Rapid, long-distance dispersal by pumice rafting

Bryan, Scott E., Cook, Alex G, Evans, Jason P, Hebden, Kerry, Hurrey, Lucy, Colls, Peter, Jell, John S, Weatherley, Dion and Firn, Jennifer (2012) Rapid, long-distance dispersal by pumice rafting. PloS one, 7(7), e40583. ISSN (online) 1932-6203

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Abstract

Pumice is an extremely effective rafting agent that can dramatically increase the dispersal range of a variety of marine organisms and connect isolated shallow marine and coastal ecosystems. Here we report on a significant recent pumice rafting and long-distance dispersal event that occurred across the southwest Pacific following the 2006 explosive eruption of Home Reef Volcano in Tonga. We have constrained the trajectory, and rate, biomass and biodiversity of transfer, discovering more than 80 species and a substantial biomass underwent a >5000 km journey in 7-8 months. Differing microenvironmental conditions on the pumice, caused by relative stability of clasts at the sea surface, promoted diversity in biotic recruitment. Our findings emphasise pumice rafting as an important process facilitating the distribution of marine life, which have implications for colonisation processes and success, the management of sensitive marine environments, and invasive pest species.

Item Type: Article
Uncontrolled Keywords: marine populations, propagule dispersal, larval dispersal, French-Polynesia, reef corals, community, eruption, model, connectivity, recruitment
Research Area: Geography and environmental studies
Faculty, School or Research Centre: Faculty of Science, Engineering and Computing > School of Geography, Geology and the Environment
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Depositing User: Automatic Import Agent
Date Deposited: 25 Jul 2012 10:50
Last Modified: 26 Nov 2012 15:21
URI: http://eprints.kingston.ac.uk/id/eprint/23303

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