Impacts of late Quaternary environmental change on the long-tailed ground squirrel(Urocitellus undulatus)in Mongolia

作     者：Bryan S.McLean Batsaikhan Nyamsuren ANDrey Tchabovsky Joseph A.Cook 

作者机构：University of Florida Florida Museum of Natural History Department of Biology School of Arts and Sciences National University of Mongolia Laboratory of Population Ecology A.N. Severtsov Institute of Ecology and Evolution University of New Mexico Department of Biology and Museum of Southwestern Biology 

出 版 物：《Zoological Research》 (动物学研究（英文）)

年 卷 期：2018年第39卷第5期

页      面：364-372页

核心收录：

学科分类：070903[理学-古生物学与地层学(含：古人类学)] 0709[理学-地质学] 07[理学] 

基　　金：funded primarily by grants from the National Science Foundation(USA DBI-9411976 supplement(1999),DEB-0717214(2009-2012),DEB-1258010(2015-2016)) B.S.M. was partially supported by a Peter Buck Predoctoral Fellowship during the 2015 Mongolian expedition supported by the National Science Foundation(DEB-1258010) the American Society of Mammalogists(ASM Fellowship to B.S.M.) 

主　　题：Central Asia Gobi Desert Great LakesDepression Mongolia Phylogeography 

摘      要：Impacts of Quaternary environmental changes on mammal faunas of central Asia remain poorly understood due to a lack of comprehensive phylogeographic sampling for most *** help address this knowledge gap,we conducted the most extensive molecular analysis to date of the long-tailed ground squirrel （Urocitellus undulatus Pallas 1778） in Mongolia,a country that comprises the southern core of this species＇ *** on material from recent collaborative field expeditions,we genotyped 128 individuals at two mitochondrial genes （cytochrome b and cytochrome oxidase Ⅰ;1797 bp total）.Phylogenetic inference supports the existence of two deeply divergent infraspecific lineages （corresponding to subspecies *** and ***）,a result in agreement with previous molecular investigations but discordant with patterns of range-wide craniometric and external phenotypic *** the widespread western eversmanni lineage,we recovered geographically-associated clades from the：（a） Khangai,（b） Mongolian Altai,and （c） Govi Altai mountain *** structure in *** is consistent with an isolation-by-distance model;however,genetic distances are significantly lower than among subspecies,and intra-clade relationships are largely *** latter patterns,as well as the relatively higher nucleotide polymorphism of populations from the Great Lakes Depression of northwestern Mongolia,suggest a history of range shifts into these lowland areas in response to Pleistocene glaciation and environmental change,followed by upslope movements and mitochondrial lineage sorting with Holocene *** study illuminates possible historical mechanisms responsible for *** genetic structure and contributes to a framework for ongoing exploration of mammalian response to past and present climate change in central Asia.