Northern Flicker Range - CWHR B307 [ds1553]

<div style='text-align:Left;'><div><div><p style='margin:0 0 14 0;'><span><span>Vector datasets of CWHR range maps are one component of California Wildlife Habitat Relationships (CWHR), a comprehensive information system and predictive model for California's wildlife. The CWHR System was developed to support habitat conservation and management, land use planning, impact assessment, education, and research involving terrestrial vertebrates in California. CWHR contains information on life history, management status, geographic distribution, and habitat relationships for wildlife species known to occur regularly in California. Range maps represent the maximum, current geographic extent of each species within California. They were originally delineated at a scale of 1:5,000,000 by species-level experts and have gradually been revised at a scale of 1:1,000,000. For more information about CWHR, visit the CWHR webpage (</span><a href='https://www.wildlife.ca.gov/Data/CWHR' style='text-decoration:underline;' rel='nofollow ugc'><span>https://www.wildlife.ca.gov/Data/CWHR</span></a><span>). The webpage provides links to download CWHR data and user documents such as a look up table of available range maps including species code, species name, and range map revision history; a full set of CWHR GIS data; .pdf files of each range map or species life history accounts; and a User Guide.</span></span></p></div></div></div>

加州野生动物栖息地关联系统（California Wildlife Habitat Relationships，CWHR）是一套面向加州野生动物的综合性信息系统与预测模型，而CWHR分布范围矢量数据集正是其组成部分之一。该系统的开发初衷是为加州陆生脊椎动物相关的栖息地保护与管理、土地利用规划、影响评估、科普教育及科学研究提供支撑。CWHR收录了加州已知常规栖息的野生动物物种的生活史、管理现状、地理分布以及栖息地关联等信息。分布范围图展示了各物种在加州境内当前的最大地理分布范围。该类地图最初由各物种领域专家以1:500万的比例尺进行描绘，后续逐步以1:100万的比例尺完成修订更新。如需了解CWHR的更多信息，请访问其官方网页：https://www.wildlife.ca.gov/Data/CWHR。该网页提供了CWHR数据集与用户文档的下载链接，其中包括：现有分布范围图的查找表（涵盖物种代码、物种名称及分布范围图修订历史）、完整的CWHR地理信息系统（Geographic Information System，GIS）数据集、各分布范围图或物种生活史说明的PDF文件，以及一份用户指南。