The Wetland Book pp 2001-2025 | Cite as

Atolls of the Tropical Pacific Ocean: Wetlands Under Threat

  • Randolph R. ThamanEmail author
Reference work entry


Atolls are small, geographically isolated, resource-poor islands scattered over vast expanses of ocean. There is little potential for modern economic or commercial development, and most Pacific Island atoll countries and communities depend almost entirely on their limited biodiversity inheritances for ecological, economic, and cultural survival in a rapidly globalizing world. Atolls rarely have elevations over 2 or 3 m above sea level and commonly have extensive areas of intertidal flats, mangroves, shallow lagoons, coral reefs, and limited areas of brackish water marshes or landlocked fossil lagoons and are subject to periodic tidal inundation during extreme weather and tidal events, such as “king tides”. Under the Ramsar Convention definition, atolls and their nearshore waters are essentially “wetlands.” Although arguably among the Earth’s “biodiversity coolspots” with the poorest and highly threatened terrestrial biodiversity inheritances on Earth, they are among the last remaining sanctuaries for extensive, but highly threatened populations of breeding seabirds and coral reef-associated biodiversity. Fortunately, under Ramsar, UNESCO World Heritage, and other relevant conventions and initiatives, the conservation, restoration and sustainable use of atoll biodiversity and associated ethnobiodiversity (the uses, knowledge, beliefs, management systems, taxonomies and language that traditional and the scientific communities have for biodiversity) is now clearly on the conservation agenda.


Atolls Biodiversity cool spots Ethnobiodiversity Coastal plants Coral reef diversity Food and livelihood security Global change Lagoons Mangroves Marine biodiversity Pacific Islands Sea birds 


  1. Birdlife International. Eradicating introduced mammals from Clipperton Island led to dramatic recovery of seabirds. Presented as part of the BirdLife State of the world’s birds website. 2012. Available from Accessed 4 Nov 2014.
  2. Bryan Jr EH. Check list of atolls. Atoll Res Bull. 1953;19:1–38.CrossRefGoogle Scholar
  3. C.I. (Conservation International). New Caledonia: home of the world’s largest marine park. 2014. Accessed 21 Feb 2015.
  4. Carlquist S. Hawaii: a natural history. Kauai/Lawai: Pacific Tropical Botanical Garden; 1980.Google Scholar
  5. CGAPS. The silent invasion. Honolulu: Coordinating Group on Alien Pest Species; 1996.Google Scholar
  6. Cohen J. Micronesia: keeping Ant Atoll safe. Nature e-News. 2015. Accessed 22 Feb 2015.
  7. CSP (Conservation Society of Pohnpei). Ant Atoll declared a UNESCO Biosphere Reserve, vol. 7(26). Kolonia, Pohnpei: Kaselehlie Press; 2007. p. 12.Google Scholar
  8. Fosberg (1974) Proceedings of the Second International Coral Reef Symposium, vol. 1. Brisbane, Australia: The Great Barrier Reef Committee.Google Scholar
  9. Gillett R. Tilapia in the Pacific Islands: are there lessons to be learned? Suva: FAO/UNDP Fishery Support Programme; 1989.Google Scholar
  10. Jacques-Bourgeat C. Kauehi, un air de paradis. Air Tahiti. 2015;1:14–33.Google Scholar
  11. Jaluit Conservation Area: Ramsar sites and countries. Accessed 4 Nov 2014.
  12. Kirch PV. Ecology and adaptation of Polynesian agricultural systems. Archaeol Ocean. 1982;17:1–6.CrossRefGoogle Scholar
  13. Kores PJ. Family 32. Orchidaceae. In: Smith AC, editor. Flora Vitiensis nova: a new flora of Fiji (spermatophytes only). Comprehensive indices. Lawai/Kauai: Pacific Tropical Botanical Garden; 1991. p. 322–576.Google Scholar
  14. Koszler N. Restoring biodiversity, one island at a time. Currents. 2010;21:8–13.Google Scholar
  15. Leahy S. Tiny Pacific nations create world’s largest marine parks. The Guardian. 2012; 30 August. Accessed 4 Nov 2014.
  16. MacArthur RH, Wilson EO. The theory of island biogeography. Princeton: Princeton University Press; 1967.Google Scholar
  17. Morin MS, Conant S, Conant P. Laysan and Nihoa Millerbird (Acrocephalus familiaris). In: Poole A, Gill F, editors. The birds of North America. Philadelphia and Washington: The Academy of Naural Sciences and The American Ornithologists Union; 1997. No. 302, p. 1–19.Google Scholar
  18. Myers RF. Micronesian reef fishes: a practical guide to the coral reef fishes of the tropical central and western Pacific. Barrigada: Coral Graphics; 1991.Google Scholar
  19. N’Yeurt ADR, South GR. Biodiversity and biogeography of benthic marine algae in the southwest Pacific, with specific reference to Rotuma and Fiji. Pac Sci. 1997;51:18–28.Google Scholar
  20. Neubauer IL. Is a vast marine sanctuary any use if you can’t police it? Time Magazine. 2014; June 30. Accessed 21 Feb 2015.
  21. Newhouse J. Marine and terrestrial flora of atolls. South Pac Bull. 1980;30:25–30.Google Scholar
  22. Nooto-North Tarawa: Ramsar sites and countries. Accessed 4 Nov 2014.
  23. PIPA (Phoenix Islands Protected Area). 2007.
  24. Pitman RL, Balance LT, Bost C. Clipperton Island: pig sty, rat hole and booby prize. Mar Ornithol. 2005;33:193–4.Google Scholar
  25. PMNM (Papahānaumokuākea Marine National Monument). 2014. Accessed 4 Feb 2015.
  26. Quammen D. The song of the Dodo: Island biogeography in an age of extinction. New York: Touchstone (Simon & Schuster); 1996.Google Scholar
  27. Rodda GH, Fritts TH. The brown tree snake on Pacific islands. Pac Sci Assoc Inf Bull. 1993;45(3–4):1–3.Google Scholar
  28. Sekhran N, Miller S. Papua New Guinea country study on biological diversity. Port Moresby: Department of Environment and Conservation; 1996.Google Scholar
  29. Small CA. Atoll agriculture in the Gilbert and Ellice Islands. Tarawa: Department of Agriculture; 1972.Google Scholar
  30. Steadman DW. Prehistoric extinctions of Pacific Island birds: biodiversity meets zooarchaeology. Science. 1995;267:1123–31.CrossRefPubMedPubMedCentralGoogle Scholar
  31. Stoddart DR. Biogeography of the tropical Pacific. Pac Sci. 1992;46:276–93.Google Scholar
  32. Streets TH. Some account of the natural history of the Fanning Group of islands. Am Nat. 1877;11:65–72.CrossRefGoogle Scholar
  33. Taafaki IJ, Fowler MK, Thaman RR, editors. Traditional medicine of the Marshall Islands: the women, the plants, the treatments. Suva: IPS Publications, University of the South Pacific; 2006.Google Scholar
  34. Teeb’aki K. Republic of Kiribati. In: Scott DA, editor. A directory of wetlands in Oceania. Slimbridge/Kuala Lumpur: International Waterfowl and Wetlands Research Bureau/Asian Wetland Bureau; 1993. p. 199–228.Google Scholar
  35. Thaman RR. Kiribati agroforestry: trees, people and the atoll environment. Atoll Res Bull. 1990;333:1–29.CrossRefGoogle Scholar
  36. Thaman RR. Vegetation of Nauru and the Gilbert Islands: case studies of poverty, degradation, disturbance and displacement. Pac Sci. 1992a;46:128–58.Google Scholar
  37. Thaman RR. Batiri kei Baravi: the ethnobotany of Pacific Island coastal plants. Atoll Res Bull. 1992b;361:1–62.CrossRefGoogle Scholar
  38. Thaman RR. Pacific Island biodiversity on the eve of the 21st century: current status and challenges for its conservation and sustainable use. Pac Sci Assoc Inf Bull. 1999a;51(1–4):1–37.Google Scholar
  39. Thaman RR. Wedelia trilobata: Daisy invader of the Pacific Islands, IAS Technical Report 99/2. Suva: Institute of Applied Science, University of the South Pacific; 1999b.Google Scholar
  40. Thaman RR. Sustaining culture and biodiversity in Pacific Islands with local and indigenous knowledge. Pac Ecol. 2004a;7–8:43–8.Google Scholar
  41. Thaman RR. Cool spots under threat: the conservation status of atoll biodiversity and ethno-biodiversity in the Pacific Islands. In: Lee KJ, Tsai H-M, editors. Changing islands – changing worlds: proceedings of Islands of the world VIII. International Small Islands Studies Association (ISISA); 2004b. p. 60–4.Google Scholar
  42. Thaman RR. Atolls – the “biodiversity cool spots” vs “hot spots”: a critical new focus for research and conservation. Micronesica. 2008;40(1/2):33–61.Google Scholar
  43. Thaman RR, Fihaki E, Fong T. Plants of Tuvalu: Lākau mo mouku o Tuvalu. Suva: University of the South Pacific, Press; 2012. p. 259.Google Scholar
  44. Thaman R. Agrodeforestation and the loss of agrobiodiversity in the Pacific Islands: a call for conservation. In: Jupiter S, Kingsford R, editors. Pacific conservation biology. Special issue on Biodiversity conservation in the Pacific Islands of Oceania, vol. 20(2). 2014. p. 180–92. Scholar
  45. Thaman RR. Wedelia (Sphagneticola trilobata) – daisy invader of the Pacific Islands: the worst weed in the Pacific? In: Frogier P, Mery P, editors. Proceedings of the 11th Pacific Science Inter-congress and 2nd Symposium on French Research in the Pacific, Papeete/Tahiti; 2009. Accessed 17 Mar 2015.
  46. Thaman RR, Clarke WC. Pacific island agroforestry: functional and utilitarian diversity. In: Clarke WC, Thaman RR, editors. Pacific Island agroforestry: systems for sustainability. Tokyo: United Nations University Press; 1993. p. 17–33.Google Scholar
  47. Thaman RR, Whistler WA. A review of uses and status of trees and forests in land-use systems in Samoa, Tonga, Kiribati and Tuvalu with recommendations for future action, Working Paper 5, June 1996 (RAS/92/361). Suva: South Pacific Forestry Development Programme; 1996.Google Scholar
  48. Thaman RR, Neemia U. Tuvalu: National Report for the United Nations Conference on Environment and Development (UNCED), Rio de Janeiro, June 1992. Office of the Prime Minister, Vaiaku, Funafuti, Tuvalu and South Pacific Regional Environment Programme (SPREP), Noumea; 1991.Google Scholar
  49. Thaman RR, Clarke WC, Tebano T, Taniera T, Eritaia B. North Tarawa conservation area: South Pacific biodiversity programme project preparation document. Bikenibeu/Tarawa: Environment Unit, Ministry of Environment and Social Development; 1995.Google Scholar
  50. Thaman RR, Tuxson R, Eritaia B. Kiritimati Atoll conservation area: South Pacific biodiversity programme project preparation document. Bikenibeu/Tarawa: Environment Unit, Ministry of Environment and Social Development; 1997.Google Scholar
  51. Vorrath S. New Caledonia creates world’s largest marine park. Renew economy; 2014. Accessed 4 Nov 2014.
  52. Wane J. Before the flood. Ingenio et Labore: Magazine of the Auckland University; 2005. spring: 10, 12.Google Scholar
  53. Watling D. Fiji: state of birds. Suva: NatureFiji-MareqetiViti; 2013.Google Scholar
  54. Wetterer JK, Banks PC, Laniawe L, Slotterback JW, Brenner G. Exotic ants at high elevations on Mauna Kea, Hawaii. Pac Sci. 1997;52:228–36.Google Scholar
  55. Whistler AW. Vegetation of Samoa and Tonga. Pac Sci. 1992;46:159–78.Google Scholar
  56. Whittaker RJ. Island biogeography: ecology, evolution, and conservation. Oxford: Oxford University Press; 1998.Google Scholar
  57. Wiens HJ. Atoll environment and ecology. New Haven: Yale University Press; 1962.Google Scholar
  58. Wilder GP. The flora of makatea, Bulletin 120. Honolulu: Bernice P. Bishop Museum; 1934.Google Scholar

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© Springer Science+Business Media B.V., part of Springer Nature 2018

Authors and Affiliations

  1. 1.The University of the South PacificSuvaFiji

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