Month: October 2004
-
The cost of foraging by a marine predator, the Weddell seal Leptonychotes weddellii: pricing by the stroke
Foraging by mammals is a complex suite of behaviors that can entail high energetic costs associated with supporting basal metabolism, locomotion and the digestion of prey. To determine the contribution of these various costs in a free-ranging marine mammal, we measured the post-dive oxygen consumption of adult Weddell seals (N=9) performing foraging and non-foraging dives…