Arid
DOI10.1017/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
ISSN0030-6053
EISSN1365-3008
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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