The efficiency of bird-baited traps and collection heights for sampling potential West Nile mosquito vectors was studied during the 2006 rainy season (between September 27 and November 26) in Barkedji area situated in the sahelian area of Senegal (West Africa). Each night, two traps were set on the ground-level and two on the canopylevel (approximately 3 m) each containing either a chicken or a pigeon, the traps being rotated the following nights. A total of 1,030 mosquitoes were collected using 66 traps-nights. Culex species were predominant and represented 92.2% of the fauna of which 63% belonged to Cx. neavei group Theobald whereas 23.8% were Cx poicilipes (Theobald). The species of the Cx. neavei group were mainly collected by the pigeon-baited trap at canopy while Cx. poicilipes was captured similarly by pigeons and chickens placed at the canopy and ground. The implication of these results in West Nile vectors surveillance is discussed.

译文

:在塞内加尔萨赫勒地区(西非)的Barkedji地区,研究了2006年雨季(9月27日至11月26日)期间用鸟饵诱捕器和收集高度对潜在的西尼罗河蚊媒进行采样的过程。每天晚上,在地面上设置两个陷阱,在树冠层(大约3 m)上设置两个陷阱,每个陷阱包含一只鸡或一只鸽子,然后在第二天晚上旋转陷阱。使用66个诱捕器之夜,共收集了1,030个蚊子。淡色库蚊种占主导地位,占动物区系的92.2%,其中63%属于Cx。 neavei组Theobald,而23.8%是Cx poicilipes(Theobald)。 Cx的种类。 neavei组主要是由Cx的鸽系诱捕器收集的。安置在冠层和地面上的鸽子和小鸡也类似地捕获到了鹅胆素。讨论了这些结果在西尼罗河病媒监测中的意义。

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