Extinction risk in endemic marine fishes

Hobbs, J-P. A., Jones, G.P., and Munday, P.L. (2011) Extinction risk in endemic marine fishes. Conservation Biology, 25 (5). pp. 1053-1055.

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Abstract

[Extract] Developing effective management strategies for conserving species requires identifying the species with the greatest probability of extinction and determining why the probabilities are high. In terrestrial systems, endemic island species have the highest rates of extinctions (Frankham 1998; Whittaker 1998). Endemic species have high probabilities of extinction because they typically have both a small range size and low abundance (Gaston 1998). The tendency of local abundance to increase as a species' geographic range increases has been observed across a wide range of taxa (Brown 1984; Gaston et al. 1997; McKinney 1997). However, this relationship has rarely been tested rigorously for marine assemblages because data are lacking.

We studied this relationship with data for reef fishes. Their taxonomy and distribution is reasonably well known and their life history is typical of most marine species. The majority of reef fishes have a dispersive larval phase, followed by recruitment to, or near, a reef, where juveniles settle, grow, mature, and reproduce with high fecundities (Sale 1980). There are thousands of coral reef fishes, including a large number of endemic species, and they attain their greatest diversity in Indonesian waters, where they form the world's most species-rich vertebrate assemblages (Jones et al. 2002).

Item ID: 18770
Item Type: Article (Refereed Research - C1)
ISSN: 1523-1739
Date Deposited: 05 Oct 2011 05:25
FoR Codes: 05 ENVIRONMENTAL SCIENCES > 0502 Environmental Science and Management > 050202 Conservation and Biodiversity @ 60%
06 BIOLOGICAL SCIENCES > 0602 Ecology > 060205 Marine and Estuarine Ecology (incl Marine Ichthyology) @ 20%
05 ENVIRONMENTAL SCIENCES > 0501 Ecological Applications > 050101 Ecological Impacts of Climate Change @ 20%
SEO Codes: 96 ENVIRONMENT > 9608 Flora, Fauna and Biodiversity > 960808 Marine Flora, Fauna and Biodiversity @ 60%
96 ENVIRONMENT > 9603 Climate and Climate Change > 960307 Effects of Climate Change and Variability on Australia (excl. Social Impacts) @ 20%
96 ENVIRONMENT > 9699 Other Environment > 969902 Marine Oceanic Processes (excl. Climate Related) @ 20%
Citation Count from Web of Science Web of Science 2
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