INTEGRATING PHYLOGENETICS AND ENVIRONMENTAL NICHE MODELS TO EXPLORE SPECIATION MECHANISMS IN DENDROBATID FROGS

INTEGRATING PHYLOGENETICS AND ENVIRONMENTAL NICHE MODELS TO EXPLORE SPECIATION MECHANISMS IN DENDROBATID FROGS. Graham, C. H., Ron, S. R., Santos, J. C., Schneider, C. J., & Moritz, C. August, 2004. Abstract We developed an approach that combines distribution data, environmental geographic information system layers, environmental niche models, and phylogenetic information to investigate speciation processes. We used Ecuadorian frogs of the family Dendrobatidae to illustrate our methodology. For dendrobatids there are several cases for which there is significant environmental divergence for allopatric and parapatric lineages. The consistent pattern that many related taxa or nodes exist in distinct environmental space reinforces Lynch and Duellman's hypothesis that differential selection likely played an important role in species differentiation of frogs in the Andes. There is also some evidence that the Río Esmeraldas basin is a geographic barrier to species distributed in low to middle elevations on the western side of the Andes. Another useful aspect of this approach is that it can point to common environmental parameters that correlate with speciation. For dendrobatids, sister clades generally segr...

Paper bibtex

@misc{catherine_h._graham_integrating_2004,
	type = {research-article},
	title = {{INTEGRATING} {PHYLOGENETICS} {AND} {ENVIRONMENTAL} {NICHE} {MODELS} {TO} {EXPLORE} {SPECIATION} {MECHANISMS} {IN} {DENDROBATID} {FROGS}},
	copyright = {The Society for the Study of Evolution},
	url = {http://www.bioone.org/doi/full/10.1554/03-274},
	urldate = {2009-02-19TZ},
	author = {Catherine H. Graham and Santiago R. Ron and Juan C. Santos and Christopher J. Schneider and Craig Moritz},
	month = aug,
	year = {2004},
	note = {Abstract We developed an approach that combines distribution data, environmental geographic information system layers, environmental niche models, and phylogenetic information to investigate speciation processes. We used Ecuadorian frogs of the family Dendrobatidae to illustrate our methodology. For dendrobatids there are several cases for which there is significant environmental divergence for allopatric and parapatric lineages. The consistent pattern that many related taxa or nodes exist in distinct environmental space reinforces Lynch and Duellman's hypothesis that differential selection likely played an important role in species differentiation of frogs in the Andes. There is also some evidence that the Río Esmeraldas basin is a geographic barrier to species distributed in low to middle elevations on the western side of the Andes. Another useful aspect of this approach is that it can point to common environmental parameters that correlate with speciation. For dendrobatids, sister clades generally segr...},
	keywords = {Dendrobatidae; Ecuador; geographic information systems; modes of speciation; niche modeling; phylogeography}
}

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