Socially learned recognition of predation risk and non-risk : a theoretical model and empirical test of learning ability in the convict cichlid (amatitlania siquia)

Abstract

Avoiding predators, though clearly fitness enhancing, may be costly in terms of the time and energy it requires. Effectively mediating the trade-off between the cost of antipredator behaviour and the cost of getting eaten requires an ability to assess changes in predation risk; an ability that can be enhanced by learning. Here, I investigated the role of learning in predation risk assessment. I developed an individual-based model to examine the conditions favouring social over asocial learning in the context of risk assessment, and explored, using a laboratory experiment, the possibility that some animals might socially learn not to fear novel cues in their environment. I found that in the context of risk assessment, social learning was more advantageous than asocial learning under a wide range of conditions. In the experimental study, I found no evidence that my study animals could socially learn not to fear novel cues in their environment.n Acknowledgements I would like to thank my lab-mates () for sharing many fun times and for encouraging my two passions -biology and baking. A special thanks to Rebecca for taking amazing care of the fishies, Adam for his computer wizardry and logistical support, and Stacey for many insightful discussions and for teaching me most of what I know about fish (and cats).Thanks also to my family for their support and encouragement, and to my dad for teaching me how to appreciate nature.Finally, I would like to thank my advisor, Dr. Jean-Guy Godin, for his support and guidance (and patience) over the past two years, and for providing me with many opportunities for academic growth. I have thoroughly enjoyed the entire research experience.