Abstract

In the present study, the conservation status of 45 species belonging to 26 families of 22 trees and 23 shrubs were determined on the basis of IUCN conservation criteria in Tehsil Takht-e-Nasrati, District Karak, which was conducted in spring, summer and winter 2010 to 2011. There were 20 (44.44 %) vulnerable, 16 (35.56 %) rare, 7 (15.56 %) endangered and 2 (4.44 %) were infrequent. After two years extensive field studies on the basis of IUCN conservation criteria, we concluded that Gymnosporia royleana is endangered (EN) species. From the study, it was concluded that extinction and declines in plant diversity is due to a range of factors including population growth, high rates of habitat modification and deforestation, over-exploitation, the spread of invasive alien species, pollution and climate change.

Key words: Conservation, tree, shrubs, Tehsil Takht-e-Nasrati, Pakistan.