Exposing eggs to high temperatures affects the development, survival and reproduction of Harmonia axyridis
Exposing eggs to high temperatures affects the development, survival and reproduction of Harmonia axyridis
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DOI：
10.1016/j.jtherbio.2013.11.007
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发表时间：
2014
影响因子：
2.7
通讯作者：
Shi-Ze Zhang;Z. Cao;Qiao-lin Wang;Fan Zhang;Tong‐Xian Liu
中科院分区：
文献类型：
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作者：
Shi-Ze Zhang;Z. Cao;Qiao-lin Wang;Fan Zhang;Tong‐Xian Liu
异色瓢虫（Harmonia axyridis）（Pallas）（鞘翅目：瓢虫科）是一种常见的蚜虫和软体昆虫的生物防治剂。本文研究了红腹锦鸡儿的发育、存活和繁殖特性。将其卵暴露于25（对照）、37、39和41 °C下1小时，然后转移到环境条件（25 °C）下，不同温度处理对孵化成功率的影响差异很大。没有异色幼虫在41 °C孵化。本文报道了中华绒螯蟹的发育、存活、体重、繁殖和寿命。异色性在温度处理和性别上存在显著差异。随着温度的升高，幼鱼存活率下降，而雌雄成虫鲜重均显著增加。卵的热暴露导致随后的寿命，产卵期和繁殖减少，而产卵前期随着温度的升高而变长。这可能意味着在较高水平的压力环境中，生殖投资增加，成年个体的反应可能与生活史早期阶段的经历有关。我们的研究结果为预测种群动态和了解H的潜力提供了有用的信息。异色性不育症是一种在多变环境下的生物防治剂。
The multicolored Asian lady beetle,Harmonia axyridis(Pallas) (Coleoptera: Coccinellidae), is a well-known biological control agent for aphids and soft-bodied insects. We investigated the developmental, survival and reproductive traits ofH. axyridiswhen its eggs were exposed to 25 (control), 37, 39 and 41 °C for 1 h, and then transferred to ambient condition (25 °C). The effects of heat stress on the hatching success greatly differed among temperature treatments. NoH. axyridislarvae hatched out at 41 °C. The development, survival, weight, reproduction and longevity ofH. axyridisexhibited significant differences with temperature treatment and gender. The survival rate of immatures declined, while the adult fresh weight of both sexes markedly increased with the increase of temperature. Heat exposure of the eggs caused a subsequent reduction in longevity, oviposition period and reproduction, while the pre-oviposition period became longer as the temperature increased. These may imply that the reproductive investment increased in higher level stressful environments, and the response of adult individuals could be linked to the experiences from early stages of the life history. Our findings provide useful information for predicting population dynamics and understanding the potential forH. axyridisas a biological control agent under variable environments.