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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Establishing IUCN red list criteria for threatened ecosystems
Conservation Biology, Volume 25, No. 1, Year 2011
Notification
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Description
The potential for conservation of individual species has been greatly advanced by the International Union for Conservation of Nature's (IUCN) development of objective, repeatable, and transparent criteria for assessing extinction risk that explicitly separate risk assessment from priority setting. At the IV World Conservation Congress in 2008, the process began to develop and implement comparable global standards for ecosystems. A working group established by the IUCN has begun formulating a system of quantitative categories and criteria, analogous to those used for species, for assigning levels of threat to ecosystems at local, regional, and global levels. A final system will require definitions of ecosystems; quantification of ecosystem status; identification of the stages of degradation and loss of ecosystems; proxy measures of risk (criteria); classification thresholds for these criteria; and standardized methods for performing assessments. The system will need to reflect the degree and rate of change in an ecosystem's extent, composition, structure, and function, and have its conceptual roots in ecological theory and empirical research. On the basis of these requirements and the hypothesis that ecosystem risk is a function of the risk of its component species, we propose a set of four criteria: recent declines in distribution or ecological function, historical total loss in distribution or ecological function, small distribution combined with decline, or very small distribution. Most work has focused on terrestrial ecosystems, but comparable thresholds and criteria for freshwater and marine ecosystems are also needed. These are the first steps in an international consultation process that will lead to a unified proposal to be presented at the next World Conservation Congress in 2012. © 2010 Society for Conservation Biology.
Available Materials
https://efashare.b-cdn.net/share/pmc/articles/PMC3051828/bin/cobi0025-0021-SD1.pdf
https://efashare.b-cdn.net/share/pmc/articles/PMC3051828/bin/cobi0025-0021-SD2.pdf
https://efashare.b-cdn.net/share/pmc/articles/PMC3051828/bin/cobi0025-0021-SD3.pdf
https://efashare.b-cdn.net/share/pmc/articles/PMC3051828/bin/cobi0025-0021-SD4.pdf
https://efashare.b-cdn.net/share/pmc/articles/PMC3051828/bin/cobi0025-0021-SD5.pdf
Authors & Co-Authors
Rodríguez, Jon Paul
Venezuela, Altos de Pipe
Instituto Venezolano de Investigaciones Científicas
Venezuela, Caracas
Provita
Rodríguez-Clark, Kathryn M.
Venezuela, Altos de Pipe
Instituto Venezolano de Investigaciones Científicas
Baillie, Jonathan E.M.
United Kingdom, London
Zoological Society of London
Ash, Neville
Switzerland, Gland
International Union for Conservation of Nature and Natural Resources
Benson, John S.
Australia, Sydney
Royal Botanic Gardens Sydney
Boucher, Timothy M.
United States, Arlington
Nature Conservancy
Brown, C.
United Kingdom, Cambridge
United Nations Environment Programme World Conservation Monitoring Centre
Burgess, Neil David
United States, Washington, D.c.
Conservation Science Program
United Kingdom, Cambridge
University of Cambridge
Denmark, Copenhagen
Københavns Universitet
Collen, Ben
United Kingdom, London
Zoological Society of London
Jennings, Michael D.
United States, Moscow
University of Idaho
Keith, David A.
Australia, Sydney
Nsw National Parks and Wildlife Service
Nicholson, Emily
United Kingdom, London
Imperial College London
Revenga, Carmen
United States, Arlington
Nature Conservancy
Reyers, Belinda
South Africa, Pretoria
The Council for Scientific and Industrial Research
Rouget, Mathieu
South Africa, Pretoria
South African National Biodiversity Institute
Smith, Tammy
South Africa, Pretoria
South African National Biodiversity Institute
Spalding, Mark D.
United Kingdom, Cambridge
University of Cambridge
Taber, Andrew B.
Indonesia, Bogor
Center for International Forestry Research, West Java
Walpole, M. J.
United Kingdom, Cambridge
United Nations Environment Programme World Conservation Monitoring Centre
Zager, Irene
Venezuela, Caracas
Provita
Zamin, Tara J.
Canada, Kingston
Queen’s University
Statistics
Citations: 206
Authors: 21
Affiliations: 17
Identifiers
Doi:
10.1111/j.1523-1739.2010.01598.x
ISSN:
08888892
e-ISSN:
15231739
Study Approach
Quantitative