In a songbird, the black redstart, parents use acoustic cues to discriminate between their different fledglings

Draganoiu, Tudor Ion; Nagle, Laurent; Musseau, Raphael; Kreutzer, Michel

doi:10.1016/j.anbehav.2005.06.022

Cited by 54 publications

(35 citation statements)

References 24 publications

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“…This mirrors previous work showing that adults discriminate in their feeding decisions based on an offspring's mass (Sasvàri 1990) or sex (Bell 2008). The ability of pups to move and associate with adults may confound the interpretation of these data, but discrimination of the young can be based on vocal cues alone (Draganoiu et al 2006). This allows us to separate the effect of pup behaviour from that of adult discrimination.…”

Section: Discussionsupporting

confidence: 57%

Do meerkat (Suricata suricatta) pups exhibit strategic begging behaviour and so exploit adults that feed at relatively high rates?

Madden

Kunc

English

et al. 2009

Behav Ecol Sociobiol

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Do meerkat (Suricata suricatta) pups exhibit strategic begging behaviour and so exploit adults that feed at relatively high rates?Madden, J R; Kunc, H J P; English, S; Manser, M B; Clutton-Brock, T H Madden, J R; Kunc, H J P; English, S; Manser, M B; Clutton-Brock, T H (2009 Do meerkat (Suricata suricatta) pups exhibit strategic begging behaviour and so exploit adults that feed at relatively high rates? Abstract Adults vary in their generosity in provisioning the young and their sensitivity to the need of the young. Do the young modulate their behaviour so as to specifically target more high-provisioning adults? This is especially likely in situations with mobile, nutritionally dependent young. We studied cooperatively breeding meerkats Suricata suricatta, in which pups beg to parents and other adults in the group. We found that the young begged differently when next to different adults and that they are consistent in how they beg when next to each adult. Pups next to adults that provision at high rates beg at higher rates and spend longer with them, and these adults are generally more sensitive to increases in begging rate. Such behaviour has adaptive benefits to offspring in terms of increased likelihood of being fed. However, offspring do not appear to be actively seeking out high-provisioning adults or increasing their begging behaviour when they encounter one. Pups did not appear to actively discriminate between adults in their association or begging behaviour. We suggest instead that the relationship between an adult's relative contribution to pup feeding and the behaviour of its accompanying pup is driven by adult behaviour, with responsive adults that feed pups at a relatively higher rate preferentially associating with fast-begging hungry pups. Abstract Adults vary in their generosity in provisioning the young and their sensitivity to the need of the young. Do the young modulate their behaviour so as to specifically target more high-provisioning adults? This is especially likely in situations with mobile, nutritionally dependent young. We studied cooperatively breeding meerkats Suricata suricatta, in which pups beg to parents and other adults in the group. We found that the young begged differently when next to different adults and that they are consistent in how they beg when next to each adult. Pups next to adults that provision at high rates beg at higher rates and spend longer with them, and these adults are generally more sensitive to increases in begging rate. Such behaviour has adaptive benefits to offspring in terms of increased likelihood of being fed. However, offspring do not appear to be actively seeking out high-provisioning adults or increasing their begging behaviour when they encounter one. Pups did not appear to actively discriminate between adults in their association or begging behaviour. We suggest instead that the relationship between an adult's relative contribution to pup feeding and the behaviour of its accompanying pup is driven by adult behaviour, with responsive adults that fe...

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Section: Discussionsupporting

confidence: 57%

Do meerkat (Suricata suricatta) pups exhibit strategic begging behaviour and so exploit adults that feed at relatively high rates?

Madden

Kunc

English

et al. 2009

Behav Ecol Sociobiol

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“…Three analysis methods commonly used for this purpose are visual comparison of the spectrograms by a trained experimenter (Janik, 1999;Bloomfield et al, 2004), spectrographic cross-correlation (Khanna et al, 1997;Janik, 1999;Cortopassi and Bradbury, 2000;Baker, 2003), and extraction of acoustic features in the signal (Nowicki and Nelson, 1990;Charrier et al, 2004;Draganoiu et al, 2006). Indeed, the human eye is a complex integrator system that can identify subtle modifications in the signal.…”

Section: A Analysis Methods Of Animal Vocalizationsmentioning

confidence: 99%

Finding good acoustic features for parrot vocalizations: The feature generation approach

Giret

Roy²,

Albert

et al. 2011

The Journal of the Acoustical Society of America

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A crucial step in the understanding of vocal behavior of birds is to be able to classify calls in the repertoire into meaningful types. Methods developed to this aim are limited either because of human subjectivity or because of methodological issues. The present study investigated whether a feature generation system could categorize vocalizations of a bird species automatically and effectively. This procedure was applied to vocalizations of African gray parrots, known for their capacity to reproduce almost any sound of their environment. Outcomes of the feature generation approach agreed well with a much more labor-intensive process of a human expert classifying based on spectrographic representation, while clearly out-performing other automated methods. The method brings significant improvements in precision over commonly used bioacoustical analyses. As such, the method enlarges the scope of automated, acoustics-based sound classification.

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“…Note that while such studies indicate variation in discrimination ability, only a few studies have actually found individual recognition of offspring by showing discrimination within groups of offspring (e.g. Rendall et al 1996;Draganoiu et al 2006;Muller & Manser 2008).…”

Section: Introductionmentioning

confidence: 99%

Experimental evidence for limited vocal recognition in a wild primate: implications for the social complexity hypothesis

Bergman

2010

Proc. R. Soc. B.

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Although monitoring social information is a key aspect of the social complexity hypothesis, surprisingly little work has compared social knowledge across different species of wild animals. In the present study, I use playback experiments to test for individual recognition in wild male geladas (Theropithecus gelada) to compare with published accounts of social knowledge in chacma baboons (Papio ursinus). Geladas and baboons are closely related primates living in socially complex groups that differ dramatically in group size-geladas routinely associate with more than 10 times the number of conspecifics than do baboons. Using grunts from non-rival males to simulate approaches, I examined the strength of a subject male's response when the 'approach' was from the direction of (i) non-rival males (control), or (ii) rival males (a more salient stimulus if playback grunts are not recognized by the subject). I compared responses separately based on the degree of social overlap between the caller and the subject. Responses indicate that male geladas, unlike baboons, do not use vocalizations to recognize all of the individuals they regularly encounter. This represents, to my knowledge, the first documented evidence of 'missing' social knowledge in a natural primate population. The sharp distinction between baboons and geladas suggests that geladas are either unable or unmotivated to keep track of the individual identity of other males in their multi-level society-even males with whom they have a large degree of social overlap. Thus, these results are consistent with the central assumption of the social complexity hypothesis that social cognition is costly.

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In a songbird, the black redstart, parents use acoustic cues to discriminate between their different fledglings

Cited by 54 publications

References 24 publications

Do meerkat (Suricata suricatta) pups exhibit strategic begging behaviour and so exploit adults that feed at relatively high rates?

Do meerkat (Suricata suricatta) pups exhibit strategic begging behaviour and so exploit adults that feed at relatively high rates?

Finding good acoustic features for parrot vocalizations: The feature generation approach

Experimental evidence for limited vocal recognition in a wild primate: implications for the social complexity hypothesis

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