• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The American Journal of Tropical Medicine and Hygiene >Larval habitat dynamics and diversity of Culex mosquitoes in rice agro-ecosystem in Mwea, Kenya.
【24h】

Larval habitat dynamics and diversity of Culex mosquitoes in rice agro-ecosystem in Mwea, Kenya.

机译：肯尼亚Mwea水稻农业生态系统中幼虫栖息地动态和库蚊的多样性。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Introduction of irrigation projects in developing nations has often been blamed for aggravating the problem of mosquito-borne diseases by creating ideal larval habitats for vector mosquitoes. However, whereas several studies have demonstrated the relationship between malaria vectors and irrigation, little work has been done on culicine mosquitoes despite their potential in transmission of filariasis and arboviruses and their significant biting nuisance in these areas. This study examined the diversity of Culex mosquito fauna and their larval habitats at two sites (Murinduko and Kiamachiri) in Mwea, Kenya over a 12-month period. The habitat types present at each site within a 200-meter radius around the study village, including randomly selected paddies and canals, were sampled every two weeks to examine the relationship between vegetation cover, water depth, turbidity, and Culex larval counts. Ten culicine species belonging to four genera were identified, with 73.1% of the total collection comprising of Culex duttoni and Cx. quinquefasciatus. Other species collected included Cx. annulioris, Cx. poicilipes, Cx. cinereus, Cx. tigripes, Cx. trifilatus, Aedes spp., Coquilettidia fuscopennata, and Ficalbia splendens. Murinduko was more diverse than Kiamachiri in terms of species richness (10 versus 7 species) and larval habitat diversity (11 versus 8 habitat types). Paddies, canals, and rain pools were the most diverse habitats in terms of species richness, and ditches, rock pools, and tree holes were the least diverse. Principal component and correlation analyses showed a strong association between three Culex species and the measured habitat characteristics. Culex poicilipes was strongly associated with floating vegetation, Cx. annulioris with clean water containing emergent vegetation, and Cx. quinquefasciatus was associated with turbid water. Seasonal changes in larval counts in water reservoirs and pool and ditch habitats were closely associated with rainfall. These findings provide important information on larval habitat preference for different Culex species, which will be useful in designing and implementation of larval control operations.
机译：人们常常指责发展中国家引入灌溉项目，因为它们为媒介蚊子创造了理想的幼虫栖息地，从而加剧了蚊子传播的疾病问题。然而，尽管一些研究证明了疟疾传播媒介与灌溉之间的关系，但是尽管库蚊有传播丝虫病和虫媒病毒的潜能，并且在这些地区造成严重的滋扰，但对库蚊的研究却很少。这项研究调查了肯尼亚Mwea的两个地点（Murinduko和Kiamachiri）在12个月内的库蚊蚊动物的多样性及其幼虫的栖息地。每两周对研究村庄周围200米半径内每个地点的栖息地类型（包括随机选择的稻田和运河）进行采样，以检查植被覆盖度，水深，浊度和库蚊幼虫数量之间的关系。鉴定出属于四个属的十种库里奇菌种，占总库蚊的73.1％，包括杜鹃花和Cx。 quinquefasciatus。收集的其他物种包括Cx。 Annulioris，Cx。 poicilipes，Cx。 cinereus，Cx。 tigripes，Cx。 trifilatus，伊蚊，Coquilettidia fuscopennata和Ficalbia splendens。在物种丰富度（10种对7种）和幼虫栖息地多样性（11种对8种栖息地类型）方面，Murinduko比起亚马卡里里更具多样性。就物种丰富度而言，稻田，运河和雨水池是最多样化的栖息地，沟渠，岩池和树洞的多样性最少。主成分和相关性分析表明，三种库蚊物种与测得的栖息地特征之间有很强的联系。淡色库蚊与漂浮的植被Cx密切相关。用含有新生植被的清洁水和Cx。 quinquefasciatus与浑浊的水有关。水库，水池和沟渠生境中幼虫数量的季节性变化与降雨密切相关。这些发现提供了关于不同库蚊物种对幼虫栖息地偏好的重要信息，这将对设计和实施幼虫控制操作很有用。

著录项

相似文献

  • 外文文献
  • 中文文献
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号