Journal
MOLECULAR PHYLOGENETICS AND EVOLUTION
Volume 94, Issue -, Pages 113-121Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ympev.2015.08.018
Keywords
Ayes; Zosteropidae; Systematics; Island biogeography; Phylogeography; Dispersal
Funding
- NSF [MCB-1150213]
- M.J. Murdock Charitable Trust
- Reed College Biology Undergraduate Research Project grant
- California Academy of Sciences Ornithology and Mammal Gift Funds
Ask authors/readers for more resources
Supertramp species are highly specialized overwater dispersers, and are useful taxa for investigating the influence of dispersal ability on speciation and diversification in island settings. The Louisiade White-eye (Zosterops griseotinctus) is a widespread avian supertramp endemic to Papua New Guinea's offshore islands. We used maximum likelihood and Bayesian inference to reconstruct phylogenetic relationships based on 2 mitochondrial and I nuclear loci (1813 bp total) from 88 individuals representing all 4 named subspecies and the full breadth of the species' range. We found significant geographic and population genetic structure, and support for a major clade containing the coral islets of the central Louisiade Archipelago and outlying Nissan Island. We found evidence of metapopulation structure and gene flow within the Louisiade Archipelago clade, and relatively high genetic distinctiveness of outlying island populations, including the population on volcanically-defaunated Long Island. We reject a hypothesis of panmixia within the Louisiade White-eye despite their long-range dispersal ability, and find evidence of selection against dispersal ability in populations on high-elevation islands where disturbance is rare. Our study represents a rare intraspecies phylogeny of an avian supertramp, and sheds light on patterns of evolution in highly vagile island species. (C) 2015 Elsevier Inc. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available