Red List Category
for more information about the Red List categories and criteria
Justification of Red List category
This species has been downlisted to Near Threatened as it is no longer estimated to be undergoing very rapid population declines. Survey data from the Falkland Islands (Islas Malvinas), holding over 70% of the global population, showed population increases during the 2000s and possibly since the 1980s, and the data suggest reclassification as Least Concern, however there remains a considerable degree of uncertainty over population trends for a significant part of the global population, and trend esimates are heavily influenced by the extrapolation over 65 years of data from a ten-year period. In addition, high levels of mortality of this species are reported from longline and trawl fisheries in the South Atlantic. For these reasons, moderately rapid ongoing declines over three generations since 1980 are precautionarily suspected until further data are forthcoming.
1150000 mature individuals
Distribution size (breeding/resident):
Land-mass type - oceanic island - Oceanic islands are islands or island groups that are <200,000 sq km in size and separated from other land masses by >200 m sea depth. Generally Oceanic islands are islands or island groups that are <200,000 sq km in size and separated from other land masses by >200 m sea depth. Generally they have never been connected to a continental area by a land-ridge, and are volcanic in origin.
Land-mass type - shelf island - Continental islands include all other islands or island groups. Generally they were once part of continents and lie on a continental shelf of < 200 m sea depth.
Realm - Afrotropical - realm
Realm - Neotropical - realm
Realm - Oceanic - realm
Realm - Antarctic - realm
IUCN Ecosystem -- Terrestrial biome
IUCN Ecosystem -- Marine biome