Sleep Ecophysiology

John LeskuDr John Lesku

Senior Lecturer, College of Science, Health and Engineering

View profile, publications and contact details

Our research uses the comparative approach to reveal the evolutionary history of sleep and sleep functions. We also investigate how ecological demands (e.g. anti-predator behaviour, mating) influence the amount, composition, depth and timing of sleep in wild animals.

Research areas and major projects

Sleep is a prominent behaviour in the lives of animals. Yet surprisingly, our understanding of the functions of sleep and sleep states remains incomplete. The Sleep Ecophysiology Group's research focuses on studies of sleep behaviour and neurophysiology in a diverse selection of animals, including birds and mammals, reptiles and amphibians, and invertebrates. Using this strong comparative approach, we aim to provide insight into the evolution of sleep and sleep functions, the role of ecological factors in determining where, when and how long animals sleep, among other ecologically - and evolutionarily-based questions. For more information, please contact Dr John Lesku (