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Topic: Heterothermic


  
  APStracts 4:0059R, 1997.   (Site not responding. Last check: 2007-11-06)
Enzyme adaptation along a heterothermic tissue - the visceral retia mirabilia of the bluefin tuna.
We measured enzyme activities along a heterothermic tissue, the visceral retia mirabilia of the bluefin tuna, to test current theories of enzyme temperature adaptation.
The heterothermic tissue model is ideal for the study of fundamental temperature adaptation because it eliminates confounding effects of whole-animal acclimation.
www.uth.tmc.edu /apstracts/1997/regulatory/February/59r.html   (227 words)

  
 Douglas Fudge's Abstracts
Such compensatory changes in membrane composition are considered "homeoviscous adaptations." In this study, we examined a heterothermic tissue, the visceral rete mirabile of the bluefin tuna, for evidence of homeoviscous adaptation.
We measured the proportions of phospholipid fatty acids and phospholipid head groups as a function of position along the rete thermal gradient, which has been estimated to be about 10 C. We found no effect of position along the rete on the composition of either phospholipid fatty acids or head groups.
Enzyme adaptation along a heterothermic tissue: the visceral heat exchangers of the blufein tuna
www.zoology.ubc.ca /labs/biomaterials/ab-doug.html   (1113 words)

  
 Design of heterothermic muscle in fish -- Katz 205 (15): 2251 -- Journal of Experimental Biology   (Site not responding. Last check: 2007-11-06)
of the heterothermic skipjack tuna (Hebrank and Hebrank, 1986
and yellowfin tuna (Thunnus albacares), a heterothermic scombrid (Altringham
Heterothermic tuna are indicated by red lines, and non-heterotherms are indicated by blue lines.
jeb.biologists.org /cgi/content/full/205/15/2251   (9202 words)

  
 Heterothermic   (Site not responding. Last check: 2007-11-06)
"Heterothermic" is generally used as an adjective (general or positive) -- approximately 100.00% of the time.
"Heterothermic" is used about 3 times out of a sample of 100 million words spoken or written in English.
Its rank is based on over 700,000 words used in the English language.
www.websters-online-dictionary.org /he/heterothermic.html   (264 words)

  
 Glossary of Terms   (Site not responding. Last check: 2007-11-06)
Maintaining a constant body temperature during stressful periods is such a metabolic expense for warm-blooded animals that some of them have become Heterothermic.
Heterothermic: Having the ability to maintain a constant body temperature at some time, but allowing it to fluctuate at other times.
The body temperature of some desert animals (camel, some antelopes) may rise significantly during the hottest part of the day, without injury to the animal.
www.honoluluzoo.org /Glossary.htm   (562 words)

  
 Enzyme adaptation along a heterothermic tissue: the visceral retia mirabilia of the bluefin tuna -- Fudge et al. 272 ...
Enzyme adaptation along a heterothermic tissue: the visceral retia mirabilia of the bluefin tuna -- Fudge et al.
Enzyme adaptation along a heterothermic tissue: the visceral retia mirabilia of the bluefin tuna
The heterothermic tissue model is ideal for the
ajpregu.physiology.org /cgi/content/abstract/272/6/R1834   (302 words)

  
 Hypoxia tolerance in mammalian heterotherms -- Drew et al. 207 (18): 3155 -- Journal of Experimental Biology
Hypoxia tolerance in mammalian heterotherms -- Drew et al.
may not be the case in all heterothermic species.
In summary, heterothermic mammals possess a repertoire of neuroprotective adaptations
jeb.biologists.org /cgi/content/full/207/18/3155   (5109 words)

  
 Hagfish Slime Research
Fudge, D.S., Ballantyne, J.S., and Stevens, E.D. A test of biochemical symmorphosis in a heterothermic tissue: bluefin tuna white muscle.
Enzyme adaptation along a heterothermic tissue: the visceral heat exchangers of the bluefin tuna.
The visceral retia mirabilia of tuna and sharks: an annotated translation and discussion of the Eschricht and Müller 1835 paper and related papers.
www.zoology.ubc.ca /labs/biomaterials/slime.html   (541 words)

  
 SLOTH.COM - SLOTH INFORMATION PAGE   (Site not responding. Last check: 2007-11-06)
Two-toed sloths are capable of vigorous self defense, using their foreclaws to slash a predator and biting with their enlarged, canine-like cheek teeth.
Two toed sloths are perhaps more heterothermic than any other mammal.
Their body temperatures fluctuate from as low as 24 degrees C to as high as 33 degrees C. Unlike three-toed sloths, however, they do not thermoregulate by basking.
www.sloth.com   (2854 words)

  
 Evolutionary Physiology   (Site not responding. Last check: 2007-11-06)
Temperature will influence the structural properties of the lung, and will also affect the systems that determine the release and composition of surfactant.
Heterothermic mammals that undergo large fluctuations in body temperature as part of their daily routine, represent excellent models for understanding the capacity of the surfactant system to cope with temperature fluxes.
Heterothermic animals, such as fat-tailed dunnarts, Sminthopsis crassicaudata, Gould's wattle bat, Chalinolobus gouldii and ground squirrels, Citellus tridecemlineatus, experience fluctuations in body temperature when they enter and arouse from daily torpor or longer periods of hibernation.
www.ees.adelaide.edu.au /research/enviro/evol_physiology   (3178 words)

  
 APStracts 3:0067R, 1996.   (Site not responding. Last check: 2007-11-06)
Alterations in the composition and function of pulmonary surfactant associated with torpor in a heterothermic mammal (sminthopsis crassicaudata).
However, many mammals undergo large fluctuations in body temperature (heterothermic).
Here, the surfactant lipid composition and lung compliance of warm-active dunnarts (Sminthopsis crassicaudata) and the homeothermic mouse (Mus musculus) (body temperature, TB =35-37 degrees C) were compared with those of dunnarts killed after 1, 4 or 8 hours of torpor (TB&LT20 degrees C).
www.uth.tmc.edu /apstracts/1996/regulatory/March/67r.html   (335 words)

  
 University Department of Medicine Staff   (Site not responding. Last check: 2007-11-06)
Ormond, C.J., Orgeig, S., Daniels, C.B. and Milsom, W.K. Thermal acclimation of surfactant secretion and its regulation by adrenergic and cholinergic agonists in type II cells isolated from warm-active and torpid golden-mantled ground squirrels, Spermophilus lateralis.
Ormond, C.J., Orgeig, S. and Daniels, C.B. The effect of temperature on adrenergic receptors of alveolar type II cells of a heterothermic marsupial.
Ormond, C. J., Daniels, C. and Orgeig, S. Neurochemical and thermal control of surfactant secretion by alveolar type II cells isolated from the marsupial, Sminthopsis crassicaudata.
www.health.adelaide.edu.au /medicine/current_staff/Lang_c.html   (244 words)

  
 A test of biochemical symmorphosis in a heterothermic tissue: bluefin tuna white muscle -- Fudge et al. 280 (1): 108 -- ...
A test of biochemical symmorphosis in a heterothermic tissue: bluefin tuna white muscle -- Fudge et al.
A test of biochemical symmorphosis in a heterothermic tissue: bluefin tuna white muscle
In short, we tested the hypotheses that 1) enzyme thermal compensation occurs along the heterothermic white muscle of T.
ajpregu.physiology.org /cgi/content/full/280/1/R108   (4356 words)

  
 [No title]
Fudge, D.S., Stevens, E.Don, and Ballantyne, J.S. No evidence for homeoviscous adaptation in a heterothermic tissue: tuna heat exchangers.
Fudge, D.S., Stevens, E.Don, and Ballantyne, J.S. Enzyme adaptation along a heterothermic tissue: the visceral retia mirabilia of the bluefin tuna.
Effect of phase of stimulation on acute damage caused by eccentric contractions in mouse soleus muscle.
www.uoguelph.ca /~dstevens/research/cv/90s.htm   (673 words)

  
 UNE Sciences -Staff Details
Geiser F (1986) Temperature regulation in heterothermic marsupials.
Geiser F, McMurchie EJ (1984) Differences in the thermotropic behaviour of mitochondrial membrane respiratory enzymes from homeothermic and heterothermic endotherms.
Geiser F (2003) Metabolic rate reduction in heterothermic endotherms: effects of torpor pattern, temperature, and size.
www.sciences.une.edu.au /esnrm/page.asp?PgName=staff_details&StID=2726   (6842 words)

  
 Find in a Library: Comparative physiology of carbohydrate metabolism in heterothermic animals.
Find in a Library: Comparative physiology of carbohydrate metabolism in heterothermic animals.
Comparative physiology of carbohydrate metabolism in heterothermic animals.
WorldCat is provided by OCLC Online Computer Library Center, Inc. on behalf of its member libraries.
www.worldcatlibraries.org /wcpa/ow/339af891afd6a8f4.html   (63 words)

  
 Bartlett Experimental Forest
Studies of species communities lead to better understanding of the northern hardwoods ecosystem and provide some insight into the likely consequences of habitat alteration or environmental change.
Bats are heterothermic mammals, and, as such, possible early indicators of climatic change.
Knowledge of summer forest habitat associations of the nine listed bat species in northern New England was nonexistent until studies were initiated on the Bartlett Experimental Forest.
www.fs.fed.us /ne/durham/4155/bartlett.htm   (4606 words)

  
 Gender Determination
2) Reptiles (and all classes other than Aves and Mammals) are heterothermic; mammals are homothermic-> this is the key to the differences except with birds.
This explains clearly why sex differences such as found with alligators take place in these heterothermic animals.
Females have been pretty much found to be the default (if you will) of most species.
www.newton.dep.anl.gov /askasci/mole00/mole00276.htm   (1315 words)

  
 No evidence for homeoviscous adaptation in a heterothermic tissue: tuna heat exchangers -- Fudge et al. 275 (3): 818 -- ...
This heterothermic tissue is a good model for the study of biochemical
composition along this heterothermic tissue would yield further
In summary, we found no evidence of adaptive differences in phospholipid head groups or acyl chains along the heterothermic
ajpregu.physiology.org /cgi/content/full/275/3/R818   (3232 words)

  
 A definition of internal constancy and homeostasis in the context of non-equilibrium thermodynamics -- Recordati and ...
These levels are extrapolated from the body core temperatures at which the heart of homeothermic and heterothermic mammals spontaneously stops beating.
At these ‘threshold’ temperatures cellular functions are lost, and the organism is progressively and irreversibly driven to equilibrium with the external environment.
Figure 1, in addition to the levels of homeothermic and heterothermic
ep.physoc.org /cgi/content/full/89/1/27   (5951 words)

  
 Sex differences in the thermoregulation and evaporative water loss of a heterothermic bat, Lasiurus cinereus, during ...   (Site not responding. Last check: 2007-11-06)
Sex differences in the thermoregulation and evaporative water loss of a heterothermic bat, Lasiurus cinereus, during its spring migration -- Cryan and Wolf 206 (19): 3381 -- Journal of Experimental Biology
Sex differences in the thermoregulation and evaporative water loss of a heterothermic bat, Lasiurus cinereus, during its spring migration
Racey, P. Environmental factors affecting the length of gestation in heterothermic bats.
intl-jeb.biologists.org /cgi/content/full/206/19/3381   (4918 words)

  
 Body temperature and locomotor capacity in a heterothermic rodent -- Wooden and Walsberg 207 (1): 41 -- Journal of ...
Choi, I., Cho, Y., Oh, Y. K., Jung, N. and Shin, H. Behavior and muscle performance in heterothermic bats.
Wooden, K. and Walsberg, G. Effect of environmental temperature on body temperature and metabolic heat production in a heterothermic rodent, Spermophilus tereticaudus.
Xiang, J., Weiguo, D. and Pingyue, S. Body temperature, thermal tolerance, and influence of temperature on sprint speed and food assimilation in adult grass lizards, Takydromus septentrionalis.
jeb.biologists.org /cgi/content/full/207/1/41   (3283 words)

  
 no snakes in Ireland   (Site not responding. Last check: 2007-11-06)
Possible explanation: The temperature in Ireland is, and has been in the geologic past, too cool (on the average)for most reptiles to survive.
Reptiles are heterothermic and can not operate without temperatures well within 70 degress for weeks on end to find enough food to withstand a winter.
Food availability may be an issue as well.
www.newton.dep.anl.gov /askasci/bio99/bio99467.htm   (166 words)

  
 Comparative Physiology of Carbonhydrate Metabolism in Heterothermic Animals - MARTIN,A.W.(ED.)   (Site not responding. Last check: 2007-11-06)
Comparative Physiology of Carbonhydrate Metabolism in Heterothermic Animals - MARTIN,A.W.(ED.)
MARTIN,A.W.(ED.) Comparative Physiology of Carbonhydrate Metabolism in Heterothermic Animals
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www.antiqbook.com /boox/mikesh/M1675-8913.shtml   (73 words)

  
 EnvBio Projects   (Site not responding. Last check: 2007-11-06)
This project aims to analyse the structural evolution of the SP-C protein, to determine whether temperature, as a selection pressure, has led to alterations in surfactant protein sequence, which may aid their function.
Are there sequence motifs in SP-C specific to heterothermic mammals that may represent temperature adaptations?
The project will involve the nucleotide sequencing of the SP-C gene from a range of pairs of related mammal species in which one member undergoes torpor or hibernation and its near relative does not.
www.ees.adelaide.edu.au /prospective/honours/programs/envbiolprojects.html   (14937 words)

  
 Metabolic adjustments during daily torpor in the Djungarian hamster -- Heldmaier et al. 276 (5): 896 -- AJP - ...
Low-temperature carbon utilization is regulated by novel gene activity in the heart of a hibernating mammal.
Bickler, P. balance of a heterothermic rodent: comparison of sleep, torpor, and awake states.
Enzymes of the normothermic and hibernating bat Myotis lucifugus: temperature as a modulator of pyruvate kinase.
ajpendo.physiology.org /cgi/content/full/276/5/E896   (4932 words)

  
 Dr. Gecko: Feeding A Leopard Gecko
Because leopard geckos are ectothermic, their body temperatures will depend on the external environment, as opposed to internal metabolism such as in humans.
These geckos are also heterothermic which means they can demonstrate a wide range of internal body temperatures that are directly related to their environmental conditions.
The environmental temperatures in your gecko's enclosure can affect:
www.drgecko.com /feed.htm   (367 words)

  
 hunker maysin palladiferous somatognostic dertrotheca graininess crain revered granatum schultenite passionlessness ...   (Site not responding. Last check: 2007-11-06)
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uselessword.com /EquipmenT   (420 words)

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