Iucn Red List Categories And Criteria Version 3 1 Second Edition

The 1994 IUCN Red List of Threatened Animals was a major advance on its predecessors in clarity of layout and amount of information presented. This is taken further in the 1996 edition, which is also the first global compilation to use the complete new IUCN Red List category system.

"Wildlife in a Changing World" presents an analysis of the 2008 IUCN Red List of Threatened Species. Beginning with an explanation of the IUCN Red List as a key conservation tool, it goes on to discuss the state of the world s species and provides the latest information on the patterns of species facing extinction in some of the most important ecosystems in the world, highlighting the reasons behind their declining status. Areas of focus in the report include: freshwater biodiversity, the status of the world s marine species, species susceptibility to climate change impacts, the Mediterranean biodiversity hot spot, and broadening the coverage of biodiversity assessments."

Tree species are ecologically, culturally and economically valuable components of biodiversity and their conservation is essential to the well-being of people in all countries of the world. With increasing general pressures on ecosystems and selective pressures on species, it has become apparent that many tree species are threatened with extinction. The world list of threatened trees presents the results of the first survey of the conservation status of tree species worldwide.

This book represents the most comprehensive compilation of data on threatened vascular plants ever published. It includes the names of some 33,000 plant species determined to be rare or threatened on a global scale. Conservation assessments were provided by the IUCN Species Survival Commission, the National Botanical Institute (South Africa), Environment Australia, and CSIRO, The Nature Conservancy, the Smithsonian Institution, and the Royal Botanic Gardens, Kew, together with hundreds of botanic gardens and botanists throughout the world. The Royal Botanic Gardens Edinburgh and the New York Botanical Garden have made major in-kind contributions.The result of 20 years work by botanists and conservationists around the world, it is intended as a conservation tool, a provider of baseline information to measure conservation progress and as a primary source of data on plant species. Most importantly, however, it provides the building blocks on which to base a worldwide effort to conserve plant species.

A comprehensively updated edition of an identification guide that was named a Guardian Best Nature Book of the Year Now in a comprehensively revised and updated new edition, Britain’s Spiders is a guide to all 38 of the British families, focussing on spiders that can be identified in the field. Illustrated with a remarkable collection of photographs, it is designed to be accessible to a wide audience, including those new to spider identification. This book pushes the boundaries of field identification for this challenging group, combining information on features that can be seen with the naked eye or a hand lens with additional evidence from webs, egg sacs, behaviour, phenology, habitats and distributions. Individual accounts cover 404 species—all of Britain’s “macro” spiders and the larger money spiders, with the limitations to field identification clearly explained. This new edition includes nine species new to Britain, many recent name changes, updated distribution maps and species information, new guides to help identify spider families and distinctive species, and the latest species checklist. A guide to spider families, based on features recognizable in the field, focussing on body shape and other characteristics, as well as separate guides to webs and egg-sacs Detailed accounts and more than 700 stunning photographs highlight key identification features for each genus and species, and include information on status, behaviour and habitats Up-to-date distribution maps, and charts showing adult seasonality Introductory chapters on the biology of spiders, and where, when and how to find them, including equipment needed in the field A complete list of the spiders recorded in Britain, indicating the ease of identification as well as rarity and conservation status Information on how to record spiders and make your records count, and guidance on how to take your interest further New to this edition: coverage of nine species new to Britain, updated species information and distribution maps, identification guides to spider families and distinctive species, and the latest species checklist

The threatened species categories used in Red Data Books and Red Lists have been in place for almost 30 years. The IUCN Red List Categories and Criteria provide an easily and widely understood system for classifying species at high risk of global extinction, so as to focus attention on conservation measures designed to protect them. This latest version of the classification system was adopted by the IUCN Council in February 2001 and reflects comments from the IUCN and SSC memberships and the final meeting of the Criteria Review Working Group.

Release of the 2000 Red List is a major landmark for IUCN. It is the first time that listings of animals and plants have been combined and the first time that the Red List has been produced on CD-ROM. The 2000 Red List combines new assessmentsincluding all bird species, many antelope and bat species, most primates and sharks, all Asian freshwater turtles, more molluscs, and many otherswith those from previous publications. The combination of animals and plants into a single list containing assessments of more than 18,000 taxa (11,000 of which are threatened species) and the move towards improved documentation of each species on the list means that a hard-copy version of the Red List would run to several volumes. This, combined with the fact that the Red List will be updated annually, led to the decision to release the Red List in electronic format, via the World Wide Web and as a CD-ROM.