University of Minnesota
University of Minnesota
http://www.umn.edu/
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Unit's name.

Black Bear Research in the Field

  • Dr. Paul Iaizzo retrieves data from a loop recorder previously implanted in this anesthetized black bear while graduate student Mark Ditmer makes adjustments to the radio collar. Dr. Paul Iaizzo retrieves data from a loop recorder that had previously been implanted in this anesthetized bear. Graduate student Mark Ditmer adjusts the bear's collar.
  • The noninvasive telemetry head retrieves data. The data collected from this device will allow researchers to gain a better understanding of cardiac trends including activity and heart rate variability. The loop recorder can also be programmed to track atypical cardiac events such as arrythmias. The recorder is interrogated using a non-invasive telemetry head. The data gathered from this device keeps track of cardiac trends such as activity and heart rate variability. This device can also be programmed to track atypical cardiac events.
  • The research crew obtains the snout-tail resistance for this 515 lb bear. An electrical current is pulsed from the snout to vent and the resistance of the current is obtained in ohms. Using the weight of the animal, snout-tail resistance and total body water can be calculated. From this calculation, the body water percent and body fat percent are obtained. This information is useful in monitoring water and fat loss during hibernation. The field crew obtains the snout-tail resistance for this 515 lb. bear. An electrical current is pulsed from the snout to vent and the resistance of the current is obtained in ohms. Using the weight of the animal, snout-tail resistance the total body water can be calculated. From this calculation, the body water percent and body fat percent. This information is useful in monitoring water and fat loss during hibernation.
  • In the field, the bear is weighed by placing a hanging scale on a tree branch. Many people lift the bear while a researcher records the weight. This bear weighs over 500 lbs. In the field, the bear is weighed by placing a hanging scale on a tree branch. Many people lift the bear while a researcher takes the weight. This bear is weighing in over 500 lbs.