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Coalescent modelling suggests recent secondary-contact of cryptic penguin species


Grosser, S and Burridge, CP and Peucker, AJ and Waters, JM, Coalescent modelling suggests recent secondary-contact of cryptic penguin species, PLoS ONE, 10, (12) Article e0144966. ISSN 1932-6203 (2015) [Refereed Article]


Copyright Statement

Copyright 2015 Grosser et al. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0)

DOI: doi:10.1371/journal.pone.0144966


Molecular genetic analyses present powerful tools for elucidating demographic and biogeographic histories of taxa. Here we present genetic evidence showing a dynamic history for two cryptic lineages within Eudyptula, the world's smallest penguin. Specifically, we use a suite of genetic markers to reveal that two congeneric taxa ('Australia' and 'New Zealand') co-occur in southern New Zealand, with only low levels of hybridization. Coalescent modelling suggests that the Australian little penguin only recently expanded into southern New Zealand. Analyses conducted under time-dependent molecular evolutionary rates lend support to the hypothesis of recent anthropogenic turnover, consistent with shifts detected in several other New Zealand coastal vertebrate taxa. This apparent turnover event highlights the dynamic nature of the regionís coastal ecosystem.

Item Details

Item Type:Refereed Article
Keywords:secondary contact, penguin, DNA, coalescent analysis
Research Division:Biological Sciences
Research Group:Evolutionary biology
Research Field:Biogeography and phylogeography
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the environmental sciences
UTAS Author:Burridge, CP (Associate Professor Christopher Burridge)
ID Code:105366
Year Published:2015
Web of Science® Times Cited:37
Deposited By:Zoology
Deposited On:2015-12-21
Last Modified:2017-11-01
Downloads:187 View Download Statistics

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