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Limitations Of Receiver/Data Loggers For Monitoring Radiocollared Animals, Stewart W. Breck, Nathan Lance, Jean Bourassa
Limitations Of Receiver/Data Loggers For Monitoring Radiocollared Animals, Stewart W. Breck, Nathan Lance, Jean Bourassa
USDA Wildlife Services: Staff Publications
We evaluated the effectiveness of receiver/data loggers for monitoring the presence/absence of radiocollared animals in discrete areas. Our primary objective was to determine how variation in transmitter signal strength affected the size of area being monitored. This information will help researchers better manage the uncertainty related to determining an animal’s location relative to a discrete boundary. We used an adjustable attenuator to measure signal strength to determine the minimum number of decibels (dB) required to eliminate detection of a radio signal by receiver/data loggers. We quantified how dB varied depending upon orientation of the transmitter on the animal and distance …