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Post-doctoral researcher, INRAE, UMR 0980 BAGAP Email: emma.jeavons@inrae.fr Address:  INRAE Centre Bretagne-Normandie, UMR 0980 BAGAP, 65 rue de St Brieuc, CS 84215, 35042 Rennes Cedex Fields of expertise: Agroecology, Community Ecology, Landscape Ecology, Behavioural Ecology Keywords: Biodiversity, Ecosystem services, Biological control, Pollinator community, Parasitioids ResearchGate : Emma Jeavons

Research

Current research topics

My research aims at understanding the ecological and evolutionary consequences of anthropic changes on species interactions, community structure and ecosystem functioning. To do so, I aim at combining a diversity of approaches, such as community ecology, trophic ecology, landscape ecology and behavioural ecology. Plant-arthropods trophic foodwebs (plant-herbivore-parasitoid-hyperparasitoid, plant-pollinator) are my main biological models. For now, my work mainly focuses in agricultural systems with the implementation of habitat management strategies for biodiversity conservation purposes and ecosystem services enhancement.

Post-doctoral project

POLLIHAIE: Hedgerow functionality in spatio-temporal complementation of floral resources for pollinating insects

Coordinators: Audrey Alignier (UMR BAGAP) and Stéphanie Aviron (UMR BAGAP)

Grant: Fondation de France, Recherches sur les agroforesteries, arbres et durabilité des agrosystèmes en zone tempérée. 2021 – 2023

Outreach

Sharing science is a main part of my activities. I participated to several vulgarization events (e.g. Pint of science, 2018; Fête de la science, 2018 & 2019; press article in Sans Transition Bretagne n°16 (March-April 2019)), university lectures, and meetings with farmers.

Publications

Jeavons E., Chevrie O., Le Lann C., Renault D., Floch M., Bourgeois T., Bodiguel R., Fontaine-Breton T., van Baaren J. (2021b). Exploitative competition for floral resources reduces sugar intake but differently impacts the foraging behaviour of two non-bee flower visitors. Oikos, DOI: 10.1111/oik.08576. (ACL)

Jeavons E., van Baaren J., Le Ralec A., Buchard C., Duval F., Llopis S., Postic E., Le Lann C. (2021a). Third and fourth trophic level composition shift in an aphid-parasitoid-hyperparasitoid food web limits aphid control in an intercropping system. Journal of Applied Ecology, https://doi.org/10.1111/1365-2664.14055. (ACL)

Jeavons E. (2020). Vegetation diversification schemes and interactions among flower-visiting beneficial insects: which impacts on natural enemy and pollinator communities and on biological control of herbivores? (PhD)

Thomine E., Jeavons E., Rusch A., Bearez P., Desneux N. (2020). Effect of crop diversity on predation activity and population dynamics of the mirid predator Nesidiocoris tenuis, Journal of Pest Science, https://doi.org/10.1007/s10340-020-01222-w. (ACL)

Jeavons E., van Baaren J., Le Lann C. (2020). Resource partitioning among a pollinator guild: A case study of monospecific flower crops under high honeybee pressure. Acta Oecologica, https://doi.org/10.1016/j.actao.2020.103527. (ACL)

Jeavons E., van Baaren J., Le Ralec A., Le Lann C. (2019). When complementary resources fail to increase top down control: an answer in trophic foodwebs? Sixth International Entomophagous Insect Conference, Perugia, Italy, September 2019. (ACTI)

Jeavons E., Le Lann C., van Baaren J. (2019). Resource sharing among pollinator guilds: a case study of flower monocultures under honeybee pressure, Réunion annuelle du GDR Pollineco, Montpellier, France, March 2019. (ACTN)

Jeavons E., Le Lann C., van Baaren J. (2018). Intra-field floral resources to enhance biological control: do interactions with other flower-visiting insects affect parasitism rate? SFEcologie. Rennes, France, October 2018. (ACTI)