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Systematics of the smooth-toothed pocket gopher, Thomomys umbrinus, in the Mexican Transvolcanic Belt. American Museum novitates ; no. 3297

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dc.contributor.author Castro-Campillo, Alondra. en_US
dc.contributor.author Ramírez Pulido, José. en_US
dc.date.accessioned 2005-10-06T16:17:24Z
dc.date.available 2005-10-06T16:17:24Z
dc.date.issued 2000 en_US
dc.identifier.uri http://hdl.handle.net/2246/2193
dc.description 37 p. : ill., 1 map ; 26 cm. en_US
dc.description Includes bibliographical references (p. 33-37). en_US
dc.description.abstract Difficulties in the subspecific identification of more than 200 specimens of Thomomys umbrinus from the State of Tlaxcala led us to examine the systematic status of the eight subspecies recognized within the Mexican Transvolcanic Belt. We gathered representative samples of those subspecies (≥ 50) during three years of fieldwork. These were analyzed together with samples from other populations not previously assigned to subspecies, as well as voucher specimens from several collections. Thirty-seven variables, obtained from 1145 specimens, were analyzed morphometrically using univariate and multivariate statistics. Within-population variation was highly influenced by sexual dimorphism, and especially by ontogenetic variation; therefore, these two factors should be considered carefully when making systematic and taxonomic decisions. Our analysis of geographic variation determined only two recognizable subspecies of Thomomys umbrinus within the Mexican Transvolcanic Belt: Thomomys umbrinus umbrinus (Richardson, 1829) and Thomomys umbrinus pullus Hall and Villa, 1948.
dc.format.extent 606894 bytes
dc.format.mimetype application/pdf
dc.language eng en_US
dc.language.iso en_US
dc.publisher New York, NY : American Museum of Natural History en_US
dc.relation.ispartofseries American Museum novitates ; no. 3297 en_US
dc.subject.lcc QL1 .A436 no.3297 2000 en_US
dc.subject.lcsh Thomomys umbrinus en_US
dc.subject.lcsh Pocket gophers -- Mexico -- Transverse Volcanic Range en_US
dc.subject.lcsh Rodents -- Mexico -- Transverse Volcanic Range en_US
dc.subject.lcsh Mammals -- Mexico -- Transverse Volcanic Range en_US
dc.title Systematics of the smooth-toothed pocket gopher, Thomomys umbrinus, in the Mexican Transvolcanic Belt. American Museum novitates ; no. 3297 en_US
dc.title.alternative Thomomys umbrinus in MTB en_US
dc.type text en_US


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  • American Museum Novitates
    Novitates (Latin for "new acquaintances"), published continuously and numbered consecutively since 1921, are short papers that contain descriptions of new forms and reports in zoology, paleontology, and geology. New numbers are published at irregular intervals.

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