Department of Biological Sciences, University of Cincinnati, Cincinnati, Ohio, USA.
Department of Biochemistry, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA.
Med Vet Entomol. 2024 Dec;38(4):482-494. doi: 10.1111/mve.12747. Epub 2024 Sep 19.
Aedes aegypti is an important mosquito vector of human disease with a wide distribution across the globe. Climatic conditions and ecological pressure drive differences in the biology of several populations of this mosquito species, including blood-feeding behaviour and vector competence. However, no study has compared activity and/or sleep among different populations/lineages of Ae. aegypti. Having recently established sleep-like states in three mosquito species with observable differences in timing and amount of sleep among species, we investigated differences in activity and sleep levels among 17 Ae. aegypti lines drawn from both its native range in Africa and its invasive range across the global tropics. Activity monitoring indicates that all the lines show consistent diurnal activity, but significant differences in activity level, sleep amount, number of sleep bouts and bout duration were observed among the lines. The variation in day activity was associated with differences in host preference and ancestry for the lineages collected in Africa. This study provides evidence that the diurnal sleep and activity profiles for Ae. aegypti are consistent, but there are significant population differences for Ae. aegypti sleep and activity levels and interactions with host species may significantly impact mosquito activity.
埃及伊蚊是一种重要的人类疾病病媒蚊，分布范围广泛。气候条件和生态压力导致该蚊种的几个种群在生物学上存在差异，包括吸血行为和媒介效能。然而，尚无研究比较不同种群/谱系的埃及伊蚊的活动和/或睡眠。我们最近在三种具有可见物种间睡眠时间和量差异的蚊子物种中建立了类似睡眠的状态，因此我们调查了来自非洲本地范围和全球热带入侵范围的 17 条埃及伊蚊系之间的活动和睡眠水平差异。活动监测表明，所有系都表现出一致的昼间活动，但在系之间观察到活动水平、睡眠时间、睡眠次数和小睡持续时间的显著差异。日间活动的变化与在非洲收集的谱系的宿主偏好和祖先差异有关。这项研究提供了证据表明，埃及伊蚊的昼夜睡眠和活动模式是一致的，但埃及伊蚊的睡眠和活动水平存在显著的种群差异，与宿主物种的相互作用可能会显著影响蚊子的活动。
