Arid
DOI10.3377/004.045.0212
Late Pleistocene potential distribution of the North African sengi or elephant-shrew Elephantulus rozeti (Mammalia: Macroscelidea)
Nyari, Arpad S.1; Peterson, A. Townsend1; Rathbun, Galen B.2
通讯作者Nyari, Arpad S.
来源期刊AFRICAN ZOOLOGY
ISSN1562-7020
出版年2010
卷号45期号:2页码:330-339
英文摘要

The Sahara Desert was recently proposed as the agent of vicariant speciation in the North African elephant-shrew (order Macroscelidea, Elephantulus rozeti). Based on evidence from molecular dating, however, this speciation event was estimated as having occurred in the Miocene, an early date of origin for an extant species, predating the dramatic climatic fluctuations of the Pleistocene. Here, we explore the possibility of more recent connections of populations of this species across the Sahara Desert that would have facilitated faunal exchange through the Last Glacial Maximum. We used ecological niche modelling based on current climatic datasets and known occurrence points to develop models of present-day potential distributions of E. rozeti and related taxa. Given that the Miocene scenario was proposed based on a single set of evidence, we here provide a partial test based on an independent analysis of present and past potential distributions. Our results corroborate the idea of vicariance, but indicate that distributional patterns and ecological characteristics are consistent with a more recent, post-Pleistocene vicariance across an increasingly arid Sahara. We emphasize the importance of multiple sets of evidence to be brought to bear on complex biogeographical questions, and offer models of palaeoclimatic and palaeoecological distributions and independent sources of such information to complement molecular systematic studies.


英文关键词sengi elephant-shrew vicariant speciation ecological niche modelling Last Glacial Maximum paleoclimate Sahara Desert
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000288057900018
WOS关键词COMPARATIVE PHYLOGEOGRAPHY ; NICHE CONSERVATISM ; MOLECULAR CLOCKS ; FOSSIL RECORD ; CLIMATE ; MODELS ; DIVERGENCE ; PREDICTION ; EVOLUTION ; PROTEINS
WOS类目Zoology
WOS研究方向Zoology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/163020
作者单位1.Univ Kansas, Nat Hist Museum & Biodivers Res Ctr, Lawrence, KS 66045 USA;
2.Calif Acad Sci, Dept Ornithol & Mammal, San Francisco, CA 94118 USA
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Nyari, Arpad S.,Peterson, A. Townsend,Rathbun, Galen B.. Late Pleistocene potential distribution of the North African sengi or elephant-shrew Elephantulus rozeti (Mammalia: Macroscelidea)[J],2010,45(2):330-339.
APA Nyari, Arpad S.,Peterson, A. Townsend,&Rathbun, Galen B..(2010).Late Pleistocene potential distribution of the North African sengi or elephant-shrew Elephantulus rozeti (Mammalia: Macroscelidea).AFRICAN ZOOLOGY,45(2),330-339.
MLA Nyari, Arpad S.,et al."Late Pleistocene potential distribution of the North African sengi or elephant-shrew Elephantulus rozeti (Mammalia: Macroscelidea)".AFRICAN ZOOLOGY 45.2(2010):330-339.
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