CPW Greater Sage Grouse Shapefile Download

Updated December, 2025 BROOD AREA: Areas supporting 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 sage grouse. PRODUCTION AREA: An area that would include the majority of important sage grouse nesting habitat. Mapped as a buffer zone of two miles around an active lek. 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. PRIORITY AND GENERAL HABITAT Summary The priority habitat map and data were developed as part of the BLM National Planning Strategy for Greater sage-grouse. These data provide a biological tool for planning in sage-grouse habitats. These maps depict Priority and General Habitats within occupied range in Colorado. In February 2016, the Associated Governments of Northwest Colorado (AGNC) hired a consultant (Olsson) to help further refine CPW’s greater sage-grouse habitat maps in Northwest Colorado. The Olsson consultant team, have utilized CPW’s contemporary and rigorous habitat models and developed their own to produce revised PHMA and GHMA habitat data. These spatial datasets (i.e., habitat maps) are specifically designed to meet the management intent of the ARMPA and have been produced for formal submittal to the BLM for incorporation into Northwest Colorado Land and Resource Management Plans. LINKAGES This dataset identifies linkage areas between sage-grouse populations across GrSG range in Colorado. It is assumed the habitat linkages will allow for movement between populations and will decrease the probability of extinction of the species by stabilizing population dynamics. These linkages should be considered only as potential areas for movements between populations. The linkage dataset was created by mapping efforts of the CPW biologists for the statewide conservation plan in 2005, and further refined in early 2012. The linkages were delineated based on a selection of vegetation classes in the Colorado Basin-wide dataset. Habitat within linkages is composed of a mosaic of contrasting land forms, landcover types, and land uses. They are a heterogeneous landscape, within the historical range of GrSG, composed of isolated patches of landcover types frequently used by sage-grouse. Vegetation classes used contain current or historic sagebrush communities (e.g., piñon-juniper -sagebrush mix). Therefore, linkages are comprised of a non-contiguous and patchy mix of vegetation classes. 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） 支持艾草松鸡（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，均为重要的育雏栖息场所。需在上述湿地周边划定200米（0.124英里）的缓冲区作为其制图范围。 ## 历史栖息地（Historic Habitat） 连续五年及以上未出现可存活种群的区域。 ## 整体分布区（Overall Range） 涵盖观测到的艾草松鸡种群所有已制图的季节性活动区域的范围。 ## 繁殖区（Production Area） 涵盖多数重要艾草松鸡筑巢栖息地的区域，以活跃求偶场（lek）为中心，划定2英里的缓冲区作为其制图范围。 ## 极端冬季栖息地（Severe Winter） 在十年中最恶劣的两个冬季里，当年度积雪量达到峰值、或气温降至最低时，90%的个体所在的冬季活动区域。例如1983-1984年与1996-1997年的冬季。 ## 冬季活动区（Winter Range） 实际观测到的冬季栖息范围。 ## 优先级与一般栖息地总结 优先级栖息地地图与数据是美国土地管理局（BLM）大艾草松鸡（Greater sage-grouse）国家规划战略的组成部分。此类数据可为艾草松鸡栖息地的规划工作提供生物学支撑工具。这些地图展示了科罗拉多州已被占据的分布区内的优先级与一般栖息地。 2016年2月，科罗拉多州西北部联合政府（AGNC）聘请奥尔森咨询团队，协助进一步优化科罗拉多州西北部的科罗拉多公园与野生动物局（CPW）大艾草松鸡栖息地地图。奥尔森咨询团队采用了CPW当前的严谨栖息地模型，并开发了自有模型，以此生成了修订后的优先级栖息地管理区（Priority Habitat Management Area, PHMA）与一般栖息地管理区（General Habitat Management Area, GHMA）的栖息地数据。此类空间数据集（即栖息地地图）专为契合ARMPA的管理意图而设计，已正式提交给BLM，以便纳入科罗拉多州西北部的土地与资源管理计划。 ## 连接区域（Linkages） 本数据集识别了科罗拉多州内大艾草松鸡（Greater Sage-Grouse, GrSG）分布区内各松鸡种群之间的连接区域。假设此类栖息地连接区域可支持种群间的个体移动，并通过稳定种群动态降低该物种的灭绝概率。此类连接区域仅可被视为种群间移动的潜在区域。 该连接区域数据集由CPW生物学家于2005年为全州保护计划开展的制图工作所创建，并于2012年初进行了进一步优化。连接区域的划定基于科罗拉多盆地全域数据集中选定的植被类型分类。连接区域内的栖息地由多种异质的土地形态、土地覆盖类型与土地利用方式镶嵌组成。该区域属于异质性景观，处于大艾草松鸡的历史分布范围内，由艾草松鸡频繁使用的孤立土地覆盖类型斑块构成。所选用的植被类型分类包含当前或历史上的蒿属植物群落（例如矮松-桧木-蒿属植物混合群落）。因此，连接区域由不连续、呈斑块状分布的植被类型混合构成。 此类信息源自CPW的野外工作人员。数据通过智能交互白板（SmartBoard Interactive Whiteboard）对不同比例尺的地形图与美国农业部农业航拍计划（National Agriculture Imagery Program, NAIP）影像进行数字化采集获取（引用来源：Cowardin, M., M. Flenner. 2003年3月. 《最大化制图资源》. 《地理世界》16(3):32-35）。此类数据采用四年轮换更新机制，每年更新CPW四个区域中的一个区域的数据，不会每年对全州范围的数据进行更新。