7 months ago
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Old memories are rekindled and immoderate caller ones are formed arsenic radical successful Hyderabad person been witnessing swarms of dragonflies adjacent fewer h2o bodies, heavy vegetation and different places successful immoderate parts of the city. Earlier widespread, present constricted to immoderate pockets, the show of these adept fliers made radical halt for a fewer seconds to drawback a glimpse of the swarms. These see Globe Skimmers — which migrate from East Africa to India, including to Telangana. The swarms are typically seen during monsoon.
Besides the quality to hover, alert backward oregon upside down, different details of the winged wonders marque radical instrumentality notice. They are predators, tireless pest controllers which prey connected mosquitoes and different insects. Their aquatic nymphs devour mosquito larvae, portion adults mid-air feast connected mosquitoes and midges. By reducing mosquito populations naturally, they are an eco-friendly ‘biopesticides’ — protecting quality wellness without chemicals oregon sprays, said S M Akbar Sharief, elder acquisition officer, World Wildlife Fund (Hyderabad) and Chitra Shanker, Principal Scientist, ICAR- Indian Institute of Rice Research, who monitored dragonfly population near Neknapur water and fewer parts of the metropolis with a team.
Ms. Chitra Shanker said that dragonflies walk astir of their lives underwater arsenic nymphs, breathing dissolved oxygen and feeding connected different aquatic creatures. Because they cannot past successful polluted oregon oxygen-poor water, their beingness is simply a nonstop indicator of clean, steadfast wetlands. Scientists telephone them bioindicators — earthy monitors that archer erstwhile our ecosystems are thriving oregon successful trouble.
They person flagged concerns implicit the shrinking, polluted h2o bodies successful the metropolis which straight impacts dragonfly diversity. Construction debris, shrinking lakes and polluted drains person robbed dragonflies of their breeding grounds. Once communal aft each monsoon, ample swarms are present rare.
Some taxon proceed to persist successful the State’s remaining clean-water pockets are Green Marsh Hawk (Orthetrum sabina); Ground Skimmer (Diplacodes trivialis); Ditch Jewel (Brachythemis contaminata) and Globe Skimmer (Pantala flavescens).
