New assessment of the conservation status of vascular plants
IntroductionHave your say on any changes in status of New Zealand vascular plants. Consultation closed on 9 September 2022.
This is a call for advice about any changes in status of New Zealand vascular plants, including newly recognised taxa, to inform a revision of the assessment for this group in the New Zealand Threat Classification System (NZTCS).
View the current list giving the status of ca. 2798 taxa in de Lange et al. 2018, Conservation status of New Zealand indigenous vascular plants, 2017 (PDF, 8,580K).
Data can be accessed on the NZTCS website.
An expert panel will meet to review the classification of vascular plants including use of supplied information.
An assessment will be made based on a scientific approach using two criteria:
- the size of the population or estimated area of occupancy
- the expected trend (amount of decline or increase) for each taxon (species, subspecies, variety, etc.), regardless of whether it is taxonomically determinate (having a formal scientific name) or indeterminate (having an informal ‘tag name’).
How to contribute
Note that this consultation process is intended to provide information to the expert panel, not to lobby for a particular outcome.
Guidance on the criteria used to assess the status of species:
- New Zealand Threat Classification System manual 2008 (PDF, 417K)
- Supplement to the NZTCS manual 2008: New qualifiers and amendments to qualifier definitions, 2021 (PDF, 3,527K)
- Amendment to the NZTCS manual 2008: revised categories 2021(PDF 1,091K)
Terrestrial Science Unit
Department of Conservation
PO Box 10-420
Separate advice should be provided for each species (or subspecies, variety, etc).
Consultation closed on 9 September 2022.
Email us at email@example.com if you need any assistance or clarification about this consultation process.
The New Zealand Threat Classification System allows the classification of conservation status/risk of extinction of all organisms known to occur in a wild state in New Zealand. Endemics, non-endemic natives, migrants, vagrants, and introduced and naturalised species are all included, as are taxa which have not been formally described.
The NZTCS is not a priority-setting system. It is a resource to support priority setting, among other functions.
Panels of experts from New Zealand’s scientific community determine conservation statuses by assessing population size (number of breeding adults or the area of occupied habitat), forecast change in population size (over either the next three generations or 10 years, whichever is longer), whether the current state of the population is a result of human-induced effects. Groups of organisms are assessed approximately every five years.
The assessments of each group of organisms (e.g. birds, fungi, vascular plants, marine invertebrates, etc…) are published as scientific monograph series which are considered part of the formal international scientific literature.
The PDF copy of the assessment report is publicly available on the DOC website.
The assessment data are also publicly available on the NZTCS database.