Journal article

Morphological disparity opposes latitudinal diversity gradient in lacertid lizards

Christy A Hipsley, Donald B Miles, Johannes Mueller

BIOLOGY LETTERS | ROYAL SOC | Published : 2014

Abstract

While global variation in taxonomic diversity is strongly linked to latitude, the extent to which morphological disparity follows geographical gradients is less well known. We estimated patterns of lineage diversification, morphological disparity and rates of phenotypic evolution in the Old World lizard family Lacertidae, which displays a nearly inverse latitudinal diversity gradient with decreasing species richness towards the tropics. We found that lacertids exhibit relatively constant rates of lineage accumulation over time, although the majority of morphological variation appears to have originated during recent divergence events, resulting in increased partitioning of disparity within s..

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University of Melbourne Researchers