Blar i NIVA Open Access Archive på forfatter "Jourdain, Eve"
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Isotopic niche differs between seal and fish-eating killer whales (Orcinus orca) in northern Norway
Jourdain, Eve; Andvik, Clare Margaret; Karoliussen, Richard; Ruus, Anders; Vongraven, Dag; Borgå, Katrine (Peer reviewed; Journal article, 2020)Ecological diversity has been reported for killer whales (Orcinus orca) throughout the North Atlantic but patterns of prey specialization have remained poorly understood. We quantify interindividual dietary variations in ... -
Preying on seals pushes killer whales from Norway above pollution effects thresholds
Andvik, Clare; Jourdain, Eve; Ruus, Anders; Lyche, Jan Ludvig; Karoliussen, Richard; Borgå, Katrine (Peer reviewed; Journal article, 2020)Killer whales (Orcinus orca) are at risk from high levels of biomagnifying pollutants, such as polychlorinated biphenyls (PCBs) and mercury (Hg). Previous toxicological risk assessments for the Norwegian killer whale ...