气候变化领域集成服务门户(CCPortal): The limits to population density in birds and mammals

CCPortal

DOI	10.1111/ele.13227
	The limits to population density in birds and mammals
	Stephens P.A.; Vieira M.V.; Willis S.G.; Carbone C.
发表日期	2019
ISSN	1461023X
卷号	22 期号:4
英文摘要	We address two fundamental ecological questions: what are the limits to animal population density and what determines those limits? We develop simple alternative models to predict population limits in relation to body mass. A model assuming that within-species area use increases with the square of daily travel distance broadly predicts the scaling of empirical extremes of minimum density across birds and mammals. Consistent with model predictions, the estimated density range for a given mass, ‘population scope’, is greater for birds than for mammals. However, unlike mammals and carnivorous birds, expected broad relationships between body mass and density extremes are not supported by data on herbivorous and omnivorous birds. Our results suggest that simple constraints on mobility and energy use/supply are major determinants of the scaling of density limits, but further understanding of interactions between dietary constraints and density limits are needed to predict future wildlife population responses to anthropogenic threats. © 2019 The Authors Ecology Letters published by CNRS and John Wiley & Sons Ltd.
英文关键词	Body size; carnivore; energetics; herbivore; macroecology; minimum viable population size; population density; scaling
语种	英语
scopus关键词	Animalia; Aves; Mammalia; animal; biological model; bird; Carnivora; mammal; population density; Animals; Birds; Carnivora; Mammals; Models, Biological; Population Density
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/121113
作者单位	Conservation Ecology Group, Department of Biosciences, Durham University, South Road, Durham, DH1 3LE, United Kingdom; Departamento de Ecologia, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Cp 68020, Rio de Janeiro RJ, 21941-902, Brazil; Institute of Zoology, Zoological Society of London, Regent's Park, London, NW1 4RY, United Kingdom
推荐引用方式 GB/T 7714	Stephens P.A.,Vieira M.V.,Willis S.G.,et al. The limits to population density in birds and mammals[J],2019,22(4).
APA	Stephens P.A.,Vieira M.V.,Willis S.G.,&Carbone C..(2019).The limits to population density in birds and mammals.Ecology Letters,22(4).
MLA	Stephens P.A.,et al."The limits to population density in birds and mammals".Ecology Letters 22.4(2019).