Wen Fu, Lu Longhui, Nie Chaojia, Sun Zhongxiang, Liu Ronghao, Huang Wenjiang, Ye Huichun
College of Water Resources Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China.
International Research Center of Big Data for Sustainable Development Goals, Beijing 100094, China.
Insects. 2023 May 24;14(6):492. doi: 10.3390/insects14060492.
is a major grasshopper species that harms the development of agriculture on the Mongolian Plateau. Therefore, it is important to enhance the monitoring of . In this study, the spatiotemporal variation in the habitat suitability for on the Mongolian Plateau was assessed using maximum entropy (Maxent) modeling along with multi-source remote sensing data (meteorology, vegetation, soil, and topography). The predictions of the Maxent model were accurate (AUC = 0.910). The key environmental variables affecting the distribution of grasshoppers and their contribution were grass type (51.3%), accumulated precipitation (24.9%), altitude (13.0%), vegetation coverage (6.6%), and land surface temperature (4.2%). Based on the assessment results of suitability by Maxent model, the model threshold settings, and the formula for calculating the inhabitability index, the 2000s, 2010s, and 2020s inhabitable areas were calculated. The results show that the distribution of suitable habitat for in 2000 was similar to that in 2010. From 2010 to 2020, the suitability of the habitat for in the central region of the Mongolian Plateau changed from moderate to high. The main factor contributing to this change was accumulated precipitation. Few changes in the areas of the habitat with low suitability were observed across the study period. The results of this study enhance our understanding of the vulnerability of different regions on the Mongolian Plateau to plagues of and will aid the monitoring of grasshopper plagues in this region.
是一种对蒙古高原农业发展有害的主要蝗虫种类。因此,加强对其的监测很重要。在本研究中,利用最大熵(Maxent)模型结合多源遥感数据(气象、植被、土壤和地形)评估了蒙古高原上该蝗虫栖息地适宜性的时空变化。Maxent模型的预测准确(AUC = 0.910)。影响蝗虫分布的关键环境变量及其贡献率分别为草类型(51.3%)、累积降水量(24.9%)、海拔(13.0%)、植被覆盖度(6.6%)和地表温度(4.2%)。基于Maxent模型的适宜性评估结果、模型阈值设置以及可居住性指数计算方法,计算了21世纪初、21世纪10年代和21世纪20年代的可居住面积。结果表明,2000年该蝗虫适宜栖息地的分布与2010年相似。2010年至2020年,蒙古高原中部地区该蝗虫栖息地适宜性从中等变为高适宜。造成这种变化的主要因素是累积降水量。在整个研究期间,低适宜性栖息地面积变化不大。本研究结果增进了我们对蒙古高原不同地区易受该蝗虫灾害影响程度的理解,并将有助于该地区蝗虫灾害的监测。