RU2005
Lower Ob'


IBA Criteria

Year of most recent IBA criteria assessment: 2006

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Whooper Swan Cygnus cygnus LC passage 2003 1,500-2,000 individuals A4i
Whooper Swan Cygnus cygnus LC breeding 2004 500-700 breeding pairs A4i
Tundra Swan Cygnus columbianus LC passage 2003 300-650 individuals A4i
Red-breasted Goose Branta ruficollis VU passage 1999 50-3,000 individuals A1, A4i
Bean Goose Anser fabalis LC passage 1989-2003 7,000-10,000 individuals A4i
Greater White-fronted Goose Anser albifrons LC passage 2004 10,000-30,000 individuals A4i
Lesser White-fronted Goose Anser erythropus VU breeding 1984-2003 2-5 breeding pairs A1
Lesser White-fronted Goose Anser erythropus VU passage 2004 400-600 individuals A1, A4i
Long-tailed Duck Clangula hyemalis VU passage 2004 25,000-30,000 individuals A4i
Melanitta nigra NR non-breeding 2004 10-30,000 individuals A4i
Melanitta nigra NR passage 2004 20,000-30,000 individuals A4i
Smew Mergellus albellus LC breeding 2004 100-200 breeding pairs A4i
Smew Mergellus albellus LC passage 2004 2,000-3,000 individuals A4i
Red-breasted Merganser Mergus serrator LC breeding 2004 50-80 breeding pairs A4i
Red-breasted Merganser Mergus serrator LC passage 2004 300-400 individuals A4i
Tufted Duck Aythya fuligula LC breeding 2004 20,000-40,000 breeding pairs A4i
Tufted Duck Aythya fuligula LC passage 2004 300,000-400,000 individuals A4i
Greater Scaup Aythya marila LC passage 2004 30,000-50,000 individuals A4i
Northern Shoveler Spatula clypeata LC breeding 2004 5,500-7,000 breeding pairs A4i
Northern Shoveler Spatula clypeata LC passage 2004 30,000-50,000 individuals A4i
Eurasian Wigeon Mareca penelope LC breeding 2004 100,000-500,000 individuals A4i
Eurasian Wigeon Mareca penelope LC passage 2004 300,000-500,000 individuals A4i
Northern Pintail Anas acuta LC breeding 2004 80,000-100,000 breeding pairs A4i
Northern Pintail Anas acuta LC passage 2004 300,000-500,000 individuals A4i
Common Teal Anas crecca LC breeding 2004 15,000-20,000 breeding pairs A4i
Common Teal Anas crecca LC passage 2004 40,000-50,000 individuals A4i
Horned Grebe Podiceps auritus VU breeding 2004 300-500 breeding pairs A4i
Horned Grebe Podiceps auritus VU passage 2004 1,500-3,000 individuals A4i
Arctic Loon Gavia arctica LC breeding 2004 1,000-1,500 breeding pairs A4i
Arctic Loon Gavia arctica LC passage 2004 5,000-10,000 individuals A4i
Ruff Calidris pugnax LC passage 1989-2004 10,000-40,000 individuals A4i
Temminck's Stint Calidris temminckii LC non-breeding 2004 35,000-45,000 individuals A4i
Temminck's Stint Calidris temminckii LC passage 2004 100,000-150,000 individuals A4i
Dunlin Calidris alpina LC passage 2004 60,000-70,000 individuals A4i
Little Stint Calidris minuta LC non-breeding 2004 25,000-30,000 individuals A4i
Little Stint Calidris minuta LC passage 2004 80,000-120,000 individuals A4i
Great Snipe Gallinago media NT breeding 1989-2003 150-200 breeding pairs A1
Gallinago gallinago NR breeding 2004 40,000-50,000 individuals A4i
Jack Snipe Lymnocryptes minimus LC breeding 2004 250-300 breeding pairs A4i
Red-necked Phalarope Phalaropus lobatus LC breeding 2004 20,000-25,000 breeding pairs A4i
Red-necked Phalarope Phalaropus lobatus LC passage 2004 150,000-200,000 individuals A4i
Terek Sandpiper Xenus cinereus LC breeding 2004 5,000-5,500 breeding pairs A4i
Terek Sandpiper Xenus cinereus LC non-breeding 2004 10,000-12,000 individuals A4i
Wood Sandpiper Tringa glareola LC breeding 2004 5,500-7,000 breeding pairs A4i
Wood Sandpiper Tringa glareola LC non-breeding 2004 25,000-30,000 individuals A4i
Little Gull Hydrocoloeus minutus LC breeding 2004 15,000-20,000 breeding pairs A4i
Black-headed Gull Larus ridibundus LC breeding 2004 5,000-7,000 breeding pairs A4i
Common Tern Sterna hirundo LC breeding 2004 1,500-2,000 breeding pairs A4i
Common Tern Sterna hirundo LC non-breeding 2004 3,000-5,000 individuals A4i
A4iii Species group - waterbirds n/a non-breeding 1989-2004 700,000 individuals A4iii

Note: This table presents the IBA criteria triggered and the species that triggered then at the time of assessment, the current IUCN Red List category may vary from that which was in place at that time.

For more information about the IBA assessment process and criteria please click here


Habitats

IUCN Habitat Habitat detail Extent (% of site)
Forest -
Shrubland -
Grassland -
Wetlands (inland) -
Artificial - terrestrial -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
forestry -
fisheries/aquaculture -
hunting -
urban/industrial/transport -
not utilised -
nature conservation and research -
other -
For further information about the land use classification please click here.


Recommended citation
BirdLife International (2019) Important Bird Areas factsheet: Lower Ob'. Downloaded from http://www.birdlife.org on 14/11/2019.