Artificial night light helps account for observer bias in citizen science monitoring of an expanding large mammal population

This dataset contains all of the values used in occupancy models comparing the observations of bears by citizen scientists in Minnesota. Data need to be read into program R and converted to an unmarkedFrame object within the R package 'unmarked' (Fiske & Chandler, 2011; vers.0.13-0). Fiske, I., & Chandler, R. (2011). unmarked: An R package for fitting hierarchical models of wildlife occurrence and abundance. Journal of Statistical Software, 43(1), 1–23. doi: 10.18637/jss.v043.i10

本数据集包含用于构建对比明尼苏达州公民科学家观测熊类所得数据的占用模型（occupancy model）所需的全部数值。
需将该数据导入R语言程序，并在R包'unmarked'（Fiske与Chandler，2011；版本0.13-0）中转换为unmarkedFrame对象。
Fiske I与Chandler R于2011年发表的论文《unmarked：用于拟合野生动物出现与多度层级模型的R包》，刊载于《统计软件学报》（Journal of Statistical Software）第43卷第1期，页码1–23，DOI：10.18637/jss.v043.i10