Journal article
Dispersal pathways across the Pacific: The historical biogeography of Astelia s.l. (Asteliaceae, Asparagales)
JL Birch, SC Keeley
Journal of Biogeography | WILEY | Published : 2013
DOI: 10.1111/jbi.12169
Abstract
Aim: To investigate the origin and pathways of expansion of the austral genus Astelia s.l. (Asteliaceae, Asparagales) and to reconstruct the historical biogeography of the genus across the Pacific. Location: Australia, New Zealand, New Caledonia, New Guinea, South America, Pacific archipelagos (Austral Islands, Fiji, Hawaii, Marquesas Islands, New Caledonia, Samoa, Society Islands and Vanuatu) and the Mascarene Islands. Methods: Biogeographical patterns were determined using the Asteliaceae phylogeny, divergence dating, and ancestral area reconstruction techniques. All Asteliaceae genera, including 46 of 47 ingroup taxa, were sampled. Divergence times were estimated using a relaxed molecular..
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Awarded by National Science Foundation DDIG
Funding Acknowledgements
The authors thank the individuals and organizations that provided collection permits, field assistance, and loan of herbarium specimens. Silica-preserved material was kindly provided for inclusion of taxa in the phylogeny by Australian National Botanical Garden, Missouri Botanical Garden, Otari Native Botanic Garden, Royal Botanic Gardens, Kew, and by individuals J.-Y. Meyer, T. Motley, D. Strasberg and A. Whistler. Funding for field work and sequencing was provided to J.L.B. by the American Society of Plant Taxonomists, Explorers Club, National Science Foundation DDIG (DEB-0910402), Sigma-Xi, University of Hawaii Foundation and multiple affiliates of the University of Hawaii at Manoa (UHM) including the Botany Department, Ecology, Evolution, and Conservation Biology Program, Graduate Division, Graduate Student Organization, and the Office of Community and Alumni Relations. J.L.B. thanks C. Morden, S. Keeley and B. Simpson and their students for discussions that improved understanding of biogeographical theory and methods. This manuscript benefited from the comments of R. Cowie, D. Lorence, C. Morden, A. Sherwood and four anonymous referees.