Evolutionary and Biogeographic Origins of High Tropical Diversity in Old World Frogs (Ranidae). Wiens, J. J., Sukumaran, J., Pyron, R. A., & Brown, R. M. April, 2009. Differences in species richness between regions are ultimately explained by patterns of speciation, extinction, and biogeographic dispersal. Yet, few studies have considered the role of all three processes in generating the high biodiversity of tropical regions. A recent study of a speciose group of predominately New World frogs (Hylidae) showed that their low diversity in temperate regions was associated with relatively recent colonization of these regions, rather than latitudinal differences in diversification rates (rates of speciation-extinction). Here, we perform parallel analyses on the most species-rich group of Old World frogs (Ranidae; ∼1300 species) to determine if similar processes drive the latitudinal diversity gradient. We estimate a time-calibrated phytogeny for 390 ranid species and use this phytogeny to analyze patterns of biogeography and diversification rates. As in hylids, we find a strong relationship between the timing of colonization of each region and its current diversity, with re...
Paper bibtex @misc{john_j._wiens_evolutionary_2009,
type = {research-article},
title = {Evolutionary and {Biogeographic} {Origins} of {High} {Tropical} {Diversity} in {Old} {World} {Frogs} ({Ranidae})},
url = {http://www.bioone.org/doi/abs/10.1111/j.1558-5646.2009.00610.x},
urldate = {2009-08-14TZ},
author = {John J. Wiens and Jeet Sukumaran and R. Alexander Pyron and Rafe M. Brown},
month = apr,
year = {2009},
note = {Differences in species richness between regions are ultimately explained by patterns of speciation, extinction, and biogeographic dispersal. Yet, few studies have considered the role of all three processes in generating the high biodiversity of tropical regions. A recent study of a speciose group of predominately New World frogs (Hylidae) showed that their low diversity in temperate regions was associated with relatively recent colonization of these regions, rather than latitudinal differences in diversification rates (rates of speciation-extinction). Here, we perform parallel analyses on the most species-rich group of Old World frogs (Ranidae; ∼1300 species) to determine if similar processes drive the latitudinal diversity gradient. We estimate a time-calibrated phytogeny for 390 ranid species and use this phytogeny to analyze patterns of biogeography and diversification rates. As in hylids, we find a strong relationship between the timing of colonization of each region and its current diversity, with re...},
keywords = {Amphibians; biogeography; phylogeny; speciation; species richness}
}
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