气候变化领域集成服务门户(CCPortal): A ‘dynamic’ landscape of fear: prey responses to spatiotemporal variations in predation risk across the lunar cycle

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DOI	10.1111/ele.12832
	A ‘dynamic’ landscape of fear: prey responses to spatiotemporal variations in predation risk across the lunar cycle
	Palmer M.S.; Fieberg J.; Swanson A.; Kosmala M.; Packer C.
发表日期	2017
ISSN	1461-023X
EISSN	1461-0248
卷号	20 期号:11
英文摘要	Ambiguous empirical support for ‘landscapes of fear’ in natural systems may stem from failure to consider dynamic temporal changes in predation risk. The lunar cycle dramatically alters night-time visibility, with low luminosity increasing hunting success of African lions. We used camera-trap data from Serengeti National Park to examine nocturnal anti-predator behaviours of four herbivore species. Interactions between predictable fluctuations in night-time luminosity and the underlying risk-resource landscape shaped herbivore distribution, herding propensity and the incidence of ‘relaxed’ behaviours. Buffalo responded least to temporal risk cues and minimised risk primarily through spatial redistribution. Gazelle and zebra made decisions based on current light levels and lunar phase, and wildebeest responded to lunar phase alone. These three species avoided areas where likelihood of encountering lions was high and changed their behaviours in risky areas to minimise predation threat. These patterns support the hypothesis that fear landscapes vary heterogeneously in both space and time. © 2017 John Wiley & Sons Ltd/CNRS
英文关键词	Anti-predator behaviour; buffalo; landscape of fear; lion; lunar cycle; predation risk; predator–prey interaction; Thomson's gazelle; wildebeest; zebra
学科领域	Equus subg. Hippotigris; animal; buffalo; Equidae; fear; food chain; lion; moon; predation; risk factor; spatiotemporal analysis; Animals; Buffaloes; Equidae; Fear; Food Chain; Lions; Moon; Predatory Behavior; Risk Factors; Spatio-Temporal Analysis
语种	英语
scopus关键词	Equus subg. Hippotigris; animal; buffalo; Equidae; fear; food chain; lion; moon; predation; risk factor; spatiotemporal analysis; Animals; Buffaloes; Equidae; Fear; Food Chain; Lions; Moon; Predatory Behavior; Risk Factors; Spatio-Temporal Analysis
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/118309
作者单位	Department of Ecology, Evolution, and & Behavior, University of Minnesota, St. Paul, MN, United States; Department of Fisheries, Wildlife and Conservation Biology, University of Minnesota, St. Paul, MN, United States; Department of Physics, University of Oxford, Oxford, United Kingdom; Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA, United States
推荐引用方式 GB/T 7714	Palmer M.S.,Fieberg J.,Swanson A.,等. A ‘dynamic’ landscape of fear: prey responses to spatiotemporal variations in predation risk across the lunar cycle[J],2017,20(11).
APA	Palmer M.S.,Fieberg J.,Swanson A.,Kosmala M.,&Packer C..(2017).A ‘dynamic’ landscape of fear: prey responses to spatiotemporal variations in predation risk across the lunar cycle.Ecology Letters,20(11).
MLA	Palmer M.S.,et al."A ‘dynamic’ landscape of fear: prey responses to spatiotemporal variations in predation risk across the lunar cycle".Ecology Letters 20.11(2017).