Chinese scientists have found that climate change is changing the dominant species of wheat aphids.

A few days ago, a team led by Ma Chunsen, a researcher at the Institute of Plant Protection of the Chinese Academy of Agricultural Sciences, found that climate change broke the original balance of agricultural pest communities and changed the relative dominance among species of agricultural pest communities. so that the succession of dominant species. It can be said that climate change is changing the dominant species of agricultural pest communities. The research is published in the latest issue of the internationally renowned journal Global change Biology.

In order to clarify the relationship between climate change and the relative dominance and community structure of agricultural pest community, Ma Chunsen's team studied three kinds of wheat aphids: APHIS gossypii, APHIS gossypii and APHIS gossypii as the model system. The team found that extreme high temperature events changed the relative dominance and community structure of three species of wheat aphids. Because the damage sites and economic losses of the three kinds of wheat aphids are obviously different, there are also significant differences in the types and efficiency of transmission of wheat crop virus diseases. it will affect the virus infection rate of wheat crops and the occurrence and prevalence of the disease, and then affect the prediction of disease occurrence and the formulation of prevention and control strategies. In addition, wheat aphid is in the intermediate nutrient level of wheat field ecosystem, and the change of its community structure will also affect the "crop-wheat aphid-natural enemy" system.

It is reported that the results of this study have important application value in predicting the impact of climate change on pests and their communities.