globalchange  > 气候变化事实与影响
Scopus记录号: 2-s2.0-85059638889
论文题名:
Snake venom potency and yield are associated with prey-evolution, predator metabolism and habitat structure
作者: Healy K.; Carbone C.; Jackson A.L.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2019
卷: 22, 期:3
起始页码: 527
结束页码: 537
语种: 英语
英文关键词: Body size ; comparative analysis ; LD 50 ; macroecology ; phylogenetic analysis ; scaling ; snake ; trophic ecology ; venom
英文摘要: Snake venom is well known for its ability to incapacitate and kill prey. Yet, potency and the amount of venom available varies greatly across species, ranging from the seemingly harmless to those capable of killing vast numbers of potential prey. This variation is poorly understood, with comparative approaches confounded by the use of atypical prey species as models to measure venom potency. Here, we account for such confounding issues by incorporating the phylogenetic similarity between a snake's diet and the species used to measure its potency. In a comparative analysis of 102 species we show that snake venom potency is generally prey-specific. We also show that venom yields are lower in species occupying three dimensional environments and increases with body size corresponding to metabolic rate, but faster than predicted from increases in prey size. These results underline the importance of physiological and environmental factors in the evolution of predator traits. © 2019 John Wiley & Sons Ltd/CNRS
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122726
Appears in Collections:气候变化事实与影响

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作者单位: Department of Zoology, School of Natural Sciences, Trinity College Dublin, Dublin 2, Ireland; School of Biology, University of St Andrews, St Andrews, KY16 9TH, United Kingdom; School of Natural Sciences, National University of Ireland Galway, Galway, Ireland; Institute of Zoology, Zoological Society of London, London, United Kingdom

Recommended Citation:
Healy K.,Carbone C.,Jackson A.L.. Snake venom potency and yield are associated with prey-evolution, predator metabolism and habitat structure[J]. Ecology Letters,2019-01-01,22(3)
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