Do Ostriches Struthio Camelus Reject Parasitic Eggs by Making use of Colour as a Cue?

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dc.contributor.authorMagige, Flora J.
dc.contributor.authorStokke, Bård G.
dc.contributor.authorRøskaft, Eivin
dc.date.accessioned2016-06-16T18:24:52Z
dc.date.available2016-06-16T18:24:52Z
dc.date.issued2010-11
dc.description.abstractThe Ostrich communal breeding system involves several females laying in a single nest. Only the ‘major’ female and the territorial male, however, provide parental care from incubation to fledging of chicks. Eggs are turned and displaced frequently upon the onset of incubation, and the major female evicts excess eggs out of the nest when the number of eggs is above a specific threshold level. A previous study indicated that the major female ostrich recognises her own eggs and selectively evicts eggs of minor females based on size, shape and shell texture. Our aim was to investigate if accepted and ejected eggs differ in colour characteristics. We quantified colour by measuring egg reflectance spectra, which were subsequently analysed using a visual model approach. Within clutches, there were no significant differences in colour between accepted and ejected eggs. These results suggest that female ostriches do not discriminate against foreign eggs based on deviations in colour.en_US
dc.identifier.citationMagige, F.J., Stokke, B.G. and Røskaft, E., 2010. Do Ostriches Struthio camelus reject parasitic eggs by making use of colour as a cue?. Ostrich, 81(3), pp.247-250.en_US
dc.identifier.doi10.2989/00306525.2010.519864
dc.identifier.urihttp://hdl.handle.net/20.500.11810/2523
dc.language.isoenen_US
dc.publisherTaylor & Francisen_US
dc.titleDo Ostriches Struthio Camelus Reject Parasitic Eggs by Making use of Colour as a Cue?en_US
dc.typeJournal Article, Peer Revieweden_US
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