Egg mass in an asynchronously hatching parrot: does variation offset constraints imposed by laying order?

@article{Budden2005EggMI,
  title={Egg mass in an asynchronously hatching parrot: does variation offset constraints imposed by laying order?},
  author={Amber E. Budden and Steven R. Beissinger},
  journal={Oecologia},
  year={2005},
  volume={144},
  pages={318-326}
}
Life history theory predicts phenotypic trade-offs between the number and quality of offspring produced. Intraspecific variation in egg mass is common in birds and increased egg size can have positive effects on offspring fitness. However, evidence of a trade-off with clutch size is limited. We analyzed variation in mass of 5,743 Green-rumped parrotlet (Forpus passerinus) eggs laid over 15 years to evaluate the potential for facultative adjustment of egg mass and factors governing variation… CONTINUE READING
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