Quantitative study of vocalization and soundscape ecology

Started in october 2024

Funding: École pratique des hautes études

Supervisor: Sébastien Couette

Abstract

The acoustic characteristics of vocalizations are closely linked to physical attributes, suggesting that certain crucial features of sound production may be constrained by morphology (Charlton and Reby, 2016; Garcia et al., 2017). Indeed, certain characteristics related to these structures (such as the dimensions of the larynx, the shape of different structures in the ear, and the size of the caller) can be directly linked to certain variables describing individuals’ auditory abilities and their capacity to emit and propagate vocalizations (Ramsier, 2012, Ramsier and Rauschecker, 2017, Bernardi et al., 2019). Therefore, the analysis of these morphological features is of particular interest in the context of primate communication. Furthermore, analyzing the environment in which these sound productions occur also allows for hypotheses to be made regarding the dissemination of these sounds (Pijanowski et al., 2011). The acoustic characteristics of vocalizations have been studied in the literature, particularly in Galagidae (Masters, 1991), but this model need to be completed by strengthening its connection with habitat structure and how it constrains the emission and reception of signals. According to Zimmermann (2017), the use of vocalizations in nocturnal monkeys might be more advantageous in promoting social cohesion. These vocalizations often indicate social status, sex, dominance, and territoriality, although there is less data available in the literature, particularly for primates. It is therefore difficult to establish a link between the differentiation of sounds according to individual morphological variations and their impact on social structure in a context of environmental variation. The objective of this thesis is to highlight the impact of levels of variation, from individual to ecosystemic, on bioacoustic for the study of animals.

Keywords

Bioacoustic – Animal communication – Strepsirrhini primate

Thesis advisory panel

Claire Dufour
Cédric Girard-Buttoz
Jérôme Sueur

extrait:

lien_externe:

titre:

Étude quantitative des communications vocales et de l’acoustique de l’habitat

date_de_debut_these:

octobre 2024

nom:

COnfuron

date_de_debut_these_numerique:

202410

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kc_raw_content:

Quantitative study of vocalization and soundscape ecology

Started in october 2024

Funding: École pratique des hautes études

Supervisor: Sébastien Couette

 

Abstract

The acoustic characteristics of vocalizations are closely linked to physical attributes, suggesting that certain crucial features of sound production may be constrained by morphology (Charlton and Reby, 2016; Garcia et al., 2017). Indeed, certain characteristics related to these structures (such as the dimensions of the larynx, the shape of different structures in the ear, and the size of the caller) can be directly linked to certain variables describing individuals' auditory abilities and their capacity to emit and propagate vocalizations (Ramsier, 2012, Ramsier and Rauschecker, 2017, Bernardi et al., 2019). Therefore, the analysis of these morphological features is of particular interest in the context of primate communication. Furthermore, analyzing the environment in which these sound productions occur also allows for hypotheses to be made regarding the dissemination of these sounds (Pijanowski et al., 2011). The acoustic characteristics of vocalizations have been studied in the literature, particularly in Galagidae (Masters, 1991), but this model need to be completed by strengthening its connection with habitat structure and how it constrains the emission and reception of signals. According to Zimmermann (2017), the use of vocalizations in nocturnal monkeys might be more advantageous in promoting social cohesion. These vocalizations often indicate social status, sex, dominance, and territoriality, although there is less data available in the literature, particularly for primates. It is therefore difficult to establish a link between the differentiation of sounds according to individual morphological variations and their impact on social structure in a context of environmental variation. The objective of this thesis is to highlight the impact of levels of variation, from individual to ecosystemic, on bioacoustic for the study of animals.

 

Keywords

Bioacoustic – Animal communication – Strepsirrhini primate

 

Thesis advisory panel

Claire Dufour
Cédric Girard-Buttoz
Jérôme Sueur