Diets of Mature Male and Female Steller Sea Lions (Eumetopias jubatus) Differ and Cannot Be Used as Proxies for Each Other

From: Aquatic Mammals | Date: January 1, 2008| Author: Calkins, Donald G; Trites, Andrew W | Copyright information

Abstract

Disturbance of otariid breeding sites (rookeries) to determine diet from fecal remains (scats) could be eliminated if the diets of males using adjoining bachelor haulouts could be used as a proxy for diets of breeding females. We collected scats from sexually mature Steller sea lions (Eumetopias jubatus) at one male resting site (haulout) and three female dominated breeding sites (rookeries) at Forrester Island, southeast Alaska (June and July, 1994 to 1999) to test whether th...

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