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https://hdl.handle.net/2440/96888
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Type: | Journal article |
Title: | Phylogeography of eastern grey kangaroos, Macropus giganteus, suggests a mesic refugium in eastern Australia |
Author: | Coghlan, B. Goldizen, A. Thomson, V. Seddon, J. |
Citation: | PLoS One, 2015; 10(5):e0128160-1-e0128160-16 |
Publisher: | Public Library of Science |
Issue Date: | 2015 |
ISSN: | 1932-6203 1932-6203 |
Editor: | Janke, A. |
Statement of Responsibility: | Brett A. Coghlan, Anne W. Goldizen, Vicki A. Thomson, Jennifer M. Seddon |
Abstract: | Phylogeographic studies around the world have identified refugia where fauna were able to persist during unsuitable climatic periods, particularly during times of glaciation. In Australia the effects of Pleistocene climate oscillations on rainforest taxa have been well studied but less is known about the effects on mesic-habitat fauna, such as the eastern grey kangaroo (Macropus giganteus). The eastern grey kangaroo is a large mammal that is common and widespread throughout eastern Australia, preferring dry mesic habitat, rather than rainforest. As pollen evidence suggests that the central-eastern part of Australia (southeast Queensland and northern New South Wales) experienced cycles of expansion in mesic habitat with contraction in rainforests, and vice versa during glacial and interglacial periods, respectively, we hypothesise that the distribution of the eastern grey kangaroo was affected by these climate oscillations and may have contracted to mesic habitat refugia. From 375 mitochondrial DNA control region sequences from across the distribution of eastern grey kangaroos we obtained 108 unique haplotypes. Phylogenetic analysis identified two clades in Queensland, one of which is newly identified and restricted to a small coastal region in southern Queensland north of Brisbane, known as the Sunshine Coast. The relatively limited geographic range of this genetically isolated clade suggests the possibility of a mesic habitat refugium forming during rainforest expansion during wetter climate cycles. Other potential, although less likely, reasons for the genetic isolation of the highly distinct clade include geographic barriers, separate northward expansions, and strong local adaptation. |
Keywords: | Animals Macropodidae DNA, Mitochondrial Bayes Theorem Genetics, Population Adaptation, Physiological Phylogeny Haplotypes Molecular Sequence Data New South Wales Queensland Genetic Variation Phylogeography Refugium |
Rights: | © 2015 Coghlan et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited |
DOI: | 10.1371/journal.pone.0128160 |
Grant ID: | http://purl.org/au-research/grants/arc/DP120102693 |
Published version: | http://dx.doi.org/10.1371/journal.pone.0128160 |
Appears in Collections: | Aurora harvest 3 Earth and Environmental Sciences publications |
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hdl_96888.pdf | Published version | 2.62 MB | Adobe PDF | View/Open |
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