Faculty of Biology - Evolutionary Biology
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Dr. Matthias Galipaud

Department of Evolutionary Biology
Morgenbreede 45, 33615 Bielefeld
Office: VHF-245
Phone: 0521-106 28220521-106 2822
email: matthias.galipaud"at"uni-bielefeld.de

Research interests

I am a behavioural ecologist applying both experimental and theoretical approaches to the study of adaptive behaviours. My main interests focus on mate choice strategies and their relation to subsequent population mating patterns and sexual selection. Animals strategically vary in mate choice strategies according to environmental factors. Competition for mate access can for instance affect optimal choosiness, towards lower level of choosiness or alternative sampling strategies in highly competitive populations. Competition also has a more direct effect on the quality and number of potential mates encountered by individuals during sampling. This in turn affects how animal learn about current partner quality distribution in the environment and how they plastically change their mate choice behaviour accordingly.

I also investigate more generally how behavioural plasticity evolves. This for instance includes studying (i)  the evolution of the timing and duration of adaptive sensitive periods throughout life (ii) investigations about how competitive constraints on learning affect the evolution of plasticity and (iii) studying the evolution of sexual imprinting in uncertain environments.

I am always keen to study other aspects of animal behaviour such as sexual conflict or host manipulation by parasites, and I have a weird fascination for biostatistics and how they can efficiently be taught to ecologists.

Short CV

2004 - 2009 Bachelor and master studies in organismal biology and animal behaviour at the University of Burgundy in Dijon, France.
2009 - 2012 PhD in the Evolutionary Ecology team of the Biogéosciences lab, Dijon, France.
PhD thesis: "Mating strategies and resulting patterns in mate guarding crustaceans: an empirical and theoretical approach”. [pdf]
2013 Postdoctoral project funded by the ASAB research grant and in collaboration with the MAD group at the University of Bristol.
Since 09/2014 Postdoctoral researcher in the Evolutionary Biology Department at the University of Bielefeld.


Matthias Galipaud, Loïc Bollache, Abderrahim Oughadou, François-Xavier Dechaume-Moncharmont. (2015). Males do not always switch females when presented with a better reproductive option. Behavioral Ecology. 26(2): 359-366.

Matthias Galipaud, Zoé Gauthey, Jérémie Turlin, Loïc Bollache, Clément Lagrue. (2015). Mate choice and male-male competition among morphologically cryptic but genetically divergent amphipod lineages. Behavioral Ecology and Sociobiology. 69:1907-1916.

Matthias Galipaud, Loïc Bollache, Rémi Wattier, Christine Dubreuil, François-Xavier Dechaume-Moncharmont, Clément Lagrue. (2015). Overestimation of the strength of size-assortative pairing in taxa with cryptic diversity: a case of Simpson's paradox. Animal Behaviour. 102:217-221.

Sum of weights carry very little information about variable’s importance in AIC-based multi-model statistical approaches.
Galipaud, M., Gillingham, A.F.M., David, M. & Dechaume-Moncharmont, F.-X. (2014). Ecologists overestimate the importance of predictor variable in model averaging: a plea for cautious interpretations. Methods in Ecology and Evolution 5: 983-991.

Great cryptic diversity exists among amphipods of eastern france. Individuals living in sympatry but originating from different cryptic group do not pair with each other, revealing prezygotic barriers and partial reproductive isolation.
Lagrue, C., Wattier, R., Galipaud, M., Gauthey, Z., Rullmann, J-.P., Dubreuil, C., Rigaud, T. & Bollache, L. (2014). Confrontation of cryptic diversity and mate discrimination within Gammarus pulex and Gammarus fossarum species complexes. Freshwater Biology 59: 2555-2570

Size-assortative mating can result from a state-dependent male preference based on female time left to reproduction. The link between mating preferences and mating patterns is not straightforward.
Galipaud, M., Bollache, L. & Dechaume-Moncharmont, F.-X. (2013). Assortative mating by size without a size-based preference: the female-sooner norm as a mate-guarding criterion. Animal Behaviour 85: 35-41.

Male gammarid infected by a cestode parasite have low sperm reserves and a decreased propensity to pair.
Galipaud, M., Gauthey, Z. & Bollache, L. (2011). Pairing success and sperm reserve of male Gammarus pulex infected by Cyathocephalus truncatus (Cestoda: Spathebothriidea). Parasitology 138: 1429-1435.

Females paired for longer with a male have higher mating rates revealing potential benefits of precopulatory mate guarding and reduced sexual conflict over its duration.
Galipaud, M., Dechaume-Moncharmont, F.-X., Oughadou, A. & Bollache, L. (2011). Does foreplay matter? Gammarus pulex females may benefit from long-lasting precopulatory mate guarding. Biology Letters 7: 333-335.