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Summary
Graphic diagram showing the 2008 New Zealand Threat Classification System categories, used by the New Zealand Department of Conservation . These categories replace the 2002 NZTCS.
At Risk categories
2002 Categories
Description
2008 Categories
2022 Categories
Range Restricted (RR) : small population only found in a particular habitat or area.
Now a qualifier, not a NZTCS category
Now a qualifier, not a NZTCS category
Sparse (SP) ; rare and localised.
Now a qualifier, not a NZTCS category
Now a qualifier, not a NZTCS category
Gradual Decline (GD) : a moderate to large population with a small to moderate rate of decline.
No longer a NZTCS category
No longer a NZTCS category
Serious Decline (SD) : a moderate to large population with moderate to large predicted decline.
No longer a NZTCS category
No longer a NZTCS category
—
Naturally Uncommon (NU) : naturally occurring as small or widely-scattered populations.
—
Relict (REL) : occupying less than 10% of their former range, but stable or increasing.
—
Recovering (R) : previously declining, but now showing an ongoing or predicted increase.
No longer a NZTCS category; moved to Nationally Increasing
—
Declining (D) : buffered by a large population or a slow decline rate, but may become Threatened in the future.
Threatened categories
2002 Categories
Description
2008 Categories
2022 Categories
—
Nationally Increasing (NI) : previously declining, but now showing an ongoing or predicted increase.
—
Nationally Vulnerable (VU) : a small or localised population facing gradual decline.
Nationally Endangered (NE) : a small to moderate population declining at a moderate to high rate.
Nationally Critical (NC) : a very small (less than 250 individuals) or very localised population, or one rapidly declining, or both.
Other categories
2002 Categories
Description
2008 Categories
2022 Categories
Not Threatened (NT) : an assessed native NZ species that does not qualify as At Risk or Threatened.
Data Deficient (DD) : insufficient information is available to make as assessment on conservation status.
Extinct (EX) : there is no reasonable doubt that no individuals exist. For these lists only species that have become extinct since 1840 are listed.
Licensing
Graphics: Mike Dickison . (User:Giantflightlessbirds )
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See also
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