Plant richness enhances banana weevil regulation in a tropical agroecosystem by affecting a multitrophic food web
Field-scale plant diversification of agroecosystems is a promising way to enhance ecological pest regulation. Existing studies, however, have provided inconsistent results and have generally focused on only a few trophic groups or a few levels of plant diversification. Using field data from banana agroecosystems and structural equation modelling, we assessed (i) the effects of plant species richness (two height strata) and soil cover (% of living plant cover and% of litter cover) on a multitrophic arthropod food web, (ii) the links among five trophic groups of arthropods (detritivores, herbivores, non-ant omnivores, omnivorous ants, and predators) and (iii) the effect of natural enemies on the abundance and the damage of the banana weevil, Cosmopolites sordidus. Plant species richness of low strata (<1.5 m high) had a positive bottom-up effect on herbivore prey abundance, which in turn enhanced the abundance of non-ant omnivores and of predators. Litter cover promoted the abundance of detritivore prey, which in turn enhanced predators and omnivorous ants. The latter two trophic groups were negatively related to weevil damage and probably reduced damage by consuming weevil eggs and larvae. Finally, on the basis of our results, we suggest how the plant community and soil cover within the field could be managed to enhance ecological regulation of the banana weevil.
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dig-cirad-fr-5855082024-01-29T00:31:44Z http://agritrop.cirad.fr/585508/ http://agritrop.cirad.fr/585508/ Plant richness enhances banana weevil regulation in a tropical agroecosystem by affecting a multitrophic food web. Poeydebat Charlotte, Tixier Philippe, De Lapeyre de Bellaire Luc, Carval Dominique. 2017. Biological Control, 114 : 125-132.https://doi.org/10.1016/j.biocontrol.2017.08.009 <https://doi.org/10.1016/j.biocontrol.2017.08.009> Plant richness enhances banana weevil regulation in a tropical agroecosystem by affecting a multitrophic food web Poeydebat, Charlotte Tixier, Philippe De Lapeyre de Bellaire, Luc Carval, Dominique eng 2017 Biological Control H10 - Ravageurs des plantes F08 - Systèmes et modes de culture Musa Cosmopolites sordidus agroécosystème lutte intégrée biodiversité gestion intégrée des ravageurs dynamique des populations couverture végétale Arthropoda régime alimentaire modèle de simulation modèle mathématique écologie écologie animale http://aims.fao.org/aos/agrovoc/c_4993 http://aims.fao.org/aos/agrovoc/c_30069 http://aims.fao.org/aos/agrovoc/c_36669 http://aims.fao.org/aos/agrovoc/c_16187 http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_34030 http://aims.fao.org/aos/agrovoc/c_6111 http://aims.fao.org/aos/agrovoc/c_25409 http://aims.fao.org/aos/agrovoc/c_635 http://aims.fao.org/aos/agrovoc/c_2261 http://aims.fao.org/aos/agrovoc/c_24242 http://aims.fao.org/aos/agrovoc/c_24199 http://aims.fao.org/aos/agrovoc/c_2467 http://aims.fao.org/aos/agrovoc/c_427 Costa Rica http://aims.fao.org/aos/agrovoc/c_1920 Field-scale plant diversification of agroecosystems is a promising way to enhance ecological pest regulation. Existing studies, however, have provided inconsistent results and have generally focused on only a few trophic groups or a few levels of plant diversification. Using field data from banana agroecosystems and structural equation modelling, we assessed (i) the effects of plant species richness (two height strata) and soil cover (% of living plant cover and% of litter cover) on a multitrophic arthropod food web, (ii) the links among five trophic groups of arthropods (detritivores, herbivores, non-ant omnivores, omnivorous ants, and predators) and (iii) the effect of natural enemies on the abundance and the damage of the banana weevil, Cosmopolites sordidus. Plant species richness of low strata (<1.5 m high) had a positive bottom-up effect on herbivore prey abundance, which in turn enhanced the abundance of non-ant omnivores and of predators. Litter cover promoted the abundance of detritivore prey, which in turn enhanced predators and omnivorous ants. The latter two trophic groups were negatively related to weevil damage and probably reduced damage by consuming weevil eggs and larvae. Finally, on the basis of our results, we suggest how the plant community and soil cover within the field could be managed to enhance ecological regulation of the banana weevil. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/585508/1/1-s2.0-S104996441730172X-main.pdf text Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1016/j.biocontrol.2017.08.009 10.1016/j.biocontrol.2017.08.009 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.biocontrol.2017.08.009 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1016/j.biocontrol.2017.08.009 info:eu-repo/grantAgreement/ERDF//33157//(EU) Use of the biodiversity of Martinique to improve the functioning of agro ecosystems/ |
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H10 - Ravageurs des plantes F08 - Systèmes et modes de culture Musa Cosmopolites sordidus agroécosystème lutte intégrée biodiversité gestion intégrée des ravageurs dynamique des populations couverture végétale Arthropoda régime alimentaire modèle de simulation modèle mathématique écologie écologie animale http://aims.fao.org/aos/agrovoc/c_4993 http://aims.fao.org/aos/agrovoc/c_30069 http://aims.fao.org/aos/agrovoc/c_36669 http://aims.fao.org/aos/agrovoc/c_16187 http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_34030 http://aims.fao.org/aos/agrovoc/c_6111 http://aims.fao.org/aos/agrovoc/c_25409 http://aims.fao.org/aos/agrovoc/c_635 http://aims.fao.org/aos/agrovoc/c_2261 http://aims.fao.org/aos/agrovoc/c_24242 http://aims.fao.org/aos/agrovoc/c_24199 http://aims.fao.org/aos/agrovoc/c_2467 http://aims.fao.org/aos/agrovoc/c_427 http://aims.fao.org/aos/agrovoc/c_1920 H10 - Ravageurs des plantes F08 - Systèmes et modes de culture Musa Cosmopolites sordidus agroécosystème lutte intégrée biodiversité gestion intégrée des ravageurs dynamique des populations couverture végétale Arthropoda régime alimentaire modèle de simulation modèle mathématique écologie écologie animale http://aims.fao.org/aos/agrovoc/c_4993 http://aims.fao.org/aos/agrovoc/c_30069 http://aims.fao.org/aos/agrovoc/c_36669 http://aims.fao.org/aos/agrovoc/c_16187 http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_34030 http://aims.fao.org/aos/agrovoc/c_6111 http://aims.fao.org/aos/agrovoc/c_25409 http://aims.fao.org/aos/agrovoc/c_635 http://aims.fao.org/aos/agrovoc/c_2261 http://aims.fao.org/aos/agrovoc/c_24242 http://aims.fao.org/aos/agrovoc/c_24199 http://aims.fao.org/aos/agrovoc/c_2467 http://aims.fao.org/aos/agrovoc/c_427 http://aims.fao.org/aos/agrovoc/c_1920 |
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H10 - Ravageurs des plantes F08 - Systèmes et modes de culture Musa Cosmopolites sordidus agroécosystème lutte intégrée biodiversité gestion intégrée des ravageurs dynamique des populations couverture végétale Arthropoda régime alimentaire modèle de simulation modèle mathématique écologie écologie animale http://aims.fao.org/aos/agrovoc/c_4993 http://aims.fao.org/aos/agrovoc/c_30069 http://aims.fao.org/aos/agrovoc/c_36669 http://aims.fao.org/aos/agrovoc/c_16187 http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_34030 http://aims.fao.org/aos/agrovoc/c_6111 http://aims.fao.org/aos/agrovoc/c_25409 http://aims.fao.org/aos/agrovoc/c_635 http://aims.fao.org/aos/agrovoc/c_2261 http://aims.fao.org/aos/agrovoc/c_24242 http://aims.fao.org/aos/agrovoc/c_24199 http://aims.fao.org/aos/agrovoc/c_2467 http://aims.fao.org/aos/agrovoc/c_427 http://aims.fao.org/aos/agrovoc/c_1920 H10 - Ravageurs des plantes F08 - Systèmes et modes de culture Musa Cosmopolites sordidus agroécosystème lutte intégrée biodiversité gestion intégrée des ravageurs dynamique des populations couverture végétale Arthropoda régime alimentaire modèle de simulation modèle mathématique écologie écologie animale http://aims.fao.org/aos/agrovoc/c_4993 http://aims.fao.org/aos/agrovoc/c_30069 http://aims.fao.org/aos/agrovoc/c_36669 http://aims.fao.org/aos/agrovoc/c_16187 http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_34030 http://aims.fao.org/aos/agrovoc/c_6111 http://aims.fao.org/aos/agrovoc/c_25409 http://aims.fao.org/aos/agrovoc/c_635 http://aims.fao.org/aos/agrovoc/c_2261 http://aims.fao.org/aos/agrovoc/c_24242 http://aims.fao.org/aos/agrovoc/c_24199 http://aims.fao.org/aos/agrovoc/c_2467 http://aims.fao.org/aos/agrovoc/c_427 http://aims.fao.org/aos/agrovoc/c_1920 Poeydebat, Charlotte Tixier, Philippe De Lapeyre de Bellaire, Luc Carval, Dominique Plant richness enhances banana weevil regulation in a tropical agroecosystem by affecting a multitrophic food web |
description |
Field-scale plant diversification of agroecosystems is a promising way to enhance ecological pest regulation. Existing studies, however, have provided inconsistent results and have generally focused on only a few trophic groups or a few levels of plant diversification. Using field data from banana agroecosystems and structural equation modelling, we assessed (i) the effects of plant species richness (two height strata) and soil cover (% of living plant cover and% of litter cover) on a multitrophic arthropod food web, (ii) the links among five trophic groups of arthropods (detritivores, herbivores, non-ant omnivores, omnivorous ants, and predators) and (iii) the effect of natural enemies on the abundance and the damage of the banana weevil, Cosmopolites sordidus. Plant species richness of low strata (<1.5 m high) had a positive bottom-up effect on herbivore prey abundance, which in turn enhanced the abundance of non-ant omnivores and of predators. Litter cover promoted the abundance of detritivore prey, which in turn enhanced predators and omnivorous ants. The latter two trophic groups were negatively related to weevil damage and probably reduced damage by consuming weevil eggs and larvae. Finally, on the basis of our results, we suggest how the plant community and soil cover within the field could be managed to enhance ecological regulation of the banana weevil. |
format |
article |
topic_facet |
H10 - Ravageurs des plantes F08 - Systèmes et modes de culture Musa Cosmopolites sordidus agroécosystème lutte intégrée biodiversité gestion intégrée des ravageurs dynamique des populations couverture végétale Arthropoda régime alimentaire modèle de simulation modèle mathématique écologie écologie animale http://aims.fao.org/aos/agrovoc/c_4993 http://aims.fao.org/aos/agrovoc/c_30069 http://aims.fao.org/aos/agrovoc/c_36669 http://aims.fao.org/aos/agrovoc/c_16187 http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_34030 http://aims.fao.org/aos/agrovoc/c_6111 http://aims.fao.org/aos/agrovoc/c_25409 http://aims.fao.org/aos/agrovoc/c_635 http://aims.fao.org/aos/agrovoc/c_2261 http://aims.fao.org/aos/agrovoc/c_24242 http://aims.fao.org/aos/agrovoc/c_24199 http://aims.fao.org/aos/agrovoc/c_2467 http://aims.fao.org/aos/agrovoc/c_427 http://aims.fao.org/aos/agrovoc/c_1920 |
author |
Poeydebat, Charlotte Tixier, Philippe De Lapeyre de Bellaire, Luc Carval, Dominique |
author_facet |
Poeydebat, Charlotte Tixier, Philippe De Lapeyre de Bellaire, Luc Carval, Dominique |
author_sort |
Poeydebat, Charlotte |
title |
Plant richness enhances banana weevil regulation in a tropical agroecosystem by affecting a multitrophic food web |
title_short |
Plant richness enhances banana weevil regulation in a tropical agroecosystem by affecting a multitrophic food web |
title_full |
Plant richness enhances banana weevil regulation in a tropical agroecosystem by affecting a multitrophic food web |
title_fullStr |
Plant richness enhances banana weevil regulation in a tropical agroecosystem by affecting a multitrophic food web |
title_full_unstemmed |
Plant richness enhances banana weevil regulation in a tropical agroecosystem by affecting a multitrophic food web |
title_sort |
plant richness enhances banana weevil regulation in a tropical agroecosystem by affecting a multitrophic food web |
url |
http://agritrop.cirad.fr/585508/ http://agritrop.cirad.fr/585508/1/1-s2.0-S104996441730172X-main.pdf |
work_keys_str_mv |
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