Welcome on my webpage!

I'm an associate professor of Ecology & Evolution at Toulouse 3 University (Evolution & Biological Diversity lab EDB). I'm interested in the physiological and behavioral responses of wild and farmed animals to environmental stressors in the context of global changes. Here you can find some information on my research and teaching activities.

Lisa Jacquin

Maître de Conférences- Associate professor

Université Toulouse 3 Paul Sabatier

Laboratoire Evolution et Diversité Biologique EDB UMR5174, UPS CNRS IRD

Bat 4R1 bureau 24, 118 route de Narbonne, 31062 Toulouse cedex 9, France

lisa.jacquin-at-univ-tlse3.fr +33 (0)5 61 55 64 74

KEYWORDS: Ecophysiology, Behaviour, Animal Coloration, Host-parasite Interactions, Multiple stressors, Ecotoxicology


  • Physiological and behavioral responses to multiple stressors
  • Host-parasite interactions
  • Evolution of melanin-based coloration


  • Birds (pigeons)
  • Freshwater crayfishes and fishes (guppy, goldfish, brown trout, gudgeon)


New: PLASTIGAR project: effects of microplastics on ecosystem and fish health in the Garonne watershed

(main PIs: Julien Cucherousset and Alexandra TerHalle). We are investigating the levels of contamination by microplastics in the environment and fish from the Garonne watershed. Next step will be to investigate their biological effects of microplastics on riverine aquatic systems and fish health. Stay tuned! Funding: Agence de l'Eau Adour-Garonne AEAG.

PHYPAT project : Of fish and men: Evolution of physiological responses to pollution and pathogens in freshwater fishes

(main PI: Lisa Jacquin) We received a grant from Agence de l'Eau and CNRS EC2CO. We focus on the effects of anthropogenic perturbations (mainly organic and inorganic pollution) on fish health at different biological levels, from molecules to the whole organism. We are testing whether some populations developed specific physiological or behavioral abilities to cope with water pollution, and how this can affect their responses to pathogens, in a multiple stressors framework. We are using a combination of field and lab approaches in the common gudgeon Gobio occitaniae, such as comparisons of populations in the field, experiments in controlled conditions and reciprocal transplantation in rivers. This is a collaborative project with several labs and colleagues. Jessica Côte (postdoc) and Quentin Petitjean (PhD candidate) joined the team. More info on this project here. Fundings: Agence de l'Eau Adour-Garonne AEAG and CNRS EC2CO (ECODYN program).


  • PKD project (participant, main PIs: S Blanchet and G Loot) (2018-2021): Determinants of PKD emerging disease in brown trout under global change (SETE/EDB/Fédé Ariège) Funding: AEAG/AFB
  • PLASTIGAR (participant, main PIs: J Cuherousset and A TerHalle) (2018-2021): Effects of microplastics in freshwater systems (EDB/IMRCP, CNRS/UPS). Funding: AEAG
  • PHYPAT (PI) (2016-2019): Variability of responses to pollution in wild gudgeons (Univ Toulouse EDB/Ecolab/SETE Moulis). Funding: AEAG
  • ECODYN (co-PI with P Laffaille) (2017-2018): Intraspecific variability of responses to multiple stressors (EDB/Ecolab) Funding: CNRS EC2CO
  • Melanin in a changing world (PI, transversal project) (2014-actual): Coloration and adaptive responses to global changes in fishes (EDB/SETE/INRA St-Pée-sur-Nivelle, Pays Basque).


  • FRAIB (co-PI with S Blanchet) (2015-2016): Complex phenotypes and intraspecific variability in freshwater fishes (EDB/SETE) financement FRAIB
  • Fyssen (PI, 2013-2014): Transgenerational effects of parasites and oil pollution on behavior in Trinidadian guppies (Université de Toulouse EDB/McGill University, Montréal, Canada). Funding: Fyssen fondation.
  • ATER project (2012): Effects of acanthocephalan parasites on gammarid behavior (CEREEP/UPMC/Université Versailles-St-Quentin)
  • PhD project (2009-2012): Adaptations to parasites and trace metal pollution in urban pigeons (Université Pierre et Marie Curie EcoEvo/Université Paris-Ouest LECC/MNHN)

One of my favorite field site in Pays Basque

Main topics

1. Ecophysiology and multiple stressors

Different individuals of the same species often have very different ways of coping with abiotic (temperature, pollutants) and biotic (parasites) stressors, but the causes and consequences of such intra-specific diversity remain unclear. We investigate the costs and benefits of behavioural (avoidance, sociality) and physiological defenses (especially antioxydants and immunity) against stressors. Because the costs of mounting such defenses are tightly linked to environmental variations, we study how multiple stressors can interact to shape individual responses across perturbation gradients in wild and farmed populations. We use a combination of correlative and experimental approaches in various species (especially freshwater fishes).

2. Parental effects and microevolution

Physiological and behavioral defenses against stressors are shaped across generations through parental investment. During my PhD I focused on the transmission of maternal antibodies and its effect on parasite resistance in pigeons. Our current studies on fishes aim at understanding how parental exposure to parasites and pollutants can affect the behavioral and physiological traits of their offspring through parental effects. In addition, we are characterizing the evolutionary mechanisms (plasticity, transgenerational plasticity, genetic adaptation) leading to phenotypic divergence across wild populations exposed to different environmental conditions.

3. Evolution of melanin-based coloration

Many vertebrate species display a wonderful melanin-based color diversity, but the biological significance of such coloration is still unclear. Recent results suggest that melanin-based coloration could reflect individual strategies. Each morph could display a specific behavioural and physiological strategy facing stressors and may be specialized in the exploitation of a particular microhabitat. For instance, darker pigeons have a better immunity and seem to be better adapted to heavily urbanized and parasitized environments compared to paler ones. Differently colored fish (trout and gudgeon) also respond differently to environmental variations. We are now testing (1) whether color variability could reflect alternative niche use and (2) whether more variable species/populations are better able to cope with environmental stressors.

Some pigeons are more equal than others". Artistic project by J Charriere

4. Adaptation to global changes

We aim at deciphering which key physiological and behavioral traits are involved in the responses of wild vertebrates to human-induced perturbations (mainly pollution and urbanization). We are currently investigating the evolutionary processes leading (or not) to local adaptation in human-altered environments. The next step will be to assess their consequences for population persistence, hoping to provide useful knowledge and tools for managers.

Nice view of Montréal from McGill University- typical North American urban landscape!