Aquatic overwintering of the bullfrog (Rana catesbeiana) during natural hypoxia in an ice-covered pond

This study was initiated to better understand the microenvironment of the aquatic hibernaculum and the behaviour of aquatically overwintering frogs. Adult bullfrogs (Rana catesbeiana) overwintering in an ice-covered pond in Nova Scotia were tracked for several weeks using radio and ultrasonic telemetry. PO...