Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/142377
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Diet composition and foraging success in generalist predators: Are specialist individuals better foragers? |
Autor: | Terraube, Julien CSIC ORCID; Guixé, David; Arroyo, Beatriz CSIC ORCID | Palabras clave: | Habitat selection Montagu's harrier Foraging efficiency Individual specialization Prey selection |
Fecha de publicación: | 2014 | Editor: | Elsevier | Citación: | Basic and Applied Ecology 15(7): 616-624 (2014) | Resumen: | [EN]: Factors affecting individual diet specialization in generalist populations and the relationship between diet and foraging success remain poorly studied, particularly in terrestrial wide-ranging predators. We studied whether individual variations in diet in Montagu's harrier males (determined through a combination of direct foraging observations and pellet analysis) were associated with patterns of foraging habitat selection and foraging success of 12 radiotracked males during the breeding period. We found important differences in diet composition and breadth between individuals. Diet diversity was negatively related to hunting success: the most efficient individuals in terms of hunting success had the most specialized diet. This study also suggests an important role of individual foraging habitat selection in explaining individual diet, as the proportion of different prey types in the diet was associated with habitat composition within the home range, with higher proportion of those habitats that held higher abundances of their more frequent prey. This study thus provides evidence of individual diet specialization having a knock-on effect on foraging efficiency in a wide-ranging raptor and highlights the role of individual behaviour as a driving force of intra-population niche variation. | Versión del editor: | https://doi.org/10.1016/j.baae.2014.08.008 | URI: | http://hdl.handle.net/10261/142377 | DOI: | 10.1016/j.baae.2014.08.008 | Identificadores: | doi: 10.1016/j.baae.2014.08.008 issn: 1439-1791 |
Aparece en las colecciones: | (IREC) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
betterforagers.pdf | 168,86 kB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
34
checked on 22-abr-2024
WEB OF SCIENCETM
Citations
32
checked on 22-feb-2024
Page view(s)
221
checked on 24-abr-2024
Download(s)
573
checked on 24-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.