Biodiversity of Dragonflies and their Life Threatening Factors in Tehsil Chamla and Daggar of District Buner,Khyber Pakhtunkhwa,Pakistan

The study was aimed at determining species composition,relative abundance and habitat preference of adult dragonflies in relation to increasing aquatic and air pollution in tehsils dagger and chamtala of district buner,khyber pakhtunkhwa. for this,surveys were conducted during may to october,2013 and eleven species with seven genera were recorded. among these,three species (trithemis festiva,orthetrum pruinosum neglectum and trithemis aurora) were found constant,while three (orthetrum anceps,sympetrum commixta and orthetrum triangulare) were observed to be moderate and two (onychogomphus bistrigatus and palpopleura sexmaculata) were found to be infrequent in their occurrence. perennial riverine habitats represented four species,seasonal streams with inhabiting three species and springs with only two dwelling species. only one species was recorded from crop fields and ponds. for seasonal occurrence,119 dragonflies were observed in july while seven in october. the aquatic and air pollution from huge number (n=600) of marble factories in daggar and more use of pesticides in chamla were observed to affect drastically the dragonfly population in the area. present study therefore emphasizes conservation of odonata fauna by implanting proper treatment plant for marble and pesticidal wastes. copyright 2016 zoological society of pakistan.