonk
- Laboratory of Aquatic Ecology, Evolution and Conservation KU Leuven Leuven Belgium
| | - Ellen Decaestecker
- Laboratory of Aquatic Biology, IRF Life Sciences, KULAK KU Leuven Kortrijk Belgium
| | - Robby Stoks
- Laboratory or Evolutionary Stress Ecology and Ecotoxicology KU Leuven Leuven Belgium
| | - Mark C. Urban
- Department of Ecology and Evolutionary Biology, Center for Biodiversity and Ecological Risk University of Connecticut Storrs Connecticut
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140
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Fontaneto D. Long-distance passive dispersal in microscopic aquatic animals. MOVEMENT ECOLOGY 2019; 7:10. [PMID: 30962931 PMCID: PMC6434837 DOI: 10.1186/s40462-019-0155-7] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 03/05/2019] [Indexed: 05/21/2023]
Abstract
Given their dormancy capability (long-term resistant stages) and their ability to colonise and reproduce, microscopic aquatic animals have been suggested having cosmopolitan distribution. Their dormant stages may be continuously moved by mobile elements through the entire planet to any suitable habitat, preventing the formation of biogeographical patterns. In this review, I will go through the evidence we have on the most common microscopic aquatic animals, namely nematodes, rotifers, and tardigrades, for each of the assumptions allowing long-distance dispersal (dormancy, viability, and reproduction) and all the evidence we have for transportation, directly from surveys of dispersing stages, and indirectly from the outcome of successful dispersal in biogeographical and phylogeographical studies. The current knowledge reveals biogeographical patterns also for microscopic organisms, with species-specific differences in ecological features that make some taxa indeed cosmopolitan with the potential for long-distance dispersal, but others with restricted geographic distributions.
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Affiliation(s)
- Diego Fontaneto
- National Research Council of Italy, Water Research Institute, Largo Tonolli 50, 28922 Verbania Pallanza, Italy
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141
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Alahuhta J, Lindholm M, Bove CP, Chappuis E, Clayton J, de Winton M, Feldmann T, Ecke F, Gacia E, Grillas P, Hoyer MV, Johnson LB, Kolada A, Kosten S, Lauridsen T, Lukács BA, Mjelde M, Mormul RP, Rhazi L, Rhazi M, Sass L, Søndergaard M, Xu J, Heino J. Global patterns in the metacommunity structuring of lake macrophytes: regional variations and driving factors. Oecologia 2018; 188:1167-1182. [PMID: 30374676 PMCID: PMC6244864 DOI: 10.1007/s00442-018-4294-0] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Accepted: 10/23/2018] [Indexed: 12/11/2022]
Abstract
We studied community-environment relationships of lake macrophytes at two metacommunity scales using data from 16 regions across the world. More specifically, we examined (a) whether the lake macrophyte communities respond similar to key local environmental factors, major climate variables and lake spatial locations in each of the regions (i.e., within-region approach) and (b) how well can explained variability in the community-environment relationships across multiple lake macrophyte metacommunities be accounted for by elevation range, spatial extent, latitude, longitude, and age of the oldest lake within each metacommunity (i.e., across-region approach). In the within-region approach, we employed partial redundancy analyses together with variation partitioning to investigate the relative importance of local variables, climate variables, and spatial location on lake macrophytes among the study regions. In the across-region approach, we used adjusted R2 values of the variation partitioning to model the community-environment relationships across multiple metacommunities using linear regression and commonality analysis. We found that niche filtering related to local lake-level environmental conditions was the dominant force structuring macrophytes within metacommunities. However, our results also revealed that elevation range associated with climate (increasing temperature amplitude affecting macrophytes) and spatial location (likely due to dispersal limitation) was important for macrophytes based on the findings of the across-metacommunities analysis. These findings suggest that different determinants influence macrophyte metacommunities within different regions, thus showing context dependency. Moreover, our study emphasized that the use of a single metacommunity scale gives incomplete information on the environmental features explaining variation in macrophyte communities.
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Affiliation(s)
- Janne Alahuhta
- Geography Research Unit, University of Oulu, P.O. Box 3000, 90014, Oulu, Finland.
- Finnish Environment Institute, Freshwater Centre, P.O. Box 413, 90014, Oulu, Finland.
| | - Marja Lindholm
- Geography Research Unit, University of Oulu, P.O. Box 3000, 90014, Oulu, Finland
| | - Claudia P Bove
- Departamento de Botânica, Museu Nacional, Universidade Federal do Rio de Janeiro, Quinta da Boa Vista, Rio De Janeiro, RJ, 20940‒040, Brazil
| | - Eglantine Chappuis
- Centre d'Estudis Avançats de Blanes (CEAB), Consejo Superior de Investigaciones Científicas (CSIC), C/accés a la Cala St. Francesc 14, 17300, Blanes, Spain
| | - John Clayton
- National Institute of Water and Atmospheric Research Limited, P.O. Box 11115, Hamilton, New Zealand
| | - Mary de Winton
- National Institute of Water and Atmospheric Research Limited, P.O. Box 11115, Hamilton, New Zealand
| | - Tõnu Feldmann
- Centre for Limnology, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, 61117, Rannu, Tartumaa, Estonia
| | - Frauke Ecke
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences (SLU), P.O. Box 7050, 750 07, Uppsala, Sweden
- Department of Wildlife, Fish and Environmental Studies, Swedish University of Agricultural Sciences (SLU), 901 83, Umeå, Sweden
| | - Esperança Gacia
- Centre d'Estudis Avançats de Blanes (CEAB), Consejo Superior de Investigaciones Científicas (CSIC), C/accés a la Cala St. Francesc 14, 17300, Blanes, Spain
| | - Patrick Grillas
- Tour du Valat, Research Institute for the conservation of Mediterranean wetlands, Le Sambuc, 13200, Arles, France
| | - Mark V Hoyer
- Fisheries and Aquatic Sciences, School of Forest Resources and Conservation, Institute of Food and Agricultural Services, University of Florida, 7922 NW 71st Street, Gainesville, FL, 32609, USA
| | - Lucinda B Johnson
- Natural Resources Research Institute, University of Minnesota Duluth, 5013 Miller Trunk Highway, Duluth, MN, 55811, USA
| | - Agnieszka Kolada
- Department of Freshwater Protection, Institute of Environmental Protection‒National Research Institute, Krucza 5/11D, 00-548, Warsaw, Poland
| | - Sarian Kosten
- Department of Aquatic Ecology and Environmental Biology, Institute for Water and Wetland Research, Radboud University, Heyendaalseweg 135, 6525AJ, Nijmegen, The Netherlands
| | - Torben Lauridsen
- Department of Bioscience, Aarhus University, Vejsøvej 25, 8600, Silkeborg, Denmark
| | - Balázs A Lukács
- Department of Tisza River Research, MTA Centre for Ecological Research, Bem tér 18/C, Debrecen, 4026, Hungary
| | - Marit Mjelde
- Norwegian Institute for Water Research (NIVA), Gaustadalléen 21, 0349, Oslo, Norway
| | - Roger P Mormul
- Department of Biology, Research Group in Limnology, Ichthyology and Aquaculture-Nupélia, State University of Maringá, Av. Colombo 5790, Bloco H90, CEP-87020-900, Mringá, PR, Brazil
| | - Laila Rhazi
- Laboratory of Botany, Mycology and Environment, Faculty of Sciences, Mohammed V University in Rabat, 4 avenue Ibn Battouta, B.P. 1014 RP, Rabat, Morocco
| | - Mouhssine Rhazi
- Faculty of Science and Technology, Department of Biology, Moulay Ismail University, PB 509, Boutalamine, Errachidia, Morocco
| | - Laura Sass
- Illinois Natural History Survey, Prairie Research Institute, University of Illinois, 1816 South Oak Street, Champaign, IL, 61820, USA
| | - Martin Søndergaard
- Department of Bioscience, Aarhus University, Vejsøvej 25, 8600, Silkeborg, Denmark
| | - Jun Xu
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430070, China
| | - Jani Heino
- Finnish Environment Institute, Biodiversity Centre, P.O. Box 413, 90014, Oulu, Finland
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142
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Zinger L, Taberlet P, Schimann H, Bonin A, Boyer F, De Barba M, Gaucher P, Gielly L, Giguet‐Covex C, Iribar A, Réjou‐Méchain M, Rayé G, Rioux D, Schilling V, Tymen B, Viers J, Zouiten C, Thuiller W, Coissac E, Chave J. Body size determines soil community assembly in a tropical forest. Mol Ecol 2018; 28:528-543. [DOI: 10.1111/mec.14919] [Citation(s) in RCA: 90] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Revised: 10/02/2018] [Accepted: 10/14/2018] [Indexed: 01/02/2023]
Affiliation(s)
- Lucie Zinger
- CNRS, IRDUMR 5174 Evolution et Diversité Biologique (EDB)Université Toulouse 3 Paul Sabatier Toulouse France
| | - Pierre Taberlet
- CNRSLaboratoire d'Ecologie Alpine (LECA)Univ. Grenoble Alpes Grenoble France
| | - Heidy Schimann
- UMR Ecologie des Forets de Guyane (AgroParisTech, CIRAD, CNRS, Université des Antilles, Université de la Guyane)INRA Kourou France
| | - Aurélie Bonin
- CNRSLaboratoire d'Ecologie Alpine (LECA)Univ. Grenoble Alpes Grenoble France
| | - Frédéric Boyer
- CNRSLaboratoire d'Ecologie Alpine (LECA)Univ. Grenoble Alpes Grenoble France
| | - Marta De Barba
- CNRSLaboratoire d'Ecologie Alpine (LECA)Univ. Grenoble Alpes Grenoble France
| | - Philippe Gaucher
- USR 3456CNRSCentre de recherche de Montabo IRDCNRS‐Guyane Cayenne France
| | - Ludovic Gielly
- CNRSLaboratoire d'Ecologie Alpine (LECA)Univ. Grenoble Alpes Grenoble France
| | | | - Amaia Iribar
- CNRS, IRDUMR 5174 Evolution et Diversité Biologique (EDB)Université Toulouse 3 Paul Sabatier Toulouse France
| | - Maxime Réjou‐Méchain
- CNRS, IRDUMR 5174 Evolution et Diversité Biologique (EDB)Université Toulouse 3 Paul Sabatier Toulouse France
- UMR AMAP, IRD Montpellier France
| | - Gilles Rayé
- CNRSLaboratoire d'Ecologie Alpine (LECA)Univ. Grenoble Alpes Grenoble France
| | - Delphine Rioux
- CNRSLaboratoire d'Ecologie Alpine (LECA)Univ. Grenoble Alpes Grenoble France
| | - Vincent Schilling
- CNRS, IRDUMR 5174 Evolution et Diversité Biologique (EDB)Université Toulouse 3 Paul Sabatier Toulouse France
| | - Blaise Tymen
- CNRS, IRDUMR 5174 Evolution et Diversité Biologique (EDB)Université Toulouse 3 Paul Sabatier Toulouse France
| | - Jérôme Viers
- CNRS, IRDUMR 5563 GETUniversité Toulouse 3 Paul Sabatier Toulouse France
| | - Cyril Zouiten
- CNRS, IRDUMR 5563 GETUniversité Toulouse 3 Paul Sabatier Toulouse France
| | - Wilfried Thuiller
- CNRSLaboratoire d'Ecologie Alpine (LECA)Univ. Grenoble Alpes Grenoble France
| | - Eric Coissac
- CNRSLaboratoire d'Ecologie Alpine (LECA)Univ. Grenoble Alpes Grenoble France
| | - Jérôme Chave
- CNRS, IRDUMR 5174 Evolution et Diversité Biologique (EDB)Université Toulouse 3 Paul Sabatier Toulouse France
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143
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Phylogeography of freshwater planorbid snails reveals diversification patterns in Eurasian continental islands. BMC Evol Biol 2018; 18:164. [PMID: 30400816 PMCID: PMC6219199 DOI: 10.1186/s12862-018-1273-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Accepted: 10/08/2018] [Indexed: 01/19/2023] Open
Abstract
Background Islands have traditionally been the centre of evolutionary biological research, but the dynamics of immigration and differentiation at continental islands have not been well studied. Therefore, we focused on the Japanese archipelago, the continental islands located at the eastern end of the Eurasian continent. While the Japanese archipelago is characterised by high biodiversity and rich freshwater habitats, the origin and formation mechanisms of its freshwater organisms are not clear. In order to clarify the history of the planorbid gastropod fauna, we conducted phylogenetic analysis, divergence time estimation, ancestral state reconstruction, and lineage diversity estimations. Results Our analyses revealed the formation process of the planorbid fauna in the Japanese archipelago. Most lineages in the Japanese archipelago have closely related lineages on the continent, and the divergence within the Japanese lineages presumably occurred after the late Pliocene. In addition, each lineage is characterised by different phylogeographical patterns, suggesting that immigration routes from the continent to the Japanese archipelago differ among lineages. Furthermore, a regional lineage diversity plot showed that the present diversity in the Japanese archipelago potentially reflects the differentiation of lineages within the islands after the development of the Japanese archipelago. Conclusions Although additional taxon sampling and genetic analysis focused on each lineage are needed, our results suggest that immigration from multiple routes just prior to the development of the Japanese archipelago and subsequent diversification within the islands are major causes of the present-day diversity of the Japanese planorbid fauna. Electronic supplementary material The online version of this article (10.1186/s12862-018-1273-3) contains supplementary material, which is available to authorized users.
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144
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Varzinczak LH, Moura MO, Lima CS, Passos FC. How do bat, rodent, and marsupial communities respond to spatial and environmental gradients? Insights from a deconstruction of mammal beta diversity from the Atlantic Forest of South America. Oecologia 2018; 189:851-861. [PMID: 30382388 DOI: 10.1007/s00442-018-4288-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2018] [Accepted: 10/22/2018] [Indexed: 11/26/2022]
Abstract
Space and environment are fundamental in influencing the community structure. However, their relative influences vary according to species' biological characteristics. Here we test whether differences in life-history traits mainly linked to dispersal abilities influence bat, rodent and marsupial beta diversity along spatial and environmental gradients. We expect bat beta diversity to be weakly related with space in comparison to dispersal-limited rodents and marsupials. Using data from communities distributed along the Atlantic Forest of South America, we calculated the total beta diversity and its turnover and nestedness components for each group. We estimated the strength of correlation of beta diversity and its components along spatial and environmental gradients, comparing their importance within and between groups. Space had the higher influence on rodent and marsupial beta diversity. For bats, both gradients influenced similarly their community composition. Between taxa, the influence of these gradients did not differ for rodents and marsupials, while bats presented a stronger relationship with environment compared to non-volant small mammals. Also, all groups presented a similar influence of the spatial gradients on their community structure, despite their differences in dispersal abilities. Our results suggest that differences in biological characteristics partially influence the community structure of these mammals, with their responses along space likely reflecting similar biogeographical dynamics affecting their distribution. Overall, our results improve the understanding of the processes structuring these communities, highlighting the benefits of comparative analyses within a beta diversity perspective to better understand the influence of multiple processes on the community assembly along geographical gradients.
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Affiliation(s)
- Luiz H Varzinczak
- Programa de Pós-Graduação em Ecologia e Conservação, Universidade Federal do Paraná, Curitiba, 81531-990, Brazil.
- Departamento de Zoologia, Universidade Federal do Paraná, Curitiba, 81531-990, Brazil.
| | - Mauricio O Moura
- Programa de Pós-Graduação em Ecologia e Conservação, Universidade Federal do Paraná, Curitiba, 81531-990, Brazil
- Departamento de Zoologia, Universidade Federal do Paraná, Curitiba, 81531-990, Brazil
| | - Camila S Lima
- Programa de Pós-Graduação em Ecologia e Conservação, Universidade Federal do Paraná, Curitiba, 81531-990, Brazil
- Departamento de Zoologia, Universidade Federal do Paraná, Curitiba, 81531-990, Brazil
| | - Fernando C Passos
- Programa de Pós-Graduação em Ecologia e Conservação, Universidade Federal do Paraná, Curitiba, 81531-990, Brazil
- Departamento de Zoologia, Universidade Federal do Paraná, Curitiba, 81531-990, Brazil
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145
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Földi A, Ács É, Grigorszky I, Ector L, Wetzel CE, Várbíró G, Kiss KT, Dobosy P, Trábert Z, Borsodi AK, Duleba M. Unexpected consequences of bombing. Community level response of epiphytic diatoms to environmental stress in a saline bomb crater pond area. PLoS One 2018; 13:e0205343. [PMID: 30359367 PMCID: PMC6201898 DOI: 10.1371/journal.pone.0205343] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Accepted: 09/24/2018] [Indexed: 11/28/2022] Open
Abstract
The spatial response of epiphytic diatom communities to environmental stress was studied in a moderately saline wetland area located in the plain of Danube-Tisza Interfluve, Hungary. The area is characterised by World War II bomb crater ponds and can be regarded as an excellent ecological model system where the dispersion of species is slightly limited by distance. To study the effect of environmental variables on the communities, canonical correspondence analysis was applied. Salinity, pH, total suspended solids, total phosphorous and depth proved to be significant environmental drivers in this analysis. The ecological status of the ponds was assessed with Ziemann’s halobity index, as the trophity-depending metric cannot be applied to these habitats (due to the naturally high phosphorus content). Ponds in “good” ecological status significantly differed from those appertaining to water quality category of “not-good” ecological status considering characteristic of natural astatic soda pans (e.g. salinity, pH, ammonium, total phosphorous concentration, nitrogen:phosphorous ratio and turbidity). The differences between epiphytic diatom communities inhabiting the ponds were detected using non-parametric multidimensional scaling. The samples formed three groups according to the types of ponds (“transparent”, “transitional” and “turbid”) based on the width of the macrophyte belt around them. Indicator species related to the ecological status of the ponds and diatom communities contributing to the separation of groups of ponds were identified. One of the indicator species differed from species already described. Light and scanning electron microscopy features and phylogenetic analyses based on three genes (18S and 28S rRNA genes, rbcL) proved that it was a new species of Nitzschia genus, closely related to Nitzschia frustulum and Nitzschia inconspicua. Therefore, description of a new species, Nitzschia reskoi Ács, Duleba, C.E.Wetzel & Ector is proposed. We concluded that the increasing abundance of Nitzschia reskoi was a signal of the degradation of the intermittent saline wetlands.
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Affiliation(s)
- Angéla Földi
- MTA Centre for Ecological Research, Sustainable Ecosystems Group, Tihany, Hungary
- Doctoral School of Environmental Sciences, Eötvös Loránd University, Budapest, Hungary
| | - Éva Ács
- MTA Centre for Ecological Research, Danube Research Institute, Budapest, Hungary
| | - István Grigorszky
- MTA Centre for Ecological Research, Danube Research Institute, Budapest, Hungary
- University of Debrecen, Department of Hydrobiology, Debrecen, Hungary
| | - Luc Ector
- Environmental Research and Innovation Department (ERIN), Luxembourg Institute of Science and Technology (LIST), Belvaux, Luxembourg
| | - Carlos Eduardo Wetzel
- Environmental Research and Innovation Department (ERIN), Luxembourg Institute of Science and Technology (LIST), Belvaux, Luxembourg
| | - Gábor Várbíró
- MTA Centre for Ecological Research, Sustainable Ecosystems Group, Tihany, Hungary
- MTA Centre for Ecological Research, Danube Research Institute, Department of Tisza River Research, Debrecen, Hungary
| | - Keve Tihamér Kiss
- MTA Centre for Ecological Research, Danube Research Institute, Budapest, Hungary
| | - Péter Dobosy
- MTA Centre for Ecological Research, Danube Research Institute, Budapest, Hungary
| | - Zsuzsa Trábert
- MTA Centre for Ecological Research, Danube Research Institute, Budapest, Hungary
| | - Andrea K. Borsodi
- MTA Centre for Ecological Research, Danube Research Institute, Budapest, Hungary
- Eötvös Loránd University, Department of Microbiology, Budapest, Hungary
| | - Mónika Duleba
- MTA Centre for Ecological Research, Danube Research Institute, Budapest, Hungary
- * E-mail:
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146
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Zhang H, Huang X, Huang L, Bao F, Xiong S, Wang K, Zhang D. Microeukaryotic biogeography in the typical subtropical coastal waters with multiple environmental gradients. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 635:618-628. [PMID: 29679834 DOI: 10.1016/j.scitotenv.2018.04.142] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Revised: 03/11/2018] [Accepted: 04/09/2018] [Indexed: 06/08/2023]
Abstract
The determinants of microeukaryotic biogeography in coastal waters at a regional scale remain largely unclear. The coastal northern Zhejiang (in the East China Sea) is a typical subtropical marine ecosystem with multiple environmental gradients that has been extensively perturbed by anthropogenic activities. Thus, it is a valuable region to investigate the key drivers that shape microbial biogeography. We investigated microeukaryotic communities in surface waters from 115 stations in this region using 18S ribosomal RNA gene amplicon sequencing. The microeukaryotic communities were mainly comprised of Dinoflagellata, Ciliophora, Protalveolata, Rhizaria, Stramenopiles and Cryptophyceae. The top abundant operational taxonomic units (OTUs) were highly specific for distinct habitat types, exhibiting significant environment-conditioned features; however, the cosmopolitan OTUs were not strongly correlated with the measured environmental variables. Total phosphorus and suspended particles were major environmental determinants of microeukaryotic α-diversity. Environmental variables, particularly temperature, salinity, pH and silicate concentration, were strongly associated with the microeukaryotic community composition. Overall, environmental and spatial factors explained 55.92% of community variation in total with 34.03% of the variation shared, suggesting that spatially structured environmental variations mainly conditioned the microeukaryotic biogeography in this region. Additionally, dispersal limitation, as indicated by the great pure spatial effect and distance-decay pattern, was another important factor. In summary, our results reveal that spatially structured environmental variation and dispersal limitation mainly conditioned the microeukaryotic biogeography. The results may provide useful distribution patterns of microeukaryotes to determine sources of microbes from marine ecosystems that may facilitate the utilization of coastal resources.
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Affiliation(s)
- Huajun Zhang
- School of Marine Sciences, Ningbo University, Ningbo 315211, China
| | - Xiaolin Huang
- School of Marine Sciences, Ningbo University, Ningbo 315211, China; Zhejiang Mariculture Research Institute, Wenzhou 325005, China
| | - Lei Huang
- School of Marine Sciences, Ningbo University, Ningbo 315211, China
| | - Fangjian Bao
- School of Marine Sciences, Ningbo University, Ningbo 315211, China
| | - Shangling Xiong
- School of Marine Sciences, Ningbo University, Ningbo 315211, China; College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo 315000, China
| | - Kai Wang
- School of Marine Sciences, Ningbo University, Ningbo 315211, China; Collaborative Innovation Center for Zhejiang Marine High-Efficiency and Healthy Aquaculture, Ningbo 315211, China.
| | - Demin Zhang
- School of Marine Sciences, Ningbo University, Ningbo 315211, China; Collaborative Innovation Center for Zhejiang Marine High-Efficiency and Healthy Aquaculture, Ningbo 315211, China.
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147
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Tornero I, Boix D, Bagella S, Pinto-Cruz C, Caria MC, Belo A, Lumbreras A, Sala J, Compte J, Gascón S. Dispersal mode and spatial extent influence distance-decay patterns in pond metacommunities. PLoS One 2018; 13:e0203119. [PMID: 30153308 PMCID: PMC6112654 DOI: 10.1371/journal.pone.0203119] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Accepted: 08/10/2018] [Indexed: 11/18/2022] Open
Abstract
Assuming that dispersal modes or abilities can explain the different responses of organisms to geographic or environmental distances, the distance-decay relationship is a useful tool to evaluate the relative role of local environmental structuring versus regional control in community composition. Based on continuing the current theoretical framework on metacommunity dynamics and based on the predictive effect of distance on community similarity, we proposed a new framework that includes the effect of spatial extent. In addition, we tested the validity of our proposal by studying the community similarity among three biotic groups with different dispersal modes (macrofaunal active and passive dispersers and plants) from two pond networks, where one network had a small spatial extent, and the other network had an extent that was 4 times larger. Both pond networks have similar environmental variability. Overall, we found that environmental distance had larger effects than geographical distances in both pond networks. Moreover, our results suggested that species sorting is the main type of metacommunity dynamics shaping all biotic groups when the spatial extent is larger. In contrast, when the spatial extent is smaller, the observed distance-decay patterns suggested that different biotic groups were mainly governed by different metacommunity dynamics. While the distance-decay patterns of active dispersers better fit the trend that was expected when mass effects govern a metacommunity, passive dispersers showed a pattern that was expected when species sorting prevails. Finally, in the case of plants, it is difficult to associate their distance-decay patterns with one type of metacommunity dynamics.
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Affiliation(s)
- Irene Tornero
- GRECO, Institute of Aquatic Ecology, University of Girona, Girona, Spain
- * E-mail:
| | - Dani Boix
- GRECO, Institute of Aquatic Ecology, University of Girona, Girona, Spain
| | - Simonetta Bagella
- Department of Chemistry and Pharmacy, University of Sassari, Sassari, Italy
| | - Carla Pinto-Cruz
- Departamento de Biologia, Escola de Ciências e Tecnologia, ICAAM - Instituto Ciências Agrárias e Ambientais Mediterrânicas, Universidade de Évora, Évora, Portugal
| | | | - Anabela Belo
- Departamento de Biologia, Escola de Ciências e Tecnologia, ICAAM - Instituto Ciências Agrárias e Ambientais Mediterrânicas, Universidade de Évora, Évora, Portugal
| | - Ana Lumbreras
- ICAAM - Instituto Ciências Agrárias e Ambientais Mediterrânicas, Universidade de Évora, Évora, Portugal
| | - Jordi Sala
- GRECO, Institute of Aquatic Ecology, University of Girona, Girona, Spain
| | - Jordi Compte
- GRECO, Institute of Aquatic Ecology, University of Girona, Girona, Spain
| | - Stéphanie Gascón
- GRECO, Institute of Aquatic Ecology, University of Girona, Girona, Spain
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148
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Ohlmann M, Mazel F, Chalmandrier L, Bec S, Coissac E, Gielly L, Pansu J, Schilling V, Taberlet P, Zinger L, Chave J, Thuiller W. Mapping the imprint of biotic interactions on β-diversity. Ecol Lett 2018; 21:1660-1669. [DOI: 10.1111/ele.13143] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 04/01/2018] [Accepted: 07/25/2018] [Indexed: 01/23/2023]
Affiliation(s)
- Marc Ohlmann
- University Grenoble Alpes; CNRS; Univ. Savoie Mont Blanc; CNRS; LECA; Laboratoire d’Écologie Alpine F-38000 Grenoble France
| | - Florent Mazel
- Department of Botany and Biodiversity Research Centre; University of British Columbia; Vancouver BC V6T 1Z4 Canada
| | - Loïc Chalmandrier
- Landscape Ecology; Institute of Terrestrial Ecosystems; ETH Zürich; Zürich Switzerland
- Swiss Federal Research Institute WSL; 8903 Birmensdorf Switzerland
| | - Stéphane Bec
- University Grenoble Alpes; CNRS; Univ. Savoie Mont Blanc; CNRS; LECA; Laboratoire d’Écologie Alpine F-38000 Grenoble France
| | - Eric Coissac
- University Grenoble Alpes; CNRS; Univ. Savoie Mont Blanc; CNRS; LECA; Laboratoire d’Écologie Alpine F-38000 Grenoble France
| | - Ludovic Gielly
- University Grenoble Alpes; CNRS; Univ. Savoie Mont Blanc; CNRS; LECA; Laboratoire d’Écologie Alpine F-38000 Grenoble France
| | - Johan Pansu
- Princeton University; 110 Morrison Hall Princeton NJ 08544 USA
| | - Vincent Schilling
- Université Toulouse 3 Paul Sabatier; CNRS; IRD; UMR 5174 Evolution et Diversité Biologique (EDB); F-31062 Toulouse France
| | - Pierre Taberlet
- University Grenoble Alpes; CNRS; Univ. Savoie Mont Blanc; CNRS; LECA; Laboratoire d’Écologie Alpine F-38000 Grenoble France
| | - Lucie Zinger
- Ecole Normale Supérieure; PSL Research University; CNRS; Inserm; Institut de Biologie de l'Ecole Normale Supérieure (IBENS); F-75005 Paris France
| | - Jérome Chave
- Université Toulouse 3 Paul Sabatier; CNRS; IRD; UMR 5174 Evolution et Diversité Biologique (EDB); F-31062 Toulouse France
| | - Wilfried Thuiller
- University Grenoble Alpes; CNRS; Univ. Savoie Mont Blanc; CNRS; LECA; Laboratoire d’Écologie Alpine F-38000 Grenoble France
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149
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Antiqueira PAP, Petchey OL, Dos Santos VP, de Oliveira VM, Romero GQ. Environmental change and predator diversity drive alpha and beta diversity in freshwater macro and microorganisms. GLOBAL CHANGE BIOLOGY 2018; 24:3715-3728. [PMID: 29772087 DOI: 10.1111/gcb.14314] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Revised: 03/23/2018] [Accepted: 04/28/2018] [Indexed: 06/08/2023]
Abstract
Global biodiversity is eroding due to anthropogenic causes, such as climate change, habitat loss, and trophic simplification of biological communities. Most studies address only isolated causes within a single group of organisms; however, biological groups of different trophic levels may respond in particular ways to different environmental impacts. Our study used natural microcosms to investigate the predicted individual and interactive effects of warming, changes in top predator diversity, and habitat size on the alpha and beta diversity of macrofauna, microfauna, and bacteria. Alpha diversity (i.e., richness within each bromeliad) generally explained a larger proportion of the gamma diversity (partitioned in alpha and beta diversity). Overall, dissimilarity between communities occurred due to species turnover and not species loss (nestedness). Nevertheless, the three biological groups responded differently to each environmental stressor. Microfauna were the most sensitive group, with alpha and beta diversity being affected by environmental changes (warming and habitat size) and trophic structure (diversity of top predators). Macrofauna alpha and beta diversity was sensitive to changes in predator diversity and habitat size, but not warming. In contrast, the bacterial community was not influenced by the treatments. The community of each biological group was not mutually concordant with the environmental and trophic changes. Our results demonstrate that distinct anthropogenic impacts differentially affect the components of macro and microorganism diversity through direct and indirect effects (i.e., bottom-up and top-down effects). Therefore, a multitrophic and multispecies approach is necessary to assess the effects of different anthropogenic impacts on biodiversity.
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Affiliation(s)
- Pablo Augusto P Antiqueira
- Programa de Pós-Graduação em Ecologia, Instituto de Biologia (IB), Universidade Estadual de Campinas (UNICAMP), Campinas, Brazil
- Laboratory of Multitrophic Interactions and Biodiversity, Institute of Biology, University of Campinas, Campinas, SP, Brazil
| | - Owen L Petchey
- Department for Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland
| | - Viviane Piccin Dos Santos
- Research Center for Chemistry, Biology and Agriculture (CPQBA), University of Campinas, Paulínia, SP, Brazil
| | - Valéria Maia de Oliveira
- Research Center for Chemistry, Biology and Agriculture (CPQBA), University of Campinas, Paulínia, SP, Brazil
| | - Gustavo Quevedo Romero
- Laboratory of Multitrophic Interactions and Biodiversity, Institute of Biology, University of Campinas, Campinas, SP, Brazil
- Departamento de Biologia Animal, Instituto de Biologia (IB), Universidade Estadual de Campinas (UNICAMP), Campinas, Brazil
- Brazilian Research Network on Climate Change (Rede Clima), São Paulo, Brazil
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150
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Benito X, Fritz SC, Steinitz‐Kannan M, Vélez MI, McGlue MM. Lake regionalization and diatom metacommunity structuring in tropical South America. Ecol Evol 2018; 8:7865-7878. [PMID: 30250669 PMCID: PMC6145031 DOI: 10.1002/ece3.4305] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2018] [Revised: 05/16/2018] [Accepted: 05/23/2018] [Indexed: 12/27/2022] Open
Abstract
Lakes and their topological distribution across Earth's surface impose ecological and evolutionary constraints on aquatic metacommunities. In this study, we group similar lake ecosystems as metacommunity units influencing diatom community structure. We assembled a database of 195 lakes from the tropical Andes and adjacent lowlands (8°N-30°S and 58-79°W) with associated environmental predictors to examine diatom metacommunity patterns at two different levels: taxon and functional (deconstructed species matrix by ecological guilds). We also derived spatial variables that inherently assessed the relative role of dispersal. Using complementary multivariate statistical techniques (principal component analysis, cluster analysis, nonmetric multidimensional scaling, Procrustes, variance partitioning), we examined diatom-environment relationships among different lake habitats (sediment surface, periphyton, and plankton) and partitioned community variation to evaluate the influence of niche- and dispersal-based assembly processes in diatom metacommunity structure across lake clusters. The results showed a significant association between geographic clusters of lakes based on gradients of climate and landscape configuration and diatom assemblages. Six lake clusters distributed along a latitudinal gradient were identified as functional metacommunity units for diatom communities. Variance partitioning revealed that dispersal mechanisms were a major contributor to diatom metacommunity structure, but in a highly context-dependent fashion across lake clusters. In the Andean Altiplano and adjacent lowlands of Bolivia, diatom metacommunities are niche assembled but constrained by either dispersal limitation or mass effects, resulting from area, environmental heterogeneity, and ecological guild relationships. Topographic heterogeneity played an important role in structuring planktic diatom metacommunities. We emphasize the value of a guild-based metacommunity model linked to dispersal for elucidating mechanisms underlying latitudinal gradients in distribution. Our findings reveal the importance of shifts in ecological drivers across climatic and physiographically distinct lake clusters, providing a basis for comparison of broad-scale community gradients in lake-rich regions elsewhere. This may help guide future research to explore evolutionary constraints on the rich Neotropical benthic diatom species pool.
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Affiliation(s)
- Xavier Benito
- Department of Earth and Atmospheric Sciences and School of Biological SciencesUniversity of Nebraska–LincolnLincolnNebraska
| | - Sherilyn C. Fritz
- Department of Earth and Atmospheric Sciences and School of Biological SciencesUniversity of Nebraska–LincolnLincolnNebraska
| | | | | | - Michael M. McGlue
- Department of Earth and Environmental SciencesUniversity of KentuckyLexingtonKentucky
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