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Potential Distribution and Niche Differentiation of Spodoptera frugiperda in Africa

The fall armyworm, Spodoptera frugiperda (J.E. Smith) is a serious agricultural pest. The species originates from the tropical and subtropical regions of the Americas and has now become established in many countries. Its strong migratory ability is the key factor in the rapidly expanding range of S....

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Autores principales: Fan, Jingyu, Wu, Pengxiang, Tian, Tianqi, Ren, Qilin, Haseeb, Muhammad, Zhang, Runzhi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7349815/
https://www.ncbi.nlm.nih.gov/pubmed/32575878
http://dx.doi.org/10.3390/insects11060383
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author Fan, Jingyu
Wu, Pengxiang
Tian, Tianqi
Ren, Qilin
Haseeb, Muhammad
Zhang, Runzhi
author_facet Fan, Jingyu
Wu, Pengxiang
Tian, Tianqi
Ren, Qilin
Haseeb, Muhammad
Zhang, Runzhi
author_sort Fan, Jingyu
collection PubMed
description The fall armyworm, Spodoptera frugiperda (J.E. Smith) is a serious agricultural pest. The species originates from the tropical and subtropical regions of the Americas and has now become established in many countries. Its strong migratory ability is the key factor in the rapidly expanding range of S. frugiperda in Africa, where food security faces unprecedented challenges. Exploring potential distributions and niche differentiation of S. frugiperda could provide new insights into the nature of climate niche shifts and our ability to anticipate further invasions. In this study, the occurrence population records (native, source, global, and African) and environmental variables of S. frugiperda were selected to fit ecological niche models (ENMs), with an evaluation of niche conservatism during its invasion of Africa. The results showed that the potential distributions of S. frugiperda are mainly in tropical and subtropical areas in Africa. The climate spaces occupied by its native population and introduced African population broadly overlap. Although, climate niches were conserved during invasion of Africa, many climate spaces were unoccupied, suggesting a high remaining invasion potential in Africa. The selection of the biogeographic realm is an important factor in model construction, and has a great influence on the transferability of the models. Indeed, the global model produced the best performance, following the source and native models.
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spelling pubmed-73498152020-07-15 Potential Distribution and Niche Differentiation of Spodoptera frugiperda in Africa Fan, Jingyu Wu, Pengxiang Tian, Tianqi Ren, Qilin Haseeb, Muhammad Zhang, Runzhi Insects Article The fall armyworm, Spodoptera frugiperda (J.E. Smith) is a serious agricultural pest. The species originates from the tropical and subtropical regions of the Americas and has now become established in many countries. Its strong migratory ability is the key factor in the rapidly expanding range of S. frugiperda in Africa, where food security faces unprecedented challenges. Exploring potential distributions and niche differentiation of S. frugiperda could provide new insights into the nature of climate niche shifts and our ability to anticipate further invasions. In this study, the occurrence population records (native, source, global, and African) and environmental variables of S. frugiperda were selected to fit ecological niche models (ENMs), with an evaluation of niche conservatism during its invasion of Africa. The results showed that the potential distributions of S. frugiperda are mainly in tropical and subtropical areas in Africa. The climate spaces occupied by its native population and introduced African population broadly overlap. Although, climate niches were conserved during invasion of Africa, many climate spaces were unoccupied, suggesting a high remaining invasion potential in Africa. The selection of the biogeographic realm is an important factor in model construction, and has a great influence on the transferability of the models. Indeed, the global model produced the best performance, following the source and native models. MDPI 2020-06-21 /pmc/articles/PMC7349815/ /pubmed/32575878 http://dx.doi.org/10.3390/insects11060383 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Fan, Jingyu
Wu, Pengxiang
Tian, Tianqi
Ren, Qilin
Haseeb, Muhammad
Zhang, Runzhi
Potential Distribution and Niche Differentiation of Spodoptera frugiperda in Africa
title Potential Distribution and Niche Differentiation of Spodoptera frugiperda in Africa
title_full Potential Distribution and Niche Differentiation of Spodoptera frugiperda in Africa
title_fullStr Potential Distribution and Niche Differentiation of Spodoptera frugiperda in Africa
title_full_unstemmed Potential Distribution and Niche Differentiation of Spodoptera frugiperda in Africa
title_short Potential Distribution and Niche Differentiation of Spodoptera frugiperda in Africa
title_sort potential distribution and niche differentiation of spodoptera frugiperda in africa
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7349815/
https://www.ncbi.nlm.nih.gov/pubmed/32575878
http://dx.doi.org/10.3390/insects11060383
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