Larval Ecology of Anopheles Mosquitoes in Kudat, Sabah

Wilfredo Escalante Aure and Nelia Palaria Salazar and Chua, Tock Hing (2021) Larval Ecology of Anopheles Mosquitoes in Kudat, Sabah. Borneo Journal of Medical Sciences, 15. pp. 49-62. ISSN 1985-1758 (P-ISSN) , 2710-7353 (E-ISSN)

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The emergence of human Plasmodium knowlesi malaria appeared to have been precipitated by the displacement of the natural environment of macaques and Anopheles mosquitoes resulting from deforestation and land-use changes in Malaysia. A longitudinal survey of larval habitats was conducted from May 2015 to April 2016 in the District of Kudat, Sabah to better understand how these changes have affected mosquitoes across six land use categories. Larvae were collected by dipping and reared in the laboratory for the identification of adults. Five anopheline and three culicine species were present: Anopheles balabacensis, An. barbirostris, An. lesteri, An. borneensis, An. umbrosus, Aedes albopictus, Culex gelidus, and Toxorhynchites sp. An. Balabacensis was found in all six land-use types. Biodiversity by genera was high in all land-use types. The relative importance of land use types and larval habitats as sources of potential vectors was analyzed by the Kruskal-Wallis H test by ranks. In decreasing order Anopheles larvae were found in rubber tree plantation > coconut plantation > clearing site > palm oil plantation > forest > settlement area. Important larval habitats were intermittent stream > ditch > pond > artificial container > puddle > river > slow-flowing stream. Eighteen breeding sites of An. Balabacensis were within (500 m) the average maximum flight range of the species and houses at risk for malaria. Knowledge gained from the study can be used to assess the need for vector control in preventing the spread of P. Knowles in vulnerable areas.

Item Type: Article
Keyword: Plasmodium knowlesi , Larval survey , Anopheles balabacensis , Malaria in Sabah
Subjects: R Medicine > RA Public aspects of medicine > RA1-1270 Public aspects of medicine > RA421-790.95 Public health. Hygiene. Preventive medicine > RA643-645 Disease (Communicable and noninfectious) and public health
R Medicine > RC Internal medicine > RC31-1245 Internal medicine > RC109-216 Infectious and parasitic diseases
Department: FACULTY > Faculty of Medicine and Health Sciences
Date Deposited: 12 Jul 2022 20:07
Last Modified: 12 Jul 2022 20:07

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