AllMammalPhotos_archive

This file contains a row for each photo image recorded on camera traps during this study. The study was conducted during Summer and Fall months of 2013 and 2014 on the grounds of the Smithsonian Conservation Biology Institute in Front Royal, Virginia USA. All records of birds and humans have been removed. Cameras were established in pairs with a treatment camera (set up with a log in view, or on a game trail) and a nearby random location. End Date refers to the date after which at last one camera in the pair stopped functioning. All photo records from BOTH cameras in the pair taken after this date were removed. The grounds of the study area were divided into grids (500m by 500m) and grids not containing forest were not used. Grid codes are included with each image as is the UTM coordinate of the camera station (UTM Zone 17). "UnderCat" is a three level descriptor for level of understory vegetation at the site. "LogD" refers to log diameter in centimeters, and "TrailQ" is a scale of trail quality, with 1 being the highest quality. "PairDist_m" is the distance between the two cameras in the pair, in meters. All other details are explained in the manuscript. NOTE: Photograph capture times for deployment SCBI2013.4T are 7 hrs ahead of the actual photo time. The Date and Time listed for photos from Deployment SCBI2013.37C are incorrect and could be rectified. Photos all occurred between the deployment and pull dates, but times and actual dates are incorrect for each photo

Percent increase or reduction in detection probability due to camera placement (trail or log).

<p>Percent increase or reduction in detection probability due to camera placement (trail or log).</p

Sample-based species accumulation curve from 24 paired cameras, run for an average of 25.6 camera nights, with one camera in each pair oriented toward a trail feature, and the other at a nearby (mean = 23.5 m) random location.

<p>Shaded areas represent the 95% confidence intervals, with darker shaded areas representing confidence interval overlap between the two scenarios. Black dots indicate the actual sampling effort of this study. The vertical line with label indicates the point at which the confidence intervals of the feature and control groups overlap.</p

Mean (not overall) capture rates (CR) and events (Evts.) for all 19 species photographed across 54 paired camera stations.

<p>Mean (not overall) capture rates (CR) and events (Evts.) for all 19 species photographed across 54 paired camera stations.</p

Sample-based species accumulation curve from 30 paired cameras, run for an average of 25.4 camera nights, with one camera in each pair oriented toward a log feature, and the other at a nearby (mean = 15.1 m) random location.

<p>Shaded areas represent the 95% confidence intervals, with darker shaded areas representing confidence interval overlap between the two scenarios. Black dots indicate the actual sampling effort of this study. The vertical line with label indicates the point at which the confidence intervals of the feature and control groups overlap.</p

Covariates used in multi-method occupancy modeling of camera trap detections.

<p>Covariates used in multi-method occupancy modeling of camera trap detections.</p

Model results showing the effect of setting a camera on a feature (game trail or log) based on paired comparisons with nearby random locations.

<p>Model results showing the effect of setting a camera on a feature (game trail or log) based on paired comparisons with nearby random locations.</p