IUCN Red List Criteria
| Critically Endangered |
|
| Endangered |
|
| Vulnerable |
A2be+3be+4be |
IUCN Red List history
| Year |
Category |
| 2012 |
Vulnerable |
| 2008 |
Vulnerable |
| 2004 |
Vulnerable |
| 2000 |
Vulnerable |
| 1996 |
Vulnerable |
| 1994 |
Not Recognised |
| 1988 |
Not Recognised |
Species attributes
| Migratory status |
not a migrant |
Forest dependency |
Low |
| Land mass type |
|
Average mass |
- |
Distribution
| |
Estimate |
Data quality |
| Extent of Occurrence breeding/resident (km2) |
9,800 |
medium |
| Number of locations |
11-100 |
- |
| Fragmentation |
|
- |
Population & trend
| |
Estimate |
Data quality |
Derivation |
Year of estimate |
| No. of mature individuals |
19900 |
medium |
Estimated |
2008 |
| Population trend |
Decreasing |
medium |
|
- |
| Number of subpopulations |
2-100 |
- |
- |
- |
| Largest subpopulation |
15000 |
- |
- |
- |
| Generation length (yrs) |
8.8 |
- |
- |
- |
|
Population justification: The 2008 total population was estimated at 29,800 birds (Holzapfel et al. 2008, H. Robertson in litt. 2012), similar to the estimate of 27,225 (± c.25%) birds in 1996 (Robertson 2003). The species is common on Stewart Island but is thought to be declining (from c.20,000 birds in 1996 [Robertson 2003] to 15,000 in 2008 [Holzapfel et al. 2008]) and in localised areas in northern Fiordland (10,000 birds) and southern Fiordland (4,500 birds) (Heather and Robertson 1997, Holzapfel et al. 2008). The Haast population was reported as 300 individuals by Holzapfel et al. (2008). The estimate of c.29,800 birds suggests that there are c.19,900 mature individuals, on the basis that they account for around 2/3 of the population. |
|
Trend justification: The species is common on Stewart Island but is thought to be declining (from c.20,000 birds in 1996 [Robertson 2003] to 15,000 in 2008 [Holzapfel et al. 2008]) and in localised areas in northern Fiordland (10,000 birds) and southern Fiordland (4,500 birds) (Heather and Robertson 1997, Holzapfel et al. 2008). The inferred decline of 5.8% per year on the mainland, like its congener A. mantelli (McLennan et al. 1996), is now considered to have been much too pessimistic, and the actual rate of decline is thought to be closer to 2% (Holzapfel et al. 2008). The generation length used here may need to be revised, with possible implications for the inferred rate of decline. |
Country/Territory distribution
| Country/Territory |
Occurrence status |
Extinct |
Breeding |
Non-breeding |
Passage |
| New Zealand |
Native |
No |
|
|
|
Habitats & altitude
| Habitat (level 1) |
Habitat (level 2) |
Importance |
Occurrence |
| Artificial/Terrestrial |
Arable Land |
suitable |
resident |
| Artificial/Terrestrial |
Pastureland |
suitable |
resident |
| Artificial/Terrestrial |
Plantations |
suitable |
resident |
| Forest |
Subtropical/Tropical Moist Lowland |
suitable |
resident |
| Forest |
Temperate |
suitable |
resident |
| Grassland |
Temperate |
marginal |
resident |
| Shrubland |
Subtropical/Tropical Moist |
suitable |
resident |
| Shrubland |
Temperate |
suitable |
resident |
|
Altitude
|
0 - 1500 m
|
Occasional altitudinal limits
|
|
Threats & impact
| Threat (level 1) |
Threat (level 2) |
Impact and Stresses |
| Invasive non-native/alien species/diseases |
Problematic native species/diseases / Stoat (Mustela erminea) |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Minority (<50%) |
Very Rapid Declines |
Medium Impact: |
| Stresses |
|---|
| Species mortality |
|
| Invasive non-native/alien species/diseases |
Invasive non-native/alien species/diseases / Common Brushtail (Trichosurus vulpecula) |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Minority (<50%) |
Very Rapid Declines |
Medium Impact: |
| Stresses |
|---|
| Species mortality |
|
| Invasive non-native/alien species/diseases |
Invasive non-native/alien species/diseases / Domestic Cat (Felis catus) |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Minority (<50%) |
Very Rapid Declines |
Medium Impact: |
| Stresses |
|---|
| Species mortality |
|
| Invasive non-native/alien species/diseases |
Invasive non-native/alien species/diseases / Domestic Dog (Canis familiaris) |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Minority (<50%) |
Very Rapid Declines |
Medium Impact: |
| Stresses |
|---|
| Species mortality |
|
| Invasive non-native/alien species/diseases |
Invasive non-native/alien species/diseases / Ferret (Mustela furo) |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Minority (<50%) |
Very Rapid Declines |
Medium Impact: |
| Stresses |
|---|
| Species mortality |
|
Utilisation
| Purpose |
Primary form used |
Life stage used |
Source |
Scale |
Level |
Timing |
| Pets |
Whole |
Adults and juveniles |
Wild |
International |
Non-trivial |
Recent |
Recommended citation
BirdLife International (2013) Species factsheet: Apteryx australis. Downloaded from
http://www.birdlife.org on 25/05/2013.
Recommended citation for factsheets for more than one species: BirdLife International (2013) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 25/05/2013.
This information is based upon, and updates, the information published in BirdLife International (2000)
Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004)
Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.
To provide new information to update this factsheet or to correct any errors, please email BirdLife
To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.
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