Historical Biogeography and Body Form Evolution of Ground Squirrels (Sciuridae: Xerinae)

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	Historical Biogeography and Body Form Evolution of Ground Squirrels (Sciuridae: Xerinae)
	Ge, D. Y.1; Liu, X.1,2; Lv, X. F.1; Zhang, Z. Q.3; Xia, L.1; Yang, Q. S.1; Yang, QS (reprint author), Chinese Acad Sci, Inst Zool, Key Lab Zool Systemat & Evolut, Beichen West Rd, Beijing 100101, Peoples R China.
	2014-03-01
发表期刊	EVOLUTIONARY BIOLOGY
ISSN	0071-3260
卷号	41 期号:1 页码:99-114
文章类型	Review
摘要	Xerinae is the most species-rich subfamily of the Sciuridae (Rodentia). This group of animals has a long complex evolutionary history, which witnessed severe environmental changes. In this paper, a comprehensive approach integrating information from fossil records, morphological, molecular and geographical data of extant species, and events of paleoclimate and paleogeography, were used to explore the evolutionary processes in the Xerinae. Xerinae probably originated in Eurasia around the early Oligocene, and dispersed to Africa via the Africa-Eurasia Land Bridge on two occasions during the Miocene, and subsequently evolved into the Protoxerini and African Xerini. The tribe Marmotini derived from a Eurasian ancestor and thrived in North America. Tamias re-occupied Eurasia in the early Miocene, while the distributions of Marmota and 'Spermophilus' genus-groups were restricted to North America at least until the late Miocene. Global cooling and the emergence of grass-dominated ecosystems from 15 Ma are likely to be the main causes for the radiation of Marmotini. The body form of Xerinae displays an allometric mode of evolution, with ground-living taxa, such as Marmota, Cynomys and Xerus notably enlarged, while Tamias has remained slim in body form. To cope with the global environmental changes, particularly the global cooling induced forest degradation and grassland expansion in the late Miocene, most Marmotini developed into true ground squirrels with short tails. The slim body adaptation in Tamias may be related to competition from tree squirrels, or their hoarding behavior, the latter helping them to cope with cold winter.
关键词	Xerinae Phylogeny Evolution Historical Biogeography Body Form
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
关键词[WOS]	DISPERSAL-VICARIANCE ANALYSIS ; MOLECULAR PHYLOGENY ; DIVERGENCE TIMES ; BAYESIAN-INFERENCE ; MAMMAL EVOLUTION ; TROPICAL FOREST ; ABSOLUTE RATES ; FOSSIL RECORD ; BERING STRAIT ; CYTOCHROME-B
收录类别	SCI
语种	英语
项目资助者	Natural Science Foundation of China [31101629, 31272289, 31172065, J1210002]; Key Laboratory of Zoological Systematics and Evolution of the Chinese Academy of Sciences [Y229YX5105]
WOS研究方向	Evolutionary Biology
WOS类目	Evolutionary Biology
WOS记录号	WOS:000331646000010
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/5177
专题	古哺乳动物研究室
通讯作者	Yang, QS (reprint author), Chinese Acad Sci, Inst Zool, Key Lab Zool Systemat & Evolut, Beichen West Rd, Beijing 100101, Peoples R China.
作者单位	1.Chinese Acad Sci, Inst Zool, Key Lab Zool Systemat & Evolut, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China
推荐引用方式 GB/T 7714	Ge, D. Y.,Liu, X.,Lv, X. F.,et al. Historical Biogeography and Body Form Evolution of Ground Squirrels (Sciuridae: Xerinae)[J]. EVOLUTIONARY BIOLOGY,2014,41(1):99-114.
APA	Ge, D. Y..,Liu, X..,Lv, X. F..,Zhang, Z. Q..,Xia, L..,...&Yang, QS .(2014).Historical Biogeography and Body Form Evolution of Ground Squirrels (Sciuridae: Xerinae).EVOLUTIONARY BIOLOGY,41(1),99-114.
MLA	Ge, D. Y.,et al."Historical Biogeography and Body Form Evolution of Ground Squirrels (Sciuridae: Xerinae)".EVOLUTIONARY BIOLOGY 41.1(2014):99-114.

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