气候变化领域集成服务门户(CCPortal): Resolving the invasion paradox: pervasive scale and study dependence in the native-alien species richness relationship

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DOI	10.1111/ele.13261
	Resolving the invasion paradox: pervasive scale and study dependence in the native-alien species richness relationship
	Tomasetto F.; Duncan R.P.; Hulme P.E.
发表日期	2019
ISSN	1461023X
卷号	22 期号:6
英文摘要	The degree to which plant communities are vulnerable to invasion by alien species has often been assessed using the relationship between native and alien plant species richness (NAR). Variation in the direction and strength of the NAR tends to be negative for small plot sizes and study extents, but positive for large plots and extents. This invasion paradox has been attributed to different processes driving species richness at different spatial scales. However, the focus on plot size has drawn attention away from other factors influencing the NAR, in part because the influence of other factors may be obscured by or interact with plot size. Here, we test whether variation in the NAR can be explained by covariates linked to community susceptibility to invasion and whether these interact with plot size using a quantitative meta-analysis drawn from 87 field studies that examined 161 NARs. While plot size explained most variation, the NAR was less positive in grassland habitats and in the Australasian region. Other covariates did not show strong relationships with the NAR even after accounting for interactions with plot size. Instead, much of the unexplained variation is associated with article or author specific differences, suggesting the NAR depends strongly on how different authors choose their study system or study design. © 2019 John Wiley & Sons Ltd/CNRS
英文关键词	Author effect; biological invasions; effect size; heterogeneity; meta-regression; spatial grain; weeds
语种	英语
scopus关键词	biological invasion; grassland; heterogeneity; invasive species; native species; plant community; regression analysis; scale effect; spatial analysis; species richness; weed; Australasia; biodiversity; ecosystem; meta analysis; methodology; plant; Biodiversity; Ecosystem; Plants; Research Design
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/121084
作者单位	AgResearch Limited, 1365 Springs Road, Christchurch, 8140, New Zealand; Bio-Protection Research Centre, Lincoln University, PO Box 84, Lincoln, 7647, New Zealand; Institute for Applied Ecology, University of Canberra, Canberra, ACT 2601, Australia
推荐引用方式 GB/T 7714	Tomasetto F.,Duncan R.P.,Hulme P.E.. Resolving the invasion paradox: pervasive scale and study dependence in the native-alien species richness relationship[J],2019,22(6).
APA	Tomasetto F.,Duncan R.P.,&Hulme P.E..(2019).Resolving the invasion paradox: pervasive scale and study dependence in the native-alien species richness relationship.Ecology Letters,22(6).
MLA	Tomasetto F.,et al."Resolving the invasion paradox: pervasive scale and study dependence in the native-alien species richness relationship".Ecology Letters 22.6(2019).