Dvuob'ye (Russia (Central Asian)) - BirdLife IBA factsheet

RU2004

Dvuob'ye

Current view: Data table and detailed info

IBA Justification

The site was identified as important in 2006 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species') at the site:

Species	Red List¹	Season	Year(s)	Size	IBA criteria
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	NT	passage	2001	20,000-40,000 individuals	A4i
Little Stint Calidris minuta	LC	passage	2001	40,000-60,000 individuals	A4i
Pin-tailed 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	breeding	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	breeding	1989-2001	1,500,000-4,000,000 individuals	A4iii

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2006) may differ.

IBA Protection

Year	Protected Area	Designation	% overlap with IBA
1985	Kunovatsky	Zakaznik (Federal)	11
1994	Lower Dvuobje	Ramsar Site, Wetland of International Importance	27
1994	Synsko-Vojkarskaya etnicheskaya territoriya	Natural-ethnic Territory	3

Habitats

Habitat¹	Habitat detail	% of IBA
Grassland	Humid	60
Wetlands (inland)	Temporary water bodies, Standing fresh water, Rivers & streams	21
Shrubland		13
Forest	Mixed	6
Artificial/Terrestrial		minor (<10)

1. IUCN Habitat classification.

Land use

Land use	% of IBA
fisheries/aquaculture	100
hunting	92
not utilised	20
nature conservation and research	8
forestry	6
other	4
rangeland/pastureland	2
urban/industrial/transport	minor (<10)

Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Dvuob'ye (Russia (Central Asian)). Downloaded from https://datazone.birdlife.org/site/factsheet/dvuobye-iba-russia-(central-asian) on 22/11/2024.