Observed distances from camera traps to Maxwell's duikers at times of peak activity

Filmed Maxwell's duikers were assigned to distance intervals; recorded distances are the midpoints of the intervals. "Sample.Label" references the trap location. "Effort" is temporal effort, i.e. the number of 2-second time-steps over which the camera operated. "multiplier" describes spatial effort, as the proportion of a circle covered by the angle of view of the camera. The data is formatted as a "flatfile" suitable for use with distance sampling software including Distance and associated R packages. This file includes only observations recorded at times of peak activity.被拍摄的麦氏小羚羊（Maxwell's duikers）被划分至各距离区间，所记录的距离为对应区间的中点值。"样本标签（Sample.Label）"用于指代诱捕位点。"采样投入（Effort）"为时间维度的采样投入，即相机运行时长内包含的2秒时间步总数量。"空间乘数（multiplier）"用于描述空间维度的采样投入，具体指相机视场角覆盖的以相机为中心的圆形区域占完整圆形的比例。该数据集采用"平面文件（flatfile）"格式，可适配包括Distance软件及相关R包在内的各类距离采样工具。此文件仅收录了物种活动高峰期记录的观测数据。