Relación entre índices acústicos, duración de las grabaciones y tiempo de procesamiento:Una prueba metodológica

Cifuentes, Edgar, Gómez, Juliana Vélez and Butler, Simon J. (2021) Relación entre índices acústicos, duración de las grabaciones y tiempo de procesamiento:Una prueba metodológica. Biota Colombiana, 22 (1). pp. 26-35. ISSN 2539-200X

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Abstract

Ecoacoustic approaches have the potential to provide rapid biodiversity assessments and avoid costly fieldwork. Their use in biodiversity studies for improving management and conservation of natural landscapes has grown considerably in recent years. Standardised methods for sampling acoustic information that deliver reliable and consistent results within and between ecosystems are still lacking. Sampling frequency and duration are particularly important considerations because shorter, intermittent recordings mean recorder batteries last longer and data processing is less computationally intensive, but a smaller proportion of the available soundscape is sampled. Here, we compare acoustic indices and processing time for subsamples of increasing duration clipped from 94 one-hour recordings, to test how different acoustic indices behave, in order to identify the minimum sample length required. Our results suggest that short recordings distributed across the survey period accurately represent acoustic patterns, while optimizing data collection and processing. ACI and H are the most stable indices, showing an ideal sampling schedule of ten 1-minute samples in an hour. Although ADI, AEI and NDSI well represent acoustic patterns under the same sampling schedule, these are more robust under continuous recording formats. Such targeted subsampling could greatly reduce data storage and computational power requirements in large-scale and long-term projects.

Item Type: Article
Uncontrolled Keywords: ecoacoustics,frequency of samples,processing time,soundscape ecology,animal science and zoology,plant science,ecology, evolution, behavior and systematics,ecology,nature and landscape conservation ,/dk/atira/pure/subjectarea/asjc/1100/1103
Faculty \ School: Faculty of Science > School of Environmental Sciences
Faculty of Science > School of Biological Sciences
Related URLs:
Depositing User: LivePure Connector
Date Deposited: 06 Feb 2021 00:59
Last Modified: 07 Apr 2021 01:39
URI: https://ueaeprints.uea.ac.uk/id/eprint/79178
DOI: 10.21068/C2021.V22N01A02

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