气候变化领域集成服务门户(CCPortal): Non-native plants have greater impacts because of differing per-capita effects and nonlinear abundance

CCPortal

DOI	10.1111/ele.13284
	Non-native plants have greater impacts because of differing per-capita effects and nonlinear abundance–impact curves
	Pearse I.S.; Sofaer H.R.; Zaya D.N.; Spyreas G.
发表日期	2019
ISSN	1461023X
卷号	22 期号:8
英文摘要	Invasive, non-native species can have tremendous impacts on biotic communities, where they reduce the abundance and diversity of local species. However, it remains unclear whether impacts of non-native species arise from their high abundance or whether each non-native individual has a disproportionate impact – that is, a higher per-capita effect – on co-occurring species compared to impacts by native species. Using a long-term study of wetlands, we asked how temporal variation in dominant native and non-native plants impacted the abundance and richness of other plants in the recipient community. Non-native plants reached higher abundances than natives and had greater per-capita effects. The abundance–impact relationship between plant abundance and richness was nonlinear. Compared with increasing native abundance, increasing non-native abundance was associated with steeper declines in richness because of greater per-capita effects and nonlinearities in the abundance–impact relationship. Our study supports eco-evolutionary novelty of non-natives as a driver of their outsized impacts on communities. © 2019 John Wiley & Sons Ltd/CNRS This article has been contributed to by US Government employees and their work is in the public domain in the USA.
英文关键词	Abundance–Impact Curves; community assembly; eco-evolutionary novelty; invasive species impacts; longitudinal analysis; per-capita effects; wetlands
语种	英语
scopus关键词	evolution; introduced species; plant; wetland; Biological Evolution; Introduced Species; Plants; Wetlands
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/121062
作者单位	U.S. Geological Survey Fort Collins Science Center, 2150 Centre Ave #C, Ft Collins, CO 80521, United States; Illinois Natural History Survey, University of Illinois Urbana-Champaign, 1816 S. Oak St, Champaign, IL 61820, United States
推荐引用方式 GB/T 7714	Pearse I.S.,Sofaer H.R.,Zaya D.N.,等. Non-native plants have greater impacts because of differing per-capita effects and nonlinear abundance–impact curves[J],2019,22(8).
APA	Pearse I.S.,Sofaer H.R.,Zaya D.N.,&Spyreas G..(2019).Non-native plants have greater impacts because of differing per-capita effects and nonlinear abundance–impact curves.Ecology Letters,22(8).
MLA	Pearse I.S.,et al."Non-native plants have greater impacts because of differing per-capita effects and nonlinear abundance–impact curves".Ecology Letters 22.8(2019).