10.5061/DRYAD.56VF1
Garcia-Porta, Joan
Pompeu Fabra University
Ord, Terry J.
UNSW Sydney
Data from: Key innovations and island colonization as engines of
evolutionary diversification: a comparative test with the Australasian
diplodactyloid geckos
Dryad
dataset
2013
Amphibians & reptiles
Diplodactyloid geckos
Comparative studies
2013-09-17T14:12:22Z
2013-09-17T14:12:22Z
en
https://doi.org/10.1111/jeb.12261
107311 bytes
1
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
The acquisition of key innovations and the invasion of new areas
constitute two major processes that facilitate ecological opportunity and
subsequent evolutionary diversification. Using a major lizard radiation as
a model, the Australasian diplodactyloid geckos, we explored the effects
of two key innovations (adhesive toepads and a snake-like phenotype) and
the invasion of new environments (island colonization) in promoting the
evolution of phenotypic and species diversity. We found no evidence that
toepads had significantly increased evolutionary diversification, which
challenges the common assumption that the evolution of toepads has been
responsible for the extensive radiation of geckos. In contrast, a
snakelike phenotype was associated with increased rates of body size
evolution and, to a lesser extent, species diversification. However, the
clearest impact on evolutionary diversification has been the colonization
of New Zealand and New Caledonia, which were associated with increased
rates of both body size evolution and species diversification. This
highlights that colonizing new environments can drive adaptive
diversification in conjunction or independently of the evolution of a key
innovation. Studies wishing to confirm the putative link between a key
innovation and subsequent evolutionary diversification must therefore show
that it has been the acquisition of an innovation specifically, not the
colonization of new areas more generally, that has prompted
diversification.
datasetList of species (field: "species") with their body size
("max SVL (in mm)") and category (snake-like, padless,
continental pad-bearer, NC pad-bearer or NZ pad-bearer) used for the
analyses. In "source" appears the reference from which body size
was obtained.Genbank_accession_numbersGenbank accession numbers of all the
species used in the produce the time calibrated tree of the Australasian
diplodactyloid geckos.
Australasia