DOI: 10.1111/ele.12965
Scopus记录号: 2-s2.0-85045414430
论文题名: Declining home range area predicts reduced late-life survival in two wild ungulate populations
作者: 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.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2018
卷: 21, 期: 7 起始页码: 1001
结束页码: 1009
语种: 英语
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
Scopus关键词: Cervus
; Cervus elaphus
; Ovis aries
; Ungulata
; Vertebrata
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 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/107419
Appears in Collections: 气候减缓与适应
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作者单位: Institute of Evolutionary Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, United Kingdom; Department of Biosciences, College of Science, Swansea University, Swansea, United Kingdom; Department of Life Sciences, Imperial College London, Silwood Park, Ascot, United Kingdom; Department of Zoology, University of Cambridge, Cambridge, United Kingdom
Recommended Citation:
Froy H.,Börger L.,Regan C.E.,et al. Declining home range area predicts reduced late-life survival in two wild ungulate populations[J]. Ecology Letters,2018-01-01,21(7)