More pests but less pesticide applications: Ambivalent effect of landscape complexity on conservation biological control.

In agricultural landscapes, the amount and organization of crops and semi-natural habitats (SNH) have the potential to promote a bundle of ecosystem services due to their influence on ecological community at multiple spatio-temporal scales. SNH are relatively undisturbed and are often source of comp...

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Autores principales:	Patrizia Zamberletti, Khadija Sabir, Thomas Opitz, Olivier Bonnefon, Edith Gabriel, Julien Papaïx
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Biology (General) QH301-705.5
Acceso en línea:	https://doaj.org/article/f932ac8f9884433d9877c9ec86727705
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spelling	oai:doaj.org-article:f932ac8f9884433d9877c9ec867277052021-12-02T19:57:58ZMore pests but less pesticide applications: Ambivalent effect of landscape complexity on conservation biological control.1553-734X1553-735810.1371/journal.pcbi.1009559https://doaj.org/article/f932ac8f9884433d9877c9ec867277052021-11-01T00:00:00Zhttps://doi.org/10.1371/journal.pcbi.1009559https://doaj.org/toc/1553-734Xhttps://doaj.org/toc/1553-7358In agricultural landscapes, the amount and organization of crops and semi-natural habitats (SNH) have the potential to promote a bundle of ecosystem services due to their influence on ecological community at multiple spatio-temporal scales. SNH are relatively undisturbed and are often source of complementary resources and refuges, therefore supporting more diverse and abundant natural pest enemies. However, the nexus of SNH proportion and organization with pest suppression is not trivial. It is thus crucial to understand how the behavior of pest and natural enemy species, the underlying landscape structure, and their interaction, may influence conservation biological control (CBC). Here, we develop a generative stochastic landscape model to simulate realistic agricultural landscape compositions and configurations of fields and linear elements. Generated landscapes are used as spatial support over which we simulate a spatially explicit predator-prey dynamic model. We find that increased SNH presence boosts predator populations by sustaining high predator density that regulates and keeps pest density below the pesticide application threshold. However, predator presence over all the landscape helps to stabilize the pest population by keeping it under this threshold, which tends to increase pest density at the landscape scale. In addition, the joint effect of SNH presence and predator dispersal ability among hedge and field interface results in a stronger pest regulation, which also limits pest growth. Considering properties of both fields and linear elements, such as local structure and geometric features, provides deeper insights for pest regulation; for example, hedge presence at crop field boundaries clearly strengthens CBC. Our results highlight that the integration of species behaviors and traits with landscape structure at multiple scales is necessary to provide useful insights for CBC.Patrizia ZamberlettiKhadija SabirThomas OpitzOlivier BonnefonEdith GabrielJulien PapaïxPublic Library of Science (PLoS)articleBiology (General)QH301-705.5ENPLoS Computational Biology, Vol 17, Iss 11, p e1009559 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Biology (General) QH301-705.5
spellingShingle	Biology (General) QH301-705.5 Patrizia Zamberletti Khadija Sabir Thomas Opitz Olivier Bonnefon Edith Gabriel Julien Papaïx More pests but less pesticide applications: Ambivalent effect of landscape complexity on conservation biological control.
description	In agricultural landscapes, the amount and organization of crops and semi-natural habitats (SNH) have the potential to promote a bundle of ecosystem services due to their influence on ecological community at multiple spatio-temporal scales. SNH are relatively undisturbed and are often source of complementary resources and refuges, therefore supporting more diverse and abundant natural pest enemies. However, the nexus of SNH proportion and organization with pest suppression is not trivial. It is thus crucial to understand how the behavior of pest and natural enemy species, the underlying landscape structure, and their interaction, may influence conservation biological control (CBC). Here, we develop a generative stochastic landscape model to simulate realistic agricultural landscape compositions and configurations of fields and linear elements. Generated landscapes are used as spatial support over which we simulate a spatially explicit predator-prey dynamic model. We find that increased SNH presence boosts predator populations by sustaining high predator density that regulates and keeps pest density below the pesticide application threshold. However, predator presence over all the landscape helps to stabilize the pest population by keeping it under this threshold, which tends to increase pest density at the landscape scale. In addition, the joint effect of SNH presence and predator dispersal ability among hedge and field interface results in a stronger pest regulation, which also limits pest growth. Considering properties of both fields and linear elements, such as local structure and geometric features, provides deeper insights for pest regulation; for example, hedge presence at crop field boundaries clearly strengthens CBC. Our results highlight that the integration of species behaviors and traits with landscape structure at multiple scales is necessary to provide useful insights for CBC.
format	article
author	Patrizia Zamberletti Khadija Sabir Thomas Opitz Olivier Bonnefon Edith Gabriel Julien Papaïx
author_facet	Patrizia Zamberletti Khadija Sabir Thomas Opitz Olivier Bonnefon Edith Gabriel Julien Papaïx
author_sort	Patrizia Zamberletti
title	More pests but less pesticide applications: Ambivalent effect of landscape complexity on conservation biological control.
title_short	More pests but less pesticide applications: Ambivalent effect of landscape complexity on conservation biological control.
title_full	More pests but less pesticide applications: Ambivalent effect of landscape complexity on conservation biological control.
title_fullStr	More pests but less pesticide applications: Ambivalent effect of landscape complexity on conservation biological control.
title_full_unstemmed	More pests but less pesticide applications: Ambivalent effect of landscape complexity on conservation biological control.
title_sort	more pests but less pesticide applications: ambivalent effect of landscape complexity on conservation biological control.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/f932ac8f9884433d9877c9ec86727705
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More pests but less pesticide applications: Ambivalent effect of landscape complexity on conservation biological control.

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