DOI: 10.1111/ele.12832
Scopus记录号: 2-s2.0-85031508158
论文题名: A ‘dynamic’ landscape of fear: prey responses to spatiotemporal variations in predation risk across the lunar cycle
作者: Palmer M.S. ; Fieberg J. ; Swanson A. ; Kosmala M. ; Packer C.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2017
卷: 20, 期: 11 起始页码: 1364
结束页码: 1373
语种: 英语
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
Scopus关键词: Equus subg. Hippotigris
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 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/107545
Appears in Collections: 气候减缓与适应
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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
Recommended Citation:
Palmer M.S.,Fieberg J.,Swanson A.,et al. A ‘dynamic’ landscape of fear: prey responses to spatiotemporal variations in predation risk across the lunar cycle[J]. Ecology Letters,2017-01-01,20(11)