Marten site covariates, occupancy models

Two site covariates used for occupancy modeling. each row corresponds to 1 of 238 detection stations: "Early" is a binary variable indicating whether a station was active during early winter (Jan. & Feb.), "MNEVC" corresponds to the z-standardized proportion of existing Tree vegetation cover within a 1km buffer surrounding the detection station location.本数据集包含用于占用模型（Occupancy modeling）的2项场地协变量（site covariates）。每一行对应238个检测站点（detection stations）中的1个：其中"Early"为二元变量（binary variable），用于标识该检测站点是否在初冬（1月与2月）期间处于激活状态；"MNEVC"为该检测站点周边1千米缓冲区内现有树木植被覆盖比例的Z标准化值。