Cherskii-Kolyma mountain tundra

The Cherskii-Kolyma mountain tundra is a tundra ecoregion located in the Palearctic biogeographic realm, covering Europe, northern Asia, North Africa, and the northern Middle East, spanning approximately 560,462 km². Classified under the WWF ecoregion code PA1103, this region represents a distinct ecological community shaped by its unique combination of climate, geography, and evolutionary history.

Climate and Vegetation

This ecoregion experiences extremely cold with long winters, short cool summers, and very low precipitation. The dominant vegetation consists of mosses, lichens, sedges, and dwarf shrubs growing on permafrost soils. These conditions create the foundation for the ecological communities found within the Cherskii-Kolyma mountain tundra.

Ecological Significance

Tundra ecosystems are among the most fragile on Earth, with slow-growing vegetation and species adapted to extreme cold. Migratory caribou, Arctic foxes, and snowy owls are emblematic tundra species. The Cherskii-Kolyma mountain tundra contributes to the broader biodiversity patterns of the Palearctic realm.

Geographic Distribution

The Cherskii-Kolyma mountain tundra extends entirely within Russia. This geographic range places it within the Palearctic realm, one of the eight major biogeographic divisions of the world.

Notable Species

The Cherskii-Kolyma mountain tundra supports a range of wildlife, including Arctic Warbler (Phylloscopus borealis), Ball Mustard (Neslia paniculata), Bastard Alkanet (Buglossoides arvensis), bicoloured white-toothed shrew, bicoloured shrew (Crocidura leucodon), Big-Leaf Linden (Tilia platyphyllos), Black Henbane (Hyoscyamus niger), Black-Necked Grebe (Podiceps nigricollis), Black-tailed Godwit (Limosa limosa), and 42 more species. Among these, 20 species are classified as threatened on the IUCN Red List, underscoring the conservation importance of this ecoregion.

Conservation

Like many tundra ecosystems, the Cherskii-Kolyma mountain tundra faces threats from permafrost thaw, oil and gas extraction, and rapid Arctic warming. Conservation efforts in this ecoregion focus on habitat preservation, sustainable land management, and protecting corridors that connect fragmented habitat patches.