Conservation status of vascular plant species in Tāmaki Makaurau / Auckland

Author:

Emma Simpkins, Jacinda Woolly, Peter de Lange, Cameron Kilgour, Ewen Cameron, Sabine Melzer

Source:

Auckland Council Natural Environment Specialist Services

Publication date:

2023

Topics:

Environment

Executive summary

The conservation status of all known indigenous vascular plant taxa in Tāmaki Makaurau / Auckland was assessed using the New Zealand Threat Classification System (NZTCS). This is the first time Auckland Council has facilitated this assessment. Department of Conservation draft regional guidelines were used and a process outlined by the Greater Wellington Regional Council followed.

A total of 786 vascular plant species were identified as present in Tāmaki Makaurau / Auckland. Two hundred species were assessed as Threatened, 105 as At Risk, four as Non-resident Native (Regional Vagrant or Coloniser) and 88 as Data Deficient. Forty-five per cent of vascular plant species are Threatened or At Risk. An additional 27 species were identified that have become extinct or may have formerly occurred in the region.

Auckland Council technical report, TR2022/19