Arid
DOI10.1002/ece3.2931
Phylogeography of a widespread small carnivore, the western spotted skunk (Spilogale gracilis) reveals temporally variable signatures of isolation across western North America
Ferguson, Adam W.1; McDonough, Molly M.2,3; Guerra, Gema I.4; Rheude, Margaret5; Dragoo, Jerry W.6; Ammerman, Loren K.4; Dowler, Robert C.4
通讯作者Ferguson, Adam W.
来源期刊ECOLOGY AND EVOLUTION
ISSN2045-7758
出版年2017
卷号7期号:12页码:4229-4240
英文摘要

We analyzed phylogeographic patterns in the western spotted skunk, Spilogale gracilis Merriam, 1890 (Carnivora: Mephitidae) in relation to historical events associated with Pre-Pleistocene Divergence (PPD) and Quaternary climate change (QCC) using mitochondrial DNA from 97 individuals distributed across Western North America. Divergence times were generated using BEAST to estimate when isolation in putative refugia occurred. Patterns and timing of demographic expansion was performed using Bayesian skyline plot. Putative climatic refugia resulting from Quaternary climate change were identified using paleoecological niche modeling and divergence dates compared to major vicariant events associated with Pre-Pleistocene conditions. We recovered three major mitochondrial clades corresponding to western North America (California, Baja, and across the Great Basin), east-central North America (Texas, central Mexico, New Mexico), and southwestern Arizona/northwestern Mexico. Time to most recent common ancestor for S. gracilis occurred similar to 1.36Ma. Divergence times for each major clade occurred between 0.25 and 0.12Ma, with signature of population expansion occurring 0.15 and 0.10Ma. Ecological niche models identified three potential climatic refugia during the Last Interglacial, (1) west coast of California and Oregon, (2) northwestern Mexico, and (3) southern Texas/northeastern Mexico as well as two refugia during the Last Glacial Maximum, (1) western USA and (2) southern Texas/northeastern Mexico. This study supports PPD in shaping species-level diversity compared to QCC-driven changes at the intraspecific level for Spilogale, similar to the patterns reported for other small mammals (e.g., rodents and bats). Phylogeographic patterns also appear to have been shaped by both habitat and river vicariance, especially across the desert southwest. Further, continuing climate change during the Holocene coupled with anthropogenic modifications during the Anthropocene appears to be removing both of these barriers to current dispersal of western spotted skunks.


英文关键词Carnivora desert southwest ecological niche modeling Mephitidae mitochondrial DNA pre-Pleistocene divergence Quaternary climate change refugia
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000403884700016
WOS关键词ECOLOGICAL NICHE MODELS ; MULTILOCUS PHYLOGEOGRAPHY ; GEOGRAPHIC DISTRIBUTIONS ; GENETIC-STRUCTURE ; SONORAN DESERTS ; CLIMATE-CHANGE ; PLEISTOCENE ; EVOLUTION ; REFUGIA ; HISTORY
WOS类目Ecology ; Evolutionary Biology
WOS研究方向Environmental Sciences & Ecology ; Evolutionary Biology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/198496
作者单位1.Texas Tech Univ, Dept Biol, Lubbock, TX 79409 USA;
2.Smithsonian Inst, Natl Museum Nat Hist, Div Mammals, Washington, DC 20560 USA;
3.Smithsonian Conservat Biol Inst, Natl Zool Pk, Ctr Conservat Genom, Washington, DC USA;
4.Angelo State Univ, Dept Biol, San Angelo, TX 76909 USA;
5.US Fish & Wildlife Serv, Twin Cities Ecol Serv Off, Bloomington, MN USA;
6.Univ New Mexico, Museum Southwestern Biol, Albuquerque, NM 87131 USA
推荐引用方式
GB/T 7714
Ferguson, Adam W.,McDonough, Molly M.,Guerra, Gema I.,et al. Phylogeography of a widespread small carnivore, the western spotted skunk (Spilogale gracilis) reveals temporally variable signatures of isolation across western North America[J],2017,7(12):4229-4240.
APA Ferguson, Adam W..,McDonough, Molly M..,Guerra, Gema I..,Rheude, Margaret.,Dragoo, Jerry W..,...&Dowler, Robert C..(2017).Phylogeography of a widespread small carnivore, the western spotted skunk (Spilogale gracilis) reveals temporally variable signatures of isolation across western North America.ECOLOGY AND EVOLUTION,7(12),4229-4240.
MLA Ferguson, Adam W.,et al."Phylogeography of a widespread small carnivore, the western spotted skunk (Spilogale gracilis) reveals temporally variable signatures of isolation across western North America".ECOLOGY AND EVOLUTION 7.12(2017):4229-4240.
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