Effects of brief exposure to high temperatures on the survival and fecundity of Athetis lepigone (Lepidoptera: Noctuidae)

文献类型： 外文期刊

第一作者： Liang, Feifei

作者： Liang, Feifei;Wang, Zhenying;He, Kanglai;Bai, Shuxiong;Zhang, Tiantao

作者机构：

关键词： Athetis lepigone; Brief high temperature; Survival; Fecundity

期刊名称：JOURNAL OF THERMAL BIOLOGY （ 影响因子：2.902； 五年影响因子：3.102 ）

ISSN： 0306-4565

年卷期： 2021 年 100 卷

页码：

收录情况： SCI

摘要： In Huang-Huai-Hai Summer Corn Region of China, brief periods of high summer temperatures have been reported with increasing frequency in recent years. Athetis lepigone is a cosmopolitan insect which causes severe damage on summer corn seedlings. To understand how high summer temperatures may affect the population dynamics of A. lepigone, we exposed different developmental stages (1, 2 and 4-day old eggs; 1, 6, 12 and 18-day old larvae; 1, 3 and 6-day old pupae; and 1 and 2-day old female and male adults) to 41 degrees C for periods of various length (0.5, 1, 2, 4 and 6 h): The rearing temperature (constant 26 degrees C) was used as control. After heat treatment, all individuals were transferred to a 26 degrees C climate chamber for further development. The effects on immediate survival, maturation success to adulthood, and female fecundity were studied. Eggs, young larvae, late pupae and newly emerged adults had relatively higher immediate survival rates than the other experimental groups. Heat treatment at the egg and larval stages had no impact on development to adulthood and on female fecundity, while it significantly reduced the survival rate of larvae but not of eggs. Brief exposure to high temperature during the early pupal stage and as adults depressed female fecundity whereas exposure during the late pupal stage had no effect.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序