| 贾陈喜,王众,孙悦华.2008.灰蓝姬鹟暂时弃卵的低温耐受性.动物学杂志,43(2):127-129. |
| 灰蓝姬鹟暂时弃卵的低温耐受性 |
| Hypothermic Tolerance of Egg Neglect in the Ficedula tricolor |
| 投稿时间：2007-09-06 修订日期：2008-01-03 |
| DOI： |
| 中文关键词: 灰蓝姬鹟 低温耐受性 暂时弃卵 |
| 英文关键词:Slaty-blue Flycatcher (Ficedula tricolor) Hypothermic tolerance Egg neglect |
| 基金项目:国家自然科学基金项目(No.30370204) |
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| 中文摘要: |
| 鸟类的亲鸟有时会暂时放弃孵卵的义务,使正在发育的胚胎连续数小时甚至几天处于较低的环境温度条件下。在甘肃莲花山自然保护区采用温度数据自动记录仪对一只灰蓝姬鹟(Ficedulatricolor)雌鸟的孵卵节律进行了监测,记录到雌鸟3次长时间的异常离巢,离巢时间分别为4.45h、1.17h和5.32h。雌鸟离巢期间,巢温最低降至7.7℃,并且在2次较长时间的异常离巢时,巢温低于10℃的时间分别达到了3.83h和4.60h。此后,雌鸟恢复了正常孵卵直至雏鸟出壳。 |
| 英文摘要: |
| Many avian parents temporarily abandon incubation duties, leaving the developing embryo to ambient thermal conditions from several hours up to several consecutive days with little or no effect on hatchability. The hypothermic tolerance of the eggs in passerines is poorly known. Three abnormally long off-bouts (4.45 h, 1.17 h and 5.32 h bouts, respectively) were observed in an incubating Slaty-blue Flycatcher (Ficedula tricolor) female at the Lianhuashan Natural Reserve, Gansu Province, China. The nest temperature was measured and recorded by a temperature data logger at 50-second intervals. During the absences the nest temperature dropped to a minimum of 7.7℃ and included two periods (3.83 h and 4.60 h) when nest temperatures were below 10℃. Nest attendance resumed thereafter and continued normally until the eggs hatched. |
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