Arid
DOI10.3390/rs9050458
Airborne LiDAR and Aerial Imagery to Assess Potential Burrow Locations for the Desert Tortoise (Gopherus agassizii)
Young, Michael H.; Andrews, John H.; Caldwell, Todd G.; Saylam, Kutalmis
通讯作者Young, Michael H.
来源期刊REMOTE SENSING
ISSN2072-4292
出版年2017
卷号9期号:5
英文摘要

The Southwestern United States desert serves as the host for several threatened and endangered species, one of which is the desert tortoise (Gopherus agassizii). The goal of this study was to develop a fine-scale, remote-sensing-based approach that indicates favorable burrow locations for G. agassizii in the Boulder City (Nevada) Conservation Easement area (35,500 ha). This was done by analyzing airborne LiDAR data (5-7 points/m(2)) and color imagery (four bands, 0.15-m resolution) and determining the percent vegetation cover; shrub height and area; Normalized Difference Vegetation Index (NDVI); and several geomorphic characteristics including slope, azimuth, and roughness. Other field data used herein include estimates of canopy area and species richness using 1271 line transects, and shrub height and canopy area using plant-specific measurements of similar to 200 plants. Larrea tridentata and Ambrosia dumosa shrubs were identified using an algorithm that obtained an optimum combination of NDVI and average reflectance of the four bands (IR, R, G, and B) from pixels in each image. The results, which identified more than 65 million shrubs across the study area, indicate that percent vegetation cover from aerial imagery across the site (13.92%) compared favorably (14.52%) to the estimate obtained from line transects, though the LiDAR method yielded shrub heights approximately 60% those of measured shrub heights. Landscape and plant properties were combined with known locations of tortoise burrows, as visually observed in 2014. Masks were created using roughness coefficient, slope percent, azimuth of burrow openings, elevation, and percent vegetation cover to isolate areas more likely to host burrows. Combined, the masks isolated 55% of the total survey area, which will help target future field surveys. Overall, the approach provides areas where tortoise burrows are more likely to be found, though additional ecological data would help refine the overall method.


英文关键词arid lands LiDAR vegetation characteristics burrows Gopherus agassizii
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000402573700061
WOS关键词MOJAVE DESERT ; HABITAT
WOS类目Remote Sensing
WOS研究方向Remote Sensing
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/201941
作者单位Univ Texas Austin, Jackson Sch Geosci, Bur Econ Geol, Austin, TX 78712 USA
推荐引用方式
GB/T 7714
Young, Michael H.,Andrews, John H.,Caldwell, Todd G.,et al. Airborne LiDAR and Aerial Imagery to Assess Potential Burrow Locations for the Desert Tortoise (Gopherus agassizii)[J],2017,9(5).
APA Young, Michael H.,Andrews, John H.,Caldwell, Todd G.,&Saylam, Kutalmis.(2017).Airborne LiDAR and Aerial Imagery to Assess Potential Burrow Locations for the Desert Tortoise (Gopherus agassizii).REMOTE SENSING,9(5).
MLA Young, Michael H.,et al."Airborne LiDAR and Aerial Imagery to Assess Potential Burrow Locations for the Desert Tortoise (Gopherus agassizii)".REMOTE SENSING 9.5(2017).
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Young, Michael H.]的文章
[Andrews, John H.]的文章
[Caldwell, Todd G.]的文章
百度学术
百度学术中相似的文章
[Young, Michael H.]的文章
[Andrews, John H.]的文章
[Caldwell, Todd G.]的文章
必应学术
必应学术中相似的文章
[Young, Michael H.]的文章
[Andrews, John H.]的文章
[Caldwell, Todd G.]的文章
相关权益政策
暂无数据
收藏/分享

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。