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RANGPUR, Feb 12 (BSS): Agriculture, ecology and bio- diversity are on the verge of danger due to early drying up of water bodies every year and indiscriminate and excessive use of chemical fertilisers and pesticides in crop fields in the northern region of the country.
Experts, officials and local people said due to the gradual desertification process various species of sweet water fish, insects, animals and birds have already disappeared from the region during the last four decades posing a serious threat to bio-diversity.
The extinct species of sweet water fish are-- Chanda, Bou, Balia, Kholsa, Banspatari, Gazar, Aikar, Nola, Bhutni, Azla, Puiyan, Batasi, Eta, Eel, Poba, Balu-toka.
The extinct species of aquatic animals are-- crab, frog, leech, snail, tadpole, toad, oyster, porpoise, iguana, conch-shell.
The extinct insects include beetle, black-bee, butterfly, cricket, earthworm, firefly, grasshopper, hornet, spider, wasp, white ant, gnat, scorpion and many others.
Birds like cockatoo, crane, cuckoo, dove, green pigeon, hawk, heron, kingfisher, martin, nightingale, owl, parrot, partridge, pelican, raven, skylark, snipe, sparrow, swallow, weaver bird, woodpecker, stork, gull, bou katha kao, sarali, satkana, dubdubi, coyle, thothbhanga, jalkukkus, sona bou, satbhaira and many other local species are among those extinct.
Many animals including squirrel, fox, mongoose, hare, jackal, forest-cat, forest-cock, porcupine, wood-cutter etc., have not been visible in the region in the past few decades, they said.
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