Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1017/S0030605316000430 |
Evaluating methods for surveying the Endangered Cuvier’s gazelle Gazella cuvieri in arid landscapes | |
Maria Gil-Sanchez, Jose1,4; Javier Herrera-Sanchez, F.1; Alvarez, Begona1; Arredondo, Angel1; Bautista, Jesus1; Cancio, Inmaculada1; Castillo, Salvador1; Angel Diaz-Portero, Miguel1; de Lucas, Jesus1; McCain, Emil1; Perez, Joaquin1; Rodriguez-Siles, Javier1; Manuel Saez, Juan1; Martinez-Valderrama, Jaime1; Valenzuela, Gerardo1; Qninba, Abdeljebbar2; Virgos, Emilio3 | |
通讯作者 | Maria Gil-Sanchez, Jose |
来源期刊 | ORYX
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ISSN | 0030-6053 |
EISSN | 1365-3008 |
出版年 | 2017 |
卷号 | 51期号:4页码:648-655 |
英文摘要 | The Endangered Cuvier’s gazelle Gazella cuvieri is an endemic ungulate of north-western Africa. Information on the species has been based primarily on non-systematic surveys, and the corresponding status estimates are of unknown quality. We evaluate the effectiveness and efficiency of two field methods for systematic surveys of populations of Cuvier’s gazelle in arid environments: distance sampling (based on sightings) and sampling indirect sign (tracks and scats). The work was carried out in the north-western Sahara Desert, in Morocco, where what is possibly the largest population of Cuvier’s gazelle persists. A logistically viable survey was conducted over a total area of c. 20.000 km(2) in 10 expeditions during 2011-2014. A total of 67 sites were surveyed, with 194 walking surveys (2,169 km in total). Gazelle signs were detected at 50 sites, and gazelles were sighted at 21 sites (61 individuals). We found a relationship between sightings and abundance indices based on indirect sign, which could be useful for population monitoring or ecological studies. Additionally, the data could be used in occupancy modelling. Density estimates based on distance sampling required considerable effort; however, it is possible to survey large areas during relatively short campaigns, and this proved to be the most useful approach to obtain data on the demographic structure of the population. |
英文关键词 | Distance sampling endemic species Gazella cuvieri Morocco occupancy Sahara Desert ungulate |
类型 | Article |
语种 | 英语 |
国家 | Spain ; Morocco ; Ecuador |
收录类别 | SCI-E |
WOS记录号 | WOS:000412090500017 |
WOS关键词 | MOUNTAIN GAZELLES ; DORCAS GAZELLES ; HABITAT USE ; POPULATION ; SIZE ; ARABIA |
WOS类目 | Biodiversity Conservation ; Ecology |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/201317 |
作者单位 | 1.Harmusch, Assoc Study & Conservat Wildlife, C San Anton 15,1, E-13580 Ciudad Real, Spain; 2.Univ Mohammed 5, Inst Sci Rabat, Dept Zool & Ecol Anim, Rabat, Morocco; 3.Univ Rey Juan Carlos, Dept Biol & Geol, Madrid, Spain; 4.Pontificia Univ Catolica Ecuador, Escuela Ciencias Biol, Av 12 Octubre 1076 Roca E 17-01-2184, Quito, Ecuador |
推荐引用方式 GB/T 7714 | Maria Gil-Sanchez, Jose,Javier Herrera-Sanchez, F.,Alvarez, Begona,等. Evaluating methods for surveying the Endangered Cuvier’s gazelle Gazella cuvieri in arid landscapes[J],2017,51(4):648-655. |
APA | Maria Gil-Sanchez, Jose.,Javier Herrera-Sanchez, F..,Alvarez, Begona.,Arredondo, Angel.,Bautista, Jesus.,...&Virgos, Emilio.(2017).Evaluating methods for surveying the Endangered Cuvier’s gazelle Gazella cuvieri in arid landscapes.ORYX,51(4),648-655. |
MLA | Maria Gil-Sanchez, Jose,et al."Evaluating methods for surveying the Endangered Cuvier’s gazelle Gazella cuvieri in arid landscapes".ORYX 51.4(2017):648-655. |
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