气候变化领域集成服务门户(CCPortal): Declining home range area predicts reduced late-life survival in two wild ungulate populations

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DOI	10.1111/ele.12965
	Declining home range area predicts reduced late-life survival in two wild ungulate populations
	Froy H.; Börger L.; Regan C.E.; Morris A.; Morris S.; Pilkington J.G.; Crawley M.J.; Clutton-Brock T.H.; Pemberton J.M.; Nussey D.H.
发表日期	2018
ISSN	1461023X
卷号	21 期号:7
英文摘要	Demographic senescence is increasingly recognised as an important force shaping the dynamics of wild vertebrate populations. However, our understanding of the processes that underpin these declines in survival and fertility in old age remains limited. Evidence for age-related changes in foraging behaviour and habitat use is emerging from wild vertebrate studies, but the extent to which these are driven by within-individual changes, and the consequences for fitness, remain unclear. Using longitudinal census observations collected over four decades from two long-term individual-based studies of unmanaged ungulates, we demonstrate consistent within-individual declines in home range area with age in adult females. In both systems, we found that within-individual decreases in home range area were associated with increased risk of mortality the following year. Our results provide the first evidence from the wild that age-related changes in space use are predictive of adult mortality. © 2018 The Authors. Ecology Letters published by CNRS and John Wiley & Sons Ltd
英文关键词	Ageing; fitness; home range; Isle of Rum; longitudinal study; red deer Elaphus cervus; senescence; Soay sheep Ovis aries; space use; St Kilda
语种	英语
scopus关键词	Cervus; Cervus elaphus; Ovis aries; Ungulata; Vertebrata; animal; deer; ecosystem; female; fertility; homing behavior; Animals; Deer; Ecosystem; Female; Fertility; Homing Behavior
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/121299
作者单位	Institute of Evolutionary Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, EH9 3FL, United Kingdom; Department of Biosciences, College of Science, Swansea University, Swansea, SA2 8PP, United Kingdom; Department of Life Sciences, Imperial College London, Silwood Park, Ascot, SL5 7PY, United Kingdom; Department of Zoology, University of Cambridge, Cambridge, CB3 0DF, United Kingdom
推荐引用方式 GB/T 7714	Froy H.,Börger L.,Regan C.E.,et al. Declining home range area predicts reduced late-life survival in two wild ungulate populations[J],2018,21(7).
APA	Froy H..,Börger L..,Regan C.E..,Morris A..,Morris S..,...&Nussey D.H..(2018).Declining home range area predicts reduced late-life survival in two wild ungulate populations.Ecology Letters,21(7).
MLA	Froy H.,et al."Declining home range area predicts reduced late-life survival in two wild ungulate populations".Ecology Letters 21.7(2018).