There have been efforts around the globe to track individuals of many marine species and
assess their movements and distribution, with the putative goal of supporting their …

The number of scientific papers resulting from biologging instruments deployed on marine
mammals is increasing as improved technologies result in smaller devices and improved …

Currently, the Galapagos sea lion (GSL, Zalophus wollebaeki) and Galapagos fur seal (GFS,
Arctocephalus galapagoensis) are among the most important endemic species for …

Individual specialisation is increasingly recognised to be an ecological and evolutionary
process having important consequences for population dynamics of vertebrates. The South …

Body size and feeding morphology influence how animals partition themselves within
communities. We tested the relationships among sex, body size, skull morphology and …

Interspecific interactions help to shape individual-and population-level dynamics. As such,
similar species breeding sympatrically are expected to have a high potential for competition …

Marine top predators represent an essential part of marine ecosystems. They are generally
regarded as “sentinels of the sea” since their presence reflects high biological productivity …

Otariids exhibit a semiaquatic lifestyle, feeding in the water and breeding and resting on
land. Fur seals and sea lions, the two groups of otariids, exhibit an overall income breeding …

Intraspecific variability is increasingly recognized as an important component of foraging
behavior that can have implications for both population and community dynamics. We used …

Sympatric species evolve mechanisms to avoid competition and coexist. In the Humboldt
Current System (HCS), populations of South American sea lions (SASL, Otaria byronia) and …