Colour characteristics of the blunt egg pole: cues for recognition of parasitic eggs as revealed by reflectance spectrophotometry

@article{Polaikov2007ColourCO,
  title={Colour characteristics of the blunt egg pole: cues for recognition of parasitic eggs as revealed by reflectance spectrophotometry},
  author={Lenka Pola{\vc}ikov{\'a} and Marcel Honza and Petr Proch{\'a}zka and J{\'a}n Topercer and B{\aa}rd Gunnar Stokke},
  journal={Animal Behaviour},
  year={2007},
  volume={74},
  pages={419-427}
}
Variation in appearance of parasitic and host eggs is an essential trait in the coevolutionary struggle between a brood parasite and its host. Here we examined the role of colour characteristics in the egg recognition in blackcaps, Sylvia atricapilla, assessed by (1) human vision and (2) spectrophotometry, including UV wavelengths. Since colour and spotting pattern within eggs are often highly variable, we also assessed three different parts of blackcap eggshell separately. We investigated the… CONTINUE READING
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