Range-wide phylogeography of the Little Penguin (Eudyptula minor): evidence of long-distance dispersal

Peucker, Amanda.J, Dann, Peter and Burridge, Christopher. P 2009, Range-wide phylogeography of the Little Penguin (Eudyptula minor): evidence of long-distance dispersal, Auk : a quarterly journal of ornithology, vol. 126, no. 2, pp. 397-408, doi: 10.1525/auk.2009.08055.

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Title Range-wide phylogeography of the Little Penguin (Eudyptula minor): evidence of long-distance dispersal
Formatted title Range-wide phylogeography of the Little Penguin (Eudyptula minor): evidence of long-distance dispersal
Author(s) Peucker, Amanda.J
Dann, Peter
Burridge, Christopher. P
Journal name Auk : a quarterly journal of ornithology
Volume number 126
Issue number 2
Start page 397
End page 408
Total pages 11
Publisher University of California Press
Place of publication Berkeley, Calif.
Publication date 2009-04
ISSN 0004-8038
Keyword(s) Australia
Eudyptula minor
Little Penguin
long-distance dispersal
mitochondrial DNA
Tasman Sea
Summary The Little Penguin (Eudyptula minor), a colonial-nesting seabird that is widespread in New Zealand and southern Australia, has high dispersal potential but exhibits regional variation in morphology, coloration, and breeding phenology. We present a distribution-wide survey of mitochondrial DNA variation in the Little Penguin to document phylogeographic relationships and genetic structuring and to test for concordance with intraspecific taxonomy. Phylogeographic structuring was absent among Australian colonies (27 localities, 94 individuals), but the distribution of haplotypes among colonies was significantly nonrandom (ϕST = 0.110, P < 0.01). The Australian individuals exhibited close phylogenetic relationships with a subset of New Zealand birds (4 localities, 22 individuals), whereas the remaining New Zealand birds (20 localities, 106 individuals) were phylogenetically distinct, with ≥7% sequence divergence, and exhibited greater levels of genetic variation and geographic structuring (ϕST = 0.774, P < 0.05). These patterns are consistent with earlier suggestions of an origin in New Zealand followed by recent colonization of Australia and back-dispersal to New Zealand. Extinction and re-establishment processes may have been important factors in the development of genetic structuring across a range of spatiotemporal scales. The genetic data are consistent with suggestions that a single subspecies exists in Australia, but not with the subspecies distributions within New Zealand that have been suggested on the basis of morphology and coloration.
Language eng
DOI 10.1525/auk.2009.08055
Field of Research 060302 Biogeography and Phylogeography
Socio Economic Objective 970106 Expanding Knowledge in the Biological Sciences
HERDC Research category C1 Refereed article in a scholarly journal
HERDC collection year 2009
Copyright notice ©2009, The American Ornithologists Union
Persistent URL http://hdl.handle.net/10536/DRO/DU:30020654

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