In 2002, the Department of Conservation (DOC) published a document which set out a system for classifying species according to threat of extinction using criteria that had specifically been developed for New Zealand conditions. At the same time, a companion volume presented the results of using that system to classify all those species for which sufficient information was available. For the first time it was possible to provide an accurate threat classification for all those taxa for which information was available, ensuring that all those that were threatened received the necessary attention to secure their future.
This document updates the earlier lists, recording both actual changes in status and changes in our understanding as more knowledge is gathered, with the inclusion of additional species in many groups.
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