Land use and land cover changes and spatiotemporal dynamics of anopheline larval habitats during a four-year period in a highland community of Africa

Munga, Stephen, Yakob, Laith, Mushinzimana, Emmanuel, Zhou, Guofa, Ouna, Tom, Minakawa, Noboru, Githeko, Andrew and Yan, Guiyun (2009) Land use and land cover changes and spatiotemporal dynamics of anopheline larval habitats during a four-year period in a highland community of Africa. American Journal of Tropical Medicine and Hygiene, 81 6: 1079-1084. doi:10.4269/ajtmh.2009.09-0156


Author Munga, Stephen
Yakob, Laith
Mushinzimana, Emmanuel
Zhou, Guofa
Ouna, Tom
Minakawa, Noboru
Githeko, Andrew
Yan, Guiyun
Title Land use and land cover changes and spatiotemporal dynamics of anopheline larval habitats during a four-year period in a highland community of Africa
Journal name American Journal of Tropical Medicine and Hygiene   Check publisher's open access policy
ISSN 0002-9637
1476-1645
Publication date 2009-12-01
Sub-type Article (original research)
DOI 10.4269/ajtmh.2009.09-0156
Open Access Status Not yet assessed
Volume 81
Issue 6
Start page 1079
End page 1084
Total pages 6
Place of publication Deerfield, IL, United States
Publisher American Society of Tropical Medicine and Hygiene
Language eng
Formatted abstract
Spatial and temporal variations in the distribution of anopheline larval habitats and land use and land cover (LULC) changes can influence malaria transmission intensity. This information is important for understanding the environmental determinants of malaria transmission heterogeneity, and it is critical to the study of the effects of environmental changes on malaria transmission. In this study, we investigated the spatial and temporal variations in the distribution of anopheline larval habitats and LULC changes in western Kenya highlands over a 4-year period. Anopheles gambiae complex larvae were mainly confined to valley bottoms during both the dry and wet seasons. Although An. gambiae larvae were located in man-made habitats where riparian forests and natural swamps had been cleared, Anopheles funestus larvae were mainly found in permanent habitats in pastures. The association between land cover type and occurrence of anopheline larvae was statistically significant. The distribution of anopheline positive habitats varied significantly between months, during the survey. In 2004, the mean density of An. gambiae was significantly higher during the month of May, whereas the density of An. funestus peaked significantly in February. Over the study period, major LULC changes occurred mostly in the valley bottoms. Overall, farmland increased by 3.9%, whereas both pastures and natural swamps decreased by 8.9% and 20.9%, respectively. The area under forest cover was decreased by 5.8%. Land-use changes in the study area are favorable to An. gambiae larval development, thereby risking a more widespread distribution of malaria vector habitats and potentially increasing malaria transmission in western Kenya highlands.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: ERA 2012 Admin Only
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Created: Thu, 19 Jan 2012, 21:11:27 EST by Dr Laith Yakob on behalf of School of Biological Sciences