气候变化领域集成服务门户(CCPortal): Experimental evidence of memory-based foraging decisions in a large wild mammal

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DOI	10.1073/pnas.2014856118
	Experimental evidence of memory-based foraging decisions in a large wild mammal
	Ranc N.; Moorcroft P.R.; Ossi F.; Cagnacci F.
发表日期	2021
ISSN	00278424
卷号	118 期号:15
英文摘要	Many animals restrict their movements to a characteristic home range. This constrained pattern of space use is thought to result from the foraging benefits of memorizing the locations and quality of heterogeneously distributed resources. However, due to the confounding effects of sensory perception, the role of memory in home-range movement behavior lacks definitive evidence in the wild. Here, we analyze the foraging decisions of a large mammal during a field resource manipulation experiment designed to disentangle the effects of memory and perception. We parametrize a mechanistic model of spatial transitions using experimental data to quantify the cognitive processes underlying animal foraging behavior and to predict how individuals respond to resource heterogeneity in space and time. We demonstrate that roe deer (Capreolus capreolus) rely on memory, not perception, to track the spatiotemporal dynamics of resources within their home range. Roe deer foraging decisions were primarily based on recent experience (half-lives of 0.9 and 5.6 d for attribute and spatial memory, respectively), enabling them to adapt to sudden changes in resource availability. The proposed memory-based model was able to both quantify the cognitive processes underlying roe deer behavior and accurately predict how they shifted resource use during the experiment. Our study highlights the fact that animal foraging decisions are based on incomplete information on the locations of available resources, a factor that is critical to developing accurate predictions of animal spatial behavior but is typically not accounted for in analyses of animal movement in the wild. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Cognition; Foraging behavior; Mechanistic modeling; Movement model; Roe deer
语种	英语
scopus关键词	adult; animal experiment; animal model; article; female; foraging behavior; half life time; home range; male; nonhuman; perception; prediction; roe deer; spatial behavior; spatial memory
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/179907
作者单位	Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA 02138, United States; Department of Biodiversity and Molecular Ecology, Research and Innovation Centre, Fondazione Edmund Mach, San Michele all'Adige, 38010, Italy; Centro Agricoltura Alimenti Ambiente, Trento University, San Michele all'Adige, 38010, Italy
推荐引用方式 GB/T 7714	Ranc N.,Moorcroft P.R.,Ossi F.,et al. Experimental evidence of memory-based foraging decisions in a large wild mammal[J],2021,118(15).
APA	Ranc N.,Moorcroft P.R.,Ossi F.,&Cagnacci F..(2021).Experimental evidence of memory-based foraging decisions in a large wild mammal.Proceedings of the National Academy of Sciences of the United States of America,118(15).
MLA	Ranc N.,et al."Experimental evidence of memory-based foraging decisions in a large wild mammal".Proceedings of the National Academy of Sciences of the United States of America 118.15(2021).