I n terms of biological diversity, the Himalayan region is one of the world’s richest ecosystems (Pei and Sharma 1998) and has been identified as a “biodiversity hotspot.” Although Nepal constitutes only about 0.09% of the world’s land area, it harbors a remarkable number of faunal species: 4.5% of all mammals, 9.5% of birds, 1.2% of amphibians, 2.03% of reptiles and 6.8% of butterflies and mot...