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Physical Sciences and Mathematics Commons™
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Full-Text Articles in Physical Sciences and Mathematics
The Feasibility Of Counting Songbirds Using Unmanned Aerial Vehicles, Andrew M. Wilson, Janine M. Barr, Megan E. Zagorski
The Feasibility Of Counting Songbirds Using Unmanned Aerial Vehicles, Andrew M. Wilson, Janine M. Barr, Megan E. Zagorski
Environmental Studies Faculty Publications
Obtaining unbiased survey data for vocal bird species is inherently challenging due to observer biases, habitat coverage biases, and logistical constraints. We propose that combining bioacoustic monitoring with unmanned aerial vehicle (UAV) technology could reduce some of these biases and allow bird surveys to be conducted in less accessible areas. We tested the feasibility of the UAV approach to songbird surveys using a low-cost quadcopter with a simple, lightweight recorder suspended 8 m below the vehicle. In a field experiment using playback of bird recordings, we found that small variations in UAV altitude (it hovered at 28, 48, and 68 …
Hearing In The Juvenile Green Sea Turtle (Chelonia Mydas): A Comparison Of Underwater And Aerial Hearing Using Auditory Evoked Potentials, Wendy Dow Piniak, David A. Mann, Craig A. Harms, T. Todd Jones, Scott A. Eckert
Hearing In The Juvenile Green Sea Turtle (Chelonia Mydas): A Comparison Of Underwater And Aerial Hearing Using Auditory Evoked Potentials, Wendy Dow Piniak, David A. Mann, Craig A. Harms, T. Todd Jones, Scott A. Eckert
Environmental Studies Faculty Publications
Sea turtles spend much of their life in aquatic environments, but critical portions of their life cycle, such as nesting and hatching, occur in terrestrial environments, suggesting that it may be important for them to detect sounds in both air and water. In this study we compared underwater and aerial hearing sensitivities in five juvenile green sea turtles (Chelonia mydas) by measuring auditory evoked potential responses to tone pip stimuli. Green sea turtles detected acoustic stimuli in both media, responding to underwater stimuli between 50 and 1600 Hz and aerial stimuli between 50 and 800 Hz, with maximum …