کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9148999 | 1166146 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The effect of ambient temperature and simulated predation risk on fasting-induced nocturnal hypothermia of pigeons in outdoor conditions
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم کشاورزی و بیولوژیک (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: The effect of ambient temperature and simulated predation risk on fasting-induced nocturnal hypothermia of pigeons in outdoor conditions The effect of ambient temperature and simulated predation risk on fasting-induced nocturnal hypothermia of pigeons in outdoor conditions](/preview/png/9148999.png)
چکیده انگلیسی
Body temperature (Tb) of semi-free pigeons maintained in outdoor conditions was measured for 12 weeks during two winters using intra-abdominal data loggers. In fed birds, the amplitude of the Tb cycle was about 2.5 °C and diurnal Tb increased with decreasing ambient temperature (Ta), but nocturnal Tb did not correlate with Ta. In fasted birds, a well-defined nocturnal hypothermia was seen with minimal Tb's reaching 36 °C. The depth of fasting-induced nocturnal hypothermia increased with decreasing temperature, and at the lowest Ta's (â25 °C) a slight diurnal hypothermia was also seen. The presence of a perched avian predator (a stuffed goshawk) had no effect on the fasting-induced hypothermia, but a “flying” goshawk attenuated the hypothermic response.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Thermal Biology - Volume 30, Issue 5, July 2005, Pages 392-399
Journal: Journal of Thermal Biology - Volume 30, Issue 5, July 2005, Pages 392-399
نویسندگان
Mirja Laurila, Esa Hohtola,