Data Zone
Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 1: Non-passerines. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
SACC. 2005 and updates. A classification of the bird species of South America. Available at: #http://www.museum.lsu.edu/~Remsen/SACCBaseline.htm#.
Turbott, E.G. 1990. Checklist of the Birds of New Zealand. Ornithological Society of New Zealand, Wellington.
| Critically Endangered | Endangered | Vulnerable |
|---|---|---|
| - | - | D2 |
| Year | Category | Criteria |
|---|---|---|
| 2016 | Vulnerable | D2 |
| 2012 | Vulnerable | D2 |
| 2010 | Vulnerable | D2 |
| 2008 | Vulnerable | D2 |
| 2005 | Vulnerable | |
| 2004 | Vulnerable | |
| 2000 | Vulnerable | |
| 1996 | Vulnerable | |
| 1994 | Vulnerable | |
| 1988 | Lower Risk/Least Concern |
| Migratory status | full migrant | Forest dependency | High |
| Land mass type | Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence breeding/resident (km2) | 15 | medium |
| Extent of Occurrence non-breeding (km2) | 4,180,000 | medium |
| Extent of Occurrence breeding/resident (km2) | 1 | medium |
| Number of locations | 1 | - |
| Fragmentation | - |
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| No. of mature individuals | 63000 | good | estimated | 2010 |
| Population trend | Stable | medium | estimated | - |
| Decline (3 years/1 generation past) | - | - | - | |
| Decline (5 years/1 generation past) | - | - | - | |
| Decline (10 years/1 generation past) | - | - | - | |
| Decline (10 years/3 generation future) | - | - | - | |
| Decline (10 years/3 generation past and future) | - | - | - | |
| Number of subpopulations | 1 | - | - | - |
| Largest subpopulations | 100 | - | - | - |
| Generation length (yrs) | 11.1 | - | - | - |
Population justification:
The population was estimated at 23,250 breeding pairs in 1985-1986; 19,000 on North-East Island, 3,500 on Broughton and 750 on the Western Chain islets (Marchant and Higgins 1990). In 2000, 23,683 pairs were counted on North-East Island and 4,737 on Broughton Island, while an additional 381 pairs were estimated to breed on the Western Chain (Amey et al. 2001). The 2008 survey produced counts of 16,470 pairs on North-East Island and 3,375 pairs on Broughton, suggesting that the species had experienced a poor breeding year in line with that observed for the other seabird species present. Repeat surveys in 2010 found 21,167 and 4,358 pairs. A survey in 2013 found 20,716 pairs on North-East Island and 4,433 pairs on Broughton (Hiscock and Chilvers 2016), suggesting that there are at least c.50,300 mature individuals. Assuming that 80% of adult birds engage in breeding each year there should be a total of c.63,000 mature individuals.
Trend justification: Surveys suggest that the population on North East and Broughton Island is stable (Amey et al. 2001, Mattern et al. 2009, Hiscock and Chilvers 2016).
| Country/Territory | Occurrence status | Presence | Resident | Breeding | Non-breeding | Passage |
|---|---|---|---|---|---|---|
| Argentina | V | Extant | ||||
| Australia | V | Extant | Yes | |||
| Falkland Islands (Malvinas) | V | Extant | ||||
| New Zealand | N | Extant | Yes |
| Country/Territory | IBA Name |
|---|---|
| New Zealand | Snares (eastern islands) |
| New Zealand | Western Chain |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Forest | Subantarctic | major | breeding |
| Marine Neritic | Pelagic | major | breeding |
| Marine Neritic | Pelagic | major | non-breeding |
| Marine Oceanic | Epipelagic (0-200m) | major | breeding |
| Marine Oceanic | Epipelagic (0-200m) | major | non-breeding |
| Altitude | 0 - 70 m | Occasional altitudinal limits |
| Threat (level 1) | Threat (level 2) | Impact and Stresses | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Biological resource use | Fishing & harvesting aquatic resources - Unintentional effects: (large scale) [harvest] | Timing | Scope | Severity | Impact | ||||
| Ongoing | Whole (>90%) | Negligible declines | Medium Impact: 6 | ||||||
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| Climate change & severe weather | Temperature extremes | Timing | Scope | Severity | Impact | ||||
| Ongoing | Whole (>90%) | Slow, Significant Declines | Medium Impact: 7 | ||||||
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| Invasive and other problematic species, genes & diseases | Invasive non-native/alien species/diseases - Unspecified species | Timing | Scope | Severity | Impact | ||||
| Future | Whole (>90%) | Rapid Declines | Medium Impact: 6 | ||||||
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Recommended citation
BirdLife International (2018) Species factsheet: Eudyptes robustus. Downloaded from
http://www.birdlife.org on 25/06/2018.
Recommended citation for factsheets for more than one species: BirdLife International (2018) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 25/06/2018.
