Journalartikel

Jahr der Veröffentlichung: 2006

Seiten: 315-320

Zeitschrift: International Journal of Waterbird Biology

Bandnummer: 29

Heftnummer: 3

ISSN: 1524-4695

DOI Link: https://doi.org/10.1675/1524-4695(2006)29[315:DAPOBC]2.0.CO;2

Verlag: Waterbird Society

Abstract: 
A previous study of begging in Cory's Shearwaters (Calonectris diomedea) found that chicks convey information about their body condition through the number and rate of begging calls Littered during a feeding session. Parents delivered larger meals when chicks begged more intensely. Here we test whether acoustic properties of begging calls of Cory's Shearwaters are related to body condition of chicks, and whether parents are responsive to changes in acoustic parameters. Acoustic parameters, which were analyzed using semi-automatic call contour analysis, included the duration of calls and silent intervals, the minimum, mean and maximum frequency in a call and the number of frequency peaks within a call. We found that, in contrast to the number and rate of begging calls, acoustic parameters did not reflect chick body condition, and were not correlated with the meal size delivered by the attending adults.

Harvard-Zitierstil: Träger, I., Masello, J., Mundry, R. and Quillfeldt, P. (2006) Do acoustic parameters of begging calls of Cory's Shearwaters Calonectris diomedea reflect chick body condition?, International Journal of Waterbird Biology, 29(3), pp. 315-320. https://doi.org/10.1675/1524-4695(2006)29[315:DAPOBC]2.0.CO;2

APA-Zitierstil: Träger, I., Masello, J., Mundry, R., & Quillfeldt, P. (2006). Do acoustic parameters of begging calls of Cory's Shearwaters Calonectris diomedea reflect chick body condition?. International Journal of Waterbird Biology. 29(3), 315-320. https://doi.org/10.1675/1524-4695(2006)29[315:DAPOBC]2.0.CO;2