globalchange  > 气候变化与战略
DOI: 10.1111/ele.13494
论文题名:
Optimisation of energetic and reproductive gains explains behavioural responses to environmental variation across seasons and years
作者: Studd E.K.; Menzies A.K.; Siracusa E.R.; Dantzer B.; Lane J.E.; McAdam A.G.; Boutin S.; Humphries M.M.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2020
卷: 23, 期:5
起始页码: 841
结束页码: 850
语种: 英语
中文关键词: Accelerometer ; behaviour ; decision-making ; energetic gain ; hoarding ; metabolic ecology ; optimal behaviour ; Tamiasciurus hudsonicus
英文关键词: Animalia ; Sciuridae ; Tamiasciurus ; Tamiasciurus hudsonicus ; animal ; energy metabolism ; predation ; reproduction ; Sciuridae ; season ; Animals ; Energy Metabolism ; Predatory Behavior ; Reproduction ; Sciuridae ; Seasons
英文摘要: Animals switch between inactive and active states, simultaneously impacting their energy intake, energy expenditure and predation risk, and collectively defining how they engage with environmental variation and trophic interactions. We assess daily activity responses to long-term variation in temperature, resources and mating opportunities to examine whether individuals choose to be active or inactive according to an optimisation of the relative energetic and reproductive gains each state offers. We show that this simplified behavioural decision approach predicts most activity variation (R2 = 0.83) expressed by free-ranging red squirrels over 4 years, as quantified through accelerometer recordings (489 deployments; 5066 squirrel-days). Recognising activity as a determinant of energetic status, the predictability of activity variation aggregated at a daily scale, and the clear signal that behaviour is environmentally forced through optimisation of gain, provides an integrated approach to examine behavioural variation as an intermediary between environmental variation and energetic, life-history and ecological outcomes. © 2020 John Wiley & Sons Ltd/CNRS
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/166729
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作者单位: Department of Natural Resource Sciences, McGill University, Sainte-Anne-de-Bellevue, Bellevue, QC, Canada; Department of Biological Sciences, University of Alberta, Edmonton, AB, Canada; Department of Integrative Biology, University of Guelph, Guelph, ON, Canada; Department of Psychology, University of Michigan, Ann Arbor, MI, United States; Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, MI, United States; Department of Biology, University of Saskatchewan, Saskatoon, SK, Canada; Department of Ecology and Evolutionary Biology, University of Colorado, Boulder, CO, United States

Recommended Citation:
Studd E.K.,Menzies A.K.,Siracusa E.R.,et al. Optimisation of energetic and reproductive gains explains behavioural responses to environmental variation across seasons and years[J]. Ecology Letters,2020-01-01,23(5)
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