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Larval habitats of mosquito fauna in Osogbo metropolis, Southwestern Nigeria

机译:尼日利亚西南部奥索博都会的蚊子动物的幼虫栖息地

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Objective:To determine the larval habitats of mosquito fauna and possible impact of land use/land cover changes on the epidemiology of mosquito-borne diseases in Osogbo metropolis, Southwestern, Nigeria. Methods: All accessible larval habitats were surveyed between May and September, 2011 in Osogbo metropolis while Land Use/ Land cover of the city was analyzed using 2 Lansat Multispectral Scanner satellite imagery of SPOT 1986 and LANDSAT TM 2009. Results:A total of six species namely, Aedes aegypti, Aedes albopictus, Aedes vittatus, Anopheles gambiae complex, Culex quinquefasciatus and Eretmapodite chrysogaster were encountered during the study. The occurrence and contribution of disused tyres was significantly higher (P<0.05) than the other habitats encountered, while there were no significant differences in the contribution of gutters/run-offs, septic tanks/drums, ground pools/open drains and discarded containers to the breeding of mosquitoes (P>0.05). The accessible land use/land covered of the study area between 1986 and 2009 showed that the wet land coverage and settlement area increased from 0.19 to 9.09 hectare and 1.00 to 2.01 hectare respectively while the forest area decreased from 60.18 to 50.14 hectare. Conclusion: The contribution of the habitats coupled with the increasing rate of flooded environment which could provide ample breeding sites for mosquitoes call for sustained environmental sanitation and management in Osogbo metropolis.
机译:目的:确定尼日利亚西南部奥索博都会的蚊子动物的幼虫栖息地以及土地利用/土地覆盖变化对蚊媒疾病流行病学的影响。 方法:在2011年5月至2011年9月之间,对Osogbo大都会地区所有可触及的幼虫栖息地进行了调查,同时使用2张SPOT 1986年LANDSTM和LANDSAT TM 2009年的Lansat多光谱扫描仪卫星图像分析了该城市的土地利用/土地覆盖。结果:在研究过程中,总共发现了六个物种,即埃及伊蚊,白纹伊蚊,白纹伊蚊,冈比亚按蚊复合体,库克斯库克斯奎库斯藻和绿皮鸭科黄ite鱼。废弃轮胎的发生和贡献显着高于其他栖息地(P <0.05),而排水沟/径流,化粪池/桶,地面水池/明渠和废弃容器的贡献没有显着差异蚊子的繁殖(P> 0.05)。 1986年至2009年研究区域的可及土地利用/土地覆盖情况表明,湿地覆盖面积和定居面积分别从0.19公顷增加到9.09公顷,从1.00公顷增加到2.01公顷,而森林面积从60.18公顷减少到50.14公顷。 结论:栖息地的贡献以及洪水泛滥的速度不断增加,可能为蚊子提供充足的繁殖场所,这需要在Osogbo都市地区进行持续的环境卫生和管理。

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