Ecological-economic modeling of pollination complexity and pesticide use in agricultural crops

Giorgos Kleftodimos (), Nicola Gallai () and Charilaos Kephaliacos ()
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Nicola Gallai: LEREPS - Laboratoire d'Etude et de Recherche sur l'Economie, les Politiques et les Systèmes Sociaux - UT Capitole - Université Toulouse Capitole - UT - Université de Toulouse - UT2J - Université Toulouse - Jean Jaurès - UT - Université de Toulouse - Institut d'Études Politiques [IEP] - Toulouse - ENSFEA - École Nationale Supérieure de Formation de l'Enseignement Agricole de Toulouse-Auzeville
Charilaos Kephaliacos: LEREPS - Laboratoire d'Etude et de Recherche sur l'Economie, les Politiques et les Systèmes Sociaux - UT Capitole - Université Toulouse Capitole - UT - Université de Toulouse - UT2J - Université Toulouse - Jean Jaurès - UT - Université de Toulouse - Institut d'Études Politiques [IEP] - Toulouse - ENSFEA - École Nationale Supérieure de Formation de l'Enseignement Agricole de Toulouse-Auzeville

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Abstract: Recent years have witnessed a substantial decline of both managed and wild bees in Europe due to the increase of pesticides use. Hence, many European agricultural systems depend on the buy/rental of managed bees in order to maintain sufficient levels of pollination services. However, this substitution of wild bees by managed ones apart from costly may be also ineffective as managed bees are not perfect substitutes for wild ones. In fact, a plethora of ecological studies showed that the presence of both bee species in the field and their complementarity effect generates an enhanced pollination activity which optimizes production. This study tries to evaluate this effect by developing an analytical ecological-economic model displaying farmer's decisions between two agricultural inputs, pollination services and pesticides. Our results highlight that the economic value of this complementarity may offer to farmers an alternative optimum management strategy. This strategy lies on the production range where managed bees are working together with wild ones, offering an enhanced pollination to the crop production. Moreover, we showed that the adoption of a less toxic pesticide or better application methods by the farmers should increase the wild bees' productivity and consequently, the total economic value of pollinators.

Date: 2021
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Published in Journal of Bioeconomics, 2021, 23, pp.297-323. ⟨10.1007/s10818-021-09317-9⟩

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Persistent link: https://EconPapers.repec.org/RePEc:hal:journl:hal-03278146

DOI: 10.1007/s10818-021-09317-9

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