Dietary plasticity and broad North Atlantic origins inferred from bulk and amino acid-specific δ 15 N and δ 13 C favour killer whale range expansions into Arctic waters

Killer whales (Orcinus orca) occur seasonally in the eastern Canadian Arctic (ECA), where their range expansion associated with declining sea ice have raised questions about the impacts of increasing killer whale predation pressure on Arctic-endemic prey. We assessed diet and distribution of ECA kil...

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Veröffentlicht in:	The Journal of animal ecology 2024-08, Vol.93 (8), p.1049-1064
Hauptverfasser:	Matthews, Cory J D, Yarnes, Chris T, Lefort, Kyle J, Edkins, Tera L, Kiszka, Jeremy J, Ferguson, Steven H
Format:	Artikel
Sprache:	eng
Schlagworte:	Amino Acids - analysis Animal Distribution Animals Arctic Regions Atlantic Ocean Canada Carbon Isotopes - analysis Diet - veterinary Food Chain Nitrogen Isotopes - analysis Whale, Killer - physiology
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