Parental quality and egg size affect chick survival in a precocial bird, the lapwing Vanellus vanellus
Parental quality and egg size affect chick survival in a precocial bird, the lapwing Vanellus vanellus
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DOI：
10.1007/s004420050128
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发表时间：
1997-03-01
期刊：
影响因子：
2.7
通讯作者：
Gotmark, F
中科院分区：
文献类型：
--
作者：
Blomqvist, D;Johansson, OC;Gotmark, F
6年来，在瑞典西南部研究了蛋大小和亲本品质对羽化雏鸟存活率的影响。来自大鸡蛋的雏鸟在孵化时更重，存活时间明显好于来自小鸡蛋的雏鸟。为了控制亲本品质对蛋大小和雏鸡存活率的混杂效应，我们进行了为期2年的杂交饲养试验，大小蛋巢间互换窝巢。在对照窝中，来自大蛋的雏鸟比来自小蛋的雏鸟存活得更好，但我们发现两个交换窝巢的雏鸡的存活率没有显著差异。因此，蛋的大小并不独立于亲本质量而影响雏鸡的存活。初出茅庐的成功随着父母年龄和/或经验以及女性体重的增加而增加。因此，蛋的大小和亲本的质量都会影响雏鸡的成活。
Effects of egg size and parental quality on lapwing Vanellus vanellus chick survival were studied in southwestern Sweden over 6 years. Chicks from large eggs were heavier at hatching and survived significantly better than those from small eggs. To control for the confounding effect of parental quality on egg size and chick survival, we performed a cross-fostering experiment during 2 years, exchanging clutches between nests with large and small eggs. In control clutches, chicks from large eggs survived better than those from small eggs, but we found no significant difference in chick survival between exchanged clutches. Thus, egg size did not affect chick survival independently of parental quality. Fledging success increased with parental age and/or experience, and with female body mass. Hence, both egg size and parental quality affect chick survival in the lapwing.