Barred Owl Observations by PLSS Section [ds2873]

This public dataset is a summary of the information contained in the Barred Owl Observations Database (BDOWDB, [ds8], secured). The BDOWDB provides point locations for barred owls, Strix hybrids, and unknown Strix. It is a secured layer because it includes references to sensitive spotted owl locations. This summary layer provides all of the PLSS Sections in which barred owls have been reported to CDFW and the first and last years that owls were reported in each section. Inquiries regarding this layer or the BDOWDB can be directed to the database manager. Most of the barred owl data reported to CDFW was collected incidentally during spotted owl surveys conducted on private and government timberlands; therefore, it may not capture the full extent of the current barred owl range in California. Additional data sources include citizen science applications such as eBird and iNaturalist and only verifiable observations are used. Barred owl presence has been attributed to northern spotted owl (Strix occidentalis caurina) population declines and threaten California spotted owls (Strix occidentalis occidentalis). Additional information on barred owls in California and submitting data can be found on CDFW's Barred Owl Threat webpage: https://wildlife.ca.gov/Conservation/Birds/Barred-Owl-Threat.本公开数据集为横斑林鸮（Barred Owl）观测数据库（Barred Owl Observations Database, BDOWDB，编号ds8，受权限管控）所收录信息的汇总。该数据库收录了横斑林鸮、林鸮属（Strix）杂交个体及未知林鸮属物种的点位坐标。因其包含敏感的斑林鸮（Spotted Owl）点位信息，该数据库属于权限管控图层。本汇总图层涵盖了所有向加州鱼类与野生动物部（California Department of Fish and Wildlife, CDFW）上报过横斑林鸮观测记录的公共土地测量系统（Public Land Survey System, PLSS）地块，以及各地块内首次和末次记录到该类鸮类的年份。若需咨询该汇总图层或BDOWDB相关事宜，请联系数据库管理员。大部分向CDFW上报的横斑林鸮观测数据，是在针对私有及国有林地开展的斑林鸮调查中附带收集的，因此该数据集可能未完整覆盖当前加州境内横斑林鸮的分布范围。额外的数据来源包括eBird、iNaturalist等公民科学平台，仅收录经过验证的观测记录。横斑林鸮的存在已被证实会导致北方斑林鸮（Northern Spotted Owl）种群数量下降，并对加州斑林鸮（California Spotted Owl）构成生存威胁。如需了解更多加州横斑林鸮相关信息或提交观测数据，请访问CDFW的横斑林鸮威胁专题网页：https://wildlife.ca.gov/Conservation/Birds/Barred-Owl-Threat。