Silva Shayenne Olsson Freitas, de Mello Cecilia Ferreira, Campos Juan Augusto Rodrigues Dos, Leite Paulo José, Sabino Rebeca, Alencar Jeronimo
Diptera Laboratory, Oswaldo Cruz Institute (FIOCRUZ), Av. Brazil 4365, Manguinhos, Rio de Janeiro 21040-360, Brazil.
Graduate Program in Tropical Medicine, Oswaldo Cruz Institute (FIOCRUZ), Av. Brazil 4365, Manguinhos, Rio de Janeiro 21040-360, Brazil.
Life (Basel). 2022 Oct 13;12(10):1597. doi: 10.3390/life12101597.
Arbovirus infections, such as dengue, zika, chikungunya, and yellow fever, are a major public health problem worldwide. As the main vectors, mosquitoes have been classified by the Center for Disease Control and Prevention as one of the deadliest animals alive. In this ecological study, we analyzed the population dynamics of important genera and species of mosquito vectors. Mosquito immatures were collected using ovitraps and at natural breeding sites: bamboos and bromeliads. Adult mosquitoes were captured using CDC traps with CO, Shannon traps, and manual suction tubes. Collections took place during the rainy and dry seasons from 2019 to 2020 in the Serra dos Órgãos National Park, Rio de Janeiro state, Brazil. The highest number of species was recorded in the ovitraps, followed by CDC and bromeliads. The breeding site with the lowest diversity was bamboo, though it showed the highest level of evenness compared to the other breeding sites. The medically important genera reported were spp., spp., spp., and spp. Culicid eggs increased in the rainy season, with a peak in November 2019 and January and February 2020, and lower abundance in the dry season, from September to October 2019. Mosquito eggs had a strong positive correlation (ρ = 0.755) with temperature and a moderate positive correlation (ρ = 0.625) with rainfall. This study shows how environmental variables can influence the ecology of disease-vector mosquitoes, which are critical in the maintenance of arbovirus circulation in a threatened biome within the most densely populated region of Brazil.
虫媒病毒感染，如登革热、寨卡病毒病、基孔肯雅热和黄热病，是全球主要的公共卫生问题。作为主要病媒，蚊子已被美国疾病控制与预防中心列为现存最致命的动物之一。在这项生态学研究中，我们分析了重要蚊媒属和种类的种群动态。使用诱蚊产卵器以及在天然孳生地（竹子和凤梨科植物）采集蚊幼虫。使用带二氧化碳的疾控中心诱捕器、香农诱捕器和手动吸管捕获成蚊。于2019年至2020年的雨季和旱季在巴西里约热内卢州的塞尔拉多斯奥尔冈斯国家公园进行采集。诱蚊产卵器中记录的物种数量最多，其次是疾控中心诱捕器和凤梨科植物。多样性最低的孳生地是竹子，不过与其他孳生地相比，它的均匀度最高。报告的医学上重要的属有 属、 属、 属和 属。库蚊属的卵在雨季增加，在2019年11月以及2020年1月和2月达到峰值，而在2019年9月至10月的旱季丰度较低。蚊卵与温度呈强正相关（ρ = 0.755），与降雨量呈中度正相关（ρ = 0.625）。这项研究表明环境变量如何影响病媒蚊子的生态，而病媒蚊子对于在巴西人口最密集地区的一个受到威胁的生物群落中维持虫媒病毒传播至关重要。
