Number of the records: 1
Individual female common cuckoos Cuculus canorus lay constant egg types but egg appearance cannot be used to assign eggs to females
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SYSNO ASEP 0309451 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Individual female common cuckoos Cuculus canorus lay constant egg types but egg appearance cannot be used to assign eggs to females Title Samice kukaček kladou vejce konstantního typu, ale ten nemůže být použit k přiřazování k jednotlivým samicím Author(s) Moksnes, A. (NO)
Roskaft, E. (NO)
Rudolfsen, G. (NO)
Skjelseth, S. (NO)
Stokke, B. G. (NO)
Kleven, O. (NO)
Gibbs, H. L. (US)
Honza, Marcel (UBO-W) RID, SAI, ORCID
Taborsky, B. (CH)
Teuschl, Y. (CH)
Vogl, W. (AT)
Taborsky, M. (CH)Number of authors 12 Source Title Journal of Avian Biology. - : Wiley - ISSN 0908-8857
Roč. 39, č. 2 (2008), s. 238-241Number of pages 4 s. Language eng - English Country DK - Denmark Keywords host preference ; co-evolution ; parasitism Subject RIV EG - Zoology CEZ AV0Z60930519 - UBO-W (2005-2011) UT WOS 000253759300018 EID SCOPUS 40349100686 DOI https://doi.org/10.1111/j.2008.0908-8857.04158.x Annotation Females of the obligate brood parasitic common cuckoo Cuculus canorus are assumed to lay eggs of consistent colour and pattern and egg characteristics have been used to separate between different individuals. We tested the "constant egg-type hypothesis" in blind tests using test persons who grouped cuckoo eggs into "potential clutches" based on similarity in appearance. A correct classification of eggs laid by known (radiotagged) females supported the hypothesis. However, comparisons between maternity based on visual assessments and DNA-based parentage analyses revealed rather poor concordance between the two methods. Our findings indicate that egg characteristics cannot be used to separate between cuckoo females, even if they lay eggs with constant appearance. The reason is probably that there are only small or negligible variations in egg appearance between some females like mothers and daughters or other closely related individuals. Workplace Institute of Vertebrate Biology Contact Hana Slabáková, slabakova@ivb.cz, Tel.: 543 422 524 Year of Publishing 2009
Number of the records: 1