A random encounter model for estimating bat abundances · PDF fileA random encounter model for...
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Transcript of A random encounter model for estimating bat abundances · PDF fileA random encounter model for...
A random encounter model forestimating bat abundances
Tim C.D. Lucas@timcdlucas
CoMPLEX, GEEUniversity College London
22-03-2013 #BritBats
Are detections Poisson?
100% 50% 5% 2%
Bat
spe
rKM
2
01
23
45
6
Percent of Ukraine P. kuhlii sample size
Estimate and theoretical CIBootstrap mean and CI
Required parameters
Species Eptesicus serotinus
Call intensity 128dBHalf amplitude angle 36◦
Flight speed 13.2ms−1
Call frequency 26.94kHz
Bat detector
SensitivityAngle of operation
Required parameters
Species Eptesicus serotinus
Call intensity 128dBHalf amplitude angle 36◦
Flight speed 13.2ms−1
Call frequency 26.94kHz
Bat detector
SensitivityAngle of operation
Required parameters
Species Eptesicus serotinus
Call intensity 128dBHalf amplitude angle 36◦
Flight speed 13.2ms−1
Call frequency 26.94kHz
Bat detector
SensitivityAngle of operation