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Do nest light conditions affect rejection of parasitic eggs? A test of the light environment hypothesis

SYSNO ASEP	0359071
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Do nest light conditions affect rejection of parasitic eggs? A test of the light environment hypothesis
Author(s)	Honza, Marcel (UBO-W)_{RID, SAI, ORCID} Procházka, Petr (UBO-W)_{RID, ORCID, SAI} Morongová, Klára (UBO-W) Čapek, Miroslav (UBO-W)_{RID, ORCID, SAI} Jelínek, Václav (UBO-W)_{RID, SAI, ORCID}
Number of authors	5
Source Title	Ethology. - : Wiley - ISSN 0179-1613 Roč. 117, č. 6 (2011), s. 539-546
Number of pages	8 s.
Language	eng - English
Country	DE - Germany
Keywords	Acrocephalus arundinaceus ; nest light conditions ; egg recognition ; Great reed warbler ; cuckoo
Subject RIV	EG - Zoology
R&D Projects	IAA600930903 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
	LC06073 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
CEZ	AV0Z60930519 - UBO-W (2005-2011)
UT WOS	000290408200008
EID SCOPUS	79955711583
DOI	10.1111/j.1439-0310.2011.01900.x
Annotation	Although many factors affecting host egg-recognition processes have already been evaluated, only a few attempts have been made to test the importance of light conditions in microhabitats of host nests. Here, we examined whether the objectively measured nest light environment affects great reed warbler responses towards real common cuckoo eggs. More specifically, we predicted that parasitic eggs will be rejected with a lower frequency from nests placed in darker conditions than those in lighter conditions. However, we found no effect of the ambient light on egg-rejection behaviour alone, but the photosynthetically active radiation exhibited a positive interactive effect with chromatic contrast between cuckoo and host eggs. Most rejection events were accomplished when cuckoo eggs of poor mimicry were laid in well-lit nests. Our study suggests that this phenomenon may have important implications for the evolution of egg mimicry and host egg discrimination.
Workplace	Institute of Vertebrate Biology
Contact	Hana Slabáková, slabakova@ivb.cz, Tel.: 543 422 524
Year of Publishing	2012

Number of the records: 1