Key habitat for male Strix nebulosa (Great Gray Owls) varies across the diurnal cycle and reflects sex-specific role, 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 diurnal periods (dawn, day, dusk, and night). To address knowledge gaps related to nocturnal habitat, we also evaluated finer-scale, microhabitat selection by male owls at night. Here, we include both the remotely-sensed habitat data and on-the-ground microhabitat data associated with owl locations.  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 context-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 those with presence of primary prey..., 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.  Habitat attributes were derived from remotely-sensed environmental data and exracted to owl locations.  Available locations were generated within 95% Kernel Density Estimate (KDE) areas.  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....

我们利用GPS追踪与遥感环境数据，评估了19只成年雄性乌林鸮（Strix nebulosa，Great Gray Owl）在繁殖季的日间生境选择是否随昼夜时段（黎明、日间、黄昏、夜间）发生变化。为填补夜行性生境相关的研究空白，我们还分析了雄性鸮类夜间的精细化微生境选择。本数据集包含与鸮类定位点相关的遥感生境数据与实地微生境调查数据。

一般而言，乌林鸮会依托成熟森林筑巢，以草甸作为觅食场所。但在本研究中，鸮类在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情境依赖性。此外，鸮类在全天各个时段均会避开干燥草甸，这意味着湿润而非干旱的草甸才是其觅食的重要生境。鸮类还更偏好利于觅食的夜间微生境，例如存在主要猎物的生境……

本数据集包含2018-2021年于怀俄明州西北部收集的、经GPS标记的19只成年雄性乌林鸮繁殖季的使用点位与可用点位的相关生境数据。生境属性由遥感环境数据提取得到，并匹配至鸮类定位点。可用点位生成于每只鸮的95%核密度估计（Kernel Density Estimate, KDE）范围内。其中部分数据包含通过实地调查获取的微生境属性。这些采样点位采用分层随机抽样设计选取：我们共选取约30个夜间使用点位，且每只个体每晚最多仅选取一个点位。配对的可用点位则从对应个体的95% KDE范围内选取。

# 成年雄性乌林鸮（Strix nebulosa）繁殖季生境数据
https://doi.org/10.5061/dryad.1g1jwsv50

本数据集包含2018-2021年于怀俄明州西北部收集的、经GPS标记的19只成年雄性乌林鸮繁殖季的使用点位与可用点位的相关生境数据，该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：提取自鸮类定位点的遥感生境数据（文件名为`Male_GGOW_RemotelySensedHabitat.csv`），以及在鸮类夜间使用的部分点位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点位以及各鸮类家域范围内随机选取的可用点位的相关生境数据……