DOI: 10.5061/dryad.bzkh189nf
title: Data from: Climate change predicts Quaternary extinctions and extant genetic diversity in a threatened Australian lizard

description: Anthropogenic climate change poses a major threat to biodiversity
 worldwide; however, estimating its future impacts remains challenging. To
 predict and mitigate future biodiversity loss, transdisciplinary
 approaches are essential yet seldom applied. Here we integrate population
 genomics, quantitative fossil identifications, species distribution
 modelling, and high-resolution digital morphology to assess how Quaternary
 climate change and projected future climate relate to extinction
 vulnerability of the threatened Australian mountain dragon (Rankinia
 diemensis). We show that past temperature and precipitation changes have
 led to significant range contractions and shifts to higher elevation,
 resulting in geographic and genetic disconnection between modern
 populations. Several low-altitude populations are now extinct or show low
 genetic diversity and high genetic differentiation consistent with genetic
 drift in isolation. Models of future habitat suitability predict further
 climate-related contractions in remnant populations, highlighting the
 urgent need for updated conservation strategies. Our study demonstrates
 the power of integrating next-generation data for reconstructing past and
 modelling future effects of global warming, to design tailored
 conservation strategies for species most at risk of extinction due to
 anthropogenic climate change.
description: # Data from: Climate change predicts Quaternary extinctions and extant
 genetic diversity in a threatened Australian lizard Dataset DOI:
 [10.5061/dryad.bzkh189nf](10.5061/dryad.bzkh189nf) ## Description of the
 data and file structure This supplementary dataset (.tar) contains data
 crucial for reproducing the morphological analyses of our study. It
 includes surface models (.ply) of the crania of the included agamid
 specimens, as well as files including the landmark coordinates (.tps) and
 landmark pairs (.txt). **Files and variables** *File:
 Surface_models_and_landmark_files.tar* **Description:**  This folder
 contains * surface models of *Rankinia* specimens, created for this study,
 in polygon file format (.ply). These files can be viewed and manipulated
 easily using open source software
 (e.g., [MeshLab)](https://www.meshlab.net/) * a text file (.txt)
 containing numbers for matched pairs of landmarks across the line of
 symmetry, which can directly be used in R for the function bilat.symmetry
 in the R package geomorph * Landmark coordinates (.tps) for the whole
 dataset. This file lists the landmark coordinates of each specimen in
 three columns (X,Y,Z coordinates), with each block of coordinates
 representing one specimen following the order of the metadata file (Data
 S2J) which can be found in the supplement of the paper. This file can for
 example be loaded in R using the R function readland.tps in the R package
 geomorph File: Metadata_for_specimens.xlsx **Description:** Metadata for
 the included specimens. The table further contains explanations of
 institutional abbreviations, abbreviations and the cited papers. ######
 ***Table Columns*** * prefix: this column contains institutional
 abbreviations for the included specimens * reg_nr: this column contains
 registration numbers for the included specimens * spec_ID: this column
 contains a specimen specific ID including an abbreviation of the taxonomic
 name (the first three letters of genus and species name) as well as
 institutional collection numbers * species: abbreviation of the taxonomic
 name (the first three letters of genus and species name). This column
 determines to which species a specimen was assigned. Note that this can
 differ from the assignment in the spec_ID column, because the taxonomy of
 specimens was updated according to genetic studies cited in the paper *
 genus: abbreviation of the genus name. This column determines to which
 genus a specimen was assigned * microhabitat: abbreviation of the
 microhabitat. This column determines to which microhabitat a specimen was
 assigned * sex: this column indicates the sex of the specimens * juv: this
 column determines if a specimen was considered juvenile (yes) or not (no)
 * scanner: this column indicates the scanner model used for creating the
 respective scan * resolution (um): scan resolution in micro meters, scan
 parameters of specimens taken from other studies can be found in the
 original publications. In these cases cells are left empty. * source
 voltage (kV): source voltage in kV, scan parameters of specimens taken
 from other studies can be found in the original publications. In these
 cases cells are left empty. * source current (uA): source current in micro
 ampere, scan parameters of specimens taken from other studies can be found
 in the original publications. In these cases cells are left empty. *
 citation: this column indicates if a specimen scan was created in the
 course of the present study. Otherwise the citation is given