Use of Radio Tags/Collars in Polar Bear Fieldwork (Steve Amstrup)

Video Shot in: 2009

Dr. Steve Amstrup explains the diverse types of radio tags used in polar bear research, tailored to specific study objectives. Researchers employ various collar designs depending on the desired data frequency and duration. Detailed movement patterns and foraging behaviors require high-frequency transmissions, while long-term habitat usage analysis may rely on infrequent but long-lasting transmissions. Trade-offs exist, as more information depletes battery life more quickly. However, across the global polar bear range, similar radio tagging methods are employed to collect data. Fieldwork spans a few months, followed by extensive data analysis and report writing. Initial objectives guide data collection, but unexpected insights often arise during subsequent analysis. The advent of advanced GPS radio collars provides a wealth of information, including location, activity, water presence, temperature, and more. These technological advancements require robust data storage and management systems, facilitated by advancements in computer technology.