Productivity of malaria vectors from different habitat types in the western Kenya highlands.
Productivity of malaria vectors from different habitat types in the western Kenya highlands.
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DOI：
10.1371/journal.pone.0019473
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发表时间：
2011-04-29
期刊：
影响因子：
3.7
通讯作者：
Fillinger U
中科院分区：
文献类型：
--
作者：
Ndenga BA;Simbauni JA;Mbugi JP;Githeko AK;Fillinger U
蚊子幼虫源管理（LSM）如果不是因为需要定期针对所有潜在栖息地，本可以成为综合疟疾病媒控制的宝贵附加工具，特别是在肯尼亚西部高地等焦点传播地区。确定来自已确定生境的疟疾病媒的生产力的能力可能仅用于针对生产性生境的LSM。将肯尼亚西部3个高地的水生生境分为天然沼泽、人工沼泽、河流边缘、水坑、露天排水沟和地穴。2009年2月至5月，在每个站点选择3个不同类型的生境，采用网布法研究成虫病媒的周生产力，并记录其生境特征。所有调查的生境类型都产生了成年疟疾病媒。水坑区冈比亚按蚊平均成虫产量为1.8/m2，是其他生境类型的11 ~ 900倍。然而，水坑是最不稳定的栖息地，在所有采样场合中有43%的水，占研究区域所有绘制的栖息地的5%，而露天排水沟占72%。按蚊后期幼虫密度随生物膜的存在而显著增加，但随表面积的增加或水流的流动而降低。考虑到生境的稳定性和频率，水坑仍然是疟疾病媒最多产的生境类型，紧随其后的是露天排水沟。尽管An的生产率。Gambiae s.l.在小生境和不稳定生境中最大，估计其在一个地区的总体生产力需要考虑较稳定的生境及其地表扩展。因此，仅以高产生境为目标不太可能充分降低疟疾病媒密度。
Mosquito Larval Source Management (LSM) could be a valuable additional tool for integrated malaria vector control especially in areas with focal transmission like the highlands of western Kenya if it were not for the need to target all potential habitats at frequent intervals. The ability to determine the productivity of malaria vectors from identified habitats might be used to target LSM only at productive ones. Each aquatic habitat within three highland sites in western Kenya was classified as natural swamp, cultivated swamp, river fringe, puddle, open drain or burrow pit. Three habitats of each type were selected in each site in order to study the weekly productivity of adult malaria vectors from February to May 2009 using a sweep-net and their habitat characteristics recorded. All surveyed habitat types produced adult malaria vectors. Mean adult productivity of Anopheles gambiae sensu lato in puddles (1.8/m2) was 11–900 times higher than in the other habitat types. However, puddles were the most unstable habitats having water at 43% of all sampling occasions and accounted for 5% of all habitats mapped in the study areas whereas open drains accounted for 72%. Densities of anopheline late instars larvae significantly increased with the presence of a biofilm but decreased with increasing surface area or when water was flowing. Taking stability and frequency of the habitat into account, puddles were still the most productive habitat types for malaria vectors but closely followed by open drains. Even though productivity of An. gambiae s.l. was greatest in small and unstable habitats, estimation of their overall productivity in an area needs to consider the more stable habitats over time and their surface extension. Therefore, targeting only the highly productive habitats is unlikely to provide sufficient reduction in malaria vector densities.
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影响因子：
3.3
作者：
Fillinger, U;Sonye, G;Becker, N
通讯作者：
Becker, N
影响因子：
2.1
作者：
Carlson JC;Dyer LA;Omlin FX;Beier JC
通讯作者：
Beier JC
影响因子：
3
作者：
Chen, H;Minakawa, N;Yan, GY
通讯作者：
Yan, GY
DOI：
10.1016/s0035-9203(98)90936-1
发表时间：
1998-01-01
影响因子：
2.2
作者：
Hay, SI;Snow, RW;Rogers, DJ
通讯作者：
Rogers, DJ
DOI：
10.4269/ajtmh.2007.77.660
发表时间：
2007-10-01
影响因子：
3.3
作者：
Afrane, Yaw A.;Zhou, Goufa;Yan, Guiyun
通讯作者：
Yan, Guiyun