干旱区生态环境知识资源中心(Arid): Waterhole detection using a vegetation index in desert bighorn sheep (Ovis canadensis cremnobates) habitat

Arid

DOI	10.1371/journal.pone.0211202
	Waterhole detection using a vegetation index in desert bighorn sheep (Ovis canadensis cremnobates) habitat
	Gabriel Escobar-Flores, Jonathan 1; Sandoval, Sarahi 2; Valdez, Raul 3; Shahriary, Eahsan 4; Torres, Jorge 5; Alvarez-Cardenas, Sergio 6; Gallina-Tessaro, Patricia 6
通讯作者	Sandoval, Sarahi
来源期刊	PLOS ONE
ISSN	1932-6203
出版年	2019
卷号	14 期号:1
英文摘要	In arid ecosystems, desert bighorn sheep are dependent on natural waterholes, particularly in summer when forage is scarce and environmental temperatures are high. To detect waterholes in Sierra Santa Isabel, which is the largest area of desert bighorn sheep habitat in the state of Baja California, Mexico, we used the normalized difference vegetation index (NDVI) and normalized difference water index (NDWI) from Sentinel-2 satellite images. Waterhole detection was based on the premise that sites with greater water availability, where NDVI was higher, can be identified by their density of vegetation greenness. For the detected waterholes, we estimated the escape terrain (presence of cliffs or steep, rocky slopes) around each by the vector ruggedness measure to determine their potential use by desert bighorn sheep based on the animals' presence as documented by camera traps. We detected 14 waterholes with the NDVI of which 11 were known by land owners and 3 were unrecorded. Desert bighorn were not detected in waterholes with high values of escape terrain, i.e., flat areas. Waterhole detection by NDVI is a simple method, and with the assistance and knowledge of the inhabitants of the Sierra, it was possible to confirm the presence each waterhole in the field.
类型	Article
语种	英语
国家	Mexico ; USA
开放获取类型	Green Published, Green Submitted, gold
收录类别	SCI-E
WOS记录号	WOS:000456306400034
WOS关键词	BAJA-CALIFORNIA ; WILDLIFE ; ENVIRONMENTS ; POPULATION ; CLIMATE ; NDVI ; NDWI
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
来源机构	New Mexico State University
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218075
作者单位	1.Inst Politecn Nacl, Ctr Interdisciplinario Invest Desarrollo Integral, Unidad Durango, Durango, Mexico; 2.Inst Politecn Nacl, Ctr Interdisciplinario Invest Desarrollo Integral, Unidad Durango, CONACYT, Durango, Mexico; 3.New Mexico State Univ, Dept Fish Wildlife & Conservat Ecol, Las Cruces, NM 88003 USA; 4.Univ Texas El Paso, Environm Sci & Engn Program, El Paso, TX 79968 USA; 5.Ctr Invest Cient & Educ Super Ensenada, Dept Comp Sci, Ensenada, Baja California, Mexico; 6.Ctr Invest Biol Noroeste, La Paz, Baja California, Mexico
推荐引用方式 GB/T 7714	Gabriel Escobar-Flores, Jonathan,Sandoval, Sarahi,Valdez, Raul,et al. Waterhole detection using a vegetation index in desert bighorn sheep (Ovis canadensis cremnobates) habitat[J]. New Mexico State University,2019,14(1).
APA	Gabriel Escobar-Flores, Jonathan.,Sandoval, Sarahi.,Valdez, Raul.,Shahriary, Eahsan.,Torres, Jorge.,...&Gallina-Tessaro, Patricia.(2019).Waterhole detection using a vegetation index in desert bighorn sheep (Ovis canadensis cremnobates) habitat.PLOS ONE,14(1).
MLA	Gabriel Escobar-Flores, Jonathan,et al."Waterhole detection using a vegetation index in desert bighorn sheep (Ovis canadensis cremnobates) habitat".PLOS ONE 14.1(2019).