气候变化领域集成服务门户(CCPortal): Do native predators benefit from non-native prey?

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DOI	10.1111/ele.12496
	Do native predators benefit from non-native prey?
	Pintor L.M.; Byers J.E.
发表日期	2015
ISSN	1461-023X
EISSN	1461-0248
卷号	18 期号:11
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.
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
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/118682
作者单位	School of Environment and Natural Resources, The Ohio State University, 2021 Coffey Road, Columbus, OH 43210, United States; Odum School of Ecology, University of Georgia, 140 E. Green Street, Athens, GA 30602, United States
推荐引用方式 GB/T 7714	Pintor L.M.,Byers J.E.. Do native predators benefit from non-native prey?[J],2015,18(11).
APA	Pintor L.M.,&Byers J.E..(2015).Do native predators benefit from non-native prey?.Ecology Letters,18(11).
MLA	Pintor L.M.,et al."Do native predators benefit from non-native prey?".Ecology Letters 18.11(2015).