Acoustic activity of birds across adjacent habitats in a sub-antartic forest: an exploratory ecoacoustic study in omora park

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dc.catalogadordfo
dc.contributor.authorPorflitt Becerra, Felipe Ignacio
dc.contributor.authorRozzi, Ricardo
dc.date.accessioned2026-01-21T15:00:11Z
dc.date.available2026-01-21T15:00:11Z
dc.date.issued2025
dc.description.abstractUnderstanding how acoustic environments vary across habitats is essential for interpreting avian communication in rapidly changing landscapes. In this exploratory ecoacoustic study, we examined short-term patterns of bird acoustic activity and background sound levels in three adjacent habitats of Omora Park, southern Chile: old-growth forest, riparian forest, and the entrance of a recreational trail. Using 67 one-minute recordings collected across a single sampling day, we quantified the number of avian vocalizations, non-avian sounds, and basic acoustic indices (maximum amplitude, RMS, and percent silence). Old-growth forest exhibited the highest acoustic activity, with approximately twice as many vocalizations per minute as the riparian site and the trail entrance. Non-avian noise levels were similar across habitats, although the trail entrance showed occasional high-amplitude peaks and the riparian site displayed continuous geophonic noise from the river. A negative correlation between non-avian sounds and avian vocalizations suggests potential masking processes, although the limited temporal scope of the study prevents causal inference. Our findings highlight fine-scale habitat differences that shape the sub-Antarctic soundscape and underscore the potential of ecoacoustic monitoring for informing conservation in remote areas. We discuss methodological constraints—short sampling duration, lack of calibrated sound pressure measurements—and propose research directions to strengthen future assessments of anthropogenic and environmental noise in high-latitude ecosystems.
dc.fechaingreso.objetodigital2026-01-21
dc.format.extent15 páginas
dc.fuente.origenSIPA
dc.identifier.doi10.22352/AIP202553008
dc.identifier.issn0718-686X
dc.identifier.urihttps://doi.org/10.22352/AIP202553008
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/107806
dc.information.autorucFacultad de Educación; Porflitt Becerra Felipe Ignacio; 0000-0001-9789-9080; 218076
dc.language.isoen
dc.nota.accesoContenido completo
dc.revistaAnales del instituto de la patagonia
dc.rightsAcceso abierto
dc.rights.licenseAtribución/Reconocimiento 4.0 Internacional
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/deed.es
dc.subject.ddc570
dc.subject.ods15 Life on land
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.titleAcoustic activity of birds across adjacent habitats in a sub-antartic forest: an exploratory ecoacoustic study in omora park
dc.typeartículo
dc.volumen53
sipa.codpersvinculados218076
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