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Today: Pacific island people reliant on natural resources 70-80% of the catch from inshore fisheries is used for subsistence purposes

Presentation on Pacific Islands Region: Ecosystem Approach Critical for Climate Change Adaptation

Powerpoint presentation by Stuart Chape on EBA services to the Pacific region.

The Keeling Curve is the name given to the chart of rising atmospheric CO2 levels, as measured at the Mauna Loa Observatory in Hawaii. So far, none of the action taken to tackle climate change has slowed the curve's inexorable rise. Co2 has now reached the symbolic threshold of 400 parts per million (ppm)

Ecosystem-based adaptation and climate change vulnerability in Choiseul Province, Solomon Islands - a synthesis report.

This cost-benefi t analysis is part of the UNEP Ecosystem-based Adaptation Flagship Program and UN-HABITAT Cities and Climate Change Initiative and is intended to guide decision makers in their consideration of various options for climate change adaptation. While the scope of the research and analysis is confi ned to Lami Town, Fiji, a town adjacent to the capital Suva, general lessons and considerations may also be informative at the national level. Furthermore, the lessons learned will be useful for future comparison of options for Ecosystem-based Adaptation (EbA) to climate change in the Pacifi c region.

Breeding success of 5 Cory’s shearwater Calonectris diomedea sub-colonies of Lavezzu Island (Lavezzi Archipelago, Corsica) was checked annually for 25 consecutive years from 1979 to 2004. Between 1989 and 1994, 4 ship rat Rattus rattus controls were performed in several subcolonies. In November 2000, rats were eradicated from Lavezzu Island and its 16 peripheral islets (85 ha) using traps then toxic baits. We compare cost (number of person-hours required in the field) and benefit (Cory’s shearwater breeding success) of control and eradication. The average breeding success doubled when rats were controlled or eradicated (0.82) compared to the situation without rat management (0.45). Moreover, the average breeding success after eradication (0.86) was significantly (11%) higher than after rat controls (0.75). Furthermore, the great variation in breeding success recorded among sub-colonies both with and without rat control declined dramatically after eradication, suggesting that rats had a major impact on breeding success. The estimated effort needed to perform eradication and checking of the permanent bait-station system during the year following eradication was 1360 person-hours. In contrast, rat control was estimated to require 240 or 1440 person-hours per year when implemented by trained and untrained staff, respectively. Within 6 yr, eradication cost is lower than control cost performed by untrained staff and confers several ecological advantages on more ecosystem components than Cory’s shearwater alone. Improved eradication tools such as hand or aerial broadcasting of toxic baits instead of the fairly labour-intensive eradication strategy we used would dramatically increase the economic advantage of eradication vs. control. Therefore, when feasible, we recommend eradication rather than control of non-native rat populations. Nevertheless, control remains a useful management tool when eradication is not practicable.

The South Pacific Regional Environment Programme (SPREP) was originally established as a result of a decision taken at the Conference on the Human Environment in the South Pacific held in Rarotonga in 1982. It was established as a separate entity within the South Pacific Commission (SPC - now the Secretariat of the Pacific Community) based in Noumea, New Caledonia; and formed part of the UNEP Regional Seas Programme.

The evolution and expansion of the human species over the past few hundred thousand years, an infinitesimal fraction of planetary time, now sees us as the dominant life form on Earth. We are dominant because of our intelligence and adaptability, and our need to constantly strive for newer and better ways of doing things. But there are now six billion of us, predicted to increase to 8-10 billion by 2050, and our domination of the planet is paralleled by the massive impact that we have had on the Earth's ecosystems. A recent mapping of the human footprint on the planet has concluded that more than 80% of the Earth's land surface is directly influenced by humans. We consume 40% of the Earth's net primary productivity, 35% of oceanic shelf productivity and 60% of freshwater runoff. As a result, remaining natural landscapes are rapidly being modified and the Earth's biological diversity continues to decline at an alarming rate. The Millennium Ecosystem Assessment (MEA) has found that in the last several decades 20% of the world’s coral reefs were lost and 20% degraded, while 35% of mangrove area has been lost. The MEA also concluded that humans have likely increased the species extinction rate by as much as 1,000 times over background rates typical throughout Earth's history.