Topics My research focus on identifying drivers of variations linked to locomotor performances in invasive populations of amphibians. Locomotion is the mechanism through which the animal will disperse, and hence, may allow introduced populations to cross the limits of their introduction site. These invasive traits are regulated by a set of properties intrinsic of the animal but also by its environment. Their role, trade-off and limits are crucial issues if we want to understand how a so-called invasive specie is characterized, such as Marsh frogs from the Pelophylax genus. Traits linked to their invasive potential are evaluated, as part of my PhD thesis, through behavioural, morpho-anatomical and physiological methods whilst considering life history traits of individuals. The behaviour of these animals is quantified through different temperatures to suggest how these invaders will react to climatic changes. Studied species: Marsh frogs from the ridibundus complex (Pelophylax) Supervisor : Mathieu Denoël Co-Supervisor : Anthony Herrel Publication Denoël, M., Duret, C., Lorrain-Soligon, L., Padilla, P., Pavis, J., Pille, F., Tendron, P., Ficetola, G. F., & Falaschi, M. (In press). High habitat invasibility unveils the invasiveness potential of water frogs. Biological Invasions. doi:10.1007/s10530-022-02849-9 https://hdl.handle.net/2268/292466 Padilla, P., Tallis, J., Hurst, J., Courant, J., James, R., & Herrel, A. (2020). Do muscle contractile properties drive differences in locomotor performance in invasive populations of Xenopus laevis in France? Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology. doi:10.1007/s00360-020-01310-4 https://hdl.handle.net/2268/262200 Araspin, L., Martinez, A., Wagener, C., Courant, J., Louppe, V., Padilla, P., Measey, J., & Herrel, A. (2020). Rapid Shifts in the Temperature Dependence of Locomotor Performance in an Invasive Frog, Xenopus laevis, Implications for Conservation. Integrative and Comparative Biology. doi:10.1093/icb/icaa010 https://hdl.handle.net/2268/262201 Padilla, P., Courant, J., & Herrel, A. (2019). Allocation trade-offs impact organ size and muscle architecture in an invasive population of Xenopus laevis in Western France. Journal of Anatomy. doi:10.1111/joa.13063 https://hdl.handle.net/2268/244964 Padilla, P., Ducret, V., Bonneaud, C., Courant, J., & Herrel, A. (2019). Acclimation temperature effects on locomotor traits in adult aquatic anurans (X. tropicalis and X. laevis) from different lattitudes: possible implications for climate change. Conservation Physiology. https://hdl.handle.net/2268/244965