@article {58000, title = {Preliminary Acoustic Analysis of Farm Management Noise and Its Impact on Broiler Welfare}, journal = {Proceedings of the Royal Society B: Biological Sciences}, volume = {6}, year = {2019}, abstract = {

Farm management practices done by machinery generate a high acoustical impact on animals. The acoustic variations in terms of equivalent level (Leq) and the different types of noise can affect the well-being of broilers by means of reducing the food and water ingest. In this work, we create a dataset in which we conduct a preliminary analysis of the acoustical impact generated by the farm management in a intensive broiler poultry farm of 25,000 birds. The project collects acoustic data during the first two weeks of the birds life, focusing the study on the first week. To create the dataset we randomly select some files from each day of the study and they are analysed and labelled manually using an audio analysis software. The acoustical events defined in collaboration with the farmer and vet are fan, food and water supply, based on duration, impact and Signal to Noise Ratio (SNR). The analysis concludes that the main acoustical source in a broilers\’ farm is fan, and that it has an non negligible acoustical impact. Nevertheless, the most frequent acoustical noise source active is food supply, but with less Leq impact.

}, keywords = {acoustic impact, broiler well-fare, farm management noise, Leq, poultry farm}, author = {Oliinychenko, DmytroGerardo Jos{\'e} Ginovart-Panisello and Rosa Ma Alsina-Pag{\`e}s} } @article {53360, title = {Frogs adapt to physiologically costly anthropogenic noise}, journal = {Proceedings of the Royal Society B: Biological Sciences}, volume = {285}, year = {2018}, month = {Sep-15-20182197}, pages = {20182194}, abstract = {

Human activities impose novel pressures on amphibians, which are experiencing unprecedented global declines, yet population-level responses are poorly understood. A growing body of literature has revealed that noise is an anthropogenic stressor that impacts ecological processes spanning sub-cellular to ecosystem levels. These consequences can impose novel selective pressures on populations, yet whether populations can adapt to noise is unknown. We tested for adaptation to traffic noise, a widespread sensory \“pollutant\”. We collected eggs of wood frogs (Rana sylvatica) from populations from different traffic noise regimes, reared hatchlings under the same conditions, and tested frogs for differences in sublethal fitness-relevant effects of noise. We show that prolonged noise impaired production of antimicrobial peptides associated with defence against disease. Additionally, noise and origin site interacted to impact immune and stress responses. Noise exposure altered leukocyte production and increased baseline levels of the stress-relevant glucocorticoid, corticosterone, in frogs from quiet sites, but noise-legacy populations were unaffected. These results suggest noise-legacy populations have adapted to avoid fitness-relevant physiological costs of traffic noise. These findings advance our understanding of the consequences of novel soundscapes, and reveal a pathway by which anthropogenic disturbance can enable adaptation to novel environments.

}, issn = {0962-8452}, doi = {10.1098/rspb.2018.2194}, url = {http://rspb.royalsocietypublishing.org/lookup/doi/10.1098/rspb.2018.2194https://syndication.highwire.org/content/doi/10.1098/rspb.2018.2194}, author = {Tennessen, Jennifer B. and Parks, Susan E. and Swierk, Lindsey and Reinert, Laura K. and Holden, Whitney M. and Rollins-Smith, Louise A. and Walsh, Koranda A. and Langkilde, Tracy} } @article {16466, title = {Acoustic preference functions and song variability in the Hawaiian cricket Laupala cerasina}, journal = {Proceedings of the Royal Society B: Biological Sciences}, volume = {267}, year = {2000}, month = {Oct-03-2001}, pages = {577 - 584}, abstract = {

Female preference functions for di\¡erent sexual traits can di\¡er signi\¢cantly, from {\textquoteleft}unimodal\’ to {\textquoteleft}open ended\’. Through the study of acoustic communication in anurans, several studies have reported an association between static (stereotyped) traits versus dynamic (variable) traits and preference function shape (unimodal versus open ended, respectively). Observing a similar pattern in a phylogenetically independent group would suggest that deterministic forces have caused a relationship between signal variability and preference function shape in acoustic signalling systems. We examined this phenomenon in crickets, another animal characterized by intersexual acoustic communication. We measured the within- male variability for three acoustic features of the male calling song in Laupala cerasina and the corresponding shape of the female preference function for each of these features. We o\¡er support for the generalization that open-ended preference functions correspond to relatively dynamic courtship traits and unimodal preference functions correspond to relatively static courtship traits. We discuss the evolutionary signi\¢cance of these \¢ndings in the context of the natural history of the Laupala species radiation.

}, keywords = {acoustic communication, crickets, mate recognition, preference, sexual selection, song}, issn = {0962-8452}, doi = {10.1098/rspb.2000.1040}, url = {http://rspb.royalsocietypublishing.org/cgi/doi/10.1098/rspb.2000.1040}, author = {Shaw, K. L. and Herlihy, D. P.} }