Dr. John Ratcliffe

Professor

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Biography

John Ratcliffe is a Professor in the Department of Ecology and Evolutionary Biology at the University of Toronto. His research focuses on the auditory neuroethology and cognitive ecology of echolocating bats, with a keen interest in acoustic signal production and reception, as well as their purposes in locating prey and distinguishing between good and bad food sources. He studies the design and evolution of hearing mechanisms in moths and insects that evade predation by bats. Current investigations also delve into the dynamic control of biosonar beam shape and the information updates conducted by aerial hawking bats, as well as the cognitive specializations related to foraging and migration in bats. Ratcliffe employs an integrated biopsychological approach that includes single-cell recordings of auditory activity in insects and comparative analyses of interactions among multiple predators and prey. Additionally, he has begun to explore the underlying mechanisms of echolocation in Oilbirds and porpoises.

Research Interests

Experience

Professor

2020-01-01 — Present

University of Toronto • Toronto, ON

Teaching and conducting research in Ecology and Evolutionary Biology.

Requirements for University of Toronto

Master Program
Requirements
GPA Requirement
Required:3.3
IELTS
Listening
Required:6.5
Reading
Required:6.5
Writing
Required:6.5
Speaking
Required:6.5
Overall
Required:7
TOEFL
Listening
Required:22
Reading
Required:22
Writing
Required:22
Speaking
Required:22
Total
Required:93
Prerequisites
Appropriate four-year bachelor's degree Background in sociological theory and statistics preferred
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Specialization Notes

Department of Sociology