Changes in the Norwegian breeding population of European shag correlate with forage fish and climate

Bustnes, J.O., Anker-Nilssen, T., Erikstad, K.E., Lorentsen, S.-H., Systad, G.H. 2013. Changes in the Norwegian breeding population of European shag correlate with forage fish and climate. Marine Ecology Progress Series 489: 235-244. DOI: 10.3354/meps10440