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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
1979-2-23
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pubmed:abstractText |
Temperature regulation in harp seal pups (Pagophilus groenlandicus) has been studied by in vivo measurements of oxygen consumption, body temperatures and in vitro determinations of the thermal values of a fur sample. The experimental animals were restrained and exposed to natural wheather conditions. Solar irradiance above 600 W/m (global radiation) caused hyperthermia. Computer simulations based on the thermal values of the fur indicated that heat dissipation from primarily the limbs is a prerequisite for avoiding hyperthermia under natural weather conditions. Further simulations showed that the lower critical temperature of a lean newborn harp seal pup with standard metabolism is only--1 degree C while it is depressed to--59 degree C as the pup grows, aquire a 10 cm thick layer of blubber and the metabolism increases to 1.5 times standard. High metabolism and tolerance to low deep body temperatures (35 degree C) seems a prerequisite for thermal balance in the harp seal pup under cold conditions.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:month |
Jul
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pubmed:issn |
0001-6772
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
103
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
263-9
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pubmed:dateRevised |
2004-11-17
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pubmed:meshHeading |
pubmed-meshheading:726922-Animals,
pubmed-meshheading:726922-Animals, Newborn,
pubmed-meshheading:726922-Basal Metabolism,
pubmed-meshheading:726922-Body Temperature,
pubmed-meshheading:726922-Body Temperature Regulation,
pubmed-meshheading:726922-Canada,
pubmed-meshheading:726922-Computers,
pubmed-meshheading:726922-Pinnipedia,
pubmed-meshheading:726922-Seals, Earless,
pubmed-meshheading:726922-Sunlight,
pubmed-meshheading:726922-Temperature,
pubmed-meshheading:726922-Wind
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pubmed:year |
1978
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pubmed:articleTitle |
Aspects of temperature regulation in harp seal pups evaluated by in vivo experiments and computer simulations.
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pubmed:publicationType |
Journal Article
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