The world is facing a biodiversity crisis. Nowhere is that more apparent than on oceanic islands where invasive species are a major threat for island biodiversity. Rats are one of the most detrimental of these and have been the target of numerous eradication programmes; a well-established conservation tool for island systems.
The impacts of house mice (Mus musculus), one of four invasive rodent species in New Zealand, are only clearly revealed on islands and fenced sanctuaries without rats and other invasive predators which suppress mouse populations, influence their behaviour, and confound their impacts. When the sole invasive mammal on islands, mice can reach high densities and influence ecosystems in similar ways to rats.
Following the incursion of rats (Rattus rattus) on Taukihepa (Big South Cape Island; 93.9 km²) off southern New Zealand in 1963, and the subsequent extirpation of several endemic species, the New Zealand Wildlife Service realised that, contrary to general belief at the time, introduced predators do not reach a natural balance with native species and that a safe breeding habitat for an increasing number of at risk species was urgently needed.
Rat eradication is a highly effective tool for conserving biodiversity, but one that requires considerable planning eff ort, a high level of precision during implementation and carries no guarantee of success. Overall, rates of success are generally high but lower for tropical islands where most biodiversity is at risk. We completed a qualitative comparative review on four successful and four unsuccessful tropical rat eradication projects to better understand the factors influencing the success of tropical rat eradications and shed light on how the risk of future failures can be minimised.
The Baja California Pacifc Islands, Mexico, are globally important breeding sites for 22 seabird species and subspecies. In the past, several populations were extirpated or reduced due to invasive mammals, human disturbance, and contaminants. Over the past two decades, we have removed invasive predators and, for the last decade, we have been implementing a Seabird Restoration Programme on eight groups of islands: Coronado, Todos Santos, San Martín, San Jerónimo, San Benito, Natividad, San Roque, and Asunción.
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.
Bioenergy occupies a unique position at the nexus of energy, environment, climate change and rural development agendas. Consequently, bioenergy and biofuels in particular, have seen
record levels of support in the form of subsidies, mandates and investments as governments seek to maximize the perceived synergies between the various opportunities offered by bioenergy. Whilst it is true that well- planned bioenergy development can reduce greenhouse gas emissions from a range of sources, increase rural incomes, reduce waste, improve access
Kwajalein is a crescent-shaped atoll that lies between 09°25' and 08°40'N and between 166°50' and 167°45'E, near the center o£ the western (Ralik) chain of the Marshall Islands (Figure 1). Composed of more than 90 islets, largely uninhabited, Kwajalein Atoll extends about 75 miles from southeast to northwest. It has a land area of about 6 square miles (3,854 acres) (Global Associates 1987), an increase of about 263 acres over the original area that was brought about by filling of land on Kwajalein, Roi-Namur, and Meek Islands.
Available online
This report provides a comprehensive yet simple guide to the construction and use of a Geographic Information System (GIS) for collating, analysing, updating and managing data in wildlife management or research projects. The spatial analysis of yellow-eyed penguin (hoiho, Megadyptes antipodes) nest site data
Recent studies have shown that many coral reefs are capable of
yielding a total fish catch of 18- 24 T.Km-2 (Hill, 1978; Alcala,
1981; Munro, 1987). There are, however, no estimates for the
productivity and yield of fishes associated with coral reefs in
French Polynesia. This study was designed to determine the fisheries yield from a part of the fringing reef on the island of Moorea, French Polynesia.
Available online
Call Number: [EL]
Physical Description: 22 p.
Island ecosystems have proven to be particularly sensitive to
human disturbances (Bourne 1975; Byrne 1980; Jarvis 1979). This was first noted by Charles Darwin in the explanation of his theory of natural selection (Byrne 1980). Since then, qualities of insular species have been examined by various authors in an attempt to understand the basis for island vulnerability.
Available online
Call Number: [EL],VF 2783
Physical Description: 34 p.
Christmas island3, the largest atoll in the world in terms of
Coral reefs are vital ecosystems, providing a source of income, food arid coastal protection for millions of people; arid recent studies have shown that coral reef goods and services provide an annual net benefit of US$30 billion to economies worldwide
Samoa has retained the same ruling governing party of the last 20 years as its government for the next five years after the general elections in early March 2006. After years in power since 1985, the Human Rights Political Party (HRPP) continues to advance its 9 focus on enhancing the macroeconomic stability of the country. Apart from reliance on traditional mainstays such as agriculture and remittances, it targeted growth led by the construction, other manufacturing, hotels and restaurants, transport and communication sectors.
France has an important role and extensive responsibilities in protecting the world's oceans. It is the world's third
largest maritime power with an Exclusive Economic Zone (EEZ) covering 11 million km2, and has the fourth
largest area of coral reefs representing biodiversity hotspots.
According to a recent Nature Conservancy assessment, only 1% of marine areas (as against 12 % of all land
areas) are officially protected today, despite government commitments under the UN Convention on Biological
Microbenthos and macrobenthos were quantitatively studied at 62 stations distributed regularly over the Uvea Atoll lagoon (850 km2). Sampling was performed using both SCUBA and a 0.1 m2 Smith Mclntyre grab. Mean estimates of ATP, chlorophyll a and phaeopigments were 297.3ng/cm2, 77.01 mg/m2 and 35.28 mg/m2
respectively. The mean macrobenthic biomass was 4.14 gAFDW/m2 of which the macrophytobenthos accounts for 39%. The benthic biomass decreased from the coast to the deepest parts of the lagoon. Macrophytes were most abundant in the coastal area
This brochure demonstrates how measures and policies can be shaped to simultaneously address climate change, biodiversity loss and poverty. It identifies opportunities for synergies and mutual enhancement of the objectives of international agreements, particularly the United Nations Framework Convention on Climate Change (UNFCCC) and the Convention on Biological Diversity (CBD), as well as decisions taken by the United Nations (UN) General Assembly following the recommendations of the UN Forum on Forests (UNFF).
Available online|1 copy
This discussion paper makes a case for the glass half full view of Copenhagen. To sustain this optimism, this paper seeks to move the focus from the outcomes of one (unprecedented) international meeting and draw conclusions from the more important trends in climate policy globally. Given the apparent disconnect between these positive trends and the slow progress within the negotiations, this paper calls for a 'new multilateralism' aimed at unlocking ambitious global action on climate change.
Available online
Call Number: [EL]
The UN Development Assistance Framework for the Pacific Subregion (UNDAF) represents the first regionwide response to the UN operational reform process, and is a product of several partnerships in development, including between two UN Country Teams in Fiji and Samoa covering a total of 15 UN agencies, offices and programmes3, and between the UN and the governments of 14 Pacific island countries.
Available online|each book hold dvd
Call Number: [EL],550 SOP
Physical Description: various pagings ; 29 cm