Arid
DOI10.1111/ele.12818
Rainfall variability and fine-scale life history tradeoffs help drive niche partitioning in a desert annual plant community
Shriver, Robert K.
通讯作者Shriver, Robert K.
来源期刊ECOLOGY LETTERS
ISSN1461-023X
EISSN1461-0248
出版年2017
卷号20期号:10页码:1231-1241
英文摘要

Tradeoffs have long been an essential part of the canon explaining the maintenance of species diversity. Despite the intuitive appeal of the idea that no species can be a master of all trades, there has been a scarcity of linked demographic and physiological evidence to support the role of resource use tradeoffs in natural systems. Using five species of Chihuahuan desert summer annual plants, I show that demographic tradeoffs driven by short-term soil moisture variation act as a mechanism to allow multiple species to partition a limiting resource. Specifically, by achieving highest fitness in either rainfall pulse or interpulse periods, variability reduces fitness differences through time that could promote coexistence on a limiting resource. Differences in fitness are explained in part by the response of photosynthesis to changing soil moisture. My results suggest that increasing weather variability, as predicted under climate change, could increase the opportunity for coexistence in this community.


英文关键词Comparative demography comparative ecophysiology intraannual variability niche partitioning resource pulses resource variability species coexistence tradeoffs
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000411035600002
WOS关键词INDUCED TREE MORTALITY ; CLIMATE VARIABILITY ; COEXISTENCE ; DROUGHT ; MECHANISMS ; MAINTENANCE ; COMPETITION ; GROWTH ; OFFS
WOS类目Ecology
WOS研究方向Environmental Sciences & Ecology
来源机构Arizona State University
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/198525
作者单位Duke Univ, Univ Program Ecol, Durham, NC 27708 USA
推荐引用方式
GB/T 7714
Shriver, Robert K.. Rainfall variability and fine-scale life history tradeoffs help drive niche partitioning in a desert annual plant community[J]. Arizona State University,2017,20(10):1231-1241.
APA Shriver, Robert K..(2017).Rainfall variability and fine-scale life history tradeoffs help drive niche partitioning in a desert annual plant community.ECOLOGY LETTERS,20(10),1231-1241.
MLA Shriver, Robert K.."Rainfall variability and fine-scale life history tradeoffs help drive niche partitioning in a desert annual plant community".ECOLOGY LETTERS 20.10(2017):1231-1241.
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