...-tolerant Drosophila species may enter coma as a result of processes unrelated to muscle depolarization as their V m was not significantly depolarized at their chill coma temperatures. Chill tolerance Critical thermal minimum Cold exposure Comparative Inter-species Many insects succumb...

.... 15 10 2013 10 12 2013 © 2014. Published by The Company of Biologists Ltd 2014 Acclimatisation Cold exposure Helox Phenotypic flexibility Thermogenic capacity The lowest environmental temperature to which an endotherm can defend normothermic body temperature ( T b...

...P. Venditti; L. Di Stefano; S. Di Meo Summary Exposure of homeothermic animals to low environmental temperature is associated with oxidative stress in several body tissues. Because cold exposure induces a condition of functional hyperthyroidism, the observation that tissue oxidative stress also...

... key parameters of lipid metabolism in a highly aerobic shorebird: the ruff sandpiper Philomachus pugnax . In this study, we have quantified the effects of cold exposure because such measurements are presently impossible during flight. Lipolytic rate was monitored by continuous infusion of 2-[ 3 H...

.... The present study aimed to examine whether Brandt's voles Lasiopodomys brandtii could adjust energy intake and thermogenesis to accommodate simultaneous lactation and cold exposure. The voles were placed into two temperature treatments: warm(23±1°C) and cold (5±1°C). Animals at each temperature treatment were...

... concerning changes in glutathione peroxidase activity and mitochondrial protein content favour the idea that dissimilarities in effects of cold exposure and T 3 treatment could depend on differences in serum levels of T 4 . Overall, our results lead to the conclusion that the hyperthyroid state...

... max ; mean 10.6 g day −1 ) and energy assimilation ( A max ; mean 141 kJ day −1 ) were not significantly higher in the selected than in the control mice. However, in cold-exposure trials, mice from the selected lines maintained body mass better than did mice from the control lines. C max and A max...

... during cold exposure was also shown by the composition of the gas in the interclavicular air sac. decreased from 11.95 kPa at 20°C to 10.24kPa at 5°C, while the corresponding increase in was from 6.61 to 7.50 kPa. Oxygen extraction, calculated from and O 2 content of the inspired air, increased from...

...C. Bech; W. Rautenberg; B. May ABSTRACT The respiratory responses to cold ambient temperatures in birds have only rarely been described. Bernstein & Schmidt-Nielsen (1974) studied the fish crow (Corvus ossifragus) during moderate cold exposure, while Bouverot, Hildwein & Oulhen (1976...