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Journal of Environmental Biology

pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP
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    Abstract - Issue Sep 2010, 31 (5)                                     Back


abstract_01

Mosquito biodiversity of Dibru-Saikhowa biosphere reserve in Assam, India

 

P. Dutta*, A. Prakash, D.R. Bhattacharyya, S.A. Khan, P.R. Gogoi, C.K. Sharma and J. Mahanta

 

Regional Medical Research Centre (ICMR), N.E. Region, Dibrugarh - 786 001, India

(Received: May 26, 2009; Revised received: January 15, 2010; Accepted: February 26, 2010)

 

Abstract: Entomological surveys were conducted for three consecutive years in core and buffer zone of the Dibru-Saikhowa biosphere reserve in pre monsoon, monsoon and post-monsoon seasons. A total of 52 species of mosquitoes under eleven genera have been detected. The genus Anopheles (18 species) was the predominant followed by Culex, Aedes, Mansonia, Armigeres, Mimomyia, Ochlerostatus, Malaya, Toxorhynchites, Ficalbia and Aedeomyia. The buffer zone of the forest reserve where human habitations are there exhibited the presence of maximum number of species (49 species under 10 genera) in comparison to core zone (42 species under 10 genera). In buffer zone, maximum numbers of species (38) were recorded in monsoon season followed by post- monsoon (35 species) and Pre-monsoon season (34 species). Whereas in core zone, maximum number of species were collected in post monsoon season followed by pre monsoon season and monsoon season. In Core and buffer zone, the maximum species were recorded from the ground pool habitat and slow flowing stream respectively. Among the disease vectors, the potential Japanese encephalitis vectors incriminated in India were very much prevalent. This study provides the list of available mosquito species recorded for the first time in the Dibru-Saikhowa biosphere reserve.

Key words: Mosquito, Biodervisity, Dibru-Saikhowa biosphere reserve, Japanese encephalitis

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