Data from: Comparative evolution of an archetypal adaptive radiation: innovation and opportunity in Anolis lizards
de Oca, Adrian Nieto-Montes
de Queiroz, Kevin
Velasco, Julian A.
Gray, Levi N.
Ryan, Mason J.
Published Nov 28, 2017 on Dryad.
Cite this dataset
Poe, Steven et al. (2017). Data from: Comparative evolution of an archetypal adaptive radiation: innovation and opportunity in Anolis lizards [Dataset]. Dryad. https://doi.org/10.5061/dryad.6v5hq
Adaptive radiation is a widely recognized pattern of evolution wherein substantial phenotypic change accompanies rapid speciation. Adaptive radiation may be triggered by environmental opportunities resulting from dispersal to new areas or via the evolution of traits, called key innovations, that allow invasion of new niches. Species sampling is a known source of bias in many comparative analyses, yet classic adaptive radiations have not been studied comparatively with comprehensively sampled phylogenies. In this study we use unprecedented comprehensive phylogenetic sampling of Anolis lizard species to examine comparative evolution in this well-studied adaptive radiation. We compare adaptive radiation models within Anolis and in the Anolis clade and a potential sister lineage, the Corytophanidae. We find evidence for island (i.e., opportunity) effects and no evidence for trait (i.e., key innovation) effects causing accelerated phenotypic evolution within Anolis. However,
island effects are scale dependent: when Anolis and Corytophanidae are analyzed together, no island effect is evident. We find no evidence for an island effect on speciation rate, and tenuous evidence for greater speciation rate due to trait effects. These results suggest the need for precision in treatments of classic adaptive radiations such as Anolis, and further refinement of the concept of adaptive radiation.
Table of morphological data: maximum body length, mean relative hindlimb length, and mean number of scales across the snout.