Results 61 to 70 of about 1,392 (228)

Impacts of a large hydroelectric dam on the Madeira River (Brazil) on floodplain avifauna

Acta Amazonica, 2021
Hydroelectric dams represent an important threat to seasonally flooded environments in the Amazon basin. We aimed to evaluate how a dam in the Madeira River, one of the largest tributaries of the Amazonas River, affected floodplain avifauna.
Tomaz Nascimendo de MELO, Marconi Campos CERQUEIRA, Fernando Mendonça D’HORTA, Hanna TUOMISTO, Jasper Van DONINCK, Camila Cherem RIBAS   +5 more
doaj   +1 more source

Detecting and reducing heterogeneity of error in acoustic classification

Methods in Ecology and Evolution, 2022
Passive acoustic monitoring can be an effective method for monitoring species, allowing the assembly of large audio datasets, removing logistical constraints in data collection and reducing anthropogenic monitoring disturbances.
Oliver C. Metcalf, Jos Barlow, Yves Bas, Erika Berenguer, Christian Devenish, Filipe França, Stuart Marsden, Charlotte Smith, Alexander C. Lees   +8 more
doaj   +1 more source

Soundscape components inform acoustic index patterns and refine estimates of bird species richness

Frontiers in Remote Sensing, 2023
Ecoacoustic monitoring has proliferated as autonomous recording units (ARU) have become more accessible. ARUs provide a non-invasive, passive method to assess ecosystem dynamics related to vocalizing animal behavior and human activity.
Colin A. Quinn, Patrick Burns, Christopher R. Hakkenberg, Leonardo Salas, Bret Pasch, Scott J. Goetz, Matthew L. Clark   +6 more
doaj   +1 more source

Ecoacoustic bank: A software for ecoacoustics data management

SoftwareX
This paper describes Ecoacoustic bank, a software for managing and storing passive acoustic monitoring (PAM) data. The software allows integrating audio with other commonly collected data types, such as information on acquisition systems used and spatial–temporal conditions, to encourage research in biodiversity and environmental monitoring. As part of
Andrés Felipe Giraldo-Forero, Paula Andrea Rodríguez-Marín, Claudia Isaza-Narváez, Juan Manuel Daza-Rojas   +3 more
openaire   +2 more sources

Analysing Interlinked Frequency Dynamics of the Urban Acoustic Environment [PDF]

, 2022
As sustainable metropolitan regions require more densely built-up areas, a comprehensive understanding of the urban acoustic environment (AE) is needed. However, comprehensive datasets of the urban AE and well-established research methods for the AE are ...
Ahmed, Salman, Braun, Tobias, Gruehn, Dietwald, Haselhoff, Timo, Hornberg, Jonas, Lawrence, Bryce T., Moebus, Susanne   +6 more
core   +2 more sources

Passive Acoustic Monitoring as a Tool to Investigate the Spatial Distribution of Invasive Alien Species

Remote Sensing, 2022
Invasive alien species (IAS) are a threat to biodiversity and ecosystem function worldwide. Unfortunately, researchers, agencies, and other management groups face the unresolved challenge of effectively detecting and monitoring IAS at large spatial and ...
José W. Ribeiro, Kristopher Harmon, Gabriel Augusto Leite, Tomaz Nascimento de Melo, Jack LeBien, Marconi Campos-Cerqueira   +5 more
doaj   +1 more source

Multidimensional terrestrial ecoacoustics assessment

, 2023
Ecologists faces challenges when analysing environmental acoustic data, such as handling big data, summarising and comparing long-duration recordings across regions and timescales. This thesis provide an innovative framework that combines time-series motif discovery and machine learning for analysing environmental sounds.
openaire   +2 more sources

The Sound of Drystones: A Novel Hot-Spot of Ecoacoustics Research

Earth, 2022
Drystone terraces offer a series of ecosystem services including both biological and cultural benefits. The aesthetic contribution towards the landscape and the increase in biodiversity levels, constitute drystone terraces and other similar constructions,
Maria Minioti, Aggelos Tsaligopoulos, Yiannis G. Matsinos, Gerasimos Pavlogeorgatos   +3 more
doaj   +1 more source

Impact of parameterization in multiple acoustic index comparisons: practical cases in terrestrial and underwater soundscapes

Remote Sensing in Ecology and Conservation, EarlyView.
Parameter choices in acoustic analyses (sampling frequency, FFT size and window overlap) strongly influence multivariate soundscape separation. Using terrestrial and coral reef recordings, we show that these settings can exaggerate or mask ecological differences, emphasizing the need for parameter sensitivity testing and transparent reporting in ...
Juan C. Azofeifa‐Solano, Miles J. G. Parsons, James Kemp, Rohan M. Brooker, Robert D. McCauley, Shyam Madhusudhana, Mathew Wyatt, Stephen D. Simpson, Christine Erbe   +8 more
wiley   +1 more source

Monitoring feral pigs (Sus scrofa): Complementarity between autonomous sensing methods increases detection probability

Remote Sensing in Ecology and Conservation, EarlyView.
Invasive alien species are a major threat for biodiversity worldwide and effective monitoring is paramount to inform management. In this study we used a multi‐season occupancy model to assess probability of detection between camera traps and passive acoustic recorders for feral pigs (Sus scrofa) during 1 year of data collection.
Marina D. A. Scarpelli, Stewart Macdonald, Maryam Golchin, Simon Linke, Jens G. Froese   +4 more
wiley   +1 more source