Meathrel C E, Bradley J S, Wooller R D, Skira I J
Biological Sciences, Murdoch University, 6150, Western Australia, Australia.
Department of Parks, Wildlife and Heritage, 7001, Hobart, Tasmania, Australia.
Oecologia. 1993 Mar;93(2):162-164. doi: 10.1007/BF00317665.
Eggs were exchanged between 50 pairs of shorttailed shearwaters Puffinus tenuirostris on Great Dog Island, Bass Strait, Australia, in an attempt to distinguish the intrinsic effects of egg-size from any effects stemming from differential quality of parental care. At 64 "experimental" nests, large and small eggs were exchanged whereas at 36 "control" nests, eggs of equivalent, medium, size were exchanged. Egg-size appeared independent of maternal effects. In both groups, hatching and fledging success were independent both of eggsize and of the body condition of the attending parents. This suggests that breeding success in these birds may be more closely related to the behavioural traits of parents than to physiological factors.
在澳大利亚巴斯海峡大狗岛，对50对短尾鹱（Puffinus tenuirostris）进行了卵的交换，以区分卵大小的内在影响与因亲代抚育质量差异产生的任何影响。在64个“实验”巢中，交换了大卵和小卵，而在36个“对照”巢中，交换了大小相当的中等大小的卵。卵的大小似乎与母体影响无关。在两组中，孵化成功率和出飞成功率均与卵的大小以及育雏亲鸟的身体状况无关。这表明这些鸟类的繁殖成功率可能与亲鸟的行为特征而非生理因素关系更为密切。
