Assessment of auditory distance in a territorial songbird: accurate feat or rule of thumb?

Naguib, Marc; Klump, Georg M.; Hillmann, Edna; Grießmann, Benjamin; Teige, Tobias

doi:10.1006/anbe.1999.1354

Cited by 52 publications

(31 citation statements)

References 28 publications

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“…A male will approach the sound source in an attempt to localize its presumed rival, and the distance covered and its direction indicate the bird's ranging ability (Nelson and Stoddard, 1998;Naguib et al, 2000;Holland et al, 2001;Morton et al, 2006). In addition, laboratory experiments allow quantification of which of the different physical signal cues are behaviourally relevant for a bird, and which can be used at all.…”

Section: Echoes Indicate Transmission Distancementioning

confidence: 99%

“…So far, only a few studies have tested the behavioural response of territorial birds for more than two different degrees of degradation (Nelson and Stoddard, 1998;Naguib et al, 2000). Chaffinches, for example (Naguib et al, 2000), showed a categorical response to playback of degraded songs corresponding to transmission distances of between 0 and 120 m, indicating that the birds distinguished 'short' (0, 20 and 40 m) from 'long' distances (80 and 120 m).…”

Section: Echoes Indicate Transmission Distancementioning

confidence: 99%

“…Chaffinches, for example (Naguib et al, 2000), showed a categorical response to playback of degraded songs corresponding to transmission distances of between 0 and 120 m, indicating that the birds distinguished 'short' (0, 20 and 40 m) from 'long' distances (80 and 120 m). In the context of territorial defence it might indeed be adaptive to initially differentiate between only two categories, thus localizing potential threats either being 'inside' or 'outside' the territory.…”

Section: Echoes Indicate Transmission Distancementioning

confidence: 99%

“…by frequency-dependent attenuation; Marten and Marler, 1977). All of these cues have been shown to be useful to birds, although to a different extent, and for the evaluation of some of these cues prior knowledge of the signal has been suggested to play a role (Naguib et al, 2000;Holland et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

“…These 'echo patterns' were entirely computer generated, and were not obtained by simple re-recordings from songs broadcast in the field (which commonly creates unwanted acoustic byproducts). The method of signal generation we used in the present study has been successfully applied in a field study (Naguib et al, 2000) in which the approach behaviour of territorial chaffinches (Fringilla coelebs L.) was related to the degree of degradation of the playback signals, demonstrating that the birds perceived differences in degradation as differences in distance of a sound source.…”

Section: Introductionmentioning

confidence: 99%

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Effects of signal features and background noise on distance cue discrimination by a songbird

Pohl

Klump

Langemann

2015

Journal of Experimental Biology

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During the transmission of acoustic signals, the spectral and temporal properties of the original signal are degraded, and with increasing distance more and more echo patterns are imposed. It is well known that these physical alterations provide useful cues to assess the distance of a sound source. Previous studies in birds have shown that birds employ the degree of degradation of a signal to estimate the distance of another singing male (referred to as ranging). Little is known about how acoustic masking by background noise interferes with ranging, and if the number of song elements and stimulus familiarity affect the ability to discriminate between degraded and undegraded signals. In this study we trained great tits (Parus major L.) to discriminate between signal variants in two background types, a silent condition and a condition consisting of a natural dawn chorus. We manipulated great tit song types to simulate patterns of reverberation and degradation equivalent to transmission distances of between 5 and 160 m. The birds' responses were significantly affected by the differences between the signal variants and by background type. In contrast, stimulus familiarity or their element number had no significant effect on signal discrimination. Although background type was a significant main effect with respect to the response latencies, the great tits' overall performance in the noisy dawn chorus was similar to the performance in silence.

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Section: Echoes Indicate Transmission Distancementioning

confidence: 99%

Section: Echoes Indicate Transmission Distancementioning

confidence: 99%

Section: Echoes Indicate Transmission Distancementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effects of signal features and background noise on distance cue discrimination by a songbird

Pohl

Klump

Langemann

2015

Journal of Experimental Biology

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A novel relay nucleus between the inferior colliculus and the optic tectum in the chicken (Gallus gallus)

Niederleitner

Gutiérrez-Ibáñez

Krabichler

et al. 2016

J of Comparative Neurology

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Processing multimodal sensory information is vital for behaving animals in many contexts. The barn owl, an auditory specialist, is a classic model for studying multisensory integration. In the barn owl, spatial auditory information is conveyed to the optic tectum (TeO) by a direct projection from the external nucleus of the inferior colliculus (ICX). In contrast, evidence of an integration of visual and auditory information in auditory generalist avian species is completely lacking. In particular, it is not known whether in auditory generalist species the ICX projects to the TeO at all. Here we use various retrograde and anterograde tracing techniques both in vivo and in vitro, intracellular fillings of neurons in vitro, and whole-cell patch recordings to characterize the connectivity between ICX and TeO in the chicken. We found that there is a direct projection from ICX to the TeO in the chicken, although this is small and only to the deeper layers (layers 13-15) of the TeO. However, we found a relay area interposed among the IC, the TeO, and the isthmic complex that receives strong synaptic input from the ICX and projects broadly upon the intermediate and deep layers of the TeO. This area is an external portion of the formatio reticularis lateralis (FRLx). In addition to the projection to the TeO, cells in FRLx send, via collaterals, descending projections through tectopontine-tectoreticular pathways. This newly described connection from the inferior colliculus to the TeO provides a solid basis for visual-auditory integration in an auditory generalist bird. J. Comp. Neurol. 525:513-534, 2017. © 2016 Wiley Periodicals, Inc.

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Estimating the distance to a source of sound: mechanisms and adaptations for long-range communication

2001

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Assessment of auditory distance in a territorial songbird: accurate feat or rule of thumb?

Cited by 52 publications

References 28 publications

Effects of signal features and background noise on distance cue discrimination by a songbird

Effects of signal features and background noise on distance cue discrimination by a songbird

A novel relay nucleus between the inferior colliculus and the optic tectum in the chicken (Gallus gallus)

Estimating the distance to a source of sound: mechanisms and adaptations for long-range communication

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