Regional variability in diving physiology and behavior in a widely distributed air-breathing marine predator, the South American sea lion Otaria byronia
Journal of Experimental Biology
Our understanding of how air-breathing marine predators cope with environmental variability is limited by our inadequate knowledge of their ecological and physiological parameters. Because of their...
Marine foraging ecology influences mercury bioaccumulation in deep-diving northern elephant seals
Proceedings of the Royal Society B: Biological Sciences
Mercury contamination of oceans is prevalent worldwide and methylmercury concentrations in the mesopelagic zone (200–1000 m) are increasing more rapidly than in surface waters. Yet mercury...
Ecology and Evolution
Intraspecific variability in foraging behavior has been documented across a range of taxonomic groups, yet the energetic consequences of this variation are not well understood for...
Top down and bottom up influences on demographic rates of Antarctic fur seals Arctocephalus gazella
The Journal of Animal Ecology
1. Two major drivers in population dynamics are bottom-up processes, such as environmental factors that affect foraging success, and the top-down impacts of predation. 2. Many...