Bioclimatic zonation and potential distribution of Spodoptera frugiperda (Lepidoptera: Noctuidae) in South Kivu Province, DR Congo.

IF 2.2 2区 环境科学与生态学 Q1 Agricultural and Biological Sciences
Marcellin C Cokola, Yannick Mugumaarhahama, Grégoire Noël, Espoir B Bisimwa, David M Bugeme, Géant B Chuma, Adrien B Ndeko, Frédéric Francis
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Abstract

Background: 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.

Results: 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.

Conclusions: 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.

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Abstract Image

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刚果民主共和国南基伍省 Spodoptera frugiperda(鳞翅目:夜蛾科)的生物气候区划和潜在分布。
背景:秋陆虫(FAW)Spodoptera frugiperda (JE Smith),由于其传播能力和对几种作物的贪婪取食行为,目前在全世界都是一种毁灭性害虫。根据收集到的FAW发生和环境数据,开发了一个MaxEnt物种分布模型(SDM)。确定了生物气候区,并预测了草翅虫在刚果民主共和国东部南基伍省的潜在分布:结果: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)是影响草翅虫潜在分布的主要因素。模型的平均曲线下面积值为 0.827,表明模型的准确性较高。根据变量重要性的积刀检验,发现年降雨量单独使用时对应的增益最高。南基伍省可能出现 FAWs 害虫的适宜地区分为两个走廊。东部走廊包括卡莱亥(Kalehe)、卡巴雷(Kabare)、瓦伦古(Walungu)、乌维拉(Uvira)和菲齐(Fizi)等东部地区,西部走廊包括卡莱亥(Kalehe)、卡巴雷(Kabare)、瓦伦古(Walungu)和姆文加(Mwenga)等西部地区:这项研究提供了有关南基伍省非洲虫害分布和生物气候区的重要信息。鉴于该昆虫的快速传播以及在该地区观察到的有利于其发展和传播的气候多变性,未来将计划开发一套监测系统和有效的管理策略,以限制其传播和对作物的损害。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
BMC Ecology
BMC Ecology ECOLOGY-
CiteScore
5.80
自引率
4.50%
发文量
0
审稿时长
22 weeks
期刊介绍: BMC Ecology is an open access, peer-reviewed journal that considers articles on environmental, behavioral and population ecology as well as biodiversity of plants, animals and microbes.
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