Yawan damisar mangrove a cikin Sundarbans bai kai yadda aka yi imani da shi ba A cewar majiyoyin hukuma, bayan kidayar da aka yi amfani da kyamarorin da aka boye a cikin bishiyoyi don kirga su.
Kawai kusan damisa 100 sun rage a daushen mangrove da ke yankin Sundarbans, nesa da kimanin adadi wanda aka ƙidaya a baya. An yi rikodin kimanin damisa 440 a yayin ƙidayar da aka yi a baya a cikin 2004 a cikin Sundarbans, babban dajin mangrove a duniya kuma shi kaɗai ne mazaunin waɗannan manyan kuliyoyin.
Masana sun ce hanyar da ta fi dacewa ita ce ta haifar da raguwar lambobin su kwatsam, kuma suna cewa ɓoyayyun kyamarorin da aka yi amfani da su a wannan lokacin sun ba da daidaito mafi kyau a cikin adadin damisa da aka samo a wannan yankin a Indiya.
Tapan Kumar Dey, mai kula da kula da namun daji na gwamnati, ya ce binciken kamara na tsawon shekara wanda ya kare a watan Afrilun bana ya gano lambobin damisa da za a samu tsakanin 83 zuwa 130, wanda ya bada kimanin 106.
Bengal tigers zama galibi a Indiya, inda a duk ƙasar akwai adadinsu daga 2.226, tare da ƙananan jama'a a Bangladesh, Nepal, Bhutan, China, da Myanmar.
Monirul Khan, farfesa a fannin ilimin dabbobi a Jami'ar Jahngirnagar da ke Bangladesh kuma masani kan ire-iren wadannan kuliyoyin a matakin kasa ya ce binciken ya tabbatar da mummunan tsoronsa.
Khan ya kula da hakan dole ne gwamnati ta kara kaimi wajen kare wadannan dabbobi, waɗanda ke ganin yawansu ya ragu saboda farauta da saurin ci gaba a kan iyakar dajin.
Gidauniyar kula da namun daji ta ce damisa na cikin hatsarin bacewa a duk duniya. Lambobinsu sun ragu daga 100.000 a cikin 1900 zuwa 3.200 a yanzu.