Northern elephant seals
Development of an animal-borne “sonar tag” for quantifying prey availability: test deployments on northern elephant seals
... juvenile northern elephant seals. Juvenile elephant seals translocated short distances away from the Año Nuevo State Reserve north of Santa Cruz, California, are known to return to the ...
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Prolonged fasting increases purine recycling in post weaned northern elephant seals
... land, seals are also exposed to ischemia during breath-holding while diving and sleeping (Castellini et ...that seals have a greater capacity to conserve or salvage purines (Elsner et ...in seals has ...
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Prolonged fasting increases glutathione biosynthesis in postweaned northern elephant seals
... The observed increases in the expression of both GCLc and GCLm, along with the increase in circulating and tissue GSH-Eq content, indicate that GSH biosynthesis increases with fasting in postweaned northern ...
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Northern elephant seals adjust gliding and stroking patterns with changes in buoyancy: validation of at sea metrics of body density
... free-diving Northern elephant seals, Mirounga angustirostris (Gill 1866), to explore from both an ecological and biomechanical perspective how gliding and stroking patterns are altered by changes in ...
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Respiration and heart rate at the surface between dives in northern elephant seals
... Northern elephant seals dive deeply (modal depths 400–600 m), for long periods (mean 20–22 min) and virtually continuously during 2- to 8-month biannual foraging migrations from rookeries in central ...
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Underwater and surface behavior of homing juvenile northern elephant seals
... Northern elephant seals, Mirounga angustirostris , travel between colonies along the west coast of North America and foraging areas in the North ...in elephant seal navigation by translocating ...
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Free swimming northern elephant seals have low field metabolic rates that are sensitive to an increased cost of transport
... example, northern elephant seals demonstrate increased foraging trip durations, increased travel time between foraging patches and reduced pup survivorship during severe El Niño years (Crocker et ...
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Effects of buoyancy on the diving behavior of northern elephant seals
... in northern elephant seals Mirounga ...juvenile elephant seals translocated from Año Nuevo State Reserve, CA, USA, and released at various sites in Monterey Bay, CA, ...The seals ...
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Sex differences in fuel use and metabolism during development in fasting juvenile northern elephant seals
... Many polygynous, capital breeders exhibit sexual dimorphism with respect to body size and composition. Sexual dimorphism is often facilitated by sex differences in foraging behavior, growth rates and patterns of nutrient ...
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Heart rates of northern elephant seals diving at sea and resting on the beach
... of elephant seal diving has recently been demonstrated (Le Boeuf, 1994; ...old) northern elephant seals haul out on the beach at the Año Nuevo rookery in central California twice a year, in ...
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Summing the strokes: energy economy in northern elephant seals during large-scale foraging migrations
... ern elephant seals under normal foraging ...3 seals encountering in- creased foraging costs due to increased drag, to determine how the disruption of stereotyped locomotory behaviors affects energy ...
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Water conservation in fasting northern elephant seals (Mirounga angustirostris)
... If phocids had a respiratory system comparable to that of a terrestrial carnivore, such as the dog, they would lose 41.3% of the water their lungs added to every breath, instead of only 7.3%. Under these conditions, they ...
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Terrestrial locomotion of the northern elephant seal (Mirounga angustirostris): limitation of large aquatically adapted seals on land?
... phocid seals toward a more specialized, aquatically adapted lifestyle can restrict their locomotion on ...male northern elephant seals are especially ...in northern elephant ...
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Growth of the southern elephant seal Mirounga leonina (Linnaeus 1758) at Macquarie Island
... were recorded during the same period, suggesting that growth was comprised primarily of adjustments to body composition, rather than increases in gross body size. This may b e in response to the functional demands of ...
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Blood oxygen depletion during rest associated apneas of northern elephant seals (Mirounga angustirostris)
... Elephant seals, renowned for their diving ability and extensive pelagic lifestyle, spend 2–4·months per year on land in order to breed or ...In northern elephant seals (Mirounga ...
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Prolonged fasting does not increase oxidative damage or inflammation in postweaned northern elephant seal pups
... Northern elephant seals (Mirounga angustirostris Gill 1866) maintain electrolyte and fluid homeostasis during prolonged food and water deprivation (fasting) by activating the renin–angiotensin system ...
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Intrinsic anti inflammatory properties in the serum of two species of deep diving seal
... and elephant seals are deep-diving mammals, which rely on lung collapse to limit nitrogen absorption and prevent decompression ...deep-diving seals, we examined the inflammatory response of seal ...
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Environment and activity affect skin temperature in breeding adult male elephant seals (Mirounga angustirostris)
... male northern elephant seals (Mirounga angustirostris Linnaeus) between January and March 2008 at Año Nuevo State Park, CA, ...male elephant seals were given unique marks on either ...
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Hormonal regulation of glucose clearance in lactating northern elephant seals (Mirounga angustirostris)
... Northern elephant seals exhibit the rare strategy of fasting and lactating ...in northern elephant seals using glucose tolerance tests (GTT) performed early in lactation and ...
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Elevated carboxyhemoglobin in a marine mammal, the northern elephant seal
... Weddell seals (Leptonychotes weddelli) (Pugh, ...juvenile northern elephant seals [Mirounga angustirostris (Gill 1866)], yet the values are in the same range as those seen in healthy humans ...
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