Acoustic cues to development of African Penguins (<i>Spheniscus demersus</i>) begging calls
Avian begging calls mediate parent–offspring conflict and direct parental care to genetically related progeny. We found that the fundamental frequency of begging calls of African Penguins Spheniscus demersus decreases as the penguins age and gain mass, before reaching a lower plateau when the chick reaches about 1 kg. Our results suggest that the food solicitation signals of this species may inform parents of the offspring's body mass. Our results may also lead to the development of non‐invasive tools for facilitating censusing chick growth in wild colonies.
Authors
- Anna Zanoli (ORCID: https://orcid.org/0000-0002-9402-5617)
- Nicolas Mathevon (ORCID: https://orcid.org/0000-0003-0219-6601)
- Livio Favaro (ORCID: https://orcid.org/0000-0002-8698-472X)
- Katrin Ludynia (ORCID: https://orcid.org/0000-0002-0353-1929)
- David Reby (ORCID: https://orcid.org/0000-0001-9261-1711)
- Francesca Terranova (ORCID: https://orcid.org/0000-0003-1060-3756)
- Ilaria Morandi (ORCID: https://orcid.org/0009-0006-4298-2542)
- Melissa Cadman (ORCID: https://orcid.org/0009-0005-8558-7211)
- Chiara Tenneriello (ORCID: https://orcid.org/0009-0001-8731-9908)
Institutions
- Centre National de la Recherche Scientifique (FR)
- African Wildlife Foundation (US)
- Inserm (FR)
- École Pratique des Hautes Études (FR)
- Institut Universitaire de France (FR)
- Université Paris Sciences et Lettres (FR)
- Laboratoire Cognitions Humaine et Artificielle (FR)
- University of Turin (IT)
- University of the Western Cape (ZA)
Publication Details
- Journal
- Ibis
- Published
- 2024-09-27
- DOI
- https://doi.org/10.1111/ibi.13364
- Citations
- 1
- Primary Topic
- Animal Vocal Communication and Behavior
- Type
- article
- Field-Weighted Citation Impact
- 0.51
Funders
- PADI Foundation
- National Geographic Society
- Centre National de la Recherche Scientifique
- Institut Universitaire de France
- Centre Lyonnais d'Acoustique, Université de Lyon