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Bioacoustic articles: Behaviour 141 (3)

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Subject: Bioacoustic articles: Behaviour 141 (3)
From: Dolphinlab <>
Date: Mon, 19 Apr 2004 08:32:32 -0700
<a  
href="http://dandini.ingentaselect.com/vl=751105/cl=30/nw=1/rpsv/cw/brill/00057959/v141n3/contp1-1.htm";
 
rel="nofollow">http://dandini.ingentaselect.com/vl=751105/cl=30/nw=1/rpsv/cw/brill/00057959/v141n3/contp1-1.htm</a>
 
 (Abstracts below)
 
 Ligout; S, F Sebe & RH Porter (2004) Vocal discrimination of kin and non-kin
 agemates among lambs. Behaviour 141: 355-369.
 
 Kipper, S, R Mundry, H Hultsch & D Todt  (2004) Long-term persistence of
 song performance rules in nightingales (Luscinia megarhynchos): a
 longitudinal field study on repertoire size and composition. Behaviour 141:
 371-390.
 ----------------------
 Abstracts
 
 Ligout; S, F Sebe & RH Porter (2004) Vocal discrimination of kin and non-kin
 agemates among lambs. Behaviour 141: 355-369.
 Abstract: Playback experiments were conducted with 4 week old Ile-de-France
 lambs (Ovis aries) to assess the role of auditory cues in social
 discrimination. After being habituated to the test enclosure, lambs were
 individually exposed to bleats from two stimulus individuals. Twin lambs
 were tested with recorded bleats of their sibling versus an unfamiliar
 agemate and single lambs with bleats of a familiar agemate versus an
 unfamiliar lamb. Lambs responded more frequently to the bleats of their
 sibling (for twin lambs) or of a familiar agemate (for single lambs) than to
 those of an unfamiliar lamb. Such discriminative responses to the bleats of
 familiar twins and non-kin lambs suggest that vocalizations may be a
 sufficient basis for social recognition. Acoustic analyses of the playback
 bleats revealed significant differences between the signals from the
 different stimulus lambs and suggest that fundamental frequency may be an
 important parameter of lambs' individual vocal signatures.
 
 Kipper, S, R Mundry, H Hultsch & D Todt  (2004) Long-term persistence of
 song performance rules in nightingales (Luscinia megarhynchos): a
 longitudinal field study on repertoire size and composition. Behaviour 141:
 371-390.
 Abstract: Common nightingales (Luscinia megarhynchos) are among those bird
 species that possess an extremely large repertoire and perform it in a
 versatile singing style. Thereby, repertoire size, composition, and
 performance differs considerably among individuals. In this longitudinal
 field study, we investigated the long-term stability of these differences in
 the song characteristics of free-ranging nightingales. We determined the
 repertoire characteristics for nine adult male individuals in two successive
 years (three of these individuals were investigated over the course of three
 years) and compared these to similar measurements obtained from comparisons
 of song samples of different birds. Comparisons revealed remarkable
 differences among males, but we did not find systematic differences in the
 song performance of birds in successive years. Instead, song characteristics
 were remarkably stable within successive years. The long-term persistence of
 individual song characteristics suggests that they are not related to
 dynamically changing individual attributes, but may reflect long-term
 storage of information during song acquisition as juveniles. In addition, we
 found that the repertoire performance of adult nightingales allows
 fine-tuned vocal interactions among several neighbouring males.
 

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