THE DAY-NIGHT (CIRCADIAN) PHYSIOLOGICAL RHYTHMS OF LARGE ARCTIC CARNIVORS IN NATURAL CONTINUOUS LIGHT (SUMMER) AND CONTINUOUS DARKNESS (WINTER).

• Main Authors: Folk,G. E., Folk,M. A., Brewer,M. C.
• Other Authors: ARCTIC INST OF NORTH AMERICA WASHINGTON D C
• Format: Text
• Language: English
• Published: 1966
• Subjects: Anatomy and Physiology; *CARNIVORA; *BIOLOGICAL RHYTHMS; ARCTIC REGIONS; HIBERNATION; ELECTROCARDIOGRAPHY; BODY TEMPERATURE; PHYSIOLOGY; SURGICAL IMPLANTATION; DIURNAL VARIATIONS; BEARS; Arctic; Simmonds
• Online Access: http://www.dtic.mil/docs/citations/AD0643263; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0643263

For two years observations on grizzly and black bears were obtained with Iowa physiological radio-capsules (EKG and body temperature, long life, short range, implantable). The condition of deep winter lethargy, which was demonstrated the first winter, was confirmed the second winter; summer sleeping...