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- W2897166557 abstract "ESR Endangered Species Research Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsSpecials ESR 37:239-247 (2018) - DOI: https://doi.org/10.3354/esr00928 Assault from all sides: hybridization and introgression threaten the already critically endangered Myuchelys georgesi (Chelonia: Chelidae) A. Georges1,*, R. J. Spencer2, A. Kilian3, M. Welsh1, X. Zhang1 1Institute for Applied Ecology, University of Canberra, ACT 2601, Australia 2Hawkesbury Institute for the Environment and School of Science and Health, Western Sydney University, Locked Bag 1797, Penrith, NSW 2751, Australia 3Diversity Arrays Technology Pty Ltd, University of Canberra, ACT 2601, Australia *Corresponding author: georges@aerg.canberra.edu.au ABSTRACT: Hybridization and introgression between species is remarkably common, even between distantly related taxa. This suggests that the frequency of hybridization between species has been greatly constrained, not by evolutionary divergence in isolation, but by lack of opportunity. This constraint is being relaxed by human-mediated dispersal. Here, we document a case where such dispersal of a widespread species of freshwater turtle (Emydura macquarii) into the highly restricted range of a critically endangered endemic turtle (Myuchelys georgesi) has provided opportunity for the two to hybridize. This has raised concerns about the potential impact of hybridization on the endemic species, and its continued persistence in the face of challenges brought about by habitat alteration, increased competition, disease and genetic pollution. This study serves to highlight the risks associated with human-mediated dispersal, which can bring into contact species that would otherwise never or only rarely have met, and thus provide opportunities for hybridization and introgression between even distantly related species, with uncertain consequences for already threatened species. KEY WORDS: Human-induced dispersal · Genetic pollution · Genetic swamping · Single nucleotide polymorphism Full text in pdf format PreviousNextCite this article as: Georges A, Spencer RJ, Kilian A, Welsh M, Zhang X (2018) Assault from all sides: hybridization and introgression threaten the already critically endangered Myuchelys georgesi (Chelonia: Chelidae). Endang Species Res 37:239-247. https://doi.org/10.3354/esr00928 Export citation RSS - Facebook - Tweet - linkedIn Cited by Published in ESR Vol. 37. Online publication date: November 29, 2018 Print ISSN: 1863-5407; Online ISSN: 1613-4796 Copyright © 2018 Inter-Research." @default.
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- W2897166557 title "Assault from all sides: hybridization and introgression threaten the already critically endangered Myuchelys georgesi (Chelonia: Chelidae)" @default.
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