People

Charles Mullon

Charles Mullon

Head, PI
After undergraduate studies in Mathematics, Charles did his PhD in evolutionary biology on the evolution of sexual dimorphism at University College London. He then moved to the University of Lausanne for a post-doc investigating the emergence of social polymorphism in structured populations. He then went to Japan for a brief time as an invited lecturer. Starting January 2020, he is an Eccellenza assistant professor at the University of Lausanne.
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Thomas Lesaffre

Thomas Lesaffre

Post-doc
Thomas obtained his Master's degree in evolutionary ecology at the University of Lille (France), followed by a PhD in theoretical population genetics with Sylvain Billiard in the same institution. During his PhD, he used mathematical models and individual-centred simulations to study the link between life-history, mating system and mutation load in flowering plants. After defending his thesis in March 2021, he joined the lab in October 2021 as a post-doc. He currently works on the evolution of plant sexual systems, with a particular focus on the transition from hermaphroditism, where individuals express male and female sexual functions, to dioecy, where individuals are unisexual.
   
Ewan Flintham

Ewan Flintham

Post-doc
Ewan completed an undergraduate degree in Biology at the University of Oxford before moving to Imperial College London to do a master's in Computational Biology and a PhD in theoretical evolutionary biology supervised by Vincent Savolainen and Charles Mullon. He joined the lab full-time in Autumn 2022 as a post-doc. Ewan uses mathematical models and computer simulations to study eco-evolutionary dynamics in sexual systems. In particular, he is interested in the ecological drivers of selection in males and females, and the consequence of this for demography and patterns of genetic variation.
     
Miguel dos Santos

Miguel dos Santos

Post-doc
Miguel obtained both his master and PhD in evolutionary biology at the University of Lausanne with Claus Wedekind, investigating the evolution of punishment to promote cooperation in humans. He then joined Stu West’s group at the University of Oxford to focus on social evolution theory. After a postdoc on cooperation and punishment in social psychology with Daria Knoch at the University of Bern, he worked again for Stu West in Oxford, to study the evolution of social behaviours in variable environments. He then joined Charles Mullon’s lab in September 2024. Using theory, he now investigates how the intergenerational effects of reputation shape cooperation in social dilemmas.
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Malvika Srivastava

Malvika Srivastava

Post-doc
Malvika completed her B.Sc. in physics from St. Stephen’s college, Delhi and then moved to Cologne to pursue her M.Sc. with a specialisation in statistical and biological physics. During her masters research, she worked on a geometric classification of fitness landscapes and studied its implications for the evolution of recombination. She continued working on fitness landscapes across multiple scales for her Ph.D. at ETH Zurich, where her research ranged from the level of transcription factor-DNA interactions to the level of body-plan development. After defending her PhD in August 2024, she joined the TEE group from October 2024 as a post-doc, where she is excited to integrate ecological interactions in her research.
       
Iris Prigent

Iris Prigent

PhD student
Iris holds a Msc in evolutionary biology from the Université de Montpellier with a background in mathematics. She previously worked with Fabien Condamine (Institut des Sciences de l’Evolution de Montpellier) on the phylogeny of cycads, and with Amaury Lambert and Julie Marin (College de France) on modelling the effect of gene flow on gene trees. Iris is now a PhD student modelling evolution in metapopulations. Using mathematical modelling, she wants to understand the emergence of polymorphism for functional traits that influence a species’ ecology with long term effects, such as resource use strategies or habitat maintenance.
     
Vitor Sudbrack

Vitor Sudbrack

PhD student
Coming from physics, Vitor's Master thesis with Roberto Kraenkel at the Institute for Theoretical Physics (IFT/Unesp, Brazil) focused on modeling the effects of habitat fragmentation into single species dynamics in artificial landscapes. During a scientific stay at the Institute for Interdisciplinary Physics and Complex Systems (IFISC/CSIC/UiB, Spain), Vitor studied competition release between two competing species in fragmented landscapes. In his PhD, he will investigate the effects of population structure on the segregation of social and competitive alleles to better understand the pace and underlying genetic signatures of adaptation in non-randomly mixing populations.
             
Ritam Das

Ritam Das

PhD student
Ritam completed his BS-MS in Physics at the Indian Institute of Science Education and Research Mohali. For his master’s thesis, he worked in the CoCoMo Group at the Max Planck Institute of Animal Behaviour in Konstanz, where he developed an event detector for animal calls using machine learning techniques. In September 2024, he joined the TEE Lab as a PhD student.
   
Julie Roux

Julie Roux

PhD student
Julie completed her Master’s degree in Evolutionary Biology at the Université de Montpellier. During her Master’s studies, she developed an eco-evolutionary model for gynodioecious species under the supervision of Patrice David (Centre d'Écologie Fonctionnelle et Évolutive, Montpellier). She also conducted a meta-analysis on the strength of sexual selection on song diversity in Oscines, supervised by Erwan Harscouët and Claire Doutrelant (CEFE, Montpellier). In December 2024, she joined the TEE as a PhD student. Her PhD research focuses on developing a sexual selection model to study the joint dynamics of condition and condition-dependent traits.
 

Alumni

Franz Chai

Franz Chai

Master student
Franz worked on the project The effect of encounter rate on sexual discrimination under the supervision of Ewan.
 
Max Schmid

Max Schmid

Post-doc
After a post-doc in our lab, Max is now an Assistant Professor at the University of Tübingen, Germany.
           
Marco Fele

Marco Fele

Master student
After investigating whether leadership favors colony performance in the decision-making process with simulations, Marco is currently a PhD student at Swansea University, UK.
Manuel Grubb

Manuel Grubb

Master student
Manuel developed the project The effect of ecological inheritance on the evolution of resource consumption under the supervision of Iris.
Loraine Hablützel

Loraine Hablützel

Master student
After her Master project supervised by Max, Loraine is now a PhD student at the University of Bern.
   
Marie Kolsh

Marie Kolsh

Master student
Marie studied the effects of social structure and dispersion on the culture of vervet monkeys, supervised by Charles Mullon and Erica van de Waal.