CPW Pika Shapefile Download

Updated December, 2025 PikaOverallRange is an ESRI shapefile encompassing the observed and predicted range of a population of American Pika in Colorado. American Pika is primarily associated with talus and rockpiles near fields fringed by suitable vegetation in alpine and subalpine mountain areas. This information was derived from species experts. A variety of data capture techniques were used including implementation of the SmartBoard Interactive Whiteboard using stand-up, real-time digitizing at various scales (Cowardin, M., M. Flenner. March 2003. Maximizing Mapping Resources. GeoWorld 16(3):32-35). Various sources were referenced in developing these data including Mammals of Colorado; areas delineated by predictive modeling using various Colorado American Pika collection records, elevation ranges, slope ranges, aspect ranges, and SWReGAP vegetation classes; 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。本数据集为PikaOverallRange，是ESRI形状文件（ESRI shapefile），涵盖科罗拉多州境内美国鼠兔（American Pika）种群的观测分布范围与预测分布范围。美国鼠兔主要栖息于高山及亚高山区域内、周边带有适宜植被的开阔地带附近的岩屑坡与岩堆生境中，该分布信息由物种专家提供。本次数据采集采用多种技术手段，其中包括依托SmartBoard交互式白板（SmartBoard Interactive Whiteboard）开展不同比例尺下的实地实时数字化工作（参考文献：Cowardin, M., M. Flenner. 2003年3月. 《最大化绘图资源》. 《GeoWorld》第16卷第3期：32-35）。本数据集的编制参考了多类数据源，包括《科罗拉多州兽类》专著；基于科罗拉多州美国鼠兔多种采集记录、海拔范围、坡度范围、坡向范围以及SWReGAP植被分类开展预测建模所划定的区域；以及科罗拉多公园与野生动物局（CPW）科学馆藏数据。本数据集采用四年轮换更新机制：每年更新科罗拉多州四个公园与野生动物管理区域中的一个，而非每年对全州范围的数据进行更新。