RU2004
Dvuob'ye


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 breeding 2001 100-150 breeding pairs A3
Whooper Swan Cygnus cygnus LC passage 2001 800-2,000 individuals A4i
Tundra Swan Cygnus columbianus LC passage 2001 300-650 individuals A4i
Red-breasted Goose Branta ruficollis VU passage 1999 3,000-7,000 individuals A1, A4i
Bean Goose Anser fabalis LC passage 1989-2001 5,000-10,000 individuals A4i
Greater White-fronted Goose Anser albifrons LC passage 1989-2001 10,000-30,000 individuals A4i
Lesser White-fronted Goose Anser erythropus VU passage 2000 400-600 individuals A1, A4i
Common Scoter Melanitta nigra LC passage 2001 70,000-150,000 individuals A4i
Common Goldeneye Bucephala clangula LC breeding 2000 400-500 breeding pairs A3, A4i
Common Goldeneye Bucephala clangula LC passage 2000 2,000-3,000 individuals A4i
Smew Mergellus albellus LC breeding 2001 350-700 breeding pairs A3, A4i
Smew Mergellus albellus LC non-breeding 1989-2001 2,600-25,000 individuals A4i
Red-breasted Merganser Mergus serrator LC breeding 1966-2001 130-290 breeding pairs A4i
Common Pochard Aythya ferina VU breeding 2001 2,000-3,500 breeding pairs A4i
Common Pochard Aythya ferina VU passage 2001 10,000-20,000 individuals A4i
Tufted Duck Aythya fuligula LC breeding 2001 3,500-5,500 breeding pairs A4i
Tufted Duck Aythya fuligula LC passage 2001 45,000-70,000 individuals A4i
Greater Scaup Aythya marila LC passage 2001 35,000-60,000 individuals A4i
Garganey Spatula querquedula LC breeding 2001 2,000-4,000 breeding pairs A4i
Garganey Spatula querquedula LC passage 2001 6,000-12,000 individuals A4i
Northern Shoveler Spatula clypeata LC breeding 2001 2,500-3,500 breeding pairs A4i
Northern Shoveler Spatula clypeata LC passage 2001 10,000-15,000 individuals A4i
Eurasian Wigeon Mareca penelope LC breeding 2001 8,500-13,000 breeding pairs A3, A4i
Eurasian Wigeon Mareca penelope LC passage 2001 40,000-65,000 individuals A4i
Northern Pintail Anas acuta LC breeding 2001 13,000-20,000 breeding pairs A4i
Northern Pintail Anas acuta LC passage 2001 100,000-150,000 individuals A4i
Common Teal Anas crecca LC breeding 2001 3,000-4,500 breeding pairs A4i
Common Teal Anas crecca LC passage 2001 9,000-15,000 individuals A4i
Horned Grebe Podiceps auritus VU breeding 2001 1,000-3,000 breeding pairs A3, A4i
Eurasian Curlew Numenius arquata NT breeding 2000 350-600 breeding pairs A4i
Ruff Calidris pugnax LC passage 2001 10,000-15,000 individuals A4i
Temminck's Stint Calidris temminckii LC passage 2001 120,000-200,000 individuals A4i
Dunlin Calidris alpina LC passage 2001 20,000-40,000 individuals A4i
Little Stint Calidris minuta LC passage 2001 40,000-60,000 individuals A4i
Pintail Snipe Gallinago stenura LC breeding 1989-2001 300-600 breeding pairs A4i
Common Snipe Gallinago gallinago LC breeding 2001 9,000-15,000 breeding pairs A4i
Red-necked Phalarope Phalaropus lobatus LC breeding 2001 7,000-8,000 breeding pairs A4i
Terek Sandpiper Xenus cinereus LC breeding 2001 1,000-2,000 breeding pairs A4i
Common Greenshank Tringa nebularia LC breeding 2001 350-500 breeding pairs A3
Little Gull Hydrocoloeus minutus LC breeding 2001 65,000-80,000 breeding pairs A4i
Black-headed Gull Larus ridibundus LC breeding 1989-2001 15,000-20,000 individuals A4i
Common Tern Sterna hirundo LC winter 1989-2001 15,000-20,000 individuals A4i
Three-toed Woodpecker Picoides tridactylus LC breeding 1989-2001 present A3
Siberian Tit Poecile cinctus LC breeding 1989-2001 present A3
Arctic Warbler Phylloscopus borealis LC breeding 1989-2001 present A3
Brambling Fringilla montifringilla LC breeding 1989-2001 present A3
Pine Grosbeak Pinicola enucleator LC breeding 1989-2001 present A3
Yellow-breasted Bunting Emberiza aureola CR breeding 1963-2000 700-1,000 breeding pairs A1
Rustic Bunting Emberiza rustica VU breeding 1989-2001 present A3
A4iii Species group - waterbirds n/a - - present 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


IBA Protection

Protection status:

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
Synsko-Vojkarskaya etnicheskaya territoriya Natural-ethnic Territory 1,424,934 protected area overlaps with site 0
Lower Dvuobje Ramsar Site, Wetland of International Importance 540,000 protected area overlaps with site 0
Kunovatsky Zakaznik (Federal) 220,000 protected area overlaps with site 0
Kunovatski International Park 0 protected area contains site 0
Berezovskiy Zakaznik 43,320 protected area is adjacent to site 0

Habitats

IUCN Habitat Habitat detail Extent (% of site)
Forest Mixed woodland -
Shrubland -
Grassland Humid grasslands -
Wetlands (inland) Mud flats and sand flats, Standing freshwater, Rivers and streams -
Artificial/Terrestrial -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
rangeland/pastureland -
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 (2020) Important Bird Areas factsheet: Dvuob'ye. Downloaded from http://www.birdlife.org on 06/06/2020.