T
Todd R. Jackman
Researcher at Villanova University
Publications - 69
Citations - 4686
Todd R. Jackman is an academic researcher from Villanova University. The author has contributed to research in topics: Gekkonidae & Monophyly. The author has an hindex of 31, co-authored 69 publications receiving 4318 citations. Previous affiliations of Todd R. Jackman include Washington University in St. Louis & National Museum of Natural History.
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Journal ArticleDOI
Contingency and Determinism in Replicated Adaptive Radiations of Island Lizards
Jonathan B. Losos,Todd R. Jackman,Todd R. Jackman,Allan Larson,Allan Larson,Kevin de Queiroz,Kevin de Queiroz,Lourdes Rodrı́guez-Schettino,Lourdes Rodrı́guez-Schettino +8 more
TL;DR: This paper examined the evolutionary radiation of Anolis lizards on the four islands of the Greater Antilles and found that the same set of habitat specialists, termed ecomorphs, occurs on all four islands.
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Niche lability in the evolution of a Caribbean lizard community
Jonathan B. Losos,Manuel Leal,Manuel Leal,Richard E. Glor,Kevin de Queiroz,Paul E. Hertz,Lourdes Rodríguez Schettino,Ada Chamizo Lara,Todd R. Jackman,Allan Larson +9 more
TL;DR: It is found that evolutionary divergence overcomes niche conservatism: closely relatedspecies are no more ecologically similar than expected by random divergence and some distantly related species are Ecologically similar, leading to a community in which the relationship between ecological similarity and phylogenetic relatedness is very weak.
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Phylogenetic Relationships and Tempo of Early Diversification in Anolis Lizards
TL;DR: The results suggest that rapid diversi- �cation early in the evolutionary history of anoles explains why numerous researchers have had difficulty reconstructing well-supported dichotomous phylogenetic trees for anoles.
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Repeated Origin and Loss of Adhesive Toepads in Geckos
TL;DR: A multigene phylogeny of geckos is presented, including 107 of 118 recognized genera, and it is determined that adhesive toepads have been gained and lost multiple times, and remarkably, with approximately equal frequency.
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Evidence for Gondwanan vicariance in an ancient clade of gecko lizards
TL;DR: A phylogeny of the sphaerodactyl geckos and their closest relatives is generated and divergence date estimates are used to inform a biogeographical scenario regarding Gondwanan relationships and assess the roles of vicariance and dispersal in shaping the current distributions of the New World sphaingroup gecko and their nearest Old World relatives.