Guillemot (Uria aalge) Science Article 2
abstract
Common Guillemots Uria aalge are long-lived seabirds with a low annual reproductive output; hence annual adult survival is a significant parameter for the sustainability of the population (Harris & Birkhead 1985, Hudson 1985). Oiling, bycatches, and large-scale oceanographic and foodweb changes are commonly considered to be potential major threats to adult Common Guillemot survival. […].
Henrik Osterblom, Henk P. van der Jeugd & Olof Olsson, Ibis(2004),146