Seasonal patterns in the physiology of the European brown bear (Ursus arctos arctos) in Finland

摘要: Abstract The physiological indicators such as body temperature, blood chemistry and hematology of seven European brown bears ( Ursus arctos ) were used in the present study. They kept either Zoological Garden University Oulu (65°N, 25°24'E) or Ranua approx. 150 km NE Oulu. Transmitters with a temperature-dependent pulse rate implanted subcutaneously into abdominal cavity under anesthesia. Our data indicate that temperature bear decreases during winter sleep to 4–5°C below normal level (37.0–37.5°C). lowest values, 33.1–33.3°C, measured several times midwinter. Hematocrit, hemoglobin erythrocyte counts seem be higher, leucocyte count lower denning period than awake bear. Plasma N-wastes before after it. analysed parameters showed plasma catecholamines thyroid hormones decreased fall.