Count and detection-nondetection survey data of barred owls (Strix varia) in historical breeding territories of Northern Spotted Owls (Strix occidentalis caurina) in the Oregon Coast Ranges, 1995-2016

This dataset contains count and detection-nondetection data of Barred Owls from 106 historical breeding territories of Northern Spotted Owl territories (i.e. sites) in the Oregon Coast Ranges from 1995 to 2016. Data collected from 1995 to 2014 are partitioned into 2-week periods from 1 March – 31 August each year, totaling 12 possible sampling periods per year. Data collected from 2015 and 2016 are partitioned into 2-month periods from 1 March – 31 August, totaling 3 possible sampling periods each year. This dataset also describes the proportion of total area surveyed per site per sampling period in 2015 and 2016, as well as the proportion of each site with older coniferous forest in each year (1995 – 2016).本数据集涵盖了1995年至2016年间，俄勒冈海岸山脉（Oregon Coast Ranges）内106处北方斑点鸮（Northern Spotted Owl）历史繁殖领地（即样点（sites））的横斑林鸮（Barred Owl）计数与探测-非探测数据（detection-nondetection data）。1995年至2014年采集的数据按每年3月1日至8月31日的2周周期划分，每年共计12个可选采样周期。2015年与2016年采集的数据则按每年3月1日至8月31日的2个月周期划分，每年共计3个可选采样周期。本数据集同时包含2015年及2016年各采样周期内，单个样点的调查面积占该样点总面积的比例，以及1995年至2016年各年份中，单个样点内老龄针叶林（older coniferous forest）的占比。