Family: Anatidae (Ducks, Geese, Swans)
Authority: (Sevastianov, 1802)
Red List Category
Click
here for more information about the Red List categories and criteria
Justification of Red List categoryThis species has a very large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km
2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population trend appears to be increasing and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size is estimated at 90,000-120,000 mature individuals, hence does not approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.
Population size:
90000-120000 mature individuals
Population trend:
increasing
Extent of occurrence (breeding/resident):
775,000 km
2
Country endemic:
no
Attributes
Land-mass type - continent
Realm - Nearctic
Realm - Palearctic
IUCN System - Freshwater
IUCN System - Terrestrial
IUCN System - Marine