This Demonstration shows the predicted probability of the presence of bats by low-frequency (less than 35 kHz) bat calls at Dillon Wind Energy Facility, Riverside County, California, USA. The probability ( axis) is a function of night within the time period (February 16, 2008 to May 17, 2008; axis) as well as meteorologic variables. You can observe the impact on presence probability as a function of wind speed (m/s), wind direction (degrees, 270° is west), temperature (° C), and moon phase (as a proportion).
Snapshot 1: evaluated at mean meteorologic values for time period
Snapshot 2: lowest temperature and lowest wind speed for time period
Snapshot 3: mean meteorologic values for time period, but full moon
From a manuscript in review: T. J. Weller and J. A. Baldwin, Using Echolocation Monitoring to Model Bat Occupancy and Inform Mitigations at Wind Energy Facilities. For more information, contact firstname.lastname@example.org.