Effect of short-term high temperature stress on the development and fecundity of Ophraella communa (Coleoptera: Chrysomelidae)
文献类型: 外文期刊
第一作者: Guo, Jian-Ying
作者: Guo, Jian-Ying;Min, Luo;Wan, Fang-Hao;Min, Luo
作者机构:
关键词: Ophraella communa;short-term high temperature stress;development;fecundity;Ambrosia artemisiifolia;population expansion
期刊名称:BIOCONTROL SCIENCE AND TECHNOLOGY ( 影响因子:1.665; 五年影响因子:1.616 )
ISSN: 0958-3157
年卷期: 2011 年 21 卷 7 期
页码:
收录情况: SCI
摘要: Since insects are ectothermic, they are highly vulnerable to the sudden increase of temperature. Indeed, it has been hypothesized that the survival, development, fecundity, and even population expansion of insects are all affected significantly by extremely high temperature. We studied the effect of short-term high temperature stress on the survival and development of different stages, adult longevity and fecundity of Ophraella communa (Coleoptera: Chrysomelidae), a biological control agent of the invasive plant, the common ragweed, Ambrosia artemisiifolia (Asterales: Asteraceae) in the laboratory. The results showed that egg, larval, pupal, and adult survival rates were significantly affected after 2-h short-stress at high temperatures (35 to 47 degrees C) when compared to the 28 degrees C control. With the exceptions of the control and 35 degrees C stress, survival rate of females was significantly higher than that of males after short-stress at any high temperature. Short-term high temperature stress also significantly impacted longevity and fecundity of adult beetles. Except for control, female longevity was significantly longer than male's after short-stress at any high temperature. The survival rates of different stages, and adult longevity and fecundity of the beetle decreased significantly with the increase of short-term stress temperature. Based on the results of the present study, we conclude that the development and population expansion of O. communa may be significantly affected when they are exposed to a high temperature stage in a summer day in the areas invaded by common ragweed, in southern China.
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