Arid
DOI10.1890/ES15-00239.1
Using life history trade-offs to understand core-transient structuring of a small mammal community
Supp, Sarah R.1,2; Koons, David N.2,3; Ernest, S. K. Morgan1,2
通讯作者Supp, Sarah R.
来源期刊ECOSPHERE
ISSN2150-8925
出版年2015
卷号6期号:10
英文摘要

An emerging conceptual framework suggests that communities are composed of two main groups of species through time: core species that are temporally persistent, and transient species that are temporally intermittent. Core and transient species have been shown to differ in spatiotemporal turnover, diversity patterns, and importantly, survival strategies targeted at local versus regional habitat use. While the core-transient framework has typically been a site-specific designation for species, we suggest that if core and transient species have local versus regional survival strategies across sites, and consistently differ in population-level spatial structure and gene flow, they may also typically exhibit different life-history strategies. Specifically, core species should display relatively low movement rates, low reproductive effort, high ecological specialization and high survival rates compared to transient species, which may display a wider range of traits given that transience may result from source-sink dynamics or from the ability to emigrate readily in a nomadic fashion. We present results from 21 years of capture-mark-recapture data in a diverse rodent community, evaluating the linkages between temporal persistence, local abundance, and trade-offs among life-history traits. Core species at our site conservatively supported our hypotheses, differing in ecological specialization, survival and movement probabilities, and reproductive effort relative to transient species. Transient species exhibited a wider range of characteristics, which likely stems from the multiple processes generating transience in local communities, such as source-sink dynamics at larger regional scales or nomadic life history strategies. We suggest that trait associations among core-transient species may be similar in other systems and warrants further study.


英文关键词core dispersal life-history traits movement small mammal source-sink temporal persistence trade-offs transient
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000364024300016
WOS关键词DESERT RODENT COMMUNITY ; SPECIES RICHNESS ; ABUNDANCE DISTRIBUTIONS ; SATELLITE HYPOTHESIS ; HOME-RANGE ; DISPERSAL ; EVOLUTION ; DIVERSITY ; ECOLOGY ; METACOMMUNITIES
WOS类目Ecology
WOS研究方向Environmental Sciences & Ecology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/186871
作者单位1.Utah State Univ, Dept Biol, Logan, UT 84322 USA;
2.Utah State Univ, Ctr Ecol, Logan, UT 84322 USA;
3.Utah State Univ, Dept Wildland Resources, Logan, UT 84322 USA
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GB/T 7714
Supp, Sarah R.,Koons, David N.,Ernest, S. K. Morgan. Using life history trade-offs to understand core-transient structuring of a small mammal community[J],2015,6(10).
APA Supp, Sarah R.,Koons, David N.,&Ernest, S. K. Morgan.(2015).Using life history trade-offs to understand core-transient structuring of a small mammal community.ECOSPHERE,6(10).
MLA Supp, Sarah R.,et al."Using life history trade-offs to understand core-transient structuring of a small mammal community".ECOSPHERE 6.10(2015).
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