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AGRIPOP

 

    

 

 

Dimitry WINTERMANTEL

                   PhD

 

 

 

 

 

 

Preliminary title

The effect of pesticide use and other agricultural practices on the honeybee ecology in farmland landscapes

 

Research period

2015-2018

 

Supervisor

Jean François Odoux (INRA Le Magneraud) & Vincent Bretagnolle (CNRS Chizé)

 

Registration University

University of Poitiers - Sciences pour l'Environnement - Gay Lussac

 

Keywords

Performance d’abeille domestique, impact du changement d’assolement, pratiques agricoles, vitalité d’abeille

 

Study Site

Zone Atelier Plaine & Val de Sèvre

 

Research project

Modern agricultural production systems are more and more questioned. Agricultural intensification led to strong declines in biodiversity - including wild and honeybees - as well as declines in beekeeping. Societal consequences of agricultural intensification range from effects on pollination services to effects on public health. The thesis aims at investigating the ecology of honeybees in cereal agro-ecosystem (which represents the majority of agricultural production areas and beekeeping in France and Europe), especially under stressful environments, including food stress (lack floral resources in spring), pathological stress (Varroa pathogens) or chemical stress (pesticides), as well as their interactive or additive effects. The ecology of the honeybee will be investigated at its correct spatial scale, i.e. that of landscape. The PHD will aim at defining the landscape characteristics, that depend to a large extent on human activity (land use, crop management, farming practices in regard to pesticides, abundance and distribution of floral resources), that may limit or promote colony demographic dynamics (brood, adult population size, honey reserves). A focus will be devoted to the issue of pesticides and their impact on bees, both in spatial and temporal terms. The study will take place on the Long Term Ecological Research Zone Atelier Plaine & Val de Sèvre, and in particular the ECOBEE platform that is unique in France and Europe. The variety of farming systems and practices, their continuous recording over the last 21 years, the size of the study site (450 km²), and the number of hives monitored every year (50) since 2008, provide a unique data set that the PHD student will have full access to.

 

Internship report

WINTERMANTEL Dimitry. 2015. The effect of field-level clothianidin exposure on the prevalence and loads of pathogenic and non-pathogenic microbes in bumblebees (B. terrestris). Master 2, Environmental Science in Europe (EnvEuro),  Faculty of Natural Resources and Agricultural Sciences, Swedish University of Agricultural Sciences (PDF)

 

 

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Centre d'Etudes Biologiques de Chizé