English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/196437
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Title

The Enhanced Vegetation Index (EVI) as a proxy for diet quality and composition in a mountain ungulate

AuthorsVillamuelas, Miriam; Fernández, Néstor ; Albanell, Elena; Gálvez-Cerón, Arturio; Bartolomé, Jordi ; Mentaberre, Gregorio; López-Olvera, Jorge R. ; Fernández-Aguilar, Xavier; Colom-Cadena, Andreu; López-Martín, Josep María; Pérez-Barbería, Javier; Garel, Mathieu; Marco, Ignasi; Serrano, Emmanuel
KeywordsRemote sensing
Faecal nitrogen
Faecal cuticle microhistological analysis
NDVI
Fibre contents
Alpine grassland
Rupicapra pyrenaica pyrenaica
Herbivore nutrition
Issue DateFeb-2016
PublisherElsevier
CitationEcological Indicators 61(2): 658-666 (2016)
AbstractIn recent years, the use of satellite-derived vegetation indices has become a powerful tool to collect information on vegetation dynamics in a broad range of ecosystems worldwide. However, the utility of these indices as indicators of the diet composition and quality of herbivore mammals has not yet been established. This work focuses on exploring such relationships analysing four years of records of monthly Enhanced Vegetation Index (EVI, a MOD13 satellite-derived index) and diet composition and quality of two populations of chamois (Rupicapra pyrenaica pyrenaica) in the Eastern Pyrenees (Spain). Our results revealed that 68.4% and 53.3% of diet composition and quality of chamois can be explained by EVI values in the green-up season (spring) and green senescence (winter season), respectively. In both periods, EVI was related mainly to diets low in fibre (cellulose, hemicellulose and lignin) and heather (Calluna vulgaris) and high in nitrogen due to the consumption of Festuca, Forbs and Trifolium. During the summer season however, the EVI was not significantly related to diet components of chamois. A significant inter-year variability in the diets of the chamois was also observed. To conclude, remote sensing is appropriate to assess temporal variations in dietary components of mountain ungulates, and could be used as a component of monitoring large herbivore populations in management programmes.
Publisher version (URL)https://doi.org/10.1016/j.ecolind.2015.10.017
URIhttp://hdl.handle.net/10261/196437
DOI10.1016/j.ecolind.2015.10.017
ISSN1470-160X
E-ISSN1872-7034
Appears in Collections:(EBD) Artículos
Files in This Item:
File Description SizeFormat 
accesoRestringido.pdf15,38 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.