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Evolution of rattlesnakes (Viperidae; Crotalus) in the warm deserts of western North America shaped by Neogene vicariance and Quaternary climate change
During Pleistocene, the Laurentide ice sheet rearranged and diversified biotic distributions in eastern North America, yet had minimal physical impact in western North America where lineageExpand
Climate change and evolution of the New World pitviper genus Agkistrodon (Viperidae).
Both species of Agkistrodon can be used as suitable ectothermic models to gauge impacts of future climate change as well as phylogenies, phylogeographies, and population demographies for two North American pitvipers. Expand
Genealogical Concordance between Mitochondrial and Nuclear DNAs Supports Species Recognition of the Panamint Rattlesnake (Crotalus mitchellii stephensi)
Abstract The Speckled Rattlesnake (Crotalus mitchellii) is a polytypic taxon presently composed of five subspecies that range across southwestern North America, including the Baja Peninsula andExpand
Distribution and Variation in the Treeboa Corallus annulatus (Serpentes: Boidae)
The characters upon which subspecies of Corallus annulatus and C. blombergi were described were shown to be of no diagnostic value and are considered to be species that are genuinely uncommon, although not necessarily rare. Expand
A taxonomic reevaluation and conservation assessment of the common cantil , Agkistrodon bilineatus ( Squamata : Viperidae ) : a race against time 1
—Several lines of evidence suggest that numerous populations of cantils (Agkistrodon bilineatus, A. taylori), New World pitvipers with a distribution in Mesoamerica, are in rapid decline. We examinedExpand
A New Species of Leptodactylus from the Cloud Forests of Honduras
This new species occurs at the highest known elevation of any member of the genus Leptodactylus and has a dark interorbital blotch, postorbital bar, and lateral body stripe, and a smooth dorsum. Expand
A New Species of Hyla from the Highlands of Honduras and El Salvador
nior author initiated a faunal survey in the highest reaches of the southern Sierra de Opalaca at Zacate Blanco, a village about nine airline kilometers northwest of La Esperanza in the department ofExpand