ABSTRACT The California spotted owl (Strix occidentalis occidentalis) is the only spotted owl subspecies not listed as threatened or endangered under the United States Endangered Species Act despite petitions to list it as threatened. We conducted a meta‐analysis of population data for 4 populations in the southem Cascades and Sierra Nevada, California, USA, from 1990 to 2005 to assist a listing evaluation by the United States Fish and Wildlife Service. Our study areas (from N to S) were on the Lassen National Forest (LAS), Eldorado National Forest (ELD), Sierra National Forest (SIE), and Sequoia and Kings Canyon National Parks (SKC). These study areas represented a broad spectrum of habitat and management conditions in these mountain ranges.

中文翻译：

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内华达山脉，加利福尼亚的斑点猫头鹰的种群动态

摘要加利福尼亚斑点猫头鹰（Strix occidentalis occidentalis）是唯一未被《美国濒危物种法》列为受威胁或濒危物种的斑点猫头鹰亚种，尽管有请愿书将其列为受威胁物种。我们对1990年至2005年美国南部喀斯喀特山脉和内华达山脉的4个种群的种群数据进行了荟萃分析，以协助美国鱼类和野生动物服务局进行清单评估。我们的研究区域（从N到S）在拉森国家森林（LAS），埃尔多拉多国家森林（ELD），塞拉利昂国家森林（SIE）以及红杉和国王峡谷国家公园（SKC）上。这些研究区域代表了这些山脉中广泛的栖息地和管理条件。