The Western Himalayan alpine shrub and meadows is a montane grasslands and shrublands ecoregion of Nepal, India, and Tibet, which lies between the tree line and snow line in the western portion of the Himalaya Range.
| Western Himalayan alpine shrub and meadows | |
|---|---|
 | |
| Ecology | |
| Realm | Palearctic |
| Biome | Montane grasslands and shrublands |
| Borders | |
| Bird species | 389[1] |
| Mammal species | 61[1] |
| Geography | |
| Area | 70,200 km2 (27,100 sq mi) |
| Countries | |
| Conservation | |
| Habitat loss | 17.291%[1] |
| Protected | 19.18%[1] |
Setting
editThe Western Himalayan alpine shrub and meadows covers an area of 70,200 square kilometres (27,100 sq mi), extending from the Kali Gandaki Gorge in central Nepal westwards across Uttarakhand and eastern Himachal Pradesh states of India to the gorge of the Sutlej River, and into southwestern Tibet. The alpine shrub and meadows lie between approximately 3,000 and 5,000 metres (9,800 and 16,400 ft) elevation.
The Eastern Himalayan alpine shrub and meadows lie east of the Kali Gandaki gorge, while the Northwestern Himalayan alpine shrub and meadows lies west of the Sutlej. Below 3,000 metres (9,800 ft) lie the Western Himalayan subalpine conifer forests. Permanent ice and snow lies above 5,000 metres (16,000 ft). To the north, the Western Himalayan alpine shrub and meadows transition to the drier Central Tibetan Plateau alpine steppe of central Tibet. The Karakoram-West Tibetan Plateau alpine steppe lies to the southwest.
Flora
editAlpine shrublands, dominated by rhododendrons, predominate at lower elevations close to the treeline.
Above the shrublands are alpine meadows, known as bugyals or bughiyals, which support a variety of herbaceous plants, including species of Anaphalis, Cyananthus, Jurinea, Morina, Potentilla, Gentiana, Delphinium, Meconopsis, Pedicularis, Anemone, Aster, Polygonum, Primula, and Saussurea. In the spring and summer, the alpine meadows are covered with brightly colored flowers.
On the upper slopes, low plants of genera Saxifraga, Allium, Corydalis, Eriophyton, Stellaria, Soroseris, and Cremanthodium grow among the boulders and scree.
An alpine steppe of Caragana pygma, C. gerardiana, Lonicera spinosa, Juniperus squamata, Juniperus indica, Ephedra gerardiana, Hippophae tibetana, Myricaria rosea, Lonicera spinulosa, and Berberis can be found in drier parts of the ecoregion.
Fauna
editLarge mammals include the snow leopard (Uncia uncia), bharal or Himalayan blue sheep (Pseudois nayaur), Himalayan tahr (Hemitragus jemlahicus), Himalayan musk deer (Moschus chrysogaster), and mainland serow (Capricornis sumatraensis). Smaller mammals include weasels and pikas.
Conservation
editSeveral protected areas lie within or partly within the ecoregion, including:
- Royal Dhorpatan Hunting Reserve (Nepal)
- Govind Pashu Vihar Wildlife Sanctuary (Uttarakhand, India)
- Lippa Asrang Wildlife Sanctuary (Himachal Pradesh, India)
- Sangla Wildlife Sanctuary (Raksham Chitkul) (Himachal Pradesh, India)
- Gangotri National Park (Uttarakhand, India)
- Kedarnath Wild Life Sanctuary (Uttarakhand, India)
- Valley of Flowers National Park (Uttarakhand, India)
- Nanda Devi National Park (Uttarakhand, India)
- Shey-Phoksundo National Park (Nepal)
- Annapurna Conservation Area (Nepal)
See also
editReferences
edit- ^ a b c d Hoekstra, J. M.; Molnar, J. L.; Jennings, M.; Revenga, C.; Spalding, M. D.; Boucher, T. M.; Robertson, J. C.; Heibel, T. J.; Ellison, K. (2010). Molnar, J. L. (ed.). The Atlas of Global Conservation: Changes, Challenges, and Opportunities to Make a Difference. University of California Press. ISBN 978-0-520-26256-0.
- "Western Himalayan alpine shrub and meadows". Terrestrial Ecoregions. World Wildlife Fund.
- World Wildlife Fund, ed. (2001). "Western Himalayan alpine shrub and meadows". WildWorld Ecoregion Profile. National Geographic Society. Archived from the original on 2010-03-08.