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Status of the coral reefs in the South west Pacific: Fiji, New Caledonia, Samoa, Solomon Islands, Tuvalu and Vanuatu
Biodiversity Conservation
Available Online

Mackay Kenneth

,

Morris Cherie

2008
Fiji, New Caledonia, Vanuatu, Solomon Islands, Samoa and Tuvalu report monitoring data for this report, with data from a broad range of observers (scientists, students, dive guides and communities); Nauru has not conducted recent monitoring; Coral cover has changed since the 2004 report due to effective management (positive), or local disturbances, coral predation and natural disasters (negative). Average coral cover at monitoring sites was 45% in Fiji; 27% in New Caledonia; 43% in Samoa; 30% in Solomon Islands; 65% in Tuvalu; and 26% in Vanuatu; Monitoring observations over 9-10 years in Fiji and New Caledonia indicate that these reefs have coped reasonably well with natural and human stressors without catastrophic changes; Densities of edible fish and invertebrates remained generally low (0-10/100m2) in 4 countries reflecting high subsistence and commercial fishing pressure. Butterflyfish, parrotfish, surgeonfish and damselfish were generally most dominant. High densities of parrotfish were reported from 4 countries; Socioeconomic monitoring is conducted in Fiji, Samoa and Solomon Islands. Greatest activity is by the Fiji Locally Marine Managed Area (FLMMA) network at 270 villages across all Fiji provinces. Most households harvest marine resources for subsistence and partially for sale, with few commercial fishers. In Samoa, more people eat canned fish than fresh fish, possibly because of decreased fish stocks in the last 10 years. In the Solomon Islands, some traditional managed systems have collapsed due to poor understanding of fisheries and resource management issues or poor national regulations. Mangrove destruction and greater fishing pressure are reducing family incomes;
A reassessment of factors, particularly Rattus rattus L., That influenced the decline of endemic birds in the Hawaiian Islands / I.A.E. Atkinson
BRB

Atkinson, I.A.E.

1977
Between 1892 and 1930, 58 percent (30 taxa) of Hawaiian endemic forest birds either were greatly reduced or became extinct. The order in which the islands experienced major declines ofseveral forest birds is Oahu (ca. 1873-1887), Hawaii (1892-1900), Mo10kai (1893-1907), Maui (18941901), Kauai (after 1900), and Lanai (1926-1932). Loss of habitat, reduced food supply, introduced avian diseases, as well as predation by man, feral cats, mongooses, and Norway rats (Rattus norvegicus) all appear to have reduced some species ofbirds, but none ofthese factors adequately explains the accelerated rates ofdecline offorest birds that occurred after 1892. Although it has been assumed that roofrats (Rattus rattus) reached Hawaii with the first European ships at the end of the 18th century, there is circumstantial evidence, independent of the bird decline data, that indicates that this rat did not arrive until after 1840, probably between 1870 and 1880. The hypothesis is advanced that after its establishment on Oahu in the 1870s, R. rattus spread to the remaining large islands in the group, resulting in a stepwise accelerated decline offorest birds on each island in turn. Hawaii thus parallels some other Pacific islands where major reductions of birds have followed the establishment of R. rattus. The need for precautions to prevent rats from reaching rat-free islands in the Hawaiian group is emphasized.