气候变化领域集成服务门户(CCPortal): Optimisation of energetic and reproductive gains explains behavioural responses to environmental variation across seasons and years

CCPortal

DOI	10.1111/ele.13494
	Optimisation of energetic and reproductive gains explains behavioural responses to environmental variation across seasons and years
	Studd E.K.; Menzies A.K.; Siracusa E.R.; Dantzer B.; Lane J.E.; McAdam A.G.; Boutin S.; Humphries M.M.
发表日期	2020
ISSN	1461023X
起始页码	841
结束页码	850
卷号	23 期号:5
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
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
语种	英语
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/204299
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
推荐引用方式 GB/T 7714	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],2020,23(5).
APA	Studd E.K..,Menzies A.K..,Siracusa E.R..,Dantzer B..,Lane J.E..,...&Humphries M.M..(2020).Optimisation of energetic and reproductive gains explains behavioural responses to environmental variation across seasons and years.Ecology Letters,23(5).
MLA	Studd E.K.,et al."Optimisation of energetic and reproductive gains explains behavioural responses to environmental variation across seasons and years".Ecology Letters 23.5(2020).