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人工饲养条件下扬子鳄的营巢和产卵行为
引用本文:张方,吴孝兵,孟维志,朱家龙.人工饲养条件下扬子鳄的营巢和产卵行为[J].动物学研究,2006,27(2):151-156.
作者姓名:张方  吴孝兵  孟维志  朱家龙
作者单位:1. 安徽师范大学,生命科学学院,重要生物资源的保护及利用安徽省重点实验室,安徽,芜湖,241000;中国科学院动物研究所,北京,100080
2. 安徽师范大学,生命科学学院,重要生物资源的保护及利用安徽省重点实验室,安徽,芜湖,241000
3. 安徽省扬子鳄繁殖研究中心,安徽,宣城,242034
基金项目:国家自然科学基金(30270213),安徽省优秀青年基金(04043049),安徽省高校生物环境与生态安全省级重点实验室基金,安徽省教育厅基金(2004kj175),安徽师范大学校青年基金(160720508)资助
摘    要:2003~2005年,利用红外线摄像仪,对人工饲养条件下扬子鳄(Alligatorsinensis)的营巢和产卵行为进行了研究。扬子鳄在产卵前,有营造后肢落脚洞的行为;在产卵后期,一边产卵,一边覆盖。为探讨气候对营巢的影响,采用线性回归对气候和扬子鳄营巢开始时间进行分析后的结果表明,对营巢开始时间影响最大的是4月的平均气温,较高的平均气温会导致扬子鳄营巢开始时间提前。运用主成分分析饲养条件下巢址的环境因子,得出巢址的植被盖度、离水源距离等对扬子鳄的巢址利用有较大影响。

关 键 词:人工饲养  扬子鳄  营巢  产卵
文章编号:0254-5853(2006)02-0151-06
收稿时间:2005-10-17
修稿时间:2005-10-172006-01-11

Ecology on the Making Nest and Laying Eggs of Chinese Alligator (Alligator sinensis) under Artificial Feeding Conditions
ZHANG Fang,WU Xiao-bing,MENG Wei-zhi,ZHU Jia-long.Ecology on the Making Nest and Laying Eggs of Chinese Alligator (Alligator sinensis) under Artificial Feeding Conditions[J].Zoological Research,2006,27(2):151-156.
Authors:ZHANG Fang  WU Xiao-bing  MENG Wei-zhi  ZHU Jia-long
Institution:1. College of Life Science, Anhui Normal University, Wuhu 241000, China; 2. Institute of Zoology, the Chinese Academy of Science, Beijing 100080, China ; 3.Anhui Research Center for Chinese Alligator Reproduction, Xuanzhou 242034, China
Abstract:Nest-making and egg-laying behaviors of the Chinese alligator (Alligator sin ensis) under captive-breeding conditions were studied during a 3-year period field work from 2003 to 2005 using the infrared video camera. And for the first time, a behavior of digging a hole for the hind legs before the eggs were laid was observed. The eggs were not covered all at once, but were covered as the egg s were laid towards the late part of the egg-laying period. To understand the c onnection between climate and nest-making time, an analysis was conducted based on the theory of linear regression, which showed that the mean temperature of A pril had the strongest effect upon nest-making time: the higher the mean temper ature of April, the earlier the nest-making time started. Principal Components Analysis was also conducted to ascertain the effect of surrounding environment f actors upon the choice of nesting sites, which indicated that the level of veget ation canopy and the distance to the water sources were among the principal comp onents.
Keywords:Artificial feeding  Chinese alligator (Alligator sinensis)  Making nest  Lay ing egg  
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