Publication
Title
Hatching vocalisations in free-living rockhopper penguins
Author
Abstract
We analysed the vocalisation behaviour of Rockhopper Penguin chicks Eudyptes chrysocome during hatching. Hatching vocalisation rates (in number per minute) were not consistently influenced by ambient air temperature. They did not differ between chicks hatching from first-laid eggs (which are smaller, hatch second, and usually suffer brood reduction) and chicks hatching from second-laid eggs (which usually develop into fledglings). Hatchlings did not show significantly different vocalisation rates in the presence of a sibling during hatching. Hatching vocalisation rates also did not increase between the penultimate day and the last day before hatching. These results suggest that Rockhopper Penguin chicks might gain little benefit (parental care) from increased vocal behaviour at the late incubation stage.
Language
English
Source (journal)
Ardea / Nederlandse Ornithologische Unie. - Arnhem
Publication
Arnhem : 2013
ISSN
0373-2266
Volume/pages
101:1(2013), p. 39-44
ISI
000320894100006
Full text (publisher's version - intranet only)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 21.05.2013
Last edited 07.07.2017
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