气候变化领域集成服务门户(CCPortal): Coexistence barriers confine the poleward range of a globally distributed plant

CCPortal

DOI	10.1111/ele.13612
	Coexistence barriers confine the poleward range of a globally distributed plant
	Armitage D.W.; Jones S.E.
发表日期	2020
ISSN	1461023X
起始页码	1838
结束页码	1848
卷号	23 期号:12
英文摘要	In the study of factors shaping species' poleward range boundaries, climatic constraints are often assigned greater importance than biotic interactions such as competition. However, theory suggests competition can truncate a species' fundamental niche in harsh environments. We test this by challenging a mechanistic niche model – containing explicit competition terms – to predict the poleward range boundaries of two globally distributed, ecologically similar aquatic plant species. Mechanistic competition models accurately predicted the northern range limits of our study species, outperforming competition-free mechanistic models and matching the predictive ability of statistical niche models fit to occurrence records. Using the framework of modern coexistence theory, we found that relative nonlinearity in competitors' responses to temperature fluctuations maintains their coexistence boundary, highlighting the importance of this fluctuation-dependent mechanism. Our results support a more nuanced, interactive role of climate and competition in determining range boundaries, and illustrate a practical, process-based approach to understanding the determinants of range limits. © 2020 John Wiley & Sons Ltd.
关键词	Coexistence competition geographic distribution invasibility niche model range limit
英文关键词	ecosystem; plant; Ecosystem; Plants
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/204208
作者单位	Department of BioSciences, Rice University, Houston, TX 77005, United States; Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556, United States
推荐引用方式 GB/T 7714	Armitage D.W.,Jones S.E.. Coexistence barriers confine the poleward range of a globally distributed plant[J],2020,23(12).
APA	Armitage D.W.,&Jones S.E..(2020).Coexistence barriers confine the poleward range of a globally distributed plant.Ecology Letters,23(12).
MLA	Armitage D.W.,et al."Coexistence barriers confine the poleward range of a globally distributed plant".Ecology Letters 23.12(2020).