极昼环境下阿德利企鹅育雏期鸣声的日节律  

The daily vocal pattern of Adélie penguin during brooding period in the polar day

作　　者：张剑 夏灿玮[1] 张雁云[1] ZHANG Jian;XIA Can-wei;ZHANG Yan-yun(Ministry of Education Key Laboratory for Biodiversityand Ecological Engineering,College of Life Sciences,Beijing Normal University,Beijing 100875,China)

机构地区：[1]生物多样性与生态工程教育部重点实验室,北京师范大学生命科学学院,北京100875

出　　处：《生态学杂志》2021年第4期1098-1106,共9页Chinese Journal of Ecology

基　　金：国家海洋局极地考察办公室(RSFOCC2020-2022-No.5&6);国家自然科学基金项目(31872243)资助。

摘　　要：以24 h为周期的生物活动的日节律,主要受到昼夜交替的影响。在缺乏昼夜波动的环境中,生物活动是否维持24 h的日节律,尚存在争议。本研究以恩克斯堡岛(74°54’S,163°39’E)繁殖的阿德利企鹅(Pygoscelis adeliae)种群为对象,探讨极昼环境下鸣声的日节律。阿德利企鹅主要在育雏时发出鸣叫,用于亲子联络。在企鹅繁殖聚居地布设5台自动录音机,于2018年1月24日—2月1日进行连续的录音监测。通过鸣声自动识别技术,提取了录音中阿德利企鹅的鸣声,并对鸣声的日节律以及鸣声强度与环境因素的关联进行了研究。结果表明:阿德利企鹅的鸣声不具有24 h为周期的日节律,鸣声强度主要受环境湿度和温度的影响。本研究结果为探讨极昼环境下动物行为的日节律提供了基础资料。Daily rhythms enable organisms to adapt to the daily fluctuations of environmental factors.There is a debate on whether organisms would exhibit 24-h rhythms when living in habitats without obvious daily cycles of external signals.To answer this question,we investigated the daily vocal pattern of Adélie penguins(Pygoscelis adeliae)breeding on Inexpressible Island(74°54’S,163°39’E).Adélie penguins use calls to contact with their chicks during the brooding period.Recordings were made using five passive acoustic recorders during January 24 th to February 1 st,2018.Calls were detected through automatic recognition.The daily rhythm and the relationship between the intensity of calls and environmental factors were studied.There was no prevailing daily vocal pattern.Vocal activity was positively related with environmental humidity and temperature.Our results would help understand the behavior rhythm in the polar day.

关 键 词：恩克斯堡岛 自动录音 声音识别 环境因素 

分 类 号：Q958[生物学—动物学]