精品文档---下载后可任意编辑CO2 浓度和固氮菌对斜纹夜蛾幼虫及其寄生蜂生活史特征的影响的开题报告摘要：斜纹夜蛾是一种严重危害森林和果园的害虫，在全球气候变化的背景下其生态适应能力和天敌关系可能会发生变化。本讨论旨在探究 CO2浓度和固氮菌对斜纹夜蛾幼虫及其寄生蜂生活史特征的影响，并揭示其可能的机制。实验结果表明，高 CO2 浓度和固氮菌对斜纹夜蛾的幼虫存活率和生长速度均有显著影响，但对寄生蜂的寄生率和繁殖能力影响不大。此外，高 CO2 浓度和固氮菌也显著影响斜纹夜蛾幼虫对各种植物的取食和选择行为，进一步影响其与植物互动关系。这些结果表明斜纹夜蛾的生物学响应和危害程度可能受到全球气候变化和农业生态系统管理的影响。关键词：斜纹夜蛾；CO2 浓度；固氮菌；生活史特征；互作关系。Abstract：The fall armyworm is a serious pest that causes great damage to forests and orchards. Under the background of global climate change, its ecological adaptation ability and predator-prey relationship may change. This study aims to explore the effects of CO2 concentration and nitrogen-fixing bacteria on the life history characteristics of fall armyworm larvae and their parasitoid wasps, and to reveal possible mechanisms. The experimental results show that high CO2 concentration and nitrogen-fixing bacteria have significant effects on the survival rate and growth rate of fall armyworm larvae, but have little effect on the parasitism rate and reproductive capacity of parasitoid wasps. In addition, high CO2 concentration and nitrogen-fixing bacteria also significantly affect the feeding and selection behavior of fall armyworm larvae on various plants, further affecting their interaction with plants. These results suggest that the biological response and damage degree of fall armyworm may be affected by global climate change and agricultural ecosystem management.Keywords: fall armyworm; CO2 concentration; nitrogen-fixing bacteria; life history characteristics; interaction relationship.
