Losing the Bounty? Investigating Species Richness in Isolated Freshwater Ecosystems of Oceania.

dc.contributor.author Schabetsberger, Robert
dc.contributor.author Drozdowski, Gabriele
dc.contributor.author Rott, Eugen
dc.contributor.author Lenzenweger, Rupert
dc.contributor.author Jersabek, Christian D.
dc.contributor.author Fiers, Frank
dc.contributor.author Traunspurger, Walter
dc.contributor.author Reiff, Nicola
dc.contributor.author Stoch, Fabio
dc.contributor.author Kotov, Alexey A.
dc.contributor.author Martens, Koen
dc.contributor.author Schatz, Heinrich
dc.contributor.author Kaiser, Roland
dc.date.accessioned 2012-06-06T00:46:16Z
dc.date.available 2012-06-06T00:46:16Z
dc.date.issued 2009-04
dc.description v. ill. 23 cm.
dc.description Quarterly
dc.description.abstract The South Pacific freshwater ecosystems have never been investigated systematically. Although their ecological value has long been recognized and recommended for protection, little action has been taken so far. Here, we present results of 39 lentic water bodies on 18 islands belonging to seven countries. Temperature, conductivity, and pH were measured and samples of aquatic organisms were collected. Freshwater algae, nematodes, rotifers, ostracods, copepods, cladocerans, and aquatic oribatid mites were identified to genus or species level. Sixty-six percent of all taxa recorded have a cosmopolitan distribution, 14% are circumtropical/tropicopolitan species, and for 20% a restricted distribution predominantly in Australasia has previously been reported. Eleven new copepod and three new ostracod taxa were discovered. Out of 39 water bodies we found at least 17 stocked with nonindigenous fish species. Salinization and uncontrolled introduction of alien fish species may lead to reduced species richness in these remote freshwater ecosystems. The highest species richness was recorded in old, shallow, fish-free softwater lakes at high altitude.
dc.format.extent 33 p.
dc.identifier.citation Schabetsberger R, Drozdowski G, Rott E, Lenzenweger R, Jersabek CD, Fiers F, Traunspurger W, Reiff N, Stoch F, Kotov AA and others. Losing the Bounty? Investigating Species Richness in Isolated Freshwater Ecosystems of Oceania. Pac Sci 63(2): 153-180.
dc.identifier.issn 0030-8870
dc.identifier.uri http://hdl.handle.net/10125/22753
dc.language.iso en-US
dc.publisher Honolulu, University of Hawaii Press
dc.relation.ispartofseries vol. 63, no. 2
dc.subject.lcsh Natural history--Periodicals.
dc.subject.lcsh Science--Periodicals
dc.subject.lcsh Natural history--Pacific Area--Periodicals.
dc.title Losing the Bounty? Investigating Species Richness in Isolated Freshwater Ecosystems of Oceania.
dc.type Article
dc.type.dcmi Text
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