Translator Disclaimer
1 March 2006 Limitations of Receiver/Data Loggers for Monitoring Radiocollared Animals
Author Affiliations +
Abstract

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 from receiver/data logger (radius of detection). Based upon this signal strength variation, we then calculated a zone of uncertainty (i.e., the area in which detection of a radio signal was uncertain at a particular radius of detection). The zone of uncertainty increased exponentially with a linear increase in radius of detection. We do not recommend using receiver/data loggers to monitor radiocollared animals in discrete areas unless uncertainty is acceptable. (WILDLIFE SOCIETY BULLETIN 34(1):111–115; 2006)

STEWART W. BRECK, NATHAN LANCE, and JEAN BOURASSA "Limitations of Receiver/Data Loggers for Monitoring Radiocollared Animals," Wildlife Society Bulletin 34(1), 111-115, (1 March 2006). https://doi.org/10.2193/0091-7648(2006)34[111:LODLFM]2.0.CO;2
Published: 1 March 2006
JOURNAL ARTICLE
5 PAGES

This article is only available to subscribers.
It is not available for individual sale.
+ SAVE TO MY LIBRARY

SHARE
ARTICLE IMPACT
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top