Ecological niche segregation among five toothed whale species off the NW Iberian Peninsula using ecological tracers as multi-approach

Abstract : This study aims to assess niche segregation among the five main toothed whales that frequent the NW Iberian Peninsula waters: the common dolphin, the harbour porpoise, the bottlenose dolphin, the striped dolphin and the long-finned pilot whale. We used cadmium (Cd) and stable isotope ratios (d13C and d15N) as ecological tracers to assess degree of segregation in diet/trophic level and in foraging habitat, over various time-scales. d13C values highlighted different habitats, while Cd concentrations highlighted feeding differences between oceanic and neritic species. Moreover, d15N values suggest different trophic levels of prey targeted within oceanic and neritic species. Hence, results revealed long-term ecological segregation among five toothed whales that coexist in the NWIP and demonstrated the ability of ecological tracers to discriminate ecological niches among closely related species
Type de document :
Article dans une revue
Marine Biology, Springer Verlag, 2013, pp.1-16. 〈10.1007/s00227-013-2274-9〉
Liste complète des métadonnées

Littérature citée [6 références]  Voir  Masquer  Télécharger

https://hal.archives-ouvertes.fr/hal-00842319
Contributeur : Paula Méndez Fernandez <>
Soumis le : jeudi 11 juillet 2013 - 14:46:35
Dernière modification le : jeudi 11 janvier 2018 - 06:23:34
Document(s) archivé(s) le : samedi 12 octobre 2013 - 04:21:36

Fichier

MA_ndez-Fernandez_et_al._2013....
Fichiers produits par l'(les) auteur(s)

Identifiants

Collections

Citation

Paula Méndez-Fernandez, G.J. Pierce, P. Bustamante, Tiphaine Chouvelon, Marisa Ferreira, et al.. Ecological niche segregation among five toothed whale species off the NW Iberian Peninsula using ecological tracers as multi-approach. Marine Biology, Springer Verlag, 2013, pp.1-16. 〈10.1007/s00227-013-2274-9〉. 〈hal-00842319〉

Partager

Métriques

Consultations de la notice

426

Téléchargements de fichiers

320