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.authorCastro-Campillo, Alondra.en_US
dc.contributor.authorRamírez Pulido, José.en_US
dc.date.accessioned2005-10-06T16:17:24Z
dc.date.available2005-10-06T16:17:24Z
dc.date.issued2000en_US
dc.description37 p. : ill., 1 map ; 26 cm.en_US
dc.descriptionIncludes bibliographical references (p. 33-37).en_US
dc.description.abstractDifficulties 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.extent606894 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/2246/2193
dc.languageengen_US
dc.language.isoen_US
dc.publisherNew York, NY : American Museum of Natural Historyen_US
dc.relation.ispartofseriesAmerican Museum novitates ; no. 3297en_US
dc.subject.lccQL1 .A436 no.3297 2000en_US
dc.subject.lcshThomomys umbrinusen_US
dc.subject.lcshPocket gophers -- Mexico -- Transverse Volcanic Rangeen_US
dc.subject.lcshRodents -- Mexico -- Transverse Volcanic Rangeen_US
dc.subject.lcshMammals -- Mexico -- Transverse Volcanic Rangeen_US
dc.titleSystematics of the smooth-toothed pocket gopher, Thomomys umbrinus, in the Mexican Transvolcanic Belt. American Museum novitates ; no. 3297en_US
dc.title.alternativeThomomys umbrinus in MTBen_US
dc.typetexten_US

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