-
Article
Telomerase activity in the bats Hipposideros armiger and Rousettus leschenaultia
Telomerase activity was examined in two species of bat, Hipposideros armiger and Rousettus leschenaultia, which have similar body mass and lifespan but differ in use of hibernation. We found that telomerase activ...
-
Article
Boom and bust: a review of the physiology of the marsupial genus Antechinus
The marsupial genus Antechinus is a group of small carnivorous marsupials from the order Dasyuromorphia (Family Dasyuridae) and is found in eastern Australia. The life history of all species in the genus is chara...
-
Article
Photoperiod affects daily torpor and tissue fatty acid composition in deer mice
Photoperiod and dietary lipids both influence thermal physiology and the pattern of torpor of heterothermic mammals. The aim of the present study was to test the hypothesis that photoperiod-induced physiologic...
-
Article
Photoperiod and the timing of reproduction in Antechinus flavipes (Dasyuridae: Marsupialia)
The effect of an artificial, unchanging photoperiod regime was examined in comparison to a natural photoperiodic regime on the reproductive pattern in Antechinus flavipes, a small dasyurid marsupial which in the ...
-
Article
Effect of torpor on the water economy of an arid-zone marsupial, the stripe-faced dunnart (Sminthopsis macroura)
Metabolic rate and evaporative water loss (EWL) were measured for a small, arid-zone marsupial, the stripe-faced dunnart (Sminthopsis macroura), when normothermic and torpid. Metabolic rate increased linearly wit...
-
Article
Effects of temperature acclimation on maximum heat production, thermal tolerance, and torpor in a marsupial
Marsupials, unlike placental mammals, are believed to be unable to increase heat production and thermal performance after cold-acclimation. It has been suggested that this may be because marsupials lack functi...
-
Article
The effects of cortisol and testosterone on renal function in male Antechinus stuartii (Marsupialia)
Seasonal changes in the physiology of Antechinus stuartii result in complete male mortality after mating. The most important endocrine changes in males are large rises in plasma testosterone and cortisol concent...
-
Article
Seasonal changes in glomerular filtration rate in Antechinus stuartii (Marsupialia: Dasyuridae)
The small marsupial Antechinus stuartii experiences a synchronised life cycle that culminates in complete male mortality (within 3 weeks) following the 1 week mating period in mid-August (late winter). There are...
-
Article
Red cell metabolism in a small dasyurid marsupial, the brown antechinus (Antechinus stuartii)
Red cell metabolism was examined in a small dasyurid marsupial, the brown antechinus Antechinus stuartii. There were significant differences in haematocrit with regard to sex and the season. Compared to other mar...
-
Article
The degree of dietary fatty acid unsaturation affects torpor patterns and lipid composition of a hibernator
Diets rich in unsaturated and polyunsaturated fatty acids have a positive effect on mammalian torpor, whereas diets rich in saturated fatty acids have a negative effect. To determine whether the number of doub...
-
Article
The role of photoperiod in the timing of reproduction in the Dasyurid Marsupial Antechinus stuartii
Antechinus stuartii has one highly synchronized mating period which occurs at the same time each year. An analysis of the time of reproduction in 162 populations of A. stuartii shows that the onset of the mating...
