Modeling the potential global distribution of the Egyptian cotton leafworm, Spodoptera littoralis under climate change

Abstract The Egyptian cotton leafworm, Spodoptera littoralis is a highly invasive insect pest that causes extensive damage to many of the primary food crops. Considering the recent challenges facing global food production including climate change, knowledge about the invasive potential of this pest...

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Main Authors: Sara M. ElShahed, Zahia K. Mostafa, Marwa H. Radwan, Eslam M. Hosni
Format: Article
Language:English
Published: Nature Portfolio 2023-10-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-023-44441-8
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author Sara M. ElShahed
Zahia K. Mostafa
Marwa H. Radwan
Eslam M. Hosni
author_facet Sara M. ElShahed
Zahia K. Mostafa
Marwa H. Radwan
Eslam M. Hosni
author_sort Sara M. ElShahed
collection DOAJ
description Abstract The Egyptian cotton leafworm, Spodoptera littoralis is a highly invasive insect pest that causes extensive damage to many of the primary food crops. Considering the recent challenges facing global food production including climate change, knowledge about the invasive potential of this pest is essential. In this study, the maximum entropy model (MaxEnt) was used to predict the current global spatial distribution of the pest and the future distribution using two representative concentration pathways (RCPs) 2.6 and 8.5 in 2050 and 2070. High AUC and TSS values indicated model accuracy and high performance. Response curves showed that the optimal temperature for the S. littoralis is between 10 and 28 °C. The pest is currently found in Africa and is widely distributed across the Middle East and throughout Southern Europe. MaxEnt results revealed that the insect will shift towards Northern Europe and the Americas. Further, China was seen to have a suitable climate. We also extrapolated the impact of these results on major producing countries and how this affects trade flow, which help decision makers to take the invasiveness of such destructive pest into their account.
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spelling doaj.art-35aa4a81a31048848fff0a5ae28aabf62023-11-26T12:50:44ZengNature PortfolioScientific Reports2045-23222023-10-0113111010.1038/s41598-023-44441-8Modeling the potential global distribution of the Egyptian cotton leafworm, Spodoptera littoralis under climate changeSara M. ElShahed0Zahia K. Mostafa1Marwa H. Radwan2Eslam M. Hosni3Department of Entomology, Faculty of Science, Ain Shams UniversityDepartment of Entomology, Faculty of Science, Ain Shams UniversityDepartment of Entomology, Faculty of Science, Ain Shams UniversityDepartment of Entomology, Faculty of Science, Ain Shams UniversityAbstract The Egyptian cotton leafworm, Spodoptera littoralis is a highly invasive insect pest that causes extensive damage to many of the primary food crops. Considering the recent challenges facing global food production including climate change, knowledge about the invasive potential of this pest is essential. In this study, the maximum entropy model (MaxEnt) was used to predict the current global spatial distribution of the pest and the future distribution using two representative concentration pathways (RCPs) 2.6 and 8.5 in 2050 and 2070. High AUC and TSS values indicated model accuracy and high performance. Response curves showed that the optimal temperature for the S. littoralis is between 10 and 28 °C. The pest is currently found in Africa and is widely distributed across the Middle East and throughout Southern Europe. MaxEnt results revealed that the insect will shift towards Northern Europe and the Americas. Further, China was seen to have a suitable climate. We also extrapolated the impact of these results on major producing countries and how this affects trade flow, which help decision makers to take the invasiveness of such destructive pest into their account.https://doi.org/10.1038/s41598-023-44441-8
spellingShingle Sara M. ElShahed
Zahia K. Mostafa
Marwa H. Radwan
Eslam M. Hosni
Modeling the potential global distribution of the Egyptian cotton leafworm, Spodoptera littoralis under climate change
Scientific Reports
title Modeling the potential global distribution of the Egyptian cotton leafworm, Spodoptera littoralis under climate change
title_full Modeling the potential global distribution of the Egyptian cotton leafworm, Spodoptera littoralis under climate change
title_fullStr Modeling the potential global distribution of the Egyptian cotton leafworm, Spodoptera littoralis under climate change
title_full_unstemmed Modeling the potential global distribution of the Egyptian cotton leafworm, Spodoptera littoralis under climate change
title_short Modeling the potential global distribution of the Egyptian cotton leafworm, Spodoptera littoralis under climate change
title_sort modeling the potential global distribution of the egyptian cotton leafworm spodoptera littoralis under climate change
url https://doi.org/10.1038/s41598-023-44441-8
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