State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Kaifeng, 475004, China.
Key Laboratory of Geospatial Technology for the Middle and Lower Yellow River Regions (Henan University), Ministry of Education, Kaifeng, 475004, China.
Commun Biol. 2022 Jul 28;5(1):761. doi: 10.1038/s42003-022-03731-z.
Temperature has a large influence on insect abundances, thus under climate change, identifying major drivers affecting pest insect populations is critical to world food security and agricultural ecosystem health. Here, we conducted a meta-analysis with data obtained from 120 studies across China and Europe from 1970 to 2017 to reveal how climate and agricultural practices affect populations of wheat aphids. Here we showed that aphid loads on wheat had distinct patterns between these two regions, with a significant increase in China but a decrease in Europe over this time period. Although temperature increased over this period in both regions, we found no evidence showing climate warming affected aphid loads. Rather, differences in pesticide use, fertilization, land use, and natural enemies between China and Europe may be key factors accounting for differences in aphid pest populations. These long-term data suggest that agricultural practices impact wheat aphid loads more than climate warming.
温度对昆虫丰度有很大影响，因此在气候变化下，确定影响害虫种群的主要驱动因素对世界粮食安全和农业生态系统健康至关重要。在这里，我们进行了一项荟萃分析，该分析的数据来自 1970 年至 2017 年期间中国和欧洲的 120 项研究，以揭示气候和农业实践如何影响小麦蚜虫的种群。结果表明，在这两个地区，蚜虫对小麦的负荷模式明显不同，在此期间，中国的蚜虫负荷显著增加，而欧洲的蚜虫负荷则减少。尽管这两个地区的温度在此期间都有所上升，但我们没有证据表明气候变暖会影响蚜虫的负荷。相反，中国和欧洲在农药使用、施肥、土地利用和天敌方面的差异可能是造成蚜虫种群差异的关键因素。这些长期数据表明，农业实践对小麦蚜虫的影响大于气候变暖。
