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Costs and bene? ts for biodiversity following rat and cat eradication on Te Hauturu-o-Toi/Little Barrier Island
Island and Ocean Ecosystems, BRB
Available Online

Bell, E.

,

Campbell, J.

,

Cassey, P.

,

Ewen, J.G.

,

Green, C.

,

Gri?ths, R.

,

Joyce, L.

,

Rayner, M.

,

Towns, D.

,

Toy, R.

,

Veitch, C.R.

,

Wade, L.

,

Walle, R.

2019
Considerable bene?ts can be achieved for indigenous biodiversity when invasive vertebrates are removed from islands. In New Zealand, two logistically challenging eradications were undertaken, one to remove cats (Felis catus) and the other Paci?c rats (Rattus exulans) from Te Hauturu-o-Toi/Little Barrier Island (Hauturu). Here we document the short- and long-term impacts of these interventions on the biodiversity of Hauturu. We also assess the extent to which predicted outcomes were re?ected in the measured responses for a wide range of species. Short-term impacts of the eradication program encompassed individual mortality for some native species but no measurable impact to populations. In contrast, at least 11 native vertebrates and one native invertebrate species increased in abundance after rat and cat removal. Fifteen of 34 plant species monitored had signi?cantly more seedlings on Hauturu after rat eradication compared with control islands, indicating future changes in forest composition. Several native species previously not recorded on the island were discovered, including the New Zealand storm petrel (Fregetta maoriana) (formerly considered extinct), the forest ringlet butter?y (Dodonidia helmsi) and eight species of aquatic invertebrate. The chevron skink (Oligosoma homalonotum) has been found in increasing numbers and tuatara (Sphenodon punctatus), raised in captivity on the island, are now re-established and breeding in the wild. These results illustrate an island gradually recovering after a long period of modi?cation. We conclude that more success stories such as Hauturu must be told if we are to allay the public’s concerns about such eradication campaigns. And more public support is required if the conservation community is to tackle invasive species at a scale commensurate with the threats they pose.
Towards Greener Taxes and Subsidies in Pacific Island Countries and Territories (PICTs)
BRB

Watkins, Emma

The Restoration of Ecosystem Services and Adaptation to Climate Change (RESCCUE) project is a regional project implemented by the Pacific Community. The overall goal of RESCCUE is to contribute to increasing the resilience of Pacific Island Countries and Territories (PICTs) in the context of global changes. To this end RESCCUE aims at supporting adaptation to climate change (ACC) through integrated coastal management (ICM), resorting especially to economic analysis and economic and financial mechanisms. The RESCCUE project operates both at the regional level and in one to two pilot sites in four countries and territories: New Caledonia, Vanuatu, Fiji and French Polynesia. RESCCUE is funded primarily by the French Development Agency (AFD) and the French Global Environment Facility (FFEM) for a duration of five years (01/01/2014 to 31/12/2018). The project budget is 8.5 million Euros from AFD/FFEM. It is structured around five components: Component 1: Integrated coastal management – supporting ICM implementation through ICM plans, ICM committees, and management activities concerning both terrestrial and marine ecosystems, capacity building and income generating activities. Component 2: Economic analysis – using economic analysis to support coastal management and policy decisions. Component 3: Economic and financial mechanisms – setting up economic and financial mechanisms to generate additional and sustainable funding for ICM: review of options (payment for ecosystem services, taxes, user fees, trust funds, quota markets, offsets, labels…); feasibility studies; implementation; monitoring. Component 4: Capitalization, communication, dissemination of project outcomes in the Pacific – going beyond pilot sites activities in order to have impacts at the regional level, by fostering experience sharing between sites, cross-sectoral expertise, and communication and dissemination of the project outcomes. Component 5: Project management – implementing and coordinating the project, by providing technical assistance, organizing local and regional steering committees, conducting audits and evaluations (mid-term and ex-post), etc. The report is to present interesting illustrative examples. The examples were selected based on the scale of their (potential) environmental, economic and social impacts, and their relevance to the PICT region, to ensure they are representative of the broader region and any lessons learned from an example in one location could be transferable more widely. This report should be seen as a contribution to the future analysis of taxes and subsidies (and their reform) that can help to meet a range of challenges facing the PICT region. It aims to contribute to guiding the region towards greener taxes and subsidies, by building the knowledge and capacity of policy-makers and stakeholders and offering some ideas for the future further greening of instruments to support the achievement of environmental objectives.