Chrono-environnement - UMR 6249 CNRS/UFC
Campus de la Bouloie
16 rue de Gray
25030 Besançon cedex
France
Léa Bariod
POLLUTION
+33 (0)3 81 66 62 42, bureau -116L (La Bouloie)
0000-0002-6568-0698 
lea-bariod
Écologie – Environnement – Parasitologie – Écotoxicologie
Présentation
Originally from the Jura region, I studied biology and population dynamics at the University of Burgundy, before completing a PhD in 2023 at the veterinary school « VetAgro Sup », in collaboration with the French Office for Biodiversity and the Laboratory of Biometry and Evolutionary Biology. My doctoral research focused on the environmental and phenotypic determinants of parasitic infestation heterogeneity in roe deer (Capreolus capreolus), highlighting on the still little explored links between essential mineral elements and parasitism in a large wild mammal. Wishing to remain in the field of wildlife health, I oriented my postdoctoral work toward ecotoxicology. In 2024, at the Centre for Biological Studies of Chizé, I investigated the effects of pesticides on the physiology and microbiota of farmland birds such as the Montagu’s harrier (Circus pygargus) and the grey partridge (Perdix perdix). In response to the growing issue of chemical pollutants, I continued my research in 2025 at the Chrono-environment laboratory, where I am currently working on the SPACEMOD and COMICS projects, among others, which focuse on the effects of multi-contamination (pesticides, trace metal elements) on food webs and the health of small mammals, in particular the digestive microbiota, at both individual and population levels.
▶ Voir plus sur le CV HAL
Publications
Articles dans une revue
- Léa Bariod, Elva Fuentes, Maurice Millet, Joël White, Samuel Jacquiod, et al.. Exposure to pesticides is correlated with gut microbiota alterations in a farmland raptor. Environment International, 2025, 199, pp.109436. ⟨10.1016/j.envint.2025.109436⟩. ⟨hal-05057925⟩
- Léa Bariod, Elva Fuentes, Maurice Millet, Samuel Jacquiod, Joël White, et al.. Direct and indirect effects of pesticide exposure on the gut microbiota of a farmland raptor. Journal of Hazardous Materials, 2025, 485, pp.136857. ⟨10.1016/j.jhazmat.2024.136857⟩. ⟨hal-04877649⟩
- Léa Bariod, Agathe Gaffard, Anaïs Rodrigues, Maurice Millet, Vincent Bretagnolle, et al.. Comparison of pesticide contamination between captive-reared and wild grey partridges: insights into environmental exposure disparities. Environmental Science and Pollution Research, 2025, 32 (37), pp.21845-21854. ⟨10.1007/s11356-024-34925-z⟩. ⟨hal-04701305⟩
- Léa Bariod, Sonia Saïd, Hubert Ferté, Slimania Benabed, Hervé Bidault, et al.. Effects of forest structure on the endoparasitism in roe deer Capreolus capreolus. Parasite, 2025, 32, pp.45. ⟨10.1051/parasite/2025041⟩. ⟨hal-05186251⟩
- Léa Bariod, Sonia Saïd, Clément Calenge, Renaud Scheifler, Clémentine Fritsch, et al.. Essential mineral elements in roe deer: Associations with parasites and immune phenotypes in two contrasting populations. Ecology and Evolution, 2024, 14, ⟨10.1002/ece3.11613⟩. ⟨hal-04779633⟩
- Léa Bariod, Agathe Gaffard, Anaïs Rodrigues, Maurice Millet, Vincent Bretagnolle, et al.. Comparison of pesticide contamination between captive-reared and wild grey partridges: insights into environmental exposure disparities. Environmental Science and Pollution Research, 2024, ⟨10.1007/s11356-024-34925-z⟩. ⟨hal-04779563⟩
- Amandine Herrada, Léa Bariod, Sonia Saïd, Benjamin Rey, Hervé Bidault, et al.. Minor and trace element concentrations in roe deer hair: A non-invasive method to define reference values in wildlife. Ecological Indicators, 2024, 159, pp.111720. ⟨10.1016/j.ecolind.2024.111720⟩. ⟨hal-04454221⟩
- Léa Bariod, Sonia Saïd, Clément Calenge, Stéphane Chabot, Vincent Badeau, et al.. Parasitized or non-parasitized, why? A study of factors influencing tick burden in roe deer neonates. PLoS ONE, 2022, 17 (7), pp.18. ⟨10.1371/journal.pone.0262973⟩. ⟨hal-04335031⟩
Poster de conférence
- Léa Bariod, Sonia Saïd, Clément Calenge, Stéphane Chabot, Vincent Badeau, et al.. Parasitized, non-parasitized, why? A study of factors influencing tick burden in roe deer neonates. EvoLyon, Nov 2021, Lyon, France. . ⟨hal-03865224⟩
- Léa Bariod, Sonia Saïd, Clément Calenge, Stéphane Chabot, Vincent Badeau, et al.. Tick risk in roe deer fawns : what links with environment and individual characteristics. 69th WDA / 14th EWDA - Joint Virtual Conference, Aug 2021, Cuenca (Virtual), Spain. . ⟨hal-04629828⟩
Pré-publications, Documents de travail
- Léa Bariod, Joël White, Maurice Millet, Jérôme Moreau, Karine Monceau. Complex interactions between the gut microbiota, pesticide contamination and physiological traits in grey partridges. 2025. ⟨hal-05168894⟩
Documents récupérés de l'archive ouverte HAL 