New Zealand Threat Classification System


The New Zealand Threat Classification System is used by the Department of Conservation to assess conservation priorities of species in New Zealand.
The system was developed because the IUCN Red List, a similar conservation status system, had some shortcomings for the unique requirements of conservation ranking in New Zealand. plants, animals, and fungi are evaluated, though the lattermost has yet to be published. Algae were assessed in 2005 but not reassessed since. Other protists have not been evaluated.

Categories

Species that are ranked are assigned categories:
;Threatened
;At Risk

Other categories

; Introduced and Naturalised
; Migrant
; Vagrant
; Coloniser
; Data Deficient
; Extinct
; Not Threatened

Qualifiers

A series of qualifiers are used to give additional information on the threat classification:

''New Zealand Threat Classification Series''

New Zealand Threat Classification Series is a scientific monograph series providing the NZTCS status of members of a group of species, written by an independent panel of experts. There are currently 23 groups, each assessed once approximately every 5 years.