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Are blackcaps current winners in the evolutionary struggle against the common cuckoo?
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SYSNO ASEP 0103158 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve SCOPUS Název Are blackcaps current winners in the evolutionary struggle against the common cuckoo? Překlad názvu Jsou pěnice černohlavé současnými vítězi v evolučním zápasu s kukačkou obecnou? Tvůrce(i) Honza, Marcel (UBO-W) RID, SAI, ORCID
Procházka, Petr (USMH-B)
Stokke, B. G. (NO)
Moksnes, A. (NO)
Roskaft, E. (NO)
Čapek Jr., Miroslav (UBO-W) RID, ORCID, SAI
Mrlík, Vojtěch (UBO-W)Zdroj.dok. Journal of Ethology. - : Springer - ISSN 0289-0771
Roč. 22, č. 2 (2004), s. 175-180Poč.str. 6 s. Jazyk dok. eng - angličtina Země vyd. JP - Japonsko Klíč. slova brood parasitism ; Cuculus canorus ; Sylvia atricapilla Vědní obor RIV EG - Zoologie CEP GA206/00/P046 GA ČR - Grantová agentura ČR IAA6093203 GA AV ČR - Akademie věd CEZ AV0Z6093917 - UBO-W EID SCOPUS 4344702342 Anotace Blackcaps Sylvia atricapilla reject artificial cuckoo eggs, and their eggs vary little in appearance within clutches, whereas among clutches eggs vary considerably. Low variation within clutches facilitates discrimination of parasitic eggs, whereas high variation among clutches makes it harder for the cuckoo to mimic the eggs of a certain host species. These traits have most probably evolved as counteradaptations against brood parasitism by the common cuckoo Cuculus canorus, even though blackcaps are not regularly parasitised today. In this study, we investigated how fine-tuned the rejection of parasitic eggs is in this species by introducing three types of eggs into their nests: a real non-mimetic egg the approximate size of a cuckoo egg, an artificial mimetic egg the size of a cuckoo egg and a real conspecific egg. Pracoviště Ústav biologie obratlovců Kontakt Hana Slabáková, slabakova@ivb.cz, Tel.: 543 422 524 Rok sběru 2005
Počet záznamů: 1