CPW Black-tailed Prairie Dog Shapefile Download

Updated December, 2025 BTPrairieDogOverallRange is an ESRI shapefile encompassing the observed range of a population of Black-tailed Prairie Dog's in Colorado. BTPrairieDogColonyPotentialOccurrence is an ESRI shapefile depicting the probability of black-tailed prairie dog colonies occurring within the Overall Range within Colorado. CPW staff delineated and categorized these areas of potential occurrence based on the results of a 2020 rangewide survey (see CPW Black-tailed Prairie Dog 2020 Monitoring Report.) Colony Potential Occurrence ranked as: H - High Colony Potential Occurrence. Survey indicated a large number of colonies and/or individual colonies of substantially larger size. These areas have a higher likelihood of containing a larger number of colonies and/or large individual colonies. M - Medium Colony Potential Occurrence. Survey indicated a moderate number of colonies of small to intermediate size. These areas have a medium likelihood of containing colonies of small to intermediate size. L - Low Colony Potential Occurrence. Survey indicated a low number of colonies of small to intermediate size. These areas have a lower likelihood of containing colonies of small to intermediate size. This information was derived from Colorado Parks and Wildlife field personnel. Data was captured by digitizing through a SmartBoard Interactive Whiteboard using topographic maps and NAIP imagery at various scales (Cowardin, M., M. Flenner. March 2003. Maximizing Mapping Resources. GeoWorld 16(3):32-35). These data are updated on a four year rotation with one of the four Colorado Parks and Wildlife Regions updated each year. These data are not updated on a statewide level annually.2025年12月更新的BTPrairieDogOverallRange为ESRI形状文件（ESRI Shapefile），涵盖科罗拉多州境内黑尾草原犬鼠（Black-tailed Prairie Dog）种群的已知分布范围。BTPrairieDogColonyPotentialOccurrence同样为ESRI形状文件，用于展示科罗拉多州境内上述整体分布范围内黑尾草原犬鼠群落的潜在发生概率。 科罗拉多公园与野生动物部（Colorado Parks and Wildlife，简称CPW）的工作人员依据2020年全范围调查结果（详见《CPW 2020年黑尾草原犬鼠监测报告》），对上述潜在发生区域进行了勾画与分类。 群落潜在发生等级划分为三级： H级：高群落潜在发生概率。调查结果显示该区域存在大量群落，或单个群落规模显著更大，此类区域包含大量群落或大型单个群落的可能性更高。 M级：中群落潜在发生概率。调查结果显示该区域存在中等数量的中小型群落，此类区域包含中小型群落的概率中等。 L级：低群落潜在发生概率。调查结果显示该区域存在少量中小型群落，此类区域包含中小型群落的可能性较低。 本数据集的信息源自科罗拉多公园与野生动物部的野外工作人员。数据通过借助智能交互白板（SmartBoard Interactive Whiteboard），结合不同比例尺的地形图与NAIP影像进行数字化采集所得（引用文献：Cowardin, M., M. Flenner. 2003年3月. 《最大化制图资源》. 《GeoWorld》第16卷第3期：32-35）。 该数据集采用四年轮换更新机制，每年更新科罗拉多公园与野生动物部下四个区域中的一个区域的数据，而非每年对全州范围的数据进行统一更新。