Challenges facing entomologists in a changing global climate
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Key Words：global change, new challenges, insect, multitrophic interactions, elevated CO2, temperature
Abstract： Global climate change, such as elevated CO2 and O3 concentrations, rising temperature and the uneven distribution of rainfall has a profound impact on insect community composition and the interaction between host plants, and pest insects and their natural enemies. Insect responses to global climate change are frequently “species\|specific” and can be negative, positive or neutral. Global climate change has been associated with an increase in the number of pest insect outbreaks, a decline in some insect populations, and even the extinction of some insect species. This review examines the effects of climate change including those in temperature, rainfall and greenhouse gases (CO2, O3), on insects. There are still many challenges facing entomologists in predicting and monitoring the impacts of climate change on insects. Future research needs to focus on the response characteristics and adaptive mechanisms of insects, and developing new control methods for insect pests through long-term monitoring, control experiments and predictive modeling.