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  Threat from deforestation to montane and lowland birds and mammals in insular South-east Asia »

  A reduction in forest area should result in a reduction of its number of species and, moreover, do so in a characteristic way according to the familiar species-area relationship. Brooks, Pimm & Collar (1997) applied this formula to the losses in forest area in the Philippines and Indonesia. Independently derived totals of the number of endemic bird species that are threatened with extinction broadly agree with these predicted losses. In some cases, however, predicted losses overestimate or underestimate the actual numbers of threatened species.

  Resource Type: Journal Papers
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  World Atlas of Great Apes and their Conservation (2005) »

  This atlas provides a comprehensive overview of what is currently known about all six species of great apes - chimpanzee, bonobo, Sumatran orangutan, Bornean orangutan, eastern gorilla, and western gorilla. It gives a thorough background on ape behaviour and ecology for each species, including detailed habitat requirements, the apes' ecological role, and the possible consequences of their decline.

  Despite the dedicated efforts of many individuals and organizations, the great apes all fall into the Endangered or Critically Endangered category of the IUCN Red List. This atlas offers a full description of the threats, current conservation efforts, and additional protection needed for each species across its entire range.

  •Covers all six species of great apes
  •Provides the most up-to-date and comprehensive data available
  •More than 150 full-colour photos
  •More than 40 full-colour maps and diagrams
  •References online

  Resource Type: Books
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  A comparison between Tundra and wet grassland breeding waders with special reference to the Ruff (Philomachus pugnax) »

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  Some important birds and forests in Nepal »

  A table is provided of 122 bird species with restricted breeding distributions and for which Nepal may hold significant populations. Habitat threats and population changes are detailed for 33 species for which Nepal may be especially important. The vital importance of Nepal's forests to Nepal's avifauna is emphasised.

  Resource Type: Journal Papers
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  Status of the Baikal Teal in the Lower Indigirka Basin, Siberia »

  Small local hunting communities in Siberia are very distant from any governmental control. Hunted waterbird species, including globally and regionally threatened species, rely for their well-being on the self regulation of remote hunting communities. Interviewed hunters showed a profound knowledge of Baikal Teal, its population status, and the causes of their past decline. Whether the knowledge is shared by other communities in the region and beyond in Northern Siberia needs verification.
  Empowered l

  Resource Type: Journal Papers
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  CITES and the conservation of tree species: the case of Aquilaria in Indonesia »

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  Progressive impact of piecemeal infrastructure development on wild reindeer »

  Our results show that any further infrastructure development will put the remaining European population of wild mountain reindeer at great risk, as further habitat fragmentation will make the remaining undisturbed patches too small for holding viable populations. We discuss the importance of controlling piecemeal development in infrastructure for conservation of wildlife and argue that minimizing infrastructure development is likely one of the largest challenges in wildlife conservation ahead.

  Resource Type: Journal Papers
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  How much do we know about the current extinction rate? »

  Since about 1600, 486 animal species have been recorded extinct. This represents about 0.04 of all animal species so far described. In the same period, 600 plant species are known to have disappeared, about 0.25 of the total. These figures are much smaller than those of the Permian/Triassic and Cretaceous/Tertiary mass extinctions. One might therefore conclude that at present life on earth is at comparatively little risk of extinction. However, there is a growing body of data to show that the converse is true.

  Resource Type: Journal Papers
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  Distribution, status, and proposals for the conservation of mountain gazelle Gazella gazella cora in south-west Saudi Arabia »

  Nineteen different areas in south-west Saudi Arabia from which mountain gazelle Gazella gazella cora were reported between 1988 and 1992 were visited during a field survey conducted between August 1992 and February 1993. Evidence of the continued presence of gazelle was found at 11 of these locations. All populations were small: estimated population sizes ranged from 5 to 50. In the remaining eight areas it appeared that gazelle had become locally extinct since the last report. Thus gazelle populations appear to be becoming extinct at an alarming rate (eight out of 19, or 42, in five years). The major cause of extinctions and threat to existing populations is illegal hunting. Traditional conservation measures will take time to implement, and may be too late to save most gazelle populations. Instead, protection enforced by a system of auxiliary rangers, recruited from among the local population and working in cooperation with the forces of the local civilian administration, is recommended.

  Resource Type: Journal Papers
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  Effects of population disjunction on isozyme variation in the widespread Pilgerodendron uviferum »

  Geographical range is considered a good predictor of the levels of isozyme variation in plants. Widespread species, often consisting of historically larger and more continuous populations, maintain higher polymorphism and are less affected by drift, which tends to erode genetic variation in more geographically restricted species. However, widespread species occurring in small and disjunct populations may not fit this pattern. In this study we examined genetic variation in Pilgerodendron uviferum, a conifer endemic to temperate forests of southern South America.

  Resource Type: Journal Papers