Long distance calls: Negligible information loss of little auk social vocalisations due to high frequency propagation losses.

ABSTRACT: How well does the information contained in vocal signals travel through the environment? To assess the efficiency of information transfer in little auk (Alle alle, an Arctic seabird) calls over distance, we selected two of the social call types with the highest potential for individuality coding. Using available recordings of known individuals, we calculated the apparent source levels, with apparent maximum peak sound pressure level (ASPL) of 63 dB re 20 μPa at 1 m for both call types. Further, we created a sound attenuation model using meteorological data collected in the vicinity of the little auk colony in Hornsund, Spitsbergen. Using this model, we modelled the calls to reflect higher frequency filtering and sound level loss occurring during spherical spreading in perfect local conditi

SUBMITTER: Osiecka AN 

PROVIDER: S-EPMC11981542 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature