The Fijian island of Taveuni is being proposed as a potential World Heritage Site because much of its flora and fauna, including many endemic species, remains intact. The greatest threat facing Taveuni's wildlife is a potential incursion by the invasive small Indian mongoose Herpestes javanicus from nearby islands, and anecdotal reports have suggested that the mongoose may already be present. To determine if mongooses were present on Taveuni 40 traps were set in two locations close to the main ports of entry, in typical mongoose habitat. Normally mongooses are easily caught if they are present, but in 204 trap nights none were captured, although eight feral cats and 11 rats were caught. None of the 31 people questioned from around the island had seen the mongoose. A list of seven recommendations is provided for a management strategy to prevent any possible incursion by mongooses and to eradicate any arrivals at the earliest opportunity.

The eastern population of the northern bald ibis Geronticus eremita had been presumed extinct following the loss of the colony in Birecik, Turkey, in 1989. However, occasional sightings of birds in Yemen, Eritrea, Saudi Arabia and Israel during the 1980s and 1990s suggested that there was still a colony somewhere in the Middle East. Intensive field surveys in spring 2002, based on the knowledge of Bedouin nomads and local hunters, revealed that the species has never become completely extinct on the Syrian desertic steppe. Following systematic searches 15 old nesting sites were found, one of them still hosting an active breeding colony of seven individuals. The species appears to have been relatively common in the area until 20 years ago, when a combination of overexploitation of rangelands and increasing hunting pressure initiated a dramatic decline.

The Angel de la Guarda deer mouse Peromyscus guardia on Estanque Island, in the Angel de la Guarda archipelago of the Gulf of California, was probably driven to extinction by a single introduced domestic cat. P. guardia was trapped on the island in October 1995, at which time the species was still relatively abundant. In 1998 a domestic cat was spotted on the island; no deer mice were found at that time nor during subsequent field work in 1999 and 2001. In 1998, c. 100 cat scats were collected, 2% of which contained P. guardia bone remains and 90% P. guardia hair. The cat, which was eradicated in 1999, was the only introduced predator on the island. Our results confirm the extreme vulnerability of island rodent populations to the introduction of alien mammalian predators. To our knowledge, apart from the extermination of Stephens Island wren Xenicus lyalli in New Zealand in 1894 by the lighthouse keeper's cat, this is the first report of the destruction of the total population of an insular species by a single cat. With two of the three subspecies of P. guardia now extinct the only potentially extant population is on the larger Angel de la Guarda Island, where the species was last seen in 1991. A comprehensive survey of the island is required, with subsequent action for the species recovery and conservation if it is found to be extant.

This paper reports the first systematic survey of the marine turtles of the 80 km of Gambian coastline, and brings together new data and all past records and reports of marine turtles in The Gambia. Green turtles Chelonia mydas are the most abundant turtles and this is the only species so far observed nesting in The Gambia, with peak nesting between August and October. Although 75% (60 km) of The Gambian coastline appears to be suitable for turtle nesting, most nesting activity is confined to the southern coastline. Offshore foraging habitat is apparently extensive. Strandings of green turtles, olive ridley turtles Lepidochelys olivacea, leatherback turtles Dermochelys coriacea and hawksbill turtles Eretmochelys imbricata have been recorded, but we were unable to find evidence for loggerhead turtles Caretta caretta. Threats are mainly of human origin, and include illegal harvesting of eggs, juveniles and adults, as well as mortality as fisheries bycatch, including trawling. One stranded green turtle apparently had fibropapilloma disease. The major threat to nesting habitats is erosion and unregulated development of the coast for tourism. Marine turtles are fully protected under Gambian law. Other national efforts to conserve turtles in The Gambia are described and assessed.

Information on the densities of threatened species in non-protected areas is crucial for assessing the degree of isolation of adjacent protected areas and consequently their potential for preserving species from extinction. Relatively few studies, however, provide such information. We present the results of a survey of the densities of two great ape species, the gorilla Gorilla gorilla gorilla and chimpanzee Pan troglodytes troglodytes, in a non-protected area on the northern periphery of Dja Faunal Reserve, Cameroon. Densities of chimpanzees and gorillas were estimated to be 1.1 and 3.8 weaned individuals per km2, respectively. The results confirm that gorillas prefer building nests in vegetation types with limited visibility, and that within preferred vegetation types for nesting, gorillas select patches that are the most difficult to penetrate, resulting in less conspicuous nests. Although the opposite tendencies were exhibited by chimpanzees, no firm conclusions could be drawn from our data. Despite its non-protected status and past and ongoing logging activities in the area, the densities of gorillas and chimpanzees on the northern periphery of Dja Faunal Reserve are comparable to those found within the reserve itself, indicating the need for developing alternative conservation action to protect these important populations. The creation of a Communal Wildlife Zone in this area is legislatively possible, and could be an effective conservation tool because it has to originate from the local people.

The spotted seal Phoca largha, which is found in the Okhotsk, Bering, Chukchi, Beaufort and Yellow seas, is Critically Endangered in the Yellow Sea of China and Korea because of habitat destruction and human harassment in the region. Shipboard surveys were conducted in the inshore waters of Bak-ryoung Island off western South Korea from March 2000 to October 2002 to investigate the distribution, abundance and seasonal haul-out patterns of spotted seals and thereby to lay a foundation for developing conservation measures. Seals were seen on every survey during the study period, hauled out on offshore rocks rather than on beaches. The highest concentration of spotted seals occurred on Mul-Beum Rock, probably because of the relatively lower exposure of this site to waves and spray. There was a seasonal pattern in the total number of seals hauled out, with the highest numbers seen from late spring to late summer. Spotted seals arrived as early as 15 March and left the area by late December. We suggest that spotted seals spend the spring, summer and autumn feeding along the coast of Bak-ryoung Island and return to their breeding grounds in Liaodong Bay, China, in October. Because the spotted seal populations of China and South Korea are small and seasonally dispersed, the establishment of an international protected areas network and research cooperation between China and South Korea is urgently required.

Mankyua chejuense, a fern endemic to Cheju Island, Republic of Korea, which lies 120 km south of the Korean Peninsula, appears to be restricted to five extant subpopulations in the north-east of the Island, with a total population of c. 1,300 individuals. Major threats to the existence of the species include shifting cultivation, plantation, overuse of basaltic rocks that are part of the species' microhabitat, farming and pasturage, and the construction of roads and golf courses in lowland areas. The information currently available for the species indicates that it should be categorized as Critically Endangered on the IUCN Red List. For conservation of the species it needs to be included on the national threatened species list, and its habitat designated as an ecological reserve. Intensive surveys are required in order to establish whether there are any other extant subpopulations of the species, and the presently known subpopulations require long-term monitoring and continuous protection.

Increased traffic volumes worldwide are contributing to amphibian declines, and measures to reduce the occurrence of road kills are needed. One possible measure is the construction of underpasses through which animals can pass under roads, but little is known about whether amphibians will choose tunnels if given a choice or about their preferences for different tunnel types. We tested the preferences of three anuran species for two kinds of concrete amphibian tunnels currently used in France. One was a tunnel lined with soil, the other a bare concrete pipe. The animals could use the tunnels or bypass them over a grassy area. Water frogs Rana esculenta and common toads Bufo bufo showed a preference for the tunnels, whereas agile frogs Rana dalmatina avoided them. Among the individuals that chose either of the tunnels, all species showed a significant preference for the tunnel lined with soil. These results indicate that species differ in their preferences and in their likelihood of using underpasses when given a choice. This highlights the fact that there is no unique solution to the problem, and underpasses are only one of the possible mitigation measures that need to be assessed.

The lesser kestrel Falco naumanni is a cavity-nesting falcon that breeds colonially in steppe-like habitats. Circum-Mediterranean populations declined sharply during the 20th century and the species is categorized as Vulnerable on the IUCN Red List. We investigated the numbers of breeding pairs in Kazakhstan, previously considered to be an important area for the species, where it still inhabits natural steppe and semi-natural grasslands and breeds on cliffs. The availability of cliffs for nesting does not seem to be limiting as most cliffs are unoccupied. However, lesser kestrels tended to breed on small cliffs, where larger predatory raptors are scarcer. Abundance of lesser kestrels was also related to land use. Cliffs in semi-natural grasslands were apparently preferred over those in natural steppe, while those in agricultural landscapes were avoided despite the lower presence there of larger raptors. Large-scale transformation of steppe and grasslands into intensive agriculture might have reduced lesser kestrel numbers, and with the development of new agricultural projects, monitoring and conservation programmes for lesser kestrel populations are urgently required in Kazakhstan.