Abstract: It is necessary to look at the big picture when managing biological resources on the QinghaiXizang (Tibetan) plateau. Plateau pikas (Ochotona curzoniae) are poisoned widely across the plateau. Putative reasons for these control measures are that pika populations may reach high densities and correspondingly reduce forage for domestic livestock (yak, sheep, horses), and because they may be responsible for habitat degradation. In contrast, we highlight the important role the plateau pika plays as a keystone species in the Tibetan plateau ecosystem. The plateau pika is a keystone species because it: (i) makes burrows that are the primary homes to a wide variety of small birds and lizards; (ii) creates microhabitat disturbance that results in an increase in plant species richness; (iii) serves as the principal prey for nearly all of the plateau's predator species; (iv) contributes positively to ecosystem-level dynamics. The plateau pika should be managed in concert with other uses of the land to ensure preservation of China's native biodiversity, as well as long-term sustainable use of the pastureland by domestic livestock.

Abstract: Nepal is a country of great natural beauty and of a rich cultural heritage. Nepal has always been a source of great attraction for her beautiful gifts mountains, landscapes, lakes, waterfalls, hillsides and green villages serrated in the form of an endless series of terraces. The entire northern border has silvery peaks of Himalayas and the country is the home of perpetual snow (Majupuria and Majupuria 1999) while southern flank is green mountains of Mahabharata with different size valleys and river duns. Even further south lays fragile lower mountains of Churiya and a little Bhavar and Tarai flat land adjoining to India.
Nepal, a country having peculiar diverse fauna and flora lies between China on the north and India on the east, west and south. It stands on latitude 26°22' to 30°27' N north and its longitude is between 80°4' to 88°12'E east. Its altitude varies from 60 – 220 m in the south rising to north up to world highest peak of Sagarmatha (Mt. Everest) 8848 m. Nepal covers of 141,577 sq km land mass with a mean breadth of 200 km provides an opportunity of diverse climate zones from subtropical to nival with sharp microclimatic condition due to its topography. Within this small area, the country has all possible landform features of the earth except the volcanic and coral islands and marine (Sharma 1999). The country experience difference in climate, wild flora and fauna as variation bestowed to physiographic condition.
Nepal lies at the transition between the Palearctic and Indo-Malayan biogeographical realms that contributed a large biological diversity in the country. More than 144 species of spiders, 5052 species of insects, 635 species of butterflies, 2,253 species of moths are on the record. The vertebrates fauna also in diverse form; 184 species of fishes (31 families and 11 orders); 43 species of amphibians (one salamander, four toads and 38 frogs Species); 100 species of reptiles (24 lizards, 4 turtle, two crocodiles and 60 snakes species); 861 species of birds (18 orders); 181 species of mammals (12 orders and 39 families) (BPP 1995 (h), Chaudhary 1998, Majupuria and Majupuria 1998, Shrestha 2003).
There are 16 protected areas in Nepal and among them 3 conservation areas and 5 National Parks lies on northern mountainous zone. Langtang National Park (LNP) is in the central Himalayan region of Nepal, 132 km north of the capital, Kathmandu, bordering, in the northeast, Tibet autonomous region of China. Langtang Lirung (7,245m) is the highest point in the park while lowest elevations drop to about 1,000m on the banks of the BhoteKoshi-Trisuli River. LNP is the second largest mountain National Park of Nepal, which covers 1710 km2 in three districts: Rasuwa, Nuwakot and Sindhupalchowk of Bagmati zone in Nepal. LNP recorded 46 species of mammals including those typical of the area, such as pika, Himalayan black bear, Himalayan Thar, leopard, ghoral, serow, snow leopard, clouded leopard, musk deer and three species of monkeys; Rhesus monkeys, hanuman langur and Assamese monkeys (Chalise 2003). Besides above, 345 species of Birds, 11 species of Herpetofauna, 30 species of fishes, 58 species of butterflies and 10 species of spiders are also recorded (BPP 1995, Khatiwada 2002). My study is focused on one of rarest and protected mountain species, the Snow Leopard.

Abstract: This handbook provides an introduction to snow leopard population survey techniques, followed by a detailed account of camera trapping methods.During the 2002 through 2004 winter field seasons, the Snow Leopard Conservancy experimented with infrared camera trapping techniques to define a methodology suitable for the high altitude environment.
In 2001 and 2002, much of our time was spent familiarizing ourselves with various infrared camera traps, their operation and setup, and comparing the effectiveness of different models and sensor types. We placed infrared camera traps along frequently used travel corridors at or near scent-sprayed rocks (rock scents) and scrape sites within 16 km2 sampling cells between January and March in 2003 and 2004. A total of 66 and 49 captures of snow leopards were tallied during 2003 and 2004, resulting in an overall capture success of 8.91 and 5.63 individuals per 100 trap-nights, respectively. Capture probabilities ranged from 0.33 to 0.46. Density estimates ranged from 8.49 ± 0.22 individuals per 100 km2 in 2003 to 4.45 ± 0.16 in 2004, with the disparity between years largely attributed to different trapping densities. Snow leopard abundance estimates were calculated using the computer program CAPTURE.