The Caatinga Orchestra: Acoustic indices track temporal changes in a seasonally dry tropical forest

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorAvenida Senador Salgado Filho-
Autor(es): dc.contributorQueensland University of Technology-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorOliveira, Eliziane Garcia-
Autor(es): dc.creatorRibeiro, Milton Cezar-
Autor(es): dc.creatorRoe, Paul-
Autor(es): dc.creatorSousa-Lima, Renata S.-
Data de aceite: dc.date.accessioned2025-08-21T21:09:37Z-
Data de disponibilização: dc.date.available2025-08-21T21:09:37Z-
Data de envio: dc.date.issued2022-05-01-
Data de envio: dc.date.issued2022-05-01-
Data de envio: dc.date.issued2021-10-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.ecolind.2021.107897-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/233162-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/233162-
Descrição: dc.descriptionAdvances in technologies for data acquisition, storage and analysis have boosted Acoustic Ecology studies, but protocols are still lacking. There is a need of more research to understand which methodologies can be applied to answer ecological questions in different environments with varying temporal and spatial dynamics. Tropical forests are generally more complex than temperate ones, both in terms of use of acoustic space and species diversity. The seasonally dry tropical forest (SDTF) in Brazil, known as Caatinga, is a threatened biome, with two marked seasons that shape vegetation and animal activity patterns. In this study, we investigate the applicability of passive acoustics in monitoring SDTF, describing the soundscape and tracking diel patterns and seasonal changes. Combining multiple indices, visualization through false colour spectrograms and clustering, we describe the acoustic activity of the main faunal groups that compose the biophonic orchestra in a SDTF area in the Northeast of Brazil. Distinct patterns were found between day – when birds and wind were the main sound sources – and night – with Orthopterans occupying a large frequency band. Other sound sources in the SDTF soundscape included cicada, rain, and anthropogenic influence such as domestic animals, cars and gunshots. Clustering of eleven acoustic indices was useful to distinguish sound patterns from several sources, especially in the dry season. Further investigation within each cluster showed specific relationships among selected indices and different sound sources. Birds were associated with Entropy of the Spectral Peaks (EPS) and Orthopterans also had a relationship with EPS, as well as with Entropy of Average Spectrum (EAS) and High Frequency Cover (HFC). Variation in diel values of these selected indices, as well as the number of samples included in each cluster category, were successfully used to describe the acoustic activity of Birds and Orthopterans and to track changes between rainy and dry seasons. A better understanding of the soundscape dynamics in a highly seasonal tropical environment was achieved by applying cheap and reliable novel methodologies to study biodiversity in geopolitical regions where funding for conservation initiatives is limited.-
Descrição: dc.descriptionLaboratório de Bioacústica (LaB) Departamento de Fisiologia e Comportamento Biosciences Center Universidade Federal do Rio Grande do Norte Avenida Senador Salgado Filho, 3000, Bairro Lagoa Nova-
Descrição: dc.descriptionScience and Engineering Faculty Queensland University of Technology, 2 George St-
Descrição: dc.descriptionSpatial Ecology and Conservation Lab (LEEC) Department of Biodiversity State University of Sao Paulo (UNESP), Av. 24 A, 1515-
Descrição: dc.descriptionGraduate Program in Ecology Biosciences Center Universidade Federal do Rio Grande do Norte Avenida Senador Salgado Filho, 3000, Bairro Lagoa Nova-
Descrição: dc.descriptionSpatial Ecology and Conservation Lab (LEEC) Department of Biodiversity State University of Sao Paulo (UNESP), Av. 24 A, 1515-
Idioma: dc.languageen-
Relação: dc.relationEcological Indicators-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAcoustic indices-
Palavras-chave: dc.subjectBioacoustics-
Palavras-chave: dc.subjectEcoacoustics-
Palavras-chave: dc.subjectSeasonally dry tropical forest-
Palavras-chave: dc.subjectSoundscape-
Título: dc.titleThe Caatinga Orchestra: Acoustic indices track temporal changes in a seasonally dry tropical forest-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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