English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/121822
COMPARTIR / IMPACTO:
Estadísticas
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:
Título

Depicting the novel Eastern Mediterranean food web: a stable isotopes study following Lessepsian fish invasion

AutorFanelli, Emanuela ; Azzurro, Ernesto ; Bariche, Michel; Cartes, Joan Enric ; Maynou, Francesc
Palabras claveBioinvasion
Lessepsian migration
Marine fish
Mediterranean Sea
Stable isotopes
Trophic niche
Fecha de publicaciónjul-2015
EditorSpringer
CitaciónBiological Invasions 17(7): 2163-2178 (2015)
ResumenThe introduction of Red Sea species through the Suez Canal has caused dramatic alteration of Eastern Mediterranean marine communities, however changes at the level of trophic interactions remain poorly understood. Capitalizing on this spectacular bioinvasion, we used stable isotope analysis to depict the novel fish food web occurring in the Eastern Mediterranean, off the Lebanese coast. Multivariate analyses were performed on six trophic groups contrasting the δ15N–δ13C ratios of native (MED) versus non-indigenous (Lessepsian-LES) species. Community-wide aspects of trophic structure were explored by means of recently developed quantitative metrics, such as the average distance to centroid and the standard ellipse area. Although the trophic positions of Lessepsian and native species were comparable, native fishes generally showed a greater trophic diversity than Lessepsians, the latter being mainly located in the central region of the available trophic space. We argue that the original trophic niche of native species has widened out due to the shift they have made towards less preferred food items, whilst highly competitive invaders are exploiting more energetic resources. In the absence of historical data, our observations agree with the idea of a rapid change of the Eastern Mediterranean food web, driven by niche displacements through trophic competition
Descripción16 pages, 3 figures, 8 tables, electronic supplementary material http://dx.doi.org/10.1007/s10530-015-0868-5
Versión del editorhttp://dx.doi.org/10.1007/s10530-015-0868-5
URIhttp://hdl.handle.net/10261/121822
DOI10.1007/s10530-015-0868-5
ISSN1387-3547
E-ISSN1573-1464
Aparece en las colecciones: (ICM) Artículos
Ficheros en este ítem:
No hay ficheros asociados a este ítem.
Mostrar el registro completo
 

Artículos relacionados:


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.