The influence of ecological factors on mosquito abundance and occurrence in Galapagos
The influence of ecological factors on mosquito abundance and occurrence in Galapagos
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DOI：
10.1111/jvec.12292
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发表时间：
2018-06-01
影响因子：
1.7
通讯作者：
Parker, Patricia G.
中科院分区：
文献类型：
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作者：
Asigau, Samoa;Parker, Patricia G.
我们在加拉帕戈斯的圣克鲁斯岛从北到南的18个不同海拔的地点对蚊子进行了采样。两个常见的物种，Ae。taeniorhynchus和Cx. quinquefasciatus，收集沿着与诱捕地点的环境变量特征，以评估其对2015年旱季蚊子丰度和发生的影响。我们抓住了爱在18个位点中，有14个位点出现带喙龙;在圣克鲁斯的低海拔和高海拔地区的quinquefasciatus。我们利用两个广义线性模型，第一个评估的影响，环境变量的Ae丰度。taeniorhynchus和第二个评估的影响，这些变量的存在Cx。致倦肌这两种蚊子的种群数量随着海拔的升高而下降。降雨量数据有限，因为我们在2015年旱季进行了采样。距红树林的距离和最大湿度对Ae的丰度有显著影响。taeniorhynchus，而最大湿度被发现显着影响Cx的存在。致倦肌这两个物种都发生在温度，降水和湿度应该允许蚊子发育以及引起禽疟疾的原生动物寄生虫寄生发育的地点。需要进一步开展研究，包括全年对蚊子进行采样，收集相应的气象数据，并对病媒能力进行实验研究，以了解加拉帕戈斯的禽疟疾等寄生虫的疾病动态。
We sampled mosquitoes across 18 sites established at different elevations and stretching from the north to the south of Isla Santa Cruz, Galapagos. Two commonly occurring species, Ae. taeniorhynchus and Cx. quinquefasciatus, were collected along with environmental variables characteristic of the trapping sites to assess their influence on mosquito abundance and occurrence in the dry season of 2015. We captured Ae. taeniorhynchus at 14 out of 18 sites and Cx. quinquefasciatus at low and high elevation sites on Santa Cruz. We utilized two generalized linear models; the first assessed the influence of environmental variables on abundances of Ae. taeniorhynchus and the second assessed the influence of these variables on the presence of Cx. quinquefasciatus. Populations of both mosquito species declined with elevation. Rainfall data were limited, as we sampled during the dry season of 2015. Distance to mangroves and maximum humidity were significant in influencing the abundance of Ae. taeniorhynchus, while maximum humidity was found to significantly influence the presence of Cx. quinquefasciatus. Both species occurred in sites where temperature, precipitation, and humidity should allow for mosquito development as well as parasitic development of the protozoan parasites that cause avian malaria. Further research involving year-round sampling of mosquitoes and accompanying meteorological data as well as experimental studies on vector competence are required to understand disease dynamics of parasites such as avian malaria in Galapagos.