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Item Vegetation characteristics and patterns of livestock grazing in Changthang Plateau, Eastern Ladakh(Wildlife Institute of India, Dehradun, 2002) Rawat, G.S.; Adhikari, B.S.The Changthang plateau in the eastern Ladakh, covering an area of ca. 21,000 km2 and mean altitude of ca. 4500 m above sea level, forms the western extension of the Tibetan plateau. Owing to cold arid environment, unique geology and palaeo-history this area harbours interesting assemblages of flora and fauna. Besides, the area supports a reasonably high biomass of domestic livestock comprising sheep, goats, yaks, donkeys and horses belonging to the Changpa herders, a nomadic pastoral community. According to official estimates the number of livestock in the area has almost doubled since 1970s. Although livestock grazing has been an age-old practice on this plateau, very little baseline information exists on the vegetation characteristics, ecology and current herding practices in these rangelands. We studied the floristic structure, community composition and availability of forage (graminoids, forbs and shrubs) in ca. 300 km2 area of Tso Kar basin, Changthang plateau during August-September 2001. Changpa herders were interviewed to get information on their livestock holding patterns and patterns of seasonal movement. 142 sites covering various landscape units, viz., sandy plains, marsh meadows, moist meadows, scrub steppe on the lower and higher slopes, fell-fields, and stream courses were intensively searched for the vascular plants. Each site was sampled for plant species, % cover, and abundance using 10 random quadrates of one m2. In all 232 species of vascular plants belonging to 38 families and 101 genera were collected and recorded from the study area. Poaceae (39 species), Asteraceae (27 species), Cyperaceae (25 species), Brassicaceae (14 species), Fabaceae (12 species) and Ranunculaceae (12 species) were the dominant families. Analysis of Raunkiaer’s life-forms reveals that the area is dominated by two growth forms viz., Hemi-cryptophytes (largely perennial grasses and sedges, and (ii) Chamaephytic i.e., dwarf herbs and matted shrubs whose shoots die back periodically (23.47 %). Various landscape units have been compared in terms of Prominence Value (an index of forage availability) of graminoids, forbs and shrubs. It is interesting to note that the study area had a very high (1:2) monocot : dicot ratio. We believe that the current stocking densities of livestock in the study area are at the peak and condition of rangelands are still good. Further immigration of refugee herders, increase in the livestock population and ill planned developmental activities may cause rapid degradation of pastures thereby hampering both the pastoral practices and wildlife in the region. Conservation implications of the findings and need for participatory approach of the rangeland management have been discussed.Item Vegetation surveys in the Indian Trans-Himalaya: a report on the surveys conducted during summer 2000(Wildlife Institute of India, Dehradun, 2000) Rawat, G.S.; Adhikari, B.S.; Rana, B.S.Ladakh and adjacent trans-Himalayan ranges harbor a typical vegetation characterized by steppe formations, sedge-grass meadows and herbaceous communities. A few attempts have been made to classify and describe the major plant communities of the trans-Himalaya in the past. However, most of the descriptions are based on local information from a few pockets. A complete account of life form distribution and ecological characteristics from the entire range is not available. Keeping this in view, we conducted an extensive survey of vegetation in the trans-Himalaya with a view to address the following questions: (i) how similar or dissimilar are the vegetation communities found within various trans-Himalayan ranges viz., north of Pir-Panjal (Lahul), Zanskar, Changthang, Ladakh mountains, and Karakoram region, (ii) what are the proportions of various growth forms (lichens, mosses, graminoids, forbs and shrubs) within the communities of these ranges, and (iii) which are the unique, rare or endemic species within each range and what are the possible threats to such species ? We sampled the vegetation and related abiotic variables systematically along the Rohtang - Leh - Nubra road following a `Rapid GRADSECT’ approach. Data on various parameters were collected at four levels, viz., (i) General physiognomy, cover types and landscape features within 100 m x 2 km belts, (ii) Community composition of woody species and cover abundance of different life forms at a regular intervals of 2 kms, (iii) Species composition at and around 5 high passes covering various aspects and landforms, and (iv) Species composition and cover abundance around a high altitude brackish water lake. The preliminary findings of the survey include: (i) 10 distinct physiognomic units viz., Herbaceous meadow (HM), Sedge meadow (SM), Mixed scrub or steppe (MS), Riverine scrub (RS), Sparse vegetation including degraded slopes (SV), Woodland/Plantation (WP), Cultivation/Habitation (CH), Grasslands i.e., area dominated by grasses (GR) and cushionoid vegetation including mosses and lichens (CV). were identified along with their percent coverage within various sectors and also along the GRADSECT, (ii) 9 major woody communities along the Gradsect were identified, viz., Juniper woodland, Artemisia dracunculus - A. maritima, Caragana, Eurotia, Caragana - Eurotia, Artemisia gmelinii - A. salsoloides, Hippophae - Myricaria, Salix lindleyana, Lysium ruthinicum, and Ephedra gerardiana, (iii) High passes (Rohtang, Baralacha La, Lachulung La, Tanglang La, and Khardung La ranging from 3900-5500 m asl) represented different geological formations and therefore distinct plant communities. General vegetation cover, species richness, density and diversity decreased with increasing altitude and latitude, and (iv) The banks of Tso Moriri (brackish water lake) were dominated by Carex melanantha, Carex nivalis and a few other herbs which was quite different from the banks of fresh water lakes and other marsh meadows of the alpine regions.Item Field sampling protocol- mammalian fauna in Trans-Himalayan landscape, Uttarakhand, India(Wildlife Institute of India, Dehradun, 2015) Habib, Bilal; Shrotriya, Shivam; Mahar, N.; Lyngdoh, S.; Rawat, G.S.; Mohan, D.; Mondal, Indranil