DOI: 10.1111/ele.12496
Scopus记录号: 2-s2.0-84943663474
论文题名: Do native predators benefit from non-native prey?
作者: Pintor L.M. ; Byers J.E.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2015
卷: 18, 期: 11 起始页码: 1174
结束页码: 1180
语种: 英语
英文关键词: Additive designs
; Biotic resistance
; Enemy release hypothesis
; Invasive species
; Non-native species
; Novel prey
; Optimal foraging theory
; Predator-prey interactions
; Substitutive designs
英文摘要: Despite knowledge on invasive species' predatory effects, we know little of their influence as prey. Non-native prey should have a neutral to positive effect on native predators by supplementing the prey base. However, if non-native prey displace native prey, then an invader's net influence should depend on both its abundance and value relative to native prey. We conducted a meta-analysis to quantify the effect of non-native prey on native predator populations. Relative to native prey, non-native prey similarly or negatively affect native predators, but only when studies employed a substitutive design that examined the effects of each prey species in isolation from other prey. When native predators had access to non-native and native prey simultaneously, predator abundance increased significantly relative to pre-invasion abundance. Although non-native prey may have a lower per capita value than native prey, they seem to benefit native predators by serving as a supplemental prey resource. © 2015 John Wiley & Sons Ltd/CNRS.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/107896
Appears in Collections: 气候减缓与适应
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作者单位: School of Environment and Natural Resources, The Ohio State University, 2021 Coffey Road, Columbus, OH, United States; Odum School of Ecology, University of Georgia, 140 E. Green Street, Athens, GA, United States
Recommended Citation:
Pintor L.M.,Byers J.E.. Do native predators benefit from non-native prey?[J]. Ecology Letters,2015-01-01,18(11)