CPW Olive-backed Pocket Mouse Shapefile Download

Updated December, 2025 OliveBackedPocketMouseOverallRange is an ESRI shapefile showing the Overall Range for Olive-backed Pocket Mouse (Perognathus fasciatus) in Colorado. Overall Range is defined as the area which encompasses the probable range of Olive-backed Pocket Mouse in Colorado. Olive-backed Pocket Mouse is primarily associated with grassland in arid and semi-arid upland areas, usually with sparse vegetation and sometimes with scattered trees such as the aspen or cottonwood (Populus sp.) and plants such as the fringed sagebrush (Artemisia frigida). Its burrows are found in both sandy and clayey soils. This information was derived from field personnel. A variety of data capture techniques were used including drawing on mylar overlays at 1:50,000 scale USGS county mapsheets and implementation of the SmartBoard Interactive Whiteboard using stand-up, real-time digitizing at various scales (Cowardin, M., M. Flenner. March 2003. Maximinzing Mapping Resources. GeoWorld 16(3):32-35). Reference data included Mammals of Colorado and CPW Scientific Collection data. 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月更新的橄榄背囊鼠全域分布范围数据集（OliveBackedPocketMouseOverallRange）为ESRI形状文件（ESRI shapefile），展示了科罗拉多州境内橄榄背囊鼠（*Perognathus fasciatus*）的全域分布范围。全域分布范围的定义为涵盖该州内橄榄背囊鼠潜在分布范围的区域。橄榄背囊鼠主要栖息于干旱、半干旱高地的草原生境，植被通常较为稀疏，偶伴生有杨属（*Populus* sp.）植物（如颤杨、三角叶杨）及冷蒿（*Artemisia frigida*，又名fringed sagebrush）。该物种的洞穴见于砂质与黏质土壤中。本数据集信息源自野外调查人员。数据采集采用了多种技术手段，包括基于1:50000比例尺美国地质调查局（USGS）县幅地形图绘制聚酯薄膜（mylar）叠加图，以及使用智能交互白板（SmartBoard Interactive Whiteboard）开展多比例尺实地实时数字化工作（引自Cowardin, M., M. Flenner. 2003年3月. "Maximizing Mapping Resources". GeoWorld 16(3):32-35）。参考数据涵盖《科罗拉多州哺乳动物》及科罗拉多公园与野生动物局（CPW）科学馆藏数据。本数据集每四年进行一次全域更新，每年更新科罗拉多州四个公园与野生动物管理区中的一个，并非每年开展全州范围的更新。