气候变化领域集成服务门户(CCPortal): Extreme streams: species persistence and genomic change in montane insect populations across a flooding gradient

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DOI	10.1111/ele.12918
	Extreme streams: species persistence and genomic change in montane insect populations across a flooding gradient
	Poff N.L.; Larson E.I.; Salerno P.E.; Morton S.G.; Kondratieff B.C.; Flecker A.S.; Zamudio K.R.; Funk W.C.
发表日期	2018
ISSN	1461023X
卷号	21 期号:4
英文摘要	The ecological and evolutionary consequences of extreme events are poorly understood. Here, we tested predictions about species persistence and population genomic change in aquatic insects in 14 Colorado mountain streams across a hydrological disturbance gradient caused by a one in 500-year rainfall event. Taxa persistence ranged from 39 to 77% across sites and declined with increasing disturbance in relation to species' resistance and resilience traits. For taxa with mobile larvae and terrestrial adult stages present at the time of the flood, average persistence was 84% compared to 25% for immobile taxa that lacked terrestrial adults. For two of six species analysed, genomic diversity (allelic richness) declined after the event. For one species it greatly expanded, suggesting resilience via re-colonisation from upstream populations. Thus, while resistance and resilience traits can explain species persistence to extreme disturbance, population genomic change varies among species, challenging generalisations about evolutionary responses to extreme events at landscape scales. © 2018 John Wiley & Sons Ltd/CNRS
英文关键词	Disturbance gradient; extreme event; genomic change; landscape vulnerability; population persistence; resilience traits; resistance traits; stream insects
语种	英语
scopus关键词	Hexapoda; animal; Colorado; flooding; genetics; genomics; insect; river; Animals; Colorado; Floods; Genomics; Insecta; Rivers
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/121346
作者单位	Department of Biology & Graduate Degree Program in Ecology, Colorado State University, Fort Collins, CO 80523, United States; Institute for Applied Ecology, University of Canberra, ACTACT 2617, Australia; Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, NY 14853, United States; Department of Biology, Colorado State University, Fort Collins, CO 80523, United States; Department of Bioagricultural Sciences and Pest Management & Graduate Degree Program in Ecology, Colorado State University, Fort Collins, CO 80523, United States
推荐引用方式 GB/T 7714	Poff N.L.,Larson E.I.,Salerno P.E.,et al. Extreme streams: species persistence and genomic change in montane insect populations across a flooding gradient[J],2018,21(4).
APA	Poff N.L..,Larson E.I..,Salerno P.E..,Morton S.G..,Kondratieff B.C..,...&Funk W.C..(2018).Extreme streams: species persistence and genomic change in montane insect populations across a flooding gradient.Ecology Letters,21(4).
MLA	Poff N.L.,et al."Extreme streams: species persistence and genomic change in montane insect populations across a flooding gradient".Ecology Letters 21.4(2018).