Medindia

X

African Penguins Have Four Different Vocalizations

by Bidita Debnath on  July 31, 2014 at 11:41 PM Research News   - G J E 4
African adult penguins communicate using four different vocalizations and juveniles and chicks use two begging calls to request food.
 African Penguins Have Four Different Vocalizations
African Penguins Have Four Different Vocalizations
Advertisement

This is according to a study published July 30, 2014 in the open-access journal PLOS ONE by Livio Favaro and colleagues from University of Turin, Italy.

Advertisement
African penguins vocalize to communicate with their parents, mates, and colony members; however, only basic descriptions of their calls currently exist. To further observe their vocal behavior, the authors of this study collected, categorized, and acoustically analyzed hundreds of audio and video vocal recordings from a large captive colony of penguins in Italy. In addition, they identified the behavioral contexts in which calls were made.

Results show that four basic vocalizations can be found in the auditory repertoire of the adult African penguin: a contact call emitted by isolated birds, an agonistic call used in aggressive interactions, an ecstatic display song uttered by single birds during the breeding season, and a mutual display song vocalized by pairs at their nests. The authors also identified two distinct vocalizations interpreted as begging calls by nesting chicks (begging peep) and unweaned juveniles (begging moan). Since the colony is captive, the authors can't be sure they've identified all possible vocalizations, but they suggest this analysis helps to standardize known vocalizations that can be used in further study of these endangered seabirds.

Source: Eurekalert
Advertisement

Post your Comments

Comments should be on the topic and should not be abusive. The editorial team reserves the right to review and moderate the comments posted on the site.
User Avatar
* Your comment can be maximum of 2500 characters
Notify me when reply is posted I agree to the terms and conditions

You May Also Like

Advertisement
View All