کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2841769 | 1165436 | 2006 | 7 صفحه PDF | دانلود رایگان |
We explore the physiological constraints of body temperature as related to body mass and ambient temperature during flight in endothermic dung beetles showing a mass-related breakpoint where species show strong vs. weak endothermy. We found two different strategies in the dung beetles prior to flight; larger beetles (>1.9 g) elevate and maintain their body temperature (Tb) at levels well above ambient temperature (Ta) whereas smaller beetles’ (<1.9 g) Tb tends to conform with Ta. Physiological constraints analysis revealed a constant maximum tolerated temperature (in flight) of 42 °C and a minimum temperature for flight of around 25 °C. These, with body mass, may play a role in thermal niche partitioning and geographical distribution patterns.
Journal: Journal of Insect Physiology - Volume 52, Issue 8, August 2006, Pages 854–860