Ungulate activity classification: calibrating activity monitor GPS collars for Rocky Mountain elk, mule deer, and cattle AJ Gaylord - 2013

Oregon Deer Population, Management News and Information Archive

...When remotely collecting data, researchers must balance sampling frequency with the battery life of the recording device. The duration of each behavior relative to 5
sampling interval length might play an important role in activity monitor calibration. To 
date no efforts have been made to determine the optimal sampling interval duration to use with these sensors. Similarly, Lotek 4500 GPS collars featuring accelerometer activity monitors had not been calibrated for Rocky Mountain elk. We examined discriminant function model structures for 3 sampling interval durations (5-min, 152-sec, and 64sec) to determine what behaviors can be accurately classified for animals with and without access to supplemental feed in the form of hay...

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