Number of the records: 1

Factors affecting sleep/vigilance behaviour in incubating mallards

SYSNO ASEP	0358876
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Factors affecting sleep/vigilance behaviour in incubating mallards
Author(s)	Javůrková, V. (CZ) Hořák, D. (CZ) Kreisinger, J. (CZ) Klvaňa, P. (CZ) Albrecht, Tomáš (UBO-W)_{RID, SAI, ORCID}
Number of authors	5
Source Title	Ethology. - : Wiley - ISSN 0179-1613 Roč. 117, č. 4 (2011), s. 345-355
Number of pages	11 s.
Language	eng - English
Country	US - United States
Keywords	mallard ; vigilance ; antipredation behaviour ; incubation
Subject RIV	EG - Zoology
R&D Projects	KJB601110803 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	000288164800008
EID SCOPUS	79952404880
DOI	10.1111/j.1439-0310.2011.01878.x
Annotation	Vigilance is a behavioural tactic that allows individuals to assess predation risk. In contrast, sleep is behavioural state with energy-saving function, but increasing susceptibility to predation. Sleeping birds resolve this conflict by interrupting sleep with short periods of eye opening (termed 'scans') during vigilant sleep. Here, we investigated the influence of nest vegetation concealment, time of day and sleeping postures on the sleep/vigilance trade-off in incubating Mallards (Anas platyrhynchos). We found that incubating females increased their vigilance with increasing nest vegetation cover facing the vigilant eye during both the day and the night periods; however, mean nest vegetation concealment did not affect female vigilance. Our data show that the nest vegetation concealment regardless of visual abilities during different light conditions, time of day and sleeping posture play an underlying role in antipredator vigilance during sleep in this cryptic ground-nesting bird.
Workplace	Institute of Vertebrate Biology
Contact	Hana Slabáková, slabakova@ivb.cz, Tel.: 543 422 524
Year of Publishing	2011

Number of the records: 1