IMIS - Marine Research Groups | Compendium Coast and Sea

IMIS - Marine Research Groups

[ report an error in this record ]basket (0): add | show Print this page

Hatching vocalisations in free-living Rockhopper Penguins
Poisbleau, M.; Demongin, L.; Hardouin, L.A.; Carslake, D.; Eens, M.; Quillfeldt, P. (2013). Hatching vocalisations in free-living Rockhopper Penguins. Ardea 101(1): 39-44
In: Ardea. Nederlandse Ornithologische Unie: Arnhem & Leiden. ISSN 0373-2266; e-ISSN 2213-1175, more
Peer reviewed article  

Available in  Authors 

Keyword
    Eudyptes chrysocome (Forster, 1781) [WoRMS]
Author keywords
    Rockhopper Penguin; hatching vocalisation behaviour; egg dimorphism; airtemperature

Authors  Top 
  • Poisbleau, M., more
  • Demongin, L., more
  • Hardouin, L.A.
  • Carslake, D.
  • Eens, M., more
  • Quillfeldt, P.

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.

All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy Top | Authors