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Jacquet C, Carraro L, Altermatt F. Meta‐ecosystem dynamics drive the spatial distribution of functional groups in river networks. OIKOS 2022. [DOI: 10.1111/oik.09372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Claire Jacquet
- Dept of Aquatic Ecology, Swiss Federal Inst. of Aquatic Science and Technology Eawag Dübendorf Switzerland
- Dept of Evolutionary Biology and Environmental Studies, Univ. of Zurich Zürich Switzerland
| | - Luca Carraro
- Dept of Aquatic Ecology, Swiss Federal Inst. of Aquatic Science and Technology Eawag Dübendorf Switzerland
- Dept of Evolutionary Biology and Environmental Studies, Univ. of Zurich Zürich Switzerland
| | - Florian Altermatt
- Dept of Aquatic Ecology, Swiss Federal Inst. of Aquatic Science and Technology Eawag Dübendorf Switzerland
- Dept of Evolutionary Biology and Environmental Studies, Univ. of Zurich Zürich Switzerland
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Little CJ, Rizzuto M, Luhring TM, Monk JD, Nowicki RJ, Paseka RE, Stegen JC, Symons CC, Taub FB, Yen JDL. Movement with meaning: integrating information into meta‐ecology. OIKOS 2022. [DOI: 10.1111/oik.08892] [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)
- Chelsea J. Little
- Biodiversity Research Centre, Univ. of British Columbia Vancouver BC Canada
- School of Environmental Science, Simon Fraser Univ. Burnaby BC Canada
| | - Matteo Rizzuto
- Dept of Biology, Memorial Univ. of Newfoundland St. John's NL Canada
| | | | - Julia D. Monk
- School of the Environment, Yale Univ. New Haven CT USA
| | - Robert J. Nowicki
- Elizabeth Moore International Center for Coral Reef Research and Restoration, Mote Marine Laboratory Summerland Key FL USA
| | - Rachel E. Paseka
- Dept of Ecology, Evolution and Behavior, Univ. of Minnesota Saint Paul MN USA
| | | | - Celia C. Symons
- Dept of Ecology and Evolutionary Biology, Univ. of California Irvine CA USA
| | - Frieda B. Taub
- School of Aquatic and Fishery Sciences, Univ. of Washington Seattle WA USA
| | - Jian D. L. Yen
- School of BioSciences, Univ. of Melbourne, Melbourne, Australia, and Arthur Rylah Inst. for Environmental Reserach Heidelberg Victoria Australia
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Fuster M, Billard H, Mandart M, Steiger J, Sime-Ngando T, Colombet J. Trophic Conditions Influence Widespread Distribution of Aster-Like Nanoparticles Within Aquatic Environments. MICROBIAL ECOLOGY 2020; 80:741-745. [PMID: 32556417 DOI: 10.1007/s00248-020-01541-6] [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: 01/27/2020] [Accepted: 06/09/2020] [Indexed: 06/11/2023]
Abstract
Aster-like nanoparticles (ALNs) are newly described femto-entities. Their ecology (e.g., geographic distribution, spatial dynamic, preferences, forcing factors) is still unknown. Here, we report that these entities, which have largely been ignored until now, can develop or maintain themselves in most aquatic environments in the Loire River catchment, France. We observed a significant influence of the trophic state on ALN ecological distributions. A positive relationship between prokaryotic abundance and ALN (r2 = 0.72, p < 0.01) has been identified, but its exact nature remains to be clarified. Combined with their ubiquitous distribution and high abundances (up to 7.9 × 106 ALNs mL-1) recorded in our samples, this probably makes ALNs an overlooked functional component in aquatic ecosystems.
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Affiliation(s)
- Maxime Fuster
- Université Clermont Auvergne, CNRS, Laboratoire Microorganismes : Genome, Environnement (LMGE), 63000, Clermont-Ferrand, France
| | - Hermine Billard
- Université Clermont Auvergne, CNRS, Laboratoire Microorganismes : Genome, Environnement (LMGE), 63000, Clermont-Ferrand, France
| | - Marie Mandart
- Université Clermont Auvergne, CNRS, Laboratoire Microorganismes : Genome, Environnement (LMGE), 63000, Clermont-Ferrand, France
| | - Johannes Steiger
- Université Clermont Auvergne, CNRS, GEOLAB, 63000, Clermont-Ferrand, France
| | - Télesphore Sime-Ngando
- Université Clermont Auvergne, CNRS, Laboratoire Microorganismes : Genome, Environnement (LMGE), 63000, Clermont-Ferrand, France
| | - Jonathan Colombet
- Université Clermont Auvergne, CNRS, Laboratoire Microorganismes : Genome, Environnement (LMGE), 63000, Clermont-Ferrand, France.
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Harvey E, Gounand I, Fronhofer EA, Altermatt F. Metaecosystem dynamics drive community composition in experimental, multi‐layered spatial networks. OIKOS 2019. [DOI: 10.1111/oik.07037] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Eric Harvey
- Dept of Evolutionary Biology and Environmental Studies, Univ. of Zurich Winterthurerstrasse 190 CH‐8057 Zürich Switzerland
- Eawag, Swiss Federal Inst. of Aquatic Science and Technology, Dept of Aquatic Ecology Überlandstrasse 133 CH‐8600 Dübendorf Switzerland
- Dépt de Sciences Biologiques, Univ. de Montréal Canada
| | - Isabelle Gounand
- Dept of Evolutionary Biology and Environmental Studies, Univ. of Zurich Winterthurerstrasse 190 CH‐8057 Zürich Switzerland
- Eawag, Swiss Federal Inst. of Aquatic Science and Technology, Dept of Aquatic Ecology Überlandstrasse 133 CH‐8600 Dübendorf Switzerland
| | - Emanuel A. Fronhofer
- Dept of Evolutionary Biology and Environmental Studies, Univ. of Zurich Winterthurerstrasse 190 CH‐8057 Zürich Switzerland
- Eawag, Swiss Federal Inst. of Aquatic Science and Technology, Dept of Aquatic Ecology Überlandstrasse 133 CH‐8600 Dübendorf Switzerland
| | - Florian Altermatt
- Dept of Evolutionary Biology and Environmental Studies, Univ. of Zurich Winterthurerstrasse 190 CH‐8057 Zürich Switzerland
- Dépt de Sciences Biologiques, Univ. de Montréal Canada
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Massé Jodoin J, Guichard F. Non‐resource effects of foundation species on meta‐ecosystem stability and function. OIKOS 2019. [DOI: 10.1111/oik.06506] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Julien Massé Jodoin
- Dept of Biology, McGill Univ., 1205 Avenue du Docteur Penfield Montreal QC H3A 1B1 Canada
| | - Frédéric Guichard
- Dept of Biology, McGill Univ., 1205 Avenue du Docteur Penfield Montreal QC H3A 1B1 Canada
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6
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Cross-ecosystem carbon flows connecting ecosystems worldwide. Nat Commun 2018; 9:4825. [PMID: 30446663 PMCID: PMC6240079 DOI: 10.1038/s41467-018-07238-2] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 10/18/2018] [Indexed: 11/23/2022] Open
Abstract
Ecosystems are widely interconnected by spatial flows of material, but the overall importance of these flows relative to local ecosystem functioning remains unclear. Here we provide a quantitative synthesis on spatial flows of carbon connecting ecosystems worldwide. Cross-ecosystem flows range over eight orders of magnitude, bringing between 10−3 and 105 gC m−2 year−1 to recipient ecosystems. Magnitudes are similar to local fluxes in freshwater and benthic ecosystems, but two to three orders of magnitude lower in terrestrial systems, demonstrating different dependencies on spatial flows among ecosystem types. The strong spatial couplings also indicate that ecosystems are vulnerable to alterations of cross-ecosystem flows. Thus, a reconsideration of ecosystem functioning, including a spatial perspective, is urgently needed. Material flows between ecosystems, though the degree to which ecosystems are coupled is under investigation. Here Gounand et al. analyze cross-ecosystem carbon flows and relate them to in situ functions, and report different dependencies on spatial flows across numerous ecosystems.
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Santschi F, Gounand I, Harvey E, Altermatt F. Leaf litter diversity and structure of microbial decomposer communities modulate litter decomposition in aquatic systems. Funct Ecol 2017. [DOI: 10.1111/1365-2435.12980] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Fabienne Santschi
- Department of Aquatic EcologyEawag: Swiss Federal Institute of Aquatic Science and Technology Dübendorf Switzerland
- Department of Evolutionary Biology and Environmental StudiesUniversity of Zurich Zürich Switzerland
| | - Isabelle Gounand
- Department of Aquatic EcologyEawag: Swiss Federal Institute of Aquatic Science and Technology Dübendorf Switzerland
- Department of Evolutionary Biology and Environmental StudiesUniversity of Zurich Zürich Switzerland
| | - Eric Harvey
- Department of Aquatic EcologyEawag: Swiss Federal Institute of Aquatic Science and Technology Dübendorf Switzerland
- Department of Evolutionary Biology and Environmental StudiesUniversity of Zurich Zürich Switzerland
| | - Florian Altermatt
- Department of Aquatic EcologyEawag: Swiss Federal Institute of Aquatic Science and Technology Dübendorf Switzerland
- Department of Evolutionary Biology and Environmental StudiesUniversity of Zurich Zürich Switzerland
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Harvey E, Gounand I, Little CJ, Fronhofer EA, Altermatt F. Upstream trophic structure modulates downstream community dynamics via resource subsidies. Ecol Evol 2017; 7:5724-5731. [PMID: 29085622 PMCID: PMC5655794 DOI: 10.1002/ece3.3144] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Revised: 04/27/2017] [Accepted: 05/17/2017] [Indexed: 02/06/2023] Open
Abstract
In many natural systems, the physical structure of the landscape dictates the flow of resources. Despite mounting evidence that communities' dynamics can be indirectly coupled by reciprocal among ecosystem resource flows, our understanding of how directional resource flows might indirectly link biological communities is limited. We here propose that differences in community structure upstream should lead to different downstream dynamics, even in the absence of dispersal of organisms. We report an experimental test of the effect of upstream community structure on downstream community dynamics in a simplified but highly controlled setting, using protist microcosms. We implemented directional flows of resources, without dispersal, from a standard resource pool into upstream communities of contrasting interaction structure and then to further downstream communities of either one or two trophic levels. Our results demonstrate that different types of species interactions in upstream habitats may lead to different population sizes and levels of biomass in these upstream habitats. This, in turn, leads to varying levels of detritus transfer (dead biomass) to the downstream communities, thus influencing their population densities and trophic interactions in predictable ways. Our results suggest that the structure of species interactions in directionally structured ecosystems can be a key mediator of alterations to downstream habitats. Alterations to upstream habitats can thus cascade down to downstream communities, even without dispersal.
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Affiliation(s)
- Eric Harvey
- Department of Evolutionary Biology and Environmental Studies University of Zurich Zürich Switzerland.,Department of Aquatic Ecology Eawag, Swiss Federal Institute of Aquatic Science and Technology Dübendorf Switzerland
| | - Isabelle Gounand
- Department of Evolutionary Biology and Environmental Studies University of Zurich Zürich Switzerland.,Department of Aquatic Ecology Eawag, Swiss Federal Institute of Aquatic Science and Technology Dübendorf Switzerland
| | - Chelsea J Little
- Department of Evolutionary Biology and Environmental Studies University of Zurich Zürich Switzerland.,Department of Aquatic Ecology Eawag, Swiss Federal Institute of Aquatic Science and Technology Dübendorf Switzerland
| | - Emanuel A Fronhofer
- Department of Evolutionary Biology and Environmental Studies University of Zurich Zürich Switzerland.,Department of Aquatic Ecology Eawag, Swiss Federal Institute of Aquatic Science and Technology Dübendorf Switzerland
| | - Florian Altermatt
- Department of Evolutionary Biology and Environmental Studies University of Zurich Zürich Switzerland.,Department of Aquatic Ecology Eawag, Swiss Federal Institute of Aquatic Science and Technology Dübendorf Switzerland
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