Guilhem Doulcier

PhD student

Ecology, Evolution & Applied Mathematics

About me

My portrait, thanks to Laurance Boulet.

I'm a PhD student in Paris (France). I'm passionate about the interactions between computational, mathematical and biological sciences.

Research interest

Click on a subject to learn more about my research:

Adaptive evolution of cell adhesion and the evolution of sociality

Could the social life cycle observed in some amoeba be an intermediate step toward multicellular organisms ?
Thomas Garcia & Silvia De Monte - Institut de Biologie de l'École Normale Supérieure, Paris (France)

Metagenomic of oceanic viral communities

Can we make sense of the massive diversity of oceanic phages revealed by high-throughput sequencing methods ?
Simon Roux & Matthew Sullivan - University of Arizona, Tucson (Arizona, USA)

Community reshuffling following global changes

How can we describe the ongoing complex recomposing of natural communities in the context of global changes ?
  • A General framework to assess species contribution to community changes Guilhem Doulcier, Pierre Gausere, Vincent Devictor, Sonia Kéfi, 2015 (almost ready for submission ;-) ).
Pierre Gauzere, Vincent Devictor & Sonia Kéfi - Institut des Sciences de l'Évolution de Montpellier, Montpellier (France)

Structure of natural bipartite networks

What is characteristic of a natural plant-pollinator or host parasite network ? How is that different of any bipartite network ?
  • A new implementation of the modularity optimisation for graph partitions by simulated annealing. Now merged upstream !
  • Rnetcarto: a R-package for modularity optimisation of graph partitions. (Contribute)
Daniel Stouffer - University of Canterbury, Christchurch (New-Zeland)

Metagenomic of arid microbial communities

What are the driver of microbial diversity in an arid environment ?
Manuel Delgado Baquerizo - University of Western Sydney (Australia), Daniel Stouffer - University of Canterbury, Christchurch (New-Zeland)

Experimental evolution in a millifluidic setup

Designing and modeling experimental evolution of bacteria in droplets.
Paul B. Rainey ESPCI (Paris) and the Millidrop startup

Other projects

Small projects

  • ShapeCompare: A tool to visualize and compare multiple hShape experiments results treated with the Shape Finder software.
  • ipdt: A tool to run iterated prisoner's dilemma tournaments.


Community involvement


guilhem(dot)doulcier(at)ens(dot)fr (PGP)