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Amphibians and reptiles of the Madrean Archipelago of Arizona and New Mexico. (American Museum novitates, no. 3810)

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dc.contributor.author Bezy, Robert L.
dc.contributor.author Cole, Charles J.
dc.date.accessioned 2014-07-30T22:55:41Z
dc.date.available 2014-07-30T22:55:41Z
dc.date.issued 2014-07-30
dc.identifier.uri http://hdl.handle.net/2246/6545
dc.description 23 pages : illustrations, maps ; 26 cm. en_US
dc.description.abstract The Madrean Archipelago in southern Arizona and southwestern New Mexico consists of 22 mountain ranges south of the Mogollon Rim. Herpetofaunal lists for these ranges and a segment of the rim were constructed based on museum specimens from Madrean evergreen woodland, petran montane conifer forest, and interior chaparral. Few or no species have been recorded from these communities in the Sierrita, Little Dragoon, and Big Hatchet mountains, emphasizing the need for additional sampling in the archipelago. A total of 83 species are found in the remaining 20 ranges, with lizards (28) and snakes (35) predominating. No two mountain ranges had the same herpetofauna. Species richness varies from 15 to 44 (mean 28.1). Phenetic analyses of herpetofaunal similarity among the ranges identify three groups: a northern group with eight ranges from the Rincon Mountains to the Pinaleño Mountains to the Sierra Ancha; a southwestern group consisting of the Baboquivari, Santa Rita, Pajarito, and Patagonia mountains; and a southeastern group with seven ranges from the Huachuca and Whetstone mountains to the Animas Mountains; the Mogollon Rim segment is placed as the first "branch" of the phenogram. The analyses place the Patagonia Mountains in the SW group and the Huachuca Mountains in the SE group, although the two are connected by woodland. The Madrean line separating the northern group from the two southern groups approximates the southern limit of interior chaparral. The ranges of the southwestern group are in contact with semitropical Sonoran desert scrub at low elevations, whereas Chihuahuan desert scrub and semidesert grassland surround the southeastern ranges. With few exceptions, published studies of phylogeography within species suggest that divergence among montane populations in the archipelago does not predate the Pleistocene. Phylogeographic analyses using nuclear and mitochondrial gene sequences and including all ranges of the Madrean Archipelago inhabited by a species are needed to determine the extent to which shared historic biogeographic events may underlie the groups of mountain ranges identified on the basis of herpetofaunal similarities in this study. en_US
dc.language.iso en_US en_US
dc.publisher American Museum of Natural History. en_US
dc.relation.ispartofseries American Museum novitates, no. 3810. en_US
dc.subject Amphibians. en_US
dc.subject Reptiles. en_US
dc.subject Madrean Archipelago. en_US
dc.subject Mountain animals. en_US
dc.subject Arizona. en_US
dc.subject New Mexico. en_US
dc.title Amphibians and reptiles of the Madrean Archipelago of Arizona and New Mexico. (American Museum novitates, no. 3810) en_US
dc.title.alternative Madrean Archipelago amphibians and reptiles. 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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