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Life is full of challenges, such as finding food, avoiding predators, and choosing mates. Solving these challenges involves information acquisition, decision-making and context-specific behavioral responses. How do animals make such decisions? What is the role of experience in behavioral development? Which behaviors influence survival and reproduction in different contexts? How do animals influence each other’s behavior when they have conflicting interests? At EPB, we study these questions in diverse species and using a range of methods, including experimental evolution in the lab, observations in the field, and mathematical and statistical modelling.
A chimpanzee eating ripe figs (Ficus elasticoides). Credit: Martin Colbeck

All animals must find food to survive. Foraging involves a series of decisions, such as where to go, how long to spend in a patch, and if you are a predator, which prey to attack. We study the adaptive value of these behaviors and the (cognitive) mechanisms that produce them. In some cases, animals show irrational behavior that reduces their survival and reproduction. Were these decisions adaptive in past environments but not anymore? What can such apparent mistakes teach us about the past election pressures on these behaviors?

A great tit enters a nest box with food for its chicks. Credit: Jacob Kamminga Ecomoni

For sexually reproducing species, sexual attraction lies at the core of finding a suitable mate and reproduce.  At EPB, our research focuses the causes and consequences of variation in sexual signals and responses to these signals in night-active butterflies (moths), where females emit long-range pheromone signals to which males are attracted. As many moth species are pests, evolution of these sexual signals and responses has important implications not only for their own survival, but also for the effectiveness of pest control, where moth sex pheromones are used for monitoring and mating disruption.

In mating, foraging, and other domains, animals often exhibit phenotypic plasticity, the ability to adjust their development to local environmental conditions. For instance, animals growing up in a dangerous environment (e.g., with many predators) may develop protective morphology and behavior. We study the conditions in which natural selection favors phenotypic plasticity, including sensitive periods in which experience has a relatively large impact on phenotypes.

Our study species vary from insects to birds to primates (including humans), studied in and outside the lab; in natural habitat as well as Anthropocene landscapes, such as green houses, city parks and zoos.

Dr. E.R. (Emily) Burdfield Steel

Assistant Professor of Chemical Ecology

Dr. W.E. (Willem) Frankenhuis

Associate Professor of Evolutionary Psychobiology

Prof. dr. K.R.L. (Karline) Janmaat

Professor in Cognitive Behavioural Ecology

Prof. dr. A.T. (Astrid) Groot

Professor Population & Evolutionary biology

Dr. ir. M. (Michiel) van Wijk

Researcher

Dr. M. (Marjolein) Bruijning

Assistant professor of Evolutionary ecology