Dorekere Lake, spanning 28 acres in the southwestern part of Bengaluru, is not just a water body but a rich center of biodiversity, according to a recent study by ActionAid Association (India). The study documented 230 species of flora and fauna, including 73 herbs and shrubs, 57 tree species, and 74 bird species. This highlights the significant ecosystem services provided by the lake.
The study notes that biodiversity helps ecosystems recover from famine, drought, disease, and mitigate climate change. Journalist and science writer Nagesh Hegde pointed out the alarming reduction in the number of lakes in Bengaluru, from 400 to 227, due to realty booms and unscientific waste disposal. He called for public action to protect these natural environments.
Among the 74 bird species documented at Dorekere Lake, 11 are migratory, and four are classified as near-threatened by the International Union for Conservation of Nature. Additionally, the study recorded 26 species of butterflies from five families. The Australian Consulate-General supported the study, recommending the development of a wetland buffer zone to provide nesting and foraging space for birds. It also emphasized balancing the growth of native and non-native tree species and preventing monocultures.
The study observed that receding water levels have forced many species of waders to forage in shallow waters, while feral dogs pose a threat to ducks and other birds. It recommended measures to prevent dogs from entering the lake bed to protect the avian population.