In a recent Opinion article in TREE [1], Gurevitch and Padilla concluded that the importance of invasive species in causing declines and extinctions of species is unproven. They analyzed the IUCN Red List database [2] and stated that only 6% of the taxa are threatened with extinction as a result of invasion by alien species and !2% (ten terrestrial plants and no animal species) of the 762 extin...

The World Conservation Union (IUCN) Red List is widely recognized as the most authoritative and objective system for classifying species by their risk of extinction. Red List Indices (RLIs) illustrate the relative rate at which a particular set of species change in overall threat status (i.e. projected relative extinction-risk), based on population and range size and trends as quantified by Red...

The first comprehensive review in five years of the world's more than 600 species of primate found that almost 50 per cent are in danger of becoming extinct, according to the criteria of the International Union for Conservation of Nature (IUCN) Red List of Threatened Species. Announced at the International Primatology Congress in Edinburgh earlier this month, the report by the world's leading p...

We report the sighting of a large flock immature Gyps himalayensis (Hume, 1869) in Garhwal Himalayas area outer Himalayan range. This avian species is classified as near–threatened according to IUCN Red List. recommend future surveys and documentation breeding juvenile vagrant sites this order determine population numbers, moult schedules, trends area.

Founded in 1948, IUCN brings together States, government agencies and a diverse range of non-governmental organizations in a unique world partnership: over 1,000 members in all, spread across some 140 countries. As a Union, IUCN seeks to influence, encourage and assist societies throughout the world to conserve the integrity and diversity of nature and to ensure that any use of natural resource...

The UN has declared this year as the International Year of Biodiversity. Throughout the year a large number of initiatives are planned worldwide with the aim of raising the importance of the issue for communities around the globe. The year also marks a milestone in the assessment of the world's biodiversity. The initiatives have been supported by the organisation Countdown 200, set up through t...