New Species of Frogs Recorded in Bangladesh
Published : 03 Feb 2017, 01:08
During a series of surveys carried out during 2016- early 2017 in areas of mixed-evergreen forest along the river Karnaphuli of Chittagong Hill Tracts a rare species of frog named Gerbil's stream frog was spotted and identified for the first time in Bangladesh.
The Explorer Team of the River & Life Quest programme headed by Mr. Kabir Bin Anwar, Team Leader and Director General, Prime Minister’s Office recorded a new species of frog named “Gerbil's stream frog”,first time in Bangladesh from a hill stream of mixed-evergreen forest in Barkal reserve forest at Rangamati of Chittagong Hill Tracts.
Dr. Anisuzzaman Khan, Chief Consultant of River and Life Questprogramme together with the researchers, Mr. Fazle Rabbi, Mr. Shakil Aronno, Mr. Hossain Sohel and Mr. Rajib, located the live and camouflaged specimen from a steep rocky hill stream of Barkal reserve forest on 16 January 2017. Detail features of the specimen, morphometric and habitat composition was recorded in both video and still forms.
Dr. Khan after comprehensive literature review and taxonomic research on the specimen, identified the species as Amolposgerbillus (Anaandale 1912) belongs to family Ranidaeof class Amphibia. The common Englishsynonyms are Gerbil stream frog, Small-eared torrent frog and Yembung sucker frog.
The frog has large and prominent barred discs in fore limbs, smaller in hind toe tips,skin is highly granular having dark brick blotches engraved on green back and the ventral part is white. This beautiful stream frog is found and distributed in the high gradient, torrent stream hill streams of Mynamar and India. It is native to northern and northeastern India, Tibet (China), and Myanmar. This species has been recorded only from Dihang-Dibang Biosphere Reserve and Mouling National Park (Arunachal Pradesh) in India.
It is associated with streams and riparian vegetation within tropical evergreen forest. It exclusively occurs on boulders and bedrock in and along fast-flowing, clear-water forest streams, from lowlands to highlands (100m 1700m asl). Breeding takes place in streams.
There is little available information on egg deposition or larval ecology.After its discovery here, Bangladesh becomes a new geographical range of occurrence of the species. Research is required on the species’ taxonomy, population status, life history and ecology.
The new Bangla name suggested for the frog as “JarnaPari” by Mr. kabir Bin Anwar based on its habit and habitat.
Photo Courtesy: Ekattor Television
Writer: Chief consultant of River and Life Quest programme
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