carcassDistance {windAC} | R Documentation |
Carcass distance example data set
Description
Example data set of carcass distance found during searches under wind turbines.
Usage
data(carcassDistance)
Format
A data frame with 56 rows and 6 variables:
- season
The season in which that carcass was found.
- plotType
The plot type (either FULL or RP) that was being searched when the carcass was found.
- proportionTurbineType
The proportion of turbines that have that plot type. For
plotType=FULL
the value is 0.1 and 0.9 forplotType=RP
.
- distanceFromTurbine
Meters, carcass distance from the turbine.
- compassBearingDegree
Degrees, the compass bearing from the turbine to the carcass location. Zero degrees is north, 90 degrees is east, etc.
- probabilityDetection
The summarized probability of detection from the bias trial information.
Details
The fictitious wind farm has 100 turbines. For 90 turbines the search plot consists of the turbine pad and the road out to 100 meters (RP = road and pad). The remaining 10 turbines had full plots (FULL) that are circular with a radius of 100 meters. The wind farm was searched during two seasons: Spring and Fall.
The example carcasses are all the same size class (bats).
Bias trials are also done to account for searcher efficiency and carcass removal. These results are summarized as a probability of detection in the data set.
References
https://tethys.pnnl.gov/publications/us-fish-wildlife-service-land-based-wind-energy-guidelines