New Zealand Threat Classification System

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The New Zealand Threat Classification System is used by the Department of Conservation to assess conservation priorities of species in New Zealand.^[1]

The list was developed since the IUCN Red List, a similar conservation status system, had some shortcomings for the unique requirements of conservation ranking in New Zealand.

Contents 1 Categories 1.1 Introduced and Naturalised 1.2 Vagrant 1.3 Coloniser 1.4 Migrant 1.5 Data Deficient 1.6 Extinct 1.7 Threatened 1.7.1 Acutely Threatened 1.7.2 Chronically Threatened 1.7.3 At Risk 1.8 Not Threatened 2 See also 3 References 4 External links

[edit] Categories

Species that are ranked are assigned categories and

[edit] Introduced and Naturalised

These are any species that are deliberately or accidentally introduced into new Zealand.

[edit] Vagrant

Vagrants are taxa that are rare in New Zealand that have made their own way and do not breed successfully.

[edit] Coloniser

These taxa have arrived in new Zealand without human help and reproduce successfully.

[edit] Migrant

Migrant species are those that visit New Zealand as part of their life cycle.

[edit] Data Deficient

This category lists taxa for which insufficient information is available to make as assessment on conservation status.

[edit] Extinct

Taxa for which there is no reasonable doubt that no individuals exist are ranked as extinct. For these lists only species that have become extinct since 1840 are listed.

[edit] Threatened

This category has three major divisions:

[edit] Acutely Threatened

This division is turther broken down into:

• Nationally Critical - equivalent to the IUCN category of Critically endangered
• Nationally Endangered - equivalent to the IUCN category of Endangered
• Nationally Vulnerable - equivalent to the IUCN category of Vulnerable

[edit] Chronically Threatened

This has two categories:

• Serious Decline
• Gradual Decline

[edit] At Risk

This has two categories:

• Range Restricted
• Sparse

[edit] Not Threatened

If taxa fit into none of the other categories they are listed in the Not Threatened category.

[edit] See also

• Conservation in New Zealand

[edit] References

[edit] External links

• Department of Conservation - New Zealand Threat Classification System lists – 2005