气候变化领域集成服务门户(CCPortal): Grazer behaviour can regulate large-scale patterning of community states

CCPortal

DOI	10.1111/ele.13828
	Grazer behaviour can regulate large-scale patterning of community states
	Karatayev V.A.; Baskett M.L.; Kushner D.J.; Shears N.T.; Caselle J.E.; Boettiger C.
发表日期	2021
ISSN	1461023X
起始页码	1917
结束页码	1929
卷号	24 期号:9
英文摘要	Ecosystem patterning can arise from environmental heterogeneity, biological feedbacks that produce multiple persistent ecological states, or their interaction. One source of feedbacks is density-dependent changes in behaviour that regulate species interactions. By fitting state-space models to large-scale (~500 km) surveys on temperate rocky reefs, we find that behavioural feedbacks best explain why kelp and urchin barrens form either reef-wide patches or local mosaics. Best-supported models in California include feedbacks where starvation intensifies grazing across entire reefs create reef-scale, alternatively stable kelp- and urchin-dominated states (32% of reefs). Best-fitting models in New Zealand include the feedback of urchins avoiding dense kelp stands that can increase abrasion and predation risk, which drives a transition from shallower urchin-dominated to deeper kelp-dominated zones, with patchiness at 3–8 m depths with intermediate wave stress. Connecting locally studied processes with region-wide data, we highlight how behaviour can explain community patterning and why some systems exhibit community-wide alternative stable states. © 2021 John Wiley & Sons Ltd.
关键词	alternative stable states behaviour dynamical models kelp forests spatial patterning
语种	英语
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/204416
作者单位	Department of Environmental Science and Policy, University of California, Davis, CA, United States; Graduate Group in Ecology, University of California, Davis, CA, United States; Channel Islands National Park, Ventura, CA, United States; Leigh Marine Laboratory, Institute of Marine Science, University of Auckland, Auckland, New Zealand; Marine Science Institute, University of California Santa Barbara, Santa Barbara, CA, United States; Department of Environmental Science, Policy and Management, University of California, Berkeley, CA, United States
推荐引用方式 GB/T 7714	Karatayev V.A.,Baskett M.L.,Kushner D.J.,et al. Grazer behaviour can regulate large-scale patterning of community states[J],2021,24(9).
APA	Karatayev V.A.,Baskett M.L.,Kushner D.J.,Shears N.T.,Caselle J.E.,&Boettiger C..(2021).Grazer behaviour can regulate large-scale patterning of community states.Ecology Letters,24(9).
MLA	Karatayev V.A.,et al."Grazer behaviour can regulate large-scale patterning of community states".Ecology Letters 24.9(2021).