气候变化领域集成服务门户(CCPortal): Fast behavioral feedbacks make ecosystems sensitive to pace and not just magnitude of anthropogenic environmental change

CCPortal

DOI	10.1073/pnas.2003301117
	Fast behavioral feedbacks make ecosystems sensitive to pace and not just magnitude of anthropogenic environmental change
	Gil M.A.; Baskett M.L.; Munch S.B.; Hein A.M.
发表日期	2020
ISSN	0027-8424
起始页码	25580
结束页码	25589
卷号	117 期号:41
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.
英文关键词	Allee effect; Animal decision making; Functional response; Hysteresis; Transient dynamics
语种	英语
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
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/160770
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 Stat...
推荐引用方式 GB/T 7714	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],2020,117(41).
APA	Gil M.A.,Baskett M.L.,Munch S.B.,&Hein A.M..(2020).Fast behavioral feedbacks make ecosystems sensitive to pace and not just magnitude of anthropogenic environmental change.Proceedings of the National Academy of Sciences of the United States of America,117(41).
MLA	Gil M.A.,et al."Fast behavioral feedbacks make ecosystems sensitive to pace and not just magnitude of anthropogenic environmental change".Proceedings of the National Academy of Sciences of the United States of America 117.41(2020).