Energiehaushalt von Tieren

  title={Energiehaushalt von Tieren},
  author={Gerhard Heldmaier and Gerhard Neuweiler},
Tiere gewinnen die zum Leben notwendige Energie aus der Verbrennung von Nahrungsstoffen. Diese Erkenntnis war eine der grosen wissenschaftlichen Entdeckungen des 18. Jahrhunderts, und ihr Beweis ist vor allem den Experimenten von Antoine Laurent Lavoisier (1743–1794) zu verdanken. Er wies nach, dass Tiere ein Gas aus der Luft entnehmen, das im Korper verbraucht wird, wie bei einer Verbrennung, und die in Tieren entstehende Warme wird an die Umgebung abgegeben. Das Gas nannte er Sauerstoff und… Expand
Seasonal Variations in Energy Turnover and Body Temperature in Free-Living Edible Dormice, Glis glis
Seasonal changes of energy turnover and body temperature (T b) in edible dormice during periods of high and low food availability are investigated to understand energy saving strategies, besides the use of hibernation and torpor, and patterns strongly suggest that edible dormICE reduce their T b to save energy during period of limited food supply. Expand
The effect of diet, temperature and intermittent low oxygen on the metabolism of rainbow trout.
The decrease in retained energy under low oxygen conditions suggests that there is scope to improve the performance of SP diets under challenging conditions; however, this study suggests that simply increasing the dietary protein content is not a remedy, and other strategies need to be explored. Expand


Der ruheumsatz von Vögeln als Funktion der Tageszeit und der Körpergröße
Der Umsatz nüchterner, im Dunkeln sitzender Vögel hat einen ausgeprägten Tagesgang; die Sauerstoffaufnahme liegt in der Aktivitätszeit (α) rund 25% höher als in der Ruhezeit (ϱ). Eine AufarbeitungExpand
Heat dissipation and energetic efficiency in animal anoxibiosis: Economy contra power
The calorimetric and biochemical trends during aerobic-anoxic transitions are consistent with thermodynamic optimum functions of catabolic pathways, and Cellular changes of pH and adenylate phosphorylation potential are recognized as regulatory mechanisms in the energetic switching to propionate production. Expand
Life in the Cold
It is proposed that when well fed animals hibernate in comparatively mild climates, with food available, they are using the winter cold as a resource and "putting themselves on ice" until the next breeding season, which means echidnas are hibernating in mild climates for energy advantage, not from energetic necessity. Expand
The physiology of hibernation among painted turtles: the midland painted turtle (Chrysemys picta marginata).
It is suggested that it is ecologic, rather than phylogenetic, relationships that determine the responses of painted turtles to prolonged submergence associated with hibernation. Expand
Locomotory energetics in dasyurid marsupials
Rates of oxygen consumption were measured during locomotion in five species of marsupials of the family Dasyuridae, and metabolic scope in these animals is similar over the size range used and may be greater than in eutherians. Expand
Succinate and alanine as anaerobic end-products in the diving turtle (Chrysemys picta bellii).
  • L. Buck
  • Biology, Medicine
  • Comparative biochemistry and physiology. Part B, Biochemistry & molecular biology
  • 2000
It is concluded that succinate and alanine concentrations do increase in the anoxic turtle but are minor anaerobic end-products. Expand
Homologues of the uncoupling protein from brown adipose tissue (UCP1): UCP2, UCP3, BMCP1 and UCP4.
In this contribution we aim to summarise our work of recent years and, without seeking to be exhaustive, to describe our thinking about the `uncoupling proteins' (UCP). We make no apology for ourExpand
Chemical communication in heliothine moths
Receptor neurons of both types showed variations in temporal response characteristics, and Phasic neurons followed short, rapid stimulus pulses better than tonic neurons, suggesting that they may encode different features of an intermittent pheromone plume. Expand
Throughout a period from early November until the end of February, spontaneous torpidity was demonstrated by the Mexican ground squirrel Citellus mexicanus parvidens (Mearns) at room temperaturesExpand
Energy consumption of European and African shrews
Probując odpowiedziec na pytanie czy poziom metabolizmu ryjowek jest rzeczywiście niezwykle wysoki, zmierzono zuzycie tlenu u 13 roznych gatunkow. Z gatunkow europejskich byly to: Sorex araneus, S.Expand