[Top] [All Lists]

new bioacoustic article in acta ethologica

Subject: new bioacoustic article in acta ethologica
From: Sonja Amoser <>
Date: Sun, 20 Mar 2011 21:30:21 +0100
Gabriel Francescoli (2011): Tuco-tucos? vocalization output varies
seasonally (Ctenomys pearsoni; Rodentia, Ctenomyidae): implications for
reproductive signaling. Acta Ethologica, 14(1), 1-6.

Abstract: Tuco-tucos are subterranean rodents endemic of South America.
Ctenomys pearsoni is a solitary species from southwestern Uruguay. Each
individual occupies its own burrow and aggressively defends it, except for
juveniles before dispersing and couples during reproduction. We tried to
understand how these animals find a partner and how they know their
reproductive state, avoiding to spend excess energy burrowing to locate
those partners for reproduction and avoiding above-ground predation. We
studied a C. pearsoni population in the field from June 2005 until March
2007, using individually identified animals, some fitted with radio-tracking
collars. For their long-range vocalizations, we recorded the number of
vocalizations, number of series (groups of notes composing the vocalization)
emitted, time of day of the emission, and emitter identity. Samples were
taken by listening to the emissions. Results show that the number of
emissions changes along the year, being higher during the reproductive
season. Males emit more frequently than females and do it throughout the
year. Female vocalizations rise in number when reproduction starts and then
decline in number through pregnancy and/or until juveniles disperse and also
vary in length being longer during the beginning of the breeding period.
These results suggest that female vocalization (i.e., repetition and
duration) would inform about emitter?s location, sex, and reproductive

For reprints please contact Gabriel Francescoli (email: 

Kind regards


Dr. Sonja Amoser
Steinrieglstraße 286
3400 Weidlingbach

<Prev in Thread] Current Thread [Next in Thread>
  • new bioacoustic article in acta ethologica, Sonja Amoser <=

The University of NSW School of Computer and Engineering takes no responsibility for the contents of this archive. It is purely a compilation of material sent by many people to the Bioacoustics-L mailing list. It has not been checked for accuracy nor its content verified in any way. If you wish to get material removed from the archive or have other queries about the archive e-mail Andrew Taylor at this address: andrewt@cse.unsw.EDU.AU