About me.

I am currently a Postdoctoral Researcher in maths at the University of Vienna. I am part of the FWF Project Waves in Population Genetics whose PI is Emmanuel Schertzer.

I did my Ph.D. at the École Polytechnique, CMAP, under the supervision of Pascal Maillard & Gaël Raoul. The manuscript of my thesis, entitled Spatial dynamic of interfaces in ecology: deterministic and stochastic models can be found here.

My research is in probability theory. My work focuses on microscopic models for front propagation (in particular branching systems) and their applications to ecology and population genetics. More generally, I am interested in the impact of structure on the genetic diversity of a population.

Contact.

Faculty of Mathematics, Oskar-Morgenstern-Platz 1, 1090 Wien

Email: julie.tourniaire 'at' univie.ac.at

MMEE 2024

Zsofia Talyigas and I will chair a mini-symposium at the Mathematical Models in Ecology and Evolution (MMEE) conference (July 15-18, Vienna) on Branching processes as models for structured populations.

Publications and preprints.

• Reduction of the effective population size in a branching particle system in the moderate mutation-selection regime
  F. Boenkost , K. A. Khudiakova, J. Tourniaire, Arxiv prepint (2024).
• Convergence of spatial branching processes to alpha-stable CSBPs: Genealogy of semi-pushed fronts
  F. Foutel-Rodier, E. Schertzer, J. Tourniaire, Arxiv prepint (2024).
• Spectral analysis and k-spine decomposition of inhomogeneous branching Brownian motions. Genealogies in fully pushed fronts
  E. Schertzer, J. Tourniaire, Accepted in Annals of Probability (2023).
• A branching particle system as a model of semi pushed fronts
  J. Tourniaire, Accepted in Annals of Probability (2021).
• Spatial dynamics of a population in a heterogeneous environment
  P. Maillard, G. Raoul, J. Tourniaire, Arxiv preprint (2021).

Talks.

2024	Evolution in structured populations: recent progress and new challenges, University of Oxford
	Probability seminar, Université de Besançon
2023	Probability seminar, Université d'Angers
	Probability seminar, University of Oxford
	Workshop: Ancestral lines for (multitype) genetic models, Bielefeld University
	43rd Conference on Stochastic Processes and their Applications, Lisbon
	21st Informs Applied Probability Society Conference, Nancy
2022	Workshop: Spatial models in population genetics, Vienna
	Biomath seminar, Vienna
	Junior female researchers in probability, Berlin
	Austrian stochastic days, Vienna
	Biomath seminar, Vienna
2021	Bath-Beijing-Paris branching stuctures meeting, online
	Modern stochastics: theory and applications, online
	Probability seminar, Institut mathématique de Toulouse