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Tracking apex marine predator movements in a dynamic ocean
It is shown that top predators exploit their environment in predictable ways, providing the foundation for spatial management of large marine ecosystems, and critical habitats across multinational boundaries are identified. Expand
Migratory shearwaters integrate oceanic resources across the Pacific Ocean in an endless summer
The extraordinary transequatorial postbreeding migrations of a small seabird, the sooty shearwater, obtained with miniature archival tags that log data for estimating position, dive depth, and ambient temperature reveal that shearwaters fly across the entire Pacific Ocean in a figure-eight pattern while traveling 64,037 ± 9,779 km roundtrip, the longest animal migration ever recorded electronically. Expand
Water flux in animals: analysis of potential errors in the tritiated water method.
  • K. Nagy, D. Costa
  • Chemistry, Medicine
  • The American journal of physiology
  • 1 May 1980
Water flux rates measured with tritiated water may be expected to be within +/- 10% of actual flux rates in most situations, but under conditions that can occur in field studies, errors may be much greater. Expand
Accuracy of ARGOS Locations of Pinnipeds at-Sea Estimated Using Fastloc GPS
Background ARGOS satellite telemetry is one of the most widely used methods to track the movements of free-ranging marine and terrestrial animals and is fundamental to studies of foraging ecology,Expand
Heart rates of northern elephant seals diving at sea and resting on the beach.
Although bradycardia occurs in response to apnoea both at sea and on land, only at sea is heart rate apparently regulated to minimise eupnoeic time and to ration oxygen stores to ensure adequate supplies for the heart and brain not only as the dive progresses normally but also when a dive is abnormally extended. Expand
Fast and fuel efficient? Optimal use of wind by flying albatrosses
The capacity to integrate instantaneous eco–physiological measures with records of largescale flight and wind patterns allows us to understand better the complex interplay between the evolution of morphological, physiological and behavioural adaptations of albatrosses in the windiest place on earth. Expand
Effects of buoyancy on the diving behavior of northern elephant seals.
It is demonstrated that buoyancy plays a significant role in shaping diving behavior in northern elephant seals and that elephant seals may adjust their behavior to suit their buoyancy, rather than adjusting their buoyancies to suit a dive. Expand
The ontogeny of metabolic rate and thermoregulatory capabilities of northern fur seal, Callorhinus ursinus, pups in air and water.
It is demonstrated that the development of thermoregulatory capabilities plays a significant role in determining when northern fur seal pups enter the water, and pre-molt pups experience greater relative costs when entering the water regardless of temperature. Expand
Sexual segregation in foraging is predicted from the great size disparity of male and female northern elephant seals, Mirounga angustirostris. Our aim was to test this prediction by measuring divingExpand