香港六合彩开奖结果现场直播

Grey literature

国際自然保護連合 種保存委員会 種保全のための生息域外管理利用ガイドライン

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Abstract

As habitats and ecosystems become increasingly altered and populations evermore impacted by human activities, a growing number of species will require some form of management of both individuals and populations to ensure their survival. Ex situ management is one possible option that can contribute to the conservation of threatened species. The aim of these guidelines is to provide practical guidance on evaluating the suitability and requirements of an ex situ component for achieving species conservation objectives.?