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DOI	10.1111/ele.13160
	On the relationship between body condition and parasite infection in wildlife: a review and meta-analysis
	Sánchez C.A.; Becker D.J.; Teitelbaum C.S.; Barriga P.; Brown L.M.; Majewska A.A.; Hall R.J.; Altizer S.
发表日期	2018
ISSN	1461023X
卷号	21 期号:12
英文摘要	Body condition metrics are widely used to infer animal health and to assess costs of parasite infection. Since parasites harm their hosts, ecologists might expect negative relationships between infection and condition in wildlife, but this assumption is challenged by studies showing positive or null condition–infection relationships. Here, we outline common condition metrics used by ecologists in studies of parasitism, and consider mechanisms that cause negative, positive, and null condition–infection relationships in wildlife systems. We then perform a meta-analysis of 553 condition–infection relationships from 187 peer-reviewed studies of animal hosts, analysing observational and experimental records separately, and noting whether authors measured binary infection status or intensity. Our analysis finds substantial heterogeneity in the strength and direction of condition–infection relationships, a small, negative average effect size that is stronger in experimental studies, and evidence for publication bias towards negative relationships. The strongest predictors of variation in study outcomes are host thermoregulation and the methods used to evaluate body condition. We recommend that studies aiming to assess parasite impacts on body condition should consider host–parasite biology, choose condition measures that can change during the course of infection, and employ longitudinal surveys or manipulate infection status when feasible. © 2018 John Wiley & Sons Ltd/CNRS
英文关键词	Fitness; host–parasite interaction; infectious disease ecology; phylogenetic meta-analysis; publication bias; susceptibility; virulence
语种	英语
scopus关键词	body condition; experimental study; fitness; heterogeneity; host-parasite interaction; infectious disease; literature review; meta-analysis; parasite infestation; phylogenetics; thermoregulation; virulence; Animalia; animal; host parasite interaction; meta analysis; parasite; parasitosis; wild animal; Animals; Animals, Wild; Host-Parasite Interactions; Parasites; Parasitic Diseases
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/121211
作者单位	Odum School of Ecology, University of Georgia, Athens, GA, United States; Center for the Ecology of Infectious Disease, University of Georgia, Athens, GA, United States; Department of Microbiology and Immunology, Montana State University, Bozeman, MT, United States; Department of Biology, Tufts University, Medford, MA, United States; Department of Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, GA, United States
推荐引用方式 GB/T 7714	Sánchez C.A.,Becker D.J.,Teitelbaum C.S.,et al. On the relationship between body condition and parasite infection in wildlife: a review and meta-analysis[J],2018,21(12).
APA	Sánchez C.A..,Becker D.J..,Teitelbaum C.S..,Barriga P..,Brown L.M..,...&Altizer S..(2018).On the relationship between body condition and parasite infection in wildlife: a review and meta-analysis.Ecology Letters,21(12).
MLA	Sánchez C.A.,et al."On the relationship between body condition and parasite infection in wildlife: a review and meta-analysis".Ecology Letters 21.12(2018).