globalchange  > 气候变化与战略
DOI: 10.1073/pnas.2003301117
论文题名:
Fast behavioral feedbacks make ecosystems sensitive to pace and not just magnitude of anthropogenic environmental change
作者: Gil M.A.; Baskett M.L.; Munch S.B.; Hein A.M.
刊名: Proceedings of the National Academy of Sciences of the United States of America
ISSN: 0027-8424
出版年: 2020
卷: 117, 期:41
起始页码: 25580
结束页码: 25589
语种: 英语
英文关键词: Allee effect ; Animal decision making ; Functional response ; Hysteresis ; Transient dynamics
Scopus关键词: algal growth ; Article ; behavioral feedback ; controlled study ; coral reef ; demography ; environmental change ; feedback system ; fishing ; foraging behavior ; herbivore ; human ; human impact (environment) ; marine environment ; nonhuman ; population density ; population dynamics ; priority journal ; species dominance ; animal ; Anthozoa ; biological model ; climate change ; coral reef ; ecosystem ; fish ; herbivory ; human activities ; physiological feedback ; physiology ; Animals ; Anthozoa ; Climate Change ; Coral Reefs ; Ecosystem ; Feedback, Physiological ; Fishes ; Herbivory ; Human Activities ; Humans ; Models, Biological
英文摘要: Anthropogenic environmental change is altering the behavior of animals in ecosystems around the world. Although behavior typically occurs on much faster timescales than demography, it can nevertheless influence demographic processes. Here, we use detailed data on behavior and empirical estimates of demography from a coral reef ecosystem to develop a coupled behavioral- demographic ecosystem model. Analysis of the model reveals that behavior and demography feed back on one another to determine how the ecosystem responds to anthropogenic forcing. In particular, an empirically observed feedback between the density and foraging behavior of herbivorous fish leads to alternative stable ecosystem states of coral population persistence or collapse (and complete algal dominance). This feedback makes the ecosystem more prone to coral collapse under fishing pressure but also more prone to recovery as fishing is reduced. Moreover, because of the behavioral feedback, the response of the ecosystem to changes in fishing pressure depends not only on the magnitude of changes in fishing but also on the pace at which changes are imposed. For example, quickly increasing fishing to a given level can collapse an ecosystem that would persist under more gradual change. Our results reveal conditions under which the pace and not just the magnitude of external forcing can dictate the response of ecosystems to environmental change. More generally, our multiscale behavioral-demographic framework demonstrates how highresolution behavioral data can be incorporated into ecological models to better understand how ecosystems will respond to perturbations. © 2020 National Academy of Sciences. All rights reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/164000
Appears in Collections:气候变化与战略

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作者单位: Gil, M.A., Department of Ecology and Evolutionary Biology, University of Colorado, Boulder, CO 80309, United States, Southwest Fisheries Science Center, National Oceanic and Atmospheric Administration, Santa Cruz, CA 95060, United States, Institute of Marine Sciences, University of California, Santa Cruz, CA 95060, United States; Baskett, M.L., Department of Environmental Science and Policy, University of California, Davis, CA 95616, United States, Center for Population Biology, University of California, Davis, CA 95616, United States; Munch, S.B., Southwest Fisheries Science Center, National Oceanic and Atmospheric Administration, Santa Cruz, CA 95060, United States, Department of Ecology and Evolutionary Biology, University of California, Santa Cruz, CA 95060, United States; Hein, A.M., Southwest Fisheries Science Center, National Oceanic and Atmospheric Administration, Santa Cruz, CA 95060, United States, Institute of Marine Sciences, University of California, Santa Cruz, CA 95060, United States, Department of Ecology and Evolutionary Biology, University of California, Santa Cruz, CA 95060, United States

Recommended Citation:
Gil M.A.,Baskett M.L.,Munch S.B.,et al. Fast behavioral feedbacks make ecosystems sensitive to pace and not just magnitude of anthropogenic environmental change[J]. Proceedings of the National Academy of Sciences of the United States of America,2020-01-01,117(41)
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