Blood-meal preferences and avian malaria detection in mosquitoes (Diptera: Culicidae) captured at different land use types within a neotropical montane cloud forest matrix
Blood-meal preferences and avian malaria detection in mosquitoes (Diptera: Culicidae) captured at different land use types within a neotropical montane cloud forest matrix
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DOI：
10.1016/j.parint.2018.01.006
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发表时间：
2018-06-01
影响因子：
1.9
通讯作者：
Santiago-Alarcon, Diego
中科院分区：
文献类型：
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作者：
Antonio Abella-Medrano, Carlos;Ibanez-Bernal, Sergio;Santiago-Alarcon, Diego
人类活动改变了环境条件，改变了生态相互作用，这可能导致影响人类和野生动物种群的病媒病原体数量增加。有一个缺乏知识的蚊子喂养的喜好和他们的作用作为潜在的载体的血孢子虫寄生虫，特别是在修改栖息地。在2013-2014年期间，我们在云雾森林矩阵内的五种不同土地利用类型中对蚊子进行了采样。在总共4107只成年蚊子中，有90只是充血的。我们从七种不同种类的蚊子血粉、蚊子和蚊子胸中提取了DNA。17份标本为禽疟原虫阳性。我们能够确定10只蚊子的血餐来源，确定的脊椎动物物种是：智人（人），Sturnira hondurensis（蝙蝠）和Bos taurus（牛）。我们的研究结果表明，库蚊restuans是积极的禽疟疾，它是喂养人类和家畜在城市和城市围栏栖息地类型，在那里它也是一个丰富的物种全年。此外，四纹伊蚊也对禽疟疾呈阳性，在保存完好的云雾森林中以人类为食，这种蚊子物种在那里非常丰富。这项研究是第一次在墨西哥提供参考数据，显示通才蚊子喂养的偏好和存在的鸟类疟原虫在不同的土地利用类型的位置。
Human activities modify environmental conditions, altering ecological interactions that can contribute to the increasing number of vector-borne pathogens affecting both human and wildlife populations. There is a dearth of knowledge about mosquitoes feeding preferences and their role as potential vectors of haemosporidian parasites, particularly in modified habitats. During 2013-2014 we sampled mosquitoes in five different land use types within a cloud forest matrix. From a total of 4107 adult mosquitoes, 90 were engorged. We extracted DNA from mosquito blood-meals, abdomens, and thoraxes, which belonged to seven different species. Seventeen specimens were positive for avian Plasmodium parasites. We were able to identify the blood-meal source of 10 mosquitoes, the identified vertebrate species were: Homo sapiens (Human), Sturnira hondurensis (Bat), and Bos taurus (Cow). Our results show that Culex restuans is positive for avian malaria and it is feeding on both humans and domestic animals at urban and pen-urban habitat types, where it is also an abundant species throughout the year. Furthermore, Aedes quadrivittatus, also positive for avian malaria, is feeding on humans in the well-preserved cloud forest, where this mosquito species is highly abundant. This study is the first in Mexico to provide reference data showing generalist mosquito feeding preferences and presence of avian Plasmodium at locations with different land use types.