A system dynamics model for pests and natural enemies interactions

Abstract Stemborers (Busseola fusca, Sesamia calamistis and Chilo partellus), the fall armyworm (Spodoptera frugiperda) and associated parasitoids constitute an interacting system in maize fields in Kenya. This work aims at developing and evaluating models that represent the evolution of those inter...

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Autores principales:	Bonoukpoè Mawuko Sokame, Henri E. Z. Tonnang, Sevgan Subramanian, Anani Y. Bruce, Thomas Dubois, Sunday Ekesi, Paul-André Calatayud
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/4182e3a614994c80913d1f5ed343c3e9
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spelling	oai:doaj.org-article:4182e3a614994c80913d1f5ed343c3e92021-12-02T14:01:36ZA system dynamics model for pests and natural enemies interactions10.1038/s41598-020-79553-y2045-2322https://doaj.org/article/4182e3a614994c80913d1f5ed343c3e92021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-79553-yhttps://doaj.org/toc/2045-2322Abstract Stemborers (Busseola fusca, Sesamia calamistis and Chilo partellus), the fall armyworm (Spodoptera frugiperda) and associated parasitoids constitute an interacting system in maize fields in Kenya. This work aims at developing and evaluating models that represent the evolution of those interactions by applying system thinking and system dynamics approaches with its archetypes [causal loop diagram (CLD), reinforcing (R) and balancing (B)] to analyse the population of these multi-species systems. The software Vensim PLE 8.0.9 was used to implement the models and carry out the simulations of single- and multi-species systems. The results showed that when a single pest species with its associated parasitoids interact with the host plant, the species was able to establish and sustain by cyclical relationship between populations of the pest and the associated parasitoids. However, in multi- pest species systems, dominance of S. frugiperda and C. partellus over B. fusca and S. calamistis was observed, but without extinction. However, there was a likelihood for B. fusca being displaced by C. partellus. Overall, the models predict the co-existence of fall armyworm with stemborer species as an additional pest of maize in Africa that need to be considered henceforth in designing IPM strategies in maize.Bonoukpoè Mawuko SokameHenri E. Z. TonnangSevgan SubramanianAnani Y. BruceThomas DuboisSunday EkesiPaul-André CalatayudNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Bonoukpoè Mawuko Sokame Henri E. Z. Tonnang Sevgan Subramanian Anani Y. Bruce Thomas Dubois Sunday Ekesi Paul-André Calatayud A system dynamics model for pests and natural enemies interactions
description	Abstract Stemborers (Busseola fusca, Sesamia calamistis and Chilo partellus), the fall armyworm (Spodoptera frugiperda) and associated parasitoids constitute an interacting system in maize fields in Kenya. This work aims at developing and evaluating models that represent the evolution of those interactions by applying system thinking and system dynamics approaches with its archetypes [causal loop diagram (CLD), reinforcing (R) and balancing (B)] to analyse the population of these multi-species systems. The software Vensim PLE 8.0.9 was used to implement the models and carry out the simulations of single- and multi-species systems. The results showed that when a single pest species with its associated parasitoids interact with the host plant, the species was able to establish and sustain by cyclical relationship between populations of the pest and the associated parasitoids. However, in multi- pest species systems, dominance of S. frugiperda and C. partellus over B. fusca and S. calamistis was observed, but without extinction. However, there was a likelihood for B. fusca being displaced by C. partellus. Overall, the models predict the co-existence of fall armyworm with stemborer species as an additional pest of maize in Africa that need to be considered henceforth in designing IPM strategies in maize.
format	article
author	Bonoukpoè Mawuko Sokame Henri E. Z. Tonnang Sevgan Subramanian Anani Y. Bruce Thomas Dubois Sunday Ekesi Paul-André Calatayud
author_facet	Bonoukpoè Mawuko Sokame Henri E. Z. Tonnang Sevgan Subramanian Anani Y. Bruce Thomas Dubois Sunday Ekesi Paul-André Calatayud
author_sort	Bonoukpoè Mawuko Sokame
title	A system dynamics model for pests and natural enemies interactions
title_short	A system dynamics model for pests and natural enemies interactions
title_full	A system dynamics model for pests and natural enemies interactions
title_fullStr	A system dynamics model for pests and natural enemies interactions
title_full_unstemmed	A system dynamics model for pests and natural enemies interactions
title_sort	system dynamics model for pests and natural enemies interactions
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/4182e3a614994c80913d1f5ed343c3e9
work_keys_str_mv	AT bonoukpoemawukosokame asystemdynamicsmodelforpestsandnaturalenemiesinteractions AT henrieztonnang asystemdynamicsmodelforpestsandnaturalenemiesinteractions AT sevgansubramanian asystemdynamicsmodelforpestsandnaturalenemiesinteractions AT ananiybruce asystemdynamicsmodelforpestsandnaturalenemiesinteractions AT thomasdubois asystemdynamicsmodelforpestsandnaturalenemiesinteractions AT sundayekesi asystemdynamicsmodelforpestsandnaturalenemiesinteractions AT paulandrecalatayud asystemdynamicsmodelforpestsandnaturalenemiesinteractions AT bonoukpoemawukosokame systemdynamicsmodelforpestsandnaturalenemiesinteractions AT henrieztonnang systemdynamicsmodelforpestsandnaturalenemiesinteractions AT sevgansubramanian systemdynamicsmodelforpestsandnaturalenemiesinteractions AT ananiybruce systemdynamicsmodelforpestsandnaturalenemiesinteractions AT thomasdubois systemdynamicsmodelforpestsandnaturalenemiesinteractions AT sundayekesi systemdynamicsmodelforpestsandnaturalenemiesinteractions AT paulandrecalatayud systemdynamicsmodelforpestsandnaturalenemiesinteractions
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A system dynamics model for pests and natural enemies interactions

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