CPW Lynx Shapefile Download

Recently, collaborators from the USFS, CPW, and University of Wyoming published a paper that describes a revised habitat mapping effort for Canada lynx in Colorado. The new map was built using recent GPS data on lynx in the state, contemporary analytical methods, and a host of new, updated covariate layers. The new map represents a significant reduction in mapped lynx habitat compared to older maps produced by CPW and USFS. However, we think it is the most accurate depiction yet of lynx habitat in the state, and it coincides nicely with the known distribution of lynx in Colorado. Hopefully it will serve to focus conservation efforts where they can be most effective. For management purposes, the GIS layer from the paper has been added to SDE and symbolized according to recommendations in the publication: Likely habitat includes polygons that captured 95% of withheld testing data and defines habitat that most likely supports breeding populations of Canada lynx. Core habitat includes polygons nested within Likely habitat that captured the innermost 50% of the withheld testing data, which delineates the highest quality habitat with the greatest probability of use - the best of the best. Unlikely habitat includes areas that fell outside the polygons that captured 95% of the withheld testing data and defines areas of poor habitat quality with low chance of sustained lynx occupancy. We suggest that land use comments focus on those areas that fall within the Likely or Core polygons. https://doi.org/10.1007/s10531-024-02978-8近日，美国林务局（USFS）、科罗拉多州公园与野生动物部（CPW）以及怀俄明大学的合作团队发表了一篇论文，阐述了科罗拉多州境内加拿大猞猁（Canada lynx）的修订栖息地制图工作。新版地图基于该州内猞猁的最新GPS追踪数据、当代分析方法以及多套全新更新的协变量图层构建而成。相较于CPW与USFS此前发布的旧版地图，新版地图划定的猞猁栖息地范围显著缩减。但我们认为，该地图是科罗拉多州境内迄今为止最为精准的猞猁栖息地刻画，且与该州已知的猞猁分布高度吻合。希望该地图能够助力保护资源精准投向最具成效的区域。 出于管理需求，论文中的地理信息系统（Geographic Information System, GIS）图层已被添加至空间数据引擎（Spatial Data Engine, SDE）中，并依据论文中的建议完成了符号化配置： - 潜在栖息地（Likely habitat）：指覆盖95%留存测试数据的多边形区域，代表最有可能支撑加拿大猞猁繁殖种群的栖息地。 - 核心栖息地（Core habitat）：指嵌套于潜在栖息地范围内、覆盖最内侧50%留存测试数据的多边形区域，划定了质量最高、被使用概率最大的栖息地——即优中之优。 - 非适宜栖息地（Unlikely habitat）：指未被覆盖95%留存测试数据的多边形区域以外的区域，代表栖息地质量较差、猞猁长期定居概率极低的区域。 我们建议土地利用相关意见应聚焦于潜在栖息地或核心栖息地范围内的区域。 https://doi.org/10.1007/s10531-024-02978-8