Climate change and evolution of the New World pitviper genus Agkistrodon (Viperidae)

@article{Douglas2009ClimateCA,
  title={Climate change and evolution of the New World pitviper genus Agkistrodon (Viperidae)},
  author={Michael E. Douglas and Marlis R. Douglas and Gordon W. Schuett and Louis W. Porras},
  journal={Journal of Biogeography},
  year={2009},
  volume={36}
}
Aim  We derived phylogenies, phylogeographies, and population demographies for two North American pitvipers, Agkistrodon contortrix (Linnaeus, 1766) and A. piscivorus (Lacépède, 1789) (Viperidae: Crotalinae), as a mechanism to evaluate the impact of rapid climatic change on these taxa. 

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References

SHOWING 1-10 OF 136 REFERENCES

Quaternary Refugia and Persistence of Biodiversity

Work (Tzedakiset al.) that illustrates the importance of southern refugia for the persistence of some temperate tree species during the last glacial-interglacial cycles is described, and interdisciplinary efforts to identify other putative refugias could be important in long-term conservation planning.

Fossil snakes of North America : origin, evolution, distribution, paleoecology

  • J. Holman
  • Geography, Environmental Science
  • 2000
This work aims to provide a systematic account of the distribution of fossils in the fossil record over geological time periods and aims to clarify the evolutionary and zoogeographic patterns followed by an explanation of their distribution.

Freshwater paths across the ocean : molecular phylogeny of the frog Ptychadena newtoni gives insights into amphibian colonization of oceanic islands

A synergy of rafting, favourable surface currents and a reduction in salinity of surface waters could allow freshwater paths to open far enough to enable continental flora and fauna to reach these and other isolated oceanic islands.

Phylogeny of the Colubroidea (Serpentes): new evidence from mitochondrial and nuclear genes.

Phylogeography of the salamander genus Pseudobranchus in the southeastern United States.

Earliest Fossil Record of a Pigmy Rattlesnake (Viperidae: Sistrurus Garman)

The earliest fossil record of a Pigmy Rattlesnake (Sistrurus) on the basis of a trunk vertebra from the Late Miocene (Clarendonian NALMA) Pratt Slide local fauna of Nebraska suggests the genus has been present on the central Great Plains for at least five million years.

Phylogeography of the pitviper clade Agkistrodon: historical ecology, species status, and conservation of cantils

The historical ecology of the New World pitviper clade Agkistrodon is investigated, with emphasis on the disjunct subspecies of the cantil, A. bilineatus, and Taylor’s cantil is elevated to species status based on phylogenetic relationships, morphological and molecular divergence, and allopatry.

PRINCIPLES OF PHYLOGEOGRAPHY AS ILLUSTRATED BY FRESHWATER AND TERRESTRIAL TURTLES IN THE SOUTHEASTERN UNITED STATES

▪ Abstract Geographic patterns in mtDNA variation are compiled for 22 species of freshwater and terrestrial turtles in the southeastern United States, and the results are employed to evaluate

Hopping Hotspots: Global Shifts in Marine Biodiversity

The antiquity of the taxa in the modern Indo-Australian Archipelago hotspot emphasizes the role of pre-Pleistocene events in shaping modern diversity patterns.

Comparative molecular phylogeography of North American softshell turtles (Apalone): implications for regional and wide-scale historical evolutionary forces.

A comparative analysis of partial cytochrome b sequences is used to evaluate the evolutionary forces shaping wide-scale phylogeographic patterns of all three North American softshell turtles, resolving a novel, shared genetic break between northern-western and southeastern populations within both A. mutica and A. spinifera.
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