Ontogenetic changes in feeding habits of northern elephant seals revealed by δ15N and δ13C analysis of growth layers in teeth

Stable isotope analysis is useful for examining the feeding strategies of mammals. Isotopes in the annual deposition growth layers of dentine in teeth permit assessment of ontogenetic dietary shifts in individuals, because this metabolically inert tissue is not resorbed after deposition. Profiles of...

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Veröffentlicht in:	Marine ecology. Progress series (Halstenbek) 2012-03, Vol.450, p.229-241
Hauptverfasser:	Riofrío-Lazo, Marjorie, Aurioles-Gamboa, David, Le Boeuf, Burney J.
Format:	Artikel
Sprache:	eng
Schlagworte:	Adults Animal age determination Diet Elephants Female animals Foraging Isotopes Pups Seals Trophic levels
Online-Zugang:	Volltext
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