大气CO_2浓度增加对昆虫的影响

Impacts of elevated CO_2 on insects

大气CO2浓度增加已经受到国内外的极大关注。CO2浓度升高不但影响植物的生长发育,而且还改变植物体内的化学成分的组成与含量,从而间接地影响到植食性昆虫,并进而通过食物链影响到以之为食的天敌。根据国内外研究进展,结合多年的研究,系统介绍了CO2浓度变化对植物-昆虫系统影响的研究方法,论述了CO2浓度变化对植食性昆虫、天敌的作用规律及作用机理,探讨了CO2浓度变化对植物-植食性昆虫系统影响的特征,分析了未来研究发展的趋势及其存在的问题。

Increasing concentrations of atmospheric CO2 are predicted to impact both current and future ecosystems, which have been greatly concerned by scientists. Elevated CO2 not only affects the growth and development of plants, but cause changes in the structure and contents of their chemical components that resulted in the changes of the growth and development of herbivore insects fed on plant. Moreover, natural enemies, which prey these herbivore insects, may also be impacted because of the effects of elevated CO2 on host plant and herbivore insects through food chains. In this overview, we reviewed the progress of research in impacts of elevated CO2 on insects, introduced the research methods of the effects of elevated CO2 on the plant-insect systems, generalized the regularity and mechanisms of elevated CO2 on herbivore insects and their natural enemies, explored the characteristics of the changes in atmospheric CO2 concentrations on the interactions between plants and herbivore insects, analyzed the existing issues in the research in the impacts of elevated C02 on insects, and listed critical areas of research about the impacts of elevated CO2 on insects in the future based on the domestic and foreign research reports.