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Diversity and Population Turnover of Insect Fauna in Pushkar Lake in the Aravalli Region of Rajasthan, India

Author Affiliations

  • 1Govt. Dungar College, Bikaner, INDIA

Res. J. Recent Sci., Volume 4, Issue (ISC-2014), Pages 308-312, (2015)

Abstract

Anthropogenic pressures, holy rituals and tourism have adverse impact on the water quality of the sacred lakes. Physico-chemical parameters are directly affecting to diversity of insect fauna of the water bodies. The present communication deals with the year round study on of insect fauna and its ecological aspects in the Pushkar lake, Ajmer from April, 2012 to March, 2013. Physical-chemical limnology revealed that the lake was shallow with turbid, alkaline, hard, slightly saline and well oxygenated water. The adult insect fauna displayed a diversity of 18 species belonging to families namely Dytiscidae (4), Helodidae (1), Hydraenidae (1), Hydrophilidae (4), Psephenidae (1), Corixidae (1), Gerriidae (2), Nepidae (2), Notonectidae (1) and Velidae (1) besides the larval forms of aquatic and terrestrial insect. The data on population turnover and periodicity of occurrence is viewed upon to adjudge the sensitivity of species to environmental condition.

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