Abstract
The wetlands of 21 countries and territories of the Pacific Islands region are reviewed: American Samoa, Cook Islands, Federated States of Micronesia, Fiji, French Polynesia, Guam, Kiribati, Marshall Islands, Nauru, New Caledonia, Niue, Northern Mariana Islands, Palau, Papua New Guinea, Samoa, Solomon Islands, Tokelau, Tonga, Tuvalu, Vanuatu, and Wallis and Futuna. The regions’ wetlands are classified into seven systems: coral reefs, seagrass beds, mangrove swamps, riverine, lacustrine, freshwater swamp forests and marshes. The diversity of species in each of these groups is at near global maxima at the west of the region, with decline towards the east with increasing isolation, and decreasing island size and age. The community structure is unique in each country, and many have endemic species with the habitat isolation that epitomises this island region. There remain, however, some serious gaps in basic inventory, particularly in freshwater biodiversity. Threats to wetlands include introduced freshwater species, loss of wetlands adjacent to urban growth, downstream effects of mining and land clearance, and over-use of mangrove, seagrass and coral reef resources by predominant subsistence economies that remain in this region. Only five countries are signatories to the Ramsar convention on wetlands, and this only recently with seven sites. Wetland managers have identified the need for community education, baseline surveys and monitoring, better legislation and policy for wetland management, and improved capacity of local communities to allow the wise use of their wetlands.
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Acknowledgements
This review was undertaken during study leave granted by the University of Tasmania. The author expresses thanks to the Secretariat of the Pacific Regional Environment Program, the University of the South Pacific and the International Union for the Conservation of Nature Oceania office for my hosting and allowing my interaction with staff and resources. Particular thanks to Vainuupo Jungblut, Dominique Benzaken, Stuart Chape, François Martel, James Atherton, Batiri Hughes, Randy Thaman, Dick Watling, Taholo Kami and Philippe Gerbeaux. Thanks to Fiona Roark who drew Figs. 2, 3 and 4, Peter Manning who drew Fig. 6, and Norm Duke for advice on mangrove taxonomy and distributions. I am also grateful to Kathy Ewel, an anonymous reviewer, and the series editor Dennis Whigham for useful comments on the paper.
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Ellison, J.C. Wetlands of the Pacific Island region. Wetlands Ecol Manage 17, 169–206 (2009). https://doi.org/10.1007/s11273-008-9097-3
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DOI: https://doi.org/10.1007/s11273-008-9097-3