Effect of brood size on growth in the chinstrap penguin: A field experiment

Juan Moreno; Javier Vinuela; Josabel Belliure

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Effect of brood size on growth in the chinstrap penguin: A field experiment

机译：亲鱼大小对下巴企鹅生长的影响：田间试验

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In order to determine if the patterns of chick growth and mortality observed in two-chick broods of the chinstrap Penguin (Pygoscelis antarctica) are affected by the feeding capacity of parents, we performed an experimental brood reduction at hatching by removing one sibling in some broods and comparing the growth and mortality patterns of these single chicks with those of control broods with two chicks. Chicks in reduced broods had longer flippers than those in control broods at 15, 21 and 47 days of age, and longer bills at 15, 21 and 32 days, but no differences in mass were found.

机译：为了确定在下颚企鹅（Pygoscelis antarctica）的两小鸡育雏中观察到的雏鸡生长和死亡率的模式是否受到父母的摄食能力的影响，我们通过去除一些育雏中的一个兄弟姐妹进行了孵化实验育雏并比较这些单只小鸡与有两只小鸡的对照雏鸡的生长和死亡率模式。在15、21和47天龄时，育雏小鸡的鳍状肢长于对照组，而在15、21和32天时雏鸡的变长雏，但在质量上没有差异。

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《Journal of Field Ornithology》 |1998年第2期|p.269-275|共7页
作者
Juan Moreno; Javier Vinuela; Josabel Belliure;
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收录信息美国《科学引文索引》(SCI);
原文格式 PDF
正文语种 eng
中图分类鸟纲;
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Effect of brood size on growth in the chinstrap penguin: A field experiment

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