G2TT
来源类型Articles
规范类型论文
DOI10.1111/j.1523-1739.2010.01598.x
ISSN0888-8892
Establishing IUCN red list criteria for threatened ecosystems
Kaimowitz, D.
发表日期2011
出处Conservation Biology 25(1): 21-29
出版年2011
语种英语
摘要

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

主题ecosystems ; endangered species
URLhttps://www.cifor.org/library/3180/
来源智库Center for International Forestry Research (Indonesia)
引用统计
资源类型智库出版物
条目标识符http://119.78.100.153/handle/2XGU8XDN/91755
推荐引用方式
GB/T 7714
Kaimowitz, D.. Establishing IUCN red list criteria for threatened ecosystems. 2011.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Kaimowitz, D.]的文章
百度学术
百度学术中相似的文章
[Kaimowitz, D.]的文章
必应学术
必应学术中相似的文章
[Kaimowitz, D.]的文章
相关权益政策
暂无数据
收藏/分享

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。