DOI: 10.1111/ele.13612
论文题名: Coexistence barriers confine the poleward range of a globally distributed plant
作者: Armitage D.W. ; Jones S.E.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2020
卷: 23, 期: 12 起始页码: 1838
结束页码: 1848
语种: 英语
中文关键词: Coexistence
; competition
; geographic distribution
; invasibility
; niche model
; range limit
英文关键词: ecosystem
; plant
; Ecosystem
; Plants
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. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/166579
Appears in Collections: 气候变化与战略
There are no files associated with this item.
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
Recommended Citation:
Armitage D.W.,Jones S.E.. Coexistence barriers confine the poleward range of a globally distributed plant[J]. Ecology Letters,2020-01-01,23(12)