Conservation of avifaunal diversity of two freshwater ponds of Rangenahalli area, Lakkavalli, Shimoga, Karnataka
Anusha GS, Shwetha Alavandi, BB Hosetti
A study of bird fauna was conducted at Rangenahalli and Garike ponds during January 2017 to April 2017. The Rangenahalli pond is situated 35 km away from Shivamogga and 10 km from Shankaraghatta, approximately 5 acres. Garike pond is situated 1-2 km away from the university, approximately 1-2 acres. These ponds are used for the purpose of agriculture irrigation and drinking (domestic animals), and for inland fisheries. A total of 53 species of avifauna were recorded from 17 families and 29 families from Rangenahalli and Garike pond respectively, by direct count method using binoculars from both the ponds respectively. Out of 53 species, 10 species were migratory, 43 species resident birds. According to red data list in these birds 2 species are near threatened and other 51 species are least concerned. Avifaunal diversity was high in January and February as there was optimum water storage, availability of abundant food and increased vegetation. The minimum diversity was recorded in April due to non availability of food, human interference, loss of water etc. It is, therefore, pertinent that protection and conservation programmes for the hitherto wetlands should be given importance.