Speaker : Dr. Nadia Aubin-Horth – Université Laval – Department of Biology
Title : Understanding the causes of behaviour variation in nature in stickleback: from fishing nets to pipets
As behavioural biologists, we observe fascinating variation in behaviour that has an impact on several aspects of an organism’s life. “Why” these differences arise can be studied both from an evolutionary point of view and from a proximate one, by studying differences in the brain and in physiology found between individuals that are more or less aggressive against another individual, sociable, or afraid of predators. Studying sticklebacks, we are interested in variation between individuals (“personality”), between populations facing contrasting selection pressures, as well as between healthy and parasitized sticklebacks that suggest that their flatworm parasite may be manipulating their behaviour.