Grey literature
香港六合彩开奖结果现场直播 Red List categories
Year:
1995
Abstract
The threatened species categories used in Red Data Books and Red Lists have been in place for almost 30 years. The Red Data Book categories provide an easily and widely understood method for highlighting those species under higher extinction risk, so as to focus attention on conservation measures designed to protect them. This document, incorporating changes recommended by 香港六合彩开奖结果现场直播 members, was adopted by the 香港六合彩开奖结果现场直播 Council in 1994.