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Niche divergence promotes rapid diversification of East African sky island white-eyes (Aves: Zosteropidae).

Cox SC, Prys-Jones RP, Habel JC, Amakobe BA, Day JJ - Mol. Ecol. (2014)

Bottom Line: To explain their elevated diversity within this region, models founded on niche conservatism have been offered, although detailed phylogeographic studies are limited to a few avian lineages.Our results also highlight an underestimation of diversity compared to morphological studies that has implications for their taxonomy and conservation.Molecular dating suggests that the spatially extensive African radiation arose exceptionally rapidly (1-2.5 Ma) during the fluctuating Plio-Pleistocene climate, which may have provided the primary driver for lineage diversification.

View Article: PubMed Central - PubMed

Affiliation: Department of Genetics, Evolution and Environment, University College London, Gower Street, London, WC1E 6BT, UK; Bird Group, Department of Life Sciences, The Natural History Museum, Akeman Street, Tring, Hertfordshire, HP23 6AP, UK.

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Phylogenetic tree of African Zosterops generated using Bayesian inference based on ND3 and Cyt b data. Bayesian posterior probabilities (BPP) are indicated above branches, with ML bootstrap (BS) values below branches. Support values are represented by the symbols: black star >95% BPP/BS, white star >90% BPP/BS, black square >80% BPP/BS, white square >50% BPP/BS. Nodes with <50% support are unmarked. Key nodes are labelled AR (African Radiation), A-A2 and B-B1. Taxa are labelled using full trinomial nomenclature following the taxonomy of Dickinson (2003).
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fig02: Phylogenetic tree of African Zosterops generated using Bayesian inference based on ND3 and Cyt b data. Bayesian posterior probabilities (BPP) are indicated above branches, with ML bootstrap (BS) values below branches. Support values are represented by the symbols: black star >95% BPP/BS, white star >90% BPP/BS, black square >80% BPP/BS, white square >50% BPP/BS. Nodes with <50% support are unmarked. Key nodes are labelled AR (African Radiation), A-A2 and B-B1. Taxa are labelled using full trinomial nomenclature following the taxonomy of Dickinson (2003).

Mentions: Phylogenetic inference based on Bayesian and ML analyses resulted in well-resolved congruent hypotheses in which support for relationships is generally good (Fig.2). Our results identify an African radiation composed of two major clades (Fig.2A, B) that each contains independent oceanic island clades, with the notable exception of the Ancient Indian Ocean white-eyes (AIO) clade that is not a member of this radiation.


Niche divergence promotes rapid diversification of East African sky island white-eyes (Aves: Zosteropidae).

Cox SC, Prys-Jones RP, Habel JC, Amakobe BA, Day JJ - Mol. Ecol. (2014)

Phylogenetic tree of African Zosterops generated using Bayesian inference based on ND3 and Cyt b data. Bayesian posterior probabilities (BPP) are indicated above branches, with ML bootstrap (BS) values below branches. Support values are represented by the symbols: black star >95% BPP/BS, white star >90% BPP/BS, black square >80% BPP/BS, white square >50% BPP/BS. Nodes with <50% support are unmarked. Key nodes are labelled AR (African Radiation), A-A2 and B-B1. Taxa are labelled using full trinomial nomenclature following the taxonomy of Dickinson (2003).
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4255762&req=5

fig02: Phylogenetic tree of African Zosterops generated using Bayesian inference based on ND3 and Cyt b data. Bayesian posterior probabilities (BPP) are indicated above branches, with ML bootstrap (BS) values below branches. Support values are represented by the symbols: black star >95% BPP/BS, white star >90% BPP/BS, black square >80% BPP/BS, white square >50% BPP/BS. Nodes with <50% support are unmarked. Key nodes are labelled AR (African Radiation), A-A2 and B-B1. Taxa are labelled using full trinomial nomenclature following the taxonomy of Dickinson (2003).
Mentions: Phylogenetic inference based on Bayesian and ML analyses resulted in well-resolved congruent hypotheses in which support for relationships is generally good (Fig.2). Our results identify an African radiation composed of two major clades (Fig.2A, B) that each contains independent oceanic island clades, with the notable exception of the Ancient Indian Ocean white-eyes (AIO) clade that is not a member of this radiation.

Bottom Line: To explain their elevated diversity within this region, models founded on niche conservatism have been offered, although detailed phylogeographic studies are limited to a few avian lineages.Our results also highlight an underestimation of diversity compared to morphological studies that has implications for their taxonomy and conservation.Molecular dating suggests that the spatially extensive African radiation arose exceptionally rapidly (1-2.5 Ma) during the fluctuating Plio-Pleistocene climate, which may have provided the primary driver for lineage diversification.

View Article: PubMed Central - PubMed

Affiliation: Department of Genetics, Evolution and Environment, University College London, Gower Street, London, WC1E 6BT, UK; Bird Group, Department of Life Sciences, The Natural History Museum, Akeman Street, Tring, Hertfordshire, HP23 6AP, UK.

Show MeSH
Related in: MedlinePlus