CPW Gunnison's Sage Grouse Shapefile Download

Updated December, 2025 BROOD AREA: Areas supporting Gunnison's sage grouse broods. This generally includes wet areas such as meadows, springs, ponds and streams which all function as important brood rearing sites. To be mapped as a 200m (.124 mile) buffer zone around the edges of such wet sites. HISTORIC HABITAT: Areas where viable populations have not occurred in five years or more. OVERALL RANGE: An area which encompasses all mapped seasonal activity areas within the observed range of a population of Gunnison's sage grouse. PRODUCTION AREA: An area that would include the majority of important Gunnison's sage grouse nesting habitat. Mapped as a buffer zone of four miles around an active lek. As of 9/18/2016 these buffer zones are no longer clipped to GunnSageGrouseOverallRange. SEVERE WINTER: That part of the winter range where 90 percent of the individuals are located when annual snowpack is at its maximum and/or temperatures are at a minimum in the two worst winters out of ten. The winters of 1983-84, or 96-97 are good examples. WINTER RANGE: Observed winter range. OCCUPIED HABITAT: Gunnison sage grouse GIS data set identifying occupied habitats in Colorado. Areas of suitable habitat known to be used by sage-grouse within the last 10 years from the date of mapping. Areas of suitable habitat contiguous with areas of known use, which do not have effective barriers to sage-grouse movement from known use areas, are mapped as occupied habitat unless specific information exists that documents the lack of sage-grouse use. Mapped from any combination of telemetry locations, sightings of sage grouse or sage grouse sign, local biological expertise, GIS analysis, or other data sources. 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 **育雏区（Brood Area）**：支持Gunnison艾草松鸡（Gunnison's Sage Grouse）育雏的区域。此类区域通常涵盖草甸、泉眼、池塘与溪流等湿地，均为重要的育雏场所。需以此类湿地周边200米（0.124英里）的缓冲区作为制图范围。 **历史栖息地（Historic Habitat）**：近五年及以上未出现可存活种群的区域。 **整体分布区（Overall Range）**：涵盖某一Gunnison艾草松鸡种群观测范围内所有已制图的季节性活动区域的范围。 **繁殖区（Production Area）**：涵盖绝大多数重要的Gunnison艾草松鸡筑巢栖息地的区域。以活跃求偶场（lek）周边4英里的缓冲区作为制图范围。截至2016年9月18日，此类缓冲区不再受GunnSageGrouseOverallRange的限制。 **极端冬季生境（Severe Winter）**：当十年内两个最严酷冬季的积雪量达到峰值、或气温降至最低时，90%个体所处的冬季范围区域。1983-1984年、1996-1997年的冬季即为典型案例。 **冬季分布区（Winter Range）**：已观测到的冬季活动范围。 **已占用栖息地（Occupied Habitat）**：科罗拉多州境内识别出已被占用栖息地的Gunnison艾草松鸡地理信息系统（GIS）数据集。指制图当日起近十年内，已知被艾草松鸡利用的适宜栖息地区域；以及与已知使用区域相连、无阻碍艾草松鸡移动的有效屏障的适宜栖息地区域，除非有明确信息证明该区域未被艾草松鸡使用，否则均划入已占用栖息地范围。 本数据由科罗拉多州公园与野生动物管理局野外工作人员采集获取。通过SmartBoard交互式白板结合不同比例尺的地形图与NAIP影像完成数字化采集（Cowardin, M., M. Flenner. 2003年3月. 《最大化制图资源》. 《GeoWorld》第16卷第3期：32-35）。本数据集每四年轮换更新一次，每年更新科罗拉多州公园与野生动物管理局下辖的四个区域中的一个，不会每年在全州范围内进行更新。