Eclosion rate, development and survivorship of Aedes albopictus (Skuse)(Diptera: Culicidae) under different water temperatures
Eclosion rate, development and survivorship of Aedes albopictus (Skuse)(Diptera: Culicidae) under different water temperatures
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DOI：
10.1590/s1519-566x2007000600021
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发表时间：
2007-12-01
影响因子：
1.8
通讯作者：
Albuquerque, Cleide M.R. de
中科院分区：
文献类型：
--
作者：
Monteiro, Laura C.C.;Souza, José R.B. de;Albuquerque, Cleide M.R. de
在媒介昆虫种群特别多的热带地区，温度通常在25摄氏度到35摄氏度之间。考虑到这种温度变化在确定蚊子种群动态中的重要性，在这项工作中，比较了恒定25、30和35摄氏度(使用驯化室内)和环境(25摄氏度到29摄氏度)温度下白纹伊蚊幼虫阶段的发育、羽化和存活率。孵化率以24小时后恢复的仔鱼总数为准。每天对其发育历期、幼虫存活率和幼虫存活率进行评估。环境温度下的羽化率显著高于所研究的恒温条件下的羽化率，表明温度变化可能是一种促羽化因子。平均羽化时间随温度升高而延长，变化范围为2.8h(25℃)至5.2h(35℃)。幼虫期在各组内差异很大，但组间差异不显著(11.0±4.19天)，在35摄氏度(12.0±4.95天)和环境温度(13.6±5.98天)条件下，个体在水中表现出较长的幼虫期。相反，更高的温度对存活的影响很大，只有一只个体存活到成虫阶段。结果表明，Ae.累西腓的白纹伊蚊可能正在适应环境温度的升高，幼虫发育的极限温度约为35摄氏度。
In tropical areas, where vector insects populations are particularly numerous, temperature usually range between 25 degrees C and 35 degrees C. Considering the importance of such temperature variation in determining mosquitoes population dynamics, in this work the developmental, eclosion and survival rates of the immature stages of Aedes albopictus (Skuse) were compared under constant 25, 30 and 35 degrees C (using acclimatized chambers) and environmental (25 degrees C to 29 degrees C) temperatures. The hatching rate was considered as total number of larvae recovered after 24h. The development period as well as larval and pupal survival rate were evaluated daily. Eclosion rate was significantly higher under environmental temperature than under the studied constant temperatures, suggesting that temperature variation may be an eclosion-stimulating factor. The mean eclosion time increased with the temperature, ranging from 2.8h (25 degrees C) to 5.2h (35 degrees C). The larval period was greatly variable inside each group, although it did not differ significantly amongst groups (11.0 +/- 4.19 days), with individuals showing longer larval stages in water at 35 degrees C (12.0 4.95 days) and environmental temperature (13.6 +/- 5.98 days). Oppositely, survival was strongly affected by the higher temperature, where only one individual lived through to adult phase. The results suggest that population of Ae. albopictus from Recife may be adapting to increasing of environmental temperatures and that the limiting temperature to larval development is around 35 degrees C.