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INRA
24, chemin de Borde Rouge –Auzeville – CS52627
31326 Castanet Tolosan CEDEX - France

Dernière mise à jour : Mai 2018

Menu Logo Principal UMR BAGAP Temporary logo for l'institut Agro / Agrocampus Ouest Logo ESA

BAGAP research unit

Léa Uroy's Personal Page

Photo_LU

Ph.D., research units INRA 0980 BAGAP and CNRS 6553 ECOBIO (Paysaclim team)

Name : Léa UROY

Phone: +33 6 34 25 62 22 • Emaillea.uroy@univ-rennes1.fr

Address: INRA Centre Bretagne-Normandie, UMR 0980 BAGAP, 65 rue de St-Brieuc, CS 84215, 35042 Rennes Cedex, France

Expertise: Landscape ecology, Community ecology

Keywords: Landscape connectivity; temporal dynamics; plant community structure; reproductive and dispersal traits

Research

Ph.D. Thesis : Effect of connectivity dynamics on plant assemblages in agricultural landscape: taking into account interactions between ecological continuity types 

Supervision : Cendrine Mony (ECOBIO research unit), Audrey Alignier (BAGAP research unit) and Aude Ernoult (ECOBIO research unit)

Context and issues

How landscape connectivity impacts the assembly of plant communities has become a central issue in landscape ecology. However, the contrasted results of in situ studies dealing with this issue have made it not possible to emerge general patterns. Most of these studies:

  • neglect the potential occurrence of a time delay between connectivity changes and its effect on populations and communities (relaxation time)
  • assess connectivity between patches based on the ecological continuities from the same nature than the studied communities.

This single consideration seems restrictive to describe the response of the entire community, because some species have a large ecological niche and are likely to use different types of continuities (interactions between continuity types).

Objectives

I am particularly interested in analyzing the influence of:

  • the temporal dynamics of landscape connectivity provided by the different types of continuities in structuring plant communities
  • reproductive and dispersal traits in plant community responses to changes in connectivity dynamics.

These influences will be studied in the three habitats that dominate agricultural landscapes, namely woodlands, grasslands, and crop fields.

Finally, I will focus on crop systems to determine the influence of connectivity temporal dynamics provided by the different type of continuities on ecosystem services provided by weed communities.

This work will be carried out in the Long Term Ecological Research site of "Zone Atelier Armorique".

Funding
FondationDeFrance

2017 – 2020: BISCO Project – BIodiversity and ecosystem Services associated to COmplementarity between wooded and cultivated continuity types in agroforestry landscapes (Coordinators: C. Mony, A. Alignier et A. Ernoult).

Biodiversa

2017 – 2020: Woodnet Biodiversa Project – Connectivity patterns and processes along a gradient of European landscapes with woody vegetation and spatial heterogeneity (Coordinator: J. Baudry, Partners: Univ. of Madrid, Univ. of Louvain and Univ. of Picardie).

Teaching Experience

2017 – 2018: Teaching mission (64 hours), University of Rennes 1, UFR SVE (Environmental and Life Sciences), Teaching team of Ecology.

Tutorial and Practical Courses in:

  • Quantitative biology (2nd year of Bachelor's degree)
  • Introduction to the practice of environmental diagnosis (3rd year of Bachelor's degree)
  • Introduction to the Geographical Information Systems (1st year of Master's degree)
  • Environmental management at the landscape level (2nd year of Master's degree).