10.5061/DRYAD.D78B42H
Oliver, Paul M.
Griffith University
Ashman, Lauren G.
Australian National University
Bank, Sarah
Australian National University
Laver, Rebecca J.
Australian National University
Pratt, Renae C.
Australian National University
Tedeschi, Leonardo G.
Australian National University
Moritz, Craig C.
Australian National University
Data from: On and off the rocks: persistence and ecological
diversification in a tropical Australian lizard radiation
Dryad
dataset
2019
NGS phylogenetics
Gehyra robusta
Gehyra borroloola
Gehyra dubia
Gehyra pamela
saxicoline versus generalist
rocky ranges
Gehyra koira
gecko lizards
Gehyra ipsa
Gehyra australis
Gehyra catenata
Miocene
2019-03-11T19:02:03Z
2019-03-11T19:02:03Z
en
https://doi.org/10.1186/s12862-019-1408-1
5093779 bytes
1
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Background: Congruent patterns in the distribution of biodiversity between
regions or habitats suggest that key factors such as climatic and
topographic variation may predictably shape evolutionary processes. In a
number of tropical and arid biomes, genetic analyses are revealing deeper
and more localised lineage diversity in rocky ranges than surrounding
habitats. Two potential drivers of localised endemism in rocky areas are
refugial persistence through climatic change, or ecological
diversification and specialisation. Here we examine how patterns of
lineage and phenotypic diversity differ across two broad habitat types
(rocky ranges and open woodlands) in a small radiation of gecko lizards in
the genus Gehyra (the australis group) from the Australian Monsoonal
Tropics biome. Results: Using a suite of approaches for delineating
evolutionarily independent lineages, we find between 26 and 41 putative
evolutionary units in the australis group (versus eight species currently
recognised). Rocky ranges are home to a greater number of lineages that
are also relatively more restricted in distribution, while lineages in
open woodland habitats are fewer, more widely distributed, and, in one
case, show evidence of range expansion. We infer at least two shifts out
of rocky ranges and into surrounding woodlands. Phenotypic divergence
between rocky ranges specialist and more generalist taxa is detected, but
no convergent evolutionary regimes linked to ecology are inferred.
Conclusions: In climatically unstable biomes such as savannahs, rocky
ranges have functioned as zones of persistence, generators of diversity
and a source of colonists for surrounding areas. Phenotypic divergence can
also be linked to the use of differing habitat types, however, the extent
to which ecological specialisation is a primary driver or secondary
outcome of localised diversification remains uncertain.
Gehyra australis group ND2 alignmentMitochondrial ND2 alignment for the
Gehyra australis complex with outgroup, in fasta
format_Gehyra_australis_group_ND2_alignment.fastaExon-capture alignments
for IQ-tree analysisExon-capture 1634 gene super-matrix alignment for
IQ-tree analysis of the Gehyra australis
complexec_alignments_1634.tar.gzExon-capture alignments for ASTRAL-II
analysisExon-capture alignments, reduced subset of 569 loci, used for
ASTRAL-II analysis of the Gehyra australis
complexec_alignments_569.tar.gz50 loci alignments for StarBEAST2
analysis50 loci alignments for StarBEAST2 analysis of the Gehyra australis
complexstarbeast2_australis_alignments_50.zipMorphology raw measurement
dataMorphology raw measurement data for the Gehyra australis
complexmorphology_australis_complex_data.xlsx
Western Australia
Cape York
Australian Monsoonal Tropics
Gulf of Carpentaria
Northern Territory
Kimberley
Queensland
Top End