气候变化领域集成服务门户(CCPortal): Body size and digestive system shape resource selection by ungulates: A cross-taxa test of the forage maturation hypothesis

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DOI	10.1111/ele.13848
	Body size and digestive system shape resource selection by ungulates: A cross-taxa test of the forage maturation hypothesis
	Esmaeili S.; Jesmer B.R.; Albeke S.E.; Aikens E.O.; Schoenecker K.A.; King S.R.B.; Abrahms B.; Buuveibaatar B.; Beck J.L.; Boone R.B.; Cagnacci F.; Chamaillé-Jammes S.; Chimeddorj B.; Cross P.C.; Dejid N.; Enkhbyar J.; Fischhoff I.R.; Ford A.T.; Jenks K.; Hemami M.-R.; Hennig J.D.; Ito T.Y.; Kaczensky P.; Kauffman M.J.; Linnell J.D.C.; Lkhagvasuren B.; McEvoy J.F.; Melzheimer J.; Merkle J.A.; Mueller T.; Muntifering J.; Mysterud A.; Olson K.A.; Panzacchi M.; Payne J.C.; Pedrotti L.; Rauset G.R.; Rubenstein D.I.; Sawyer H.; Scasta J.D.; Signer J.; Songer M.; Stabach J.A.; Stapleton S.; Strand O.; Sundaresan S.R.; Usukhjargal D.; Uuganbayar G.; Fryxell J.M.; Goheen J.R.
发表日期	2021
ISSN	1461023X
英文摘要	The forage maturation hypothesis (FMH) states that energy intake for ungulates is maximised when forage biomass is at intermediate levels. Nevertheless, metabolic allometry and different digestive systems suggest that resource selection should vary across ungulate species. By combining GPS relocations with remotely sensed data on forage characteristics and surface water, we quantified the effect of body size and digestive system in determining movements of 30 populations of hindgut fermenters (equids) and ruminants across biomes. Selection for intermediate forage biomass was negatively related to body size, regardless of digestive system. Selection for proximity to surface water was stronger for equids relative to ruminants, regardless of body size. To be more generalisable, we suggest that the FMH explicitly incorporate contingencies in body size and digestive system, with small-bodied ruminants selecting more strongly for potential energy intake, and hindgut fermenters selecting more strongly for surface water. © 2021 John Wiley & Sons Ltd.
关键词	Equidae forage biomass hindgut fermentation macroecology ruminant step-selection function water requirements
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/204384
作者单位	Department of Zoology and Physiology and Program in Ecology, University of Wyoming, Laramie, WY, United States; Department of Fish and Wildlife Conservation, Virginia Tech, Blacksburg, VA, United States; Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT, United States; Center for Biodiversity and Global Change, Yale University, New Haven, CT, United States; Wyoming Geographic Information Science Center, University of Wyoming, Laramie, WY, United States; US Geological Survey, Fort Collins Science Center, Fort Collins, CO, United States; Natural Resource Ecology Laboratory, Warner College of Natural Resources, Colorado State University, Fort Collins, CO, United States; Center for Ecosystem Sentinels, Department of Biology, University of Washington, Seattle, WA, United States; Wildlife Conservation Society, Mongolia Program, Ulaanbaatar, Mongolia; Department of Ecosystem Science and Management, University of Wyoming, Laramie, WY, United States; Department of Ecosystem Science and...
推荐引用方式 GB/T 7714	Esmaeili S.,Jesmer B.R.,Albeke S.E.,et al. Body size and digestive system shape resource selection by ungulates: A cross-taxa test of the forage maturation hypothesis[J],2021.
APA	Esmaeili S..,Jesmer B.R..,Albeke S.E..,Aikens E.O..,Schoenecker K.A..,...&Goheen J.R..(2021).Body size and digestive system shape resource selection by ungulates: A cross-taxa test of the forage maturation hypothesis.Ecology Letters.
MLA	Esmaeili S.,et al."Body size and digestive system shape resource selection by ungulates: A cross-taxa test of the forage maturation hypothesis".Ecology Letters (2021).