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      Fishing, environment, and the erosion of a population portfolio

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          Metapopulation dynamics

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            The metacommunity concept: a framework for multi-scale community ecology

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              Structural asymmetry and the stability of diverse food webs.

              Untangling the influence of human activities on food-web stability and persistence is complex given the large numbers of species and overwhelming number of interactions within ecosystems. Although biodiversity has been associated with stability, the actual structures and processes that confer stability to diverse food webs remain largely unknown. Here we show that real food webs are structured such that top predators act as couplers of distinct energy channels that differ in both productivity and turnover rate. Our theoretical analysis shows that coupled fast and slow channels convey both local and non-local stability to food webs. Alarmingly, the same human actions that have been implicated in the loss of biodiversity also directly erode the very structures and processes that we show to confer stability on food webs.
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                Author and article information

                Contributors
                (View ORCID Profile)
                Journal
                Ecosphere
                Ecosphere
                Wiley
                2150-8925
                2150-8925
                November 2020
                December 06 2020
                November 2020
                : 11
                : 11
                Affiliations
                [1 ]Department of Ecology, Evolution, and Marine Biology University of California Santa Barbara Santa Barbara California93101USA
                [2 ]National Center for Ecological Analysis and Synthesis 735 State Street Santa Barbara California93101USA
                [3 ]Conservation Biology Division Northwest Fisheries Science Center National Marine Fisheries Service National Oceanic & Atmospheric Administration Seattle Washington98112USA
                [4 ]School of Environmental and Forest Sciences University of Washington Box 355020 Seattle Washington98195USA
                [5 ]The Nature Conservancy 74 Wall Street Seattle Washington USA
                Article
                10.1002/ecs2.3283
                86e48fba-fe4d-4abb-8b64-a3c2f51e8366
                © 2020

                http://creativecommons.org/licenses/by/4.0/

                http://doi.wiley.com/10.1002/tdm_license_1.1


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