Delta of Orkhon and Selenge Rivers (16348)
Mongolia, Asia
Site overview
KBA status: confirmed
Year of last assessment: 2009
National site name: Delta of Orkhon and Selenge Rivers
Central coordinates: Latitude: 50.2000, Longitude: 106.1333
System: freshwater, terrestrial
Elevation (m): 594 to 894
Area of KBA (km2): 214.19691
KBA classification: Global/Regional TBD
Legacy site: Yes
Site details
Site description: The delta of the Orkhon and Selenge Rivers is formed at the junction of the two largest rivers in Mongolia. The surrounding areas support wet grassland, steppe and mountain steppe. The Orkhon-Selenge region is the most important agricultural zone in Mongolia, and there is a lot of cultivation and human settlements along the river valleys. The most serious threat to biodiversity at the site is the discharge of waste, including heavy metals from nearby gold mines. A further concern is human settlement on islands in the rivers. Many fallow fields have been abandoned, which is resulting in the loss of top soil.
Rationale for qualifying as KBA: This site qualifies as a Key Biodiversity Area of international significance because it meets one or more previously established criteria and thresholds for identifying sites of biodiversity importance (including Important Bird and Biodiversity Areas, Alliance for Zero Extinction sites, and Key Biodiversity Areas)
Additional biodiversity: The site supports the following Globally Threatened bird species: Swan Goose Anser cygnoides (EN); Baikal Teal Anas formosa (VU); Lesser Kestrel Falco naumanni (VU); and Great Bustard Otis tarda (VU). The site also supports at least 1% of the flyway populations of the following congregatory waterbirds: Bean Goose Anser fabalis; Greylag Goose A. anser; Ruddy Shelduck Tadorna ferruginea; and Demoiselle Crane Anthropoides virgo. Non-bird biodiversity: Nationally threatened mammal species, including Red Fox Vulpes vulpes, Corsac Fox V. corsac, Grey Wolf Canis lupus and Siberian Marmot Marmota sibirica (EN), are commonly seen at this site. Furthermore, nationally threatened fish species, such as Mongolian Grayling Thymallus revirostris, Lenok Brachymystax lenok and Taimen Hucho taimen, occur in the rivers.
Habitats
| IUCN Habitat | Coverage % | Habitat detail |
|---|---|---|
| Wetlands(Inland) | 50 | |
| Grassland | 50 |