023749 Pandit B R;Patel D;Pandya U (Department of Life Sciences, Bhavnagar University, Bhavnagar, Gujarat) : Biodiversity measurement of Jessore sloth bear sanctuary. Nat Envir Pollut Technol 2005, 4(1), 113-18.
Paper deals with the biodiversity of Jassore Sloth Bear Sanctuary. The vegetation was arid to semiarid and dry deciduous, thorny scrub type. The prominent species were Zizyphus, Anogeissus, Butea and Prosopis. The climate of the area is semiarid where low rain fall and high temperature prevail, The results of biodiversity parameters were: Simpson's index - D(0.771), Simpson index of similarity 1-D (0.229), Simpson's reciprocal 1/D (1.297), Snanon-Weiner's index (28.478), and Evenness index E (11.019). There were 384 species belonging to 272 genera from 99 families of angiosperm, which can be further divided as dicotyledons (314 species of 221 genera from 90 families), Monocotyledons (70 species of 51 genera from 9 families), legumes (43 species belonging to 26 genera and 3 families; Mimosaceae, Papilionaceae, Caesalpinaceae) and nonleguminous plants (341 species belonging to 246 genera and 96 families). The highly diverse dicot families were Acanthaceae, Fabaceae, and Mimosadeae. The most diverse genera were Cassia, Indigofera, and Acaccia. In monocots, the most diverse families were Poaceae, Asteraceae, and Cyperaceae, and the genera were Cyperus, Commelina, and Cynodon. The ratio of monocotyledons to dicotyledons was 1:10 of families, 1:4.33 of genera, and 1:4.48 of species. The ratio of total number of genera to species was 1:1.41. The proportion of leguminous to non-leguminous plants was 1:32 of families, 1:9.46 of genera and 1:7.93 of species. Forty five species were found to fall in the IUCN category. Out of this 20 species were indeterminate, 15 were rare, 7 were vulnerable, 2 were threatened, and 1 was endangered. The species fall under threatened and endangered status were: Anogeissus sericea, Cassia holosericea, Indigofera cutchicum, Commiphora wightii, Sterculia urens, Tecomella undulata, Solarium albicaule and Phoenix sylvestris. The sanctuary harbours 28 species of grasses, 31 species of climbers, 193 herb species, 45 species of shrubs and 87 tree species.
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