Estimating density of mountain hares using distance sampling: a comparison of daylight visual surveys, night-time thermal imaging and camera traps
Cite this dataset
Bedson, Carlos (2021). Estimating density of mountain hares using distance sampling: a comparison of daylight visual surveys, night-time thermal imaging and camera traps [Dataset]. Dryad. https://doi.org/10.5061/dryad.3r2280gg0
Abstract
Methods
Please refer to the manuscript for more information. The data has been prepared for loading in to software distance.
Usage notes
META DATA DESCRIPTIONS
Data are prepared ready for loading in to Software Distance.
_____DAYLIGHT VISUAL SAMPLING_____
STUDY AREA = HOLME MOSS for all sites
SITE = Sites within the study, numbered 1 through 6 as per the manuscript.
AREA KM^2 = 8.17KM^2 per site square which sums to 49 KM^2 for the whole area of Holme Moss.
LINE_LENGTH _KM = Per site what distance was walked in kilometres.
PERP_DISTANCE_M = Perpendicular distance to the transect line in metres.
CLUSTER_SIZE = How many mountain hares were observed.
_____NIGHT-TIME THERMAL IMAGING_____
STUDY AREA = HOLME MOSS for all sites
SITE = Sites within the study, numbered 1 through 6 as per the manuscript.
AREA KM^2 = 8.17KM^2 per site square which sums to 49 KM^2 for the whole area of Holme Moss.
OBSERVATION POINT = Unique ID for each vantage point. Some of these received multiple visits so appear several times.
SURVEY_EFFORT = 1 per vantage point.
RADIAL_DISTANCE_M = Radial distance to the mountain hare detection in metres.
CLUSTER_SIZE = How many mountain hares were observed.
_____CAMERA TRAPS_____
STUDY AREA = HOLME MOSS for all sites
SITE = Sites within the study, numbered 1 through 6 as per the manuscript.
AREA KM^2 = 8.17KM^2 per site square which sums to 49KM^2 for the whole area of Holme Moss.
CAM_ID = Unique ID for each camera trap. These are "point transect labels" for software distance.
SURVEY_EFFORT_SECONDS = Expressed with "1k" i.e. one second is the effort unit. The value shown is the sum of the effort units for each individual camera i.e. the total number of seconds the camera was deployed for.
RADIAL_DISTANCE_M = Radial distance to the mountain hare detection in metres.
CLUSTER_SIZE = How many mountain hares were observed.
Funding
People's Trust for Endangered Species
Hare Preservation Trust
Penny Anderson Associates
Queen's University Belfast
British Mountaineering Council
Action for Hares South West