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Composition of malaria vectors and diversity of anopheline breeding habitats in the district of Mannar, Sri Lanka

Show simple item record Gunathilaka, P.A.D.H.N. Hapugoda, M.D. Wickremasinghe, A.R. Abeyewickreme, W. 2016-11-17T08:59:25Z 2016-11-17T08:59:25Z 2016
dc.identifier.citation Sri Lanka Journal of Environment Management & Planning. 2016; Vol. 1: 40-50 en_US
dc.identifier.issn 2513-292X
dc.description.abstract In the malaria elimination phase in Sri Lanka, investigation on biological and ecological factors of malaria vectors are important in planning appropriate vector controlling strategies. Lack of sufficient biological and ecological information on malaria vectors in the Northern Province of the country, a malaria endemic region, is a major constrain in successful implementation of malaria control programmes. Therefore, the objective of this study was to explore the diversity of breeding habitats and species composition of malaria vector mosquitoes in the District of Mannar, Sri Lanka. Potential habitats for Anopheles mosquito larvae were surveyed from June, 2010 to July 20 J2 on a monthly basis in selected sampling sites in the Mannar District: Mannar Town, Vankalai and Silawathiura, within a radius about 20 km. In each site, 4 sub sites were selected A total of 37,788 Anopheles representing ten species was recorded from 12 breeding habitat categories. Built wells and waste water collections were conducive for anopheline breeding. Anopheles subpictus (96.2%, n= 36,351) was the dominant species followed by An. peditaeniatus (1.47%, n= 557), An. barbirostris (1.23%, n= 463), An. nigerriums (0.75%,n = 285), An. varuna (0.19%, n= 74), An. barbumbrosus (0.1%, n= 38), An. vagus' (0.03%, n= 12), An. pallidus (0.01%, n= 4), An.jamesii (0.05%, n= 2) and An. pseudojamesi (0.05%, n= 2). Use of wells and waste water drains as breeding places by potential malaria vectors indicates that both of these habitats act as larval reservoirs during the dry season. Presence of theses habitats in close proximity to human habitats create a potential risk of malaria transmission among humans. Therefore, health authorities need to be vigilant on these new habitats in vector control programmes. en_US
dc.language.iso en_US en_US
dc.publisher Central Environmental Authority (CEA) en_US
dc.subject Malaria en_US
dc.title Composition of malaria vectors and diversity of anopheline breeding habitats in the district of Mannar, Sri Lanka en_US
dc.type Article en_US

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