Tempo and mode of evolutionary radiation in iguanian lizards

Luke J. Harmon, James A. Schulte, Allan Larson, Jonathan B. Losos

Research output: Contribution to journalArticlepeer-review

536 Scopus citations

Abstract

Identification of general properties of evolutionary radiations has been hindered by the lack of a general statistical and phylogenetic approach applicable across diverse taxa. We present a comparative analytical framework for examining phylogenetic patterns of diversification and morphological disparity with data from four iguanian-lizard taxa that exhibit substantially different patterns of evolution. Taxa whose diversification occurred disproportionately early in their evolutionary history partition more of their morphological disparity among, rather than within, subclades. This inverse relationship between timing of diversification and morphological disparity within subclades may be a general feature that transcends the historically contingent properties of different evolutionary radiations.

Original languageEnglish
Pages (from-to)961-964
Number of pages4
JournalScience
Volume301
Issue number5635
DOIs
StatePublished - Aug 15 2003

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