The fall Armyworm (FAW) Spodoptera frugiperda (JE Smith), is currently a devastating pest throughout the world due to its dispersal capacity and voracious feeding behaviour on several crops. A MaxEnt species distributions model (SDM) was developed based on collected FAW occurrence and environmental data’s. Bioclimatic zones were identified and the potential distribution of FAW in South Kivu, eastern DR Congo, was predicted. Mean annual temperature (bio1), annual rainfall (bio12), temperature seasonality (bio4) and longest dry season duration (llds) mainly affected the FAW potential distribution. The average area under the curve value of the model was 0.827 demonstrating the model efficient accuracy. According to Jackknife test of variable importance, the annual rainfall was found to correspond to the highest gain when used in isolation. FAWs’ suitable areas where this pest is likely to be present in South Kivu province are divided into two corridors. The Eastern corridor covering the Eastern areas of Kalehe, Kabare, Walungu, Uvira and Fizi territories and the Western corridor covering the Western areas of Kalehe, Kabare, Walungu and Mwenga. This research provides important information on the distribution of FAW and bioclimatic zones in South Kivu. Given the rapid spread of the insect and the climatic variability observed in the region that favor its development and dispersal, it would be planned in the future to develop a monitoring system and effective management strategies to limit it spread and crop damage.

中文翻译：

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刚果民主共和国南基伍省草地贪夜蛾（鳞翅目：夜蛾科）的生物气候区带和潜在分布


秋粘虫 (FAW) 草地贪夜蛾 (JE Smith) 由于其传播能力和对多种作物的贪婪取食行为，目前是世界各地的毁灭性害虫。 MaxEnt 物种分布模型 (SDM) 是根据收集的秋粘虫发生和环境数据开发的。确定了生物气候区，并预测了秋粘虫在刚果民主共和国东部南基伍省的潜在分布。年平均气温(bio1)、年降雨量(bio12)、温度季节性(bio4)和最长旱季持续时间(llds)主要影响秋粘虫潜在分布。模型的平均曲线下面积值为 0.827，证明了模型的高效准确性。根据不同重要性的折刀测试，发现年降雨量与孤立使用时的最高增益相对应。南基伍省秋粘虫可能出现的适宜区域分为两个走廊。东部走廊覆盖卡莱赫、卡巴雷、瓦伦古、乌维拉和菲齐地区东部地区，西部走廊覆盖卡莱赫、卡巴雷、瓦伦古和姆文加西部地区。这项研究提供了有关南基伍秋粘虫分布和生物气候区的重要信息。鉴于该昆虫的迅速传播以及该地区观察到的有利于其发展和扩散的气候变化，未来计划开发一个监测系统和有效的管理策略，以限制其传播和作物损害。