Community reorganization revealed by exploring shifts in the diet of an apex predator, the Golden Eagle Aquila chrysaetos, with stable isotopes and prey remains

Golden Eagles Aquila chrysaetos colonized the northern California Channel Islands, an archipelago located off the coast of southern California, USA , in the early 1990s, owing in part to the presence of Feral Pigs Sus scrofa . Eagles preyed on piglets and on the endemic Island Fox Urocyon littoralis , driving three endemic subspecies of the Island Fox ( U . l . santacruzae , U . l . santarosae and U . l . littoralis ) toward extirpation. Using...