Pleistocene climatic changes drive expansion and fragmentation in a widespread arid zone specialist, Petrogale lateralis

Pleistocene climatic changes drive expansion and fragmentation in a widespread arid zone specialist, Petrogale lateralis | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL Molecular Ecology This is a preprint and has not been peer reviewed. Data may be preliminary. 25 February 2025 V1 Latest version Share on Pleistocene climatic changes drive expansion and fragmentation in a widespread arid zone specialist, Petrogale lateralis Authors : Sally Potter 0000-0002-5150-7501 [email protected] , Craig Moritz , Kym Ottewell , Emily Roycroft , Anna J. MacDonald , Margaret Byrne , Steve Cooper , David Pearson , and Mark Eldridge Authors Info & Affiliations https://doi.org/10.22541/au.174048712.26494480/v1 236 views 165 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract Organisms living in arid biomes are predicted to be at threat of extinction associated with ongoing climatic and anthropogenic change. Our understanding of species responses to Pleistocene climatic changes within these environments is still limited, particularly in Australia. Here we evaluate the demographic and evolutionary history of a widespread Australian marsupial, the black-footed rock-wallaby ( Petrogale lateralis ) whose contemporary distribution is highly fragmented across the arid biome and offshore islands. Combining genomic data from historical and modern samples we evaluate the divergence history of the five P. lateralis sub-species. The species has experienced a Pleistocene demographic expansion across the vast Australian arid biome, with subsequent fragmentation of populations and sub-species. Populations of the widespread sub-species P. lateralis lateralis are as divergent as sub-species within P. lateralis and there is negligible recent gene flow between most populations/sub-species. Individuals on islands have extremely low genetic diversity and high inbreeding coefficients, in contrast to the naturally fragmented mainland populations. Our results indicate historical connectivity of populations ~160-640 kya, and indications of bottlenecks for both island and some isolated mainland populations, providing important context for conservation management and potential genetic rescue. However, given the large ecological gradient and chromosomal variation within this widespread species, assessment of ecological differences will be important before decisions to mix across geographically distant populations and/or sub-species. Supplementary Material File (lateralis_phylogeography_manuscript_25052025.doc) Download 6.09 MB Information & Authors Information Version history V1 Version 1 25 February 2025 Copyright This work is licensed under a Non Exclusive No Reuse License. Collection Molecular Ecology Keywords arid biome conservation genetics demographic history petrogale lateralis phylogeography Authors Affiliations Sally Potter 0000-0002-5150-7501 [email protected] Macquarie University School of Natural Sciences View all articles by this author Craig Moritz The Australian National University View all articles by this author Kym Ottewell View all articles by this author Emily Roycroft Australian National University View all articles by this author Anna J. MacDonald View all articles by this author Margaret Byrne View all articles by this author Steve Cooper View all articles by this author David Pearson View all articles by this author Mark Eldridge Australian Museum Research Institute View all articles by this author Metrics & Citations Metrics Article Usage 236 views 165 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Sally Potter, Craig Moritz, Kym Ottewell, et al. Pleistocene climatic changes drive expansion and fragmentation in a widespread arid zone specialist, Petrogale lateralis. Authorea . 25 February 2025. DOI: https://doi.org/10.22541/au.174048712.26494480/v1 If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download. For more information or tips please see 'Downloading to a citation manager' in the Help menu . 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