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  • Title: Local sonic activity reveals potential partitioning in a coral reef fish community.
    Author: Bertucci F, Maratrat K, Berthe C, Besson M, Guerra AS, Raick X, Lerouvreur F, Lecchini D, Parmentier E.
    Journal: Oecologia; 2020 May; 193(1):125-134. PubMed ID: 32285197.
    Abstract:
    How vocal organisms share acoustic space has primarily received attention in terrestrial environments. Comparable studies in marine environments, however, remain rare. By recording sounds on a coral reef in French Polynesia for 48 h and 24 h, this study provides first insights on how different sound types are distributed within the acoustic space and may create acoustic niches optimizing acoustic communication within a highly diverse community containing numerous soniferous fish species. Day-time was dominated by two to six sound types, while recordings performed at night revealed a more diverse vocal community made of up to nineteen sound types. Calling activity was distributed over time allowing each sound type to dominate the soundscape sequentially. Additionally, differences in the acoustic features of sounds occurring during the same period were observed. Such partitioning in time and acoustic spaces would reduce potential overlaps of sounds produced by vocal species living in sympatry in coral reefs.
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