Variation in habitat selection by male Strix nebulosa (Great Gray Owls) across the diel cycle, data archive

We used GPS tracking and remotely-sensed environmental data to evaluate whether breeding-season habitat selection by adult male Strix nebulosa (Great Gray Owls) (n = 19) varied across diel periods (dawn, day, dusk, and night). We focused specifically on male owls because their breeding habitat selection remains largely unknown despite the critical role they play as food provisioners. To address knowledge gaps related to nocturnal habitat, we also evaluated finer-scale, microhabitat selection by male owls at night. Generally, S. nebulosa are associated with mature forests for nesting and meadows for foraging. Yet, in our study, owls avoided herbaceous wetlands during the day but strongly selected them at dawn, dusk, and at night, indicating time-dependent habitat selection. Moreover, owls avoided dry meadows at all times of the day, suggesting that wet rather than xeric meadows are important for foraging. Owls also preferred nighttime microhabitats that facilitated foraging, such as thos..., Associated habitat data for used and available locations for GPS-tagged, adult male Strix nebulosa (Great Gray Owls) (n = 19) during the breeding season in northwestern Wyoming between 2018-2021. Used locations were actual GPS locations for owls. Available locations were generated within 95% Kernel Density Estimate (KDE) areas.  Habitat attributes were derived from remotely-sensed environmental data and exracted to owl locations. A subset of these data include microhabitat attributes measured via on-the-ground surveys.  These sites were selected via a stratified random sampling design, in which we selected approximately 30 nighttime used locations, but no more than one location used per night per individual. Paired availale sites were selected from within 95% KDE areas., , # Adult male *Strix nebulosa* (Great Gray Owl) breeding-season habitat data [https://doi.org/10.5061/dryad.1g1jwsv50](https://doi.org/10.5061/dryad.1g1jwsv50) Associated habitat data for used and available locations for GPS-tagged, adult male *Strix nebulosa* (Great Gray Owls) (n = 19) during the breeding season in northwestern Wyoming between 2018-2021. The data were used to analyze breeding-season habitat selection by adult male *S. nebulosa*. ## Description of the data and file structure The data include two datasets: remotely-sensed habitat data extracted to the owl locations (Male_GGOW_RemotelySensedHabitat.csv), and on-the-ground microhabitat data collected at a subset of locations used by owls at night (Male_GGOW_Microhabitat.csv). ### 1) Male\_GGOW\_RemotelySensedHabitat.csv This file contains associated habitat data for sites used by adult male Strix nebulosa during the breeding season as well as randomly-selected available sites located within each owl's home range area....我们采用GPS追踪与遥感环境数据，评估了19只成年雄性乌林鸮（Great Gray Owls，学名*Strix nebulosa*）在繁殖季的生境选择是否随昼夜周期（黎明、日间、黄昏、夜间）发生变化。我们聚焦雄性乌林鸮，是因为尽管它们在食物供给中发挥关键作用，但其繁殖生境选择仍鲜为人知。为填补夜间生境相关的研究空白，我们还分析了雄性乌林鸮夜间更精细尺度的微生境选择。通常，乌林鸮会依托成熟森林筑巢、以草甸为觅食生境。但在本研究中，乌林鸮日间会避开草本湿地，却在黎明、黄昏与夜间强烈偏好此类生境，这表明其生境选择具有时间依赖性。此外，乌林鸮在全天任何时段均会避开干燥草甸，这说明湿润而非干旱草甸才是其觅食的重要生境。乌林鸮还偏好利于觅食的夜间微生境，例如…… 本数据集包含2018-2021年美国怀俄明州西北部繁殖季内，19只佩戴GPS追踪器的成年雄性乌林鸮的使用位点与可用位点的相关生境数据。其中，使用位点为猫头鹰实际的GPS定位位点；可用位点则生成于每只个体的95%核密度估计（Kernel Density Estimate, KDE）范围内。生境属性源自遥感环境数据，并被提取至猫头鹰的定位位点中。其中一部分数据包含通过实地调查获取的微生境属性。这些调查位点采用分层随机抽样设计选取：我们选取了约30个夜间使用位点，且每只个体每晚最多选取1个位点，配对的可用位点则从其95% KDE范围内选取。 # 成年雄性乌林鸮（Great Gray Owls，学名*Strix nebulosa*）繁殖季生境数据 [https://doi.org/10.5061/dryad.1g1jwsv50](https://doi.org/10.5061/dryad.1g1jwsv50) 本数据集包含2018-2021年美国怀俄明州西北部繁殖季内，19只佩戴GPS追踪器的成年雄性乌林鸮的使用位点与可用位点的相关生境数据，相关数据被用于分析成年雄性乌林鸮的繁殖季生境选择。 ## 数据与文件结构说明 本数据集包含两类数据：提取自猫头鹰定位位点的遥感生境数据（文件名为`Male_GGOW_RemotelySensedHabitat.csv`），以及在猫头鹰夜间使用的部分位点实地采集的微生境数据（文件名为`Male_GGOW_Microhabitat.csv`）。 ### 1) `Male_GGOW_RemotelySensedHabitat.csv` 该文件包含成年雄性乌林鸮繁殖季使用位点，以及各猫头鹰家域范围内随机选取的可用位点的相关生境数据……