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Campbell Teal Anas nesiotis

IUCN Red List Criteria

Critically Endangered  
Endangered D1+2 
Vulnerable

IUCN Red List history

Year Category
2013 Endangered
2012 Endangered
2011 Endangered
2010 Critically Endangered
2009 Critically Endangered
2008 Critically Endangered
2006 Critically Endangered
2004 Critically Endangered
2000 Critically Endangered
1994 Not Recognised
1988 Not Recognised

Species attributes

Migratory status not a migrant Forest dependency Does not normally occur in forest
Land mass type   Average mass -

Distribution

  Estimate Data quality
Extent of Occurrence breeding/resident (km2) 110 medium
Number of locations 3 -
Fragmentation -

Population & trend

  Estimate Data quality Derivation Year of estimate
No. of mature individuals 100-200 medium Estimated 2011
Population trend Increasing good -
Number of subpopulations 1 - - -
Largest subpopulation 100-200 - - -
Generation length (yrs) 6.6 - - -
Population justification: Following a captive-breeding, reintroduction and translocation programme, the species is now thought to have exceeded 50 mature individuals for at least five years. Based on the numbers released, surveys and opportunistic observations of breeding and dispersal activity (P. McClelland in litt. 2011), the population probably includes between 100 and 200 mature individuals, equivalent to 150-300 individuals in total.
Trend justification: The population has increased to over 200 individuals thanks to a captive-breeding programme and the successful release of birds on Whenua Hou and more recently mainland Campbell Island.

Country/Territory distribution

Country/Territory Occurrence status Presence Breeding Non-breeding Passage Resident
New Zealand Native Extant Yes      

Habitats & altitude

Habitat (level 1) Habitat (level 2) Importance Occurrence
Grassland Subantarctic major resident
Altitude 0 - 200 m Occasional altitudinal limits  

Threats & impact

Threat (level 1) Threat (level 2) Impact and Stresses
Climate change & severe weather Storms & flooding Timing Scope Severity Impact
Future Whole (>90%) No decline Low Impact: 4
Stresses
Ecosystem degradation, Species mortality
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases / Brown Rat (Rattus norvegicus) Timing Scope Severity Impact
Future Whole (>90%) No decline Low Impact: 4
Stresses
Reduced reproductive success
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases / Unspecified species Timing Scope Severity Impact
Future Whole (>90%) No decline Low Impact: 4
Stresses
Species mortality

Recommended citation
BirdLife International (2014) Species factsheet: Anas nesiotis. Downloaded from http://www.birdlife.org on 25/07/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 25/07/2014.

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.

Key facts
Current IUCN Red List category Endangered
Family Anatidae (Ducks, Geese, Swans)
Species name author (Fleming, 1935)
Population size 100-200 mature individuals
Population trend Increasing
Distribution size (breeding/resident) 110 km2
Country endemic? Yes
Links to further information
- Summary information on this species