Please use this identifier to cite or link to this item: http://hdl.handle.net/10174/38577

Title: Acoustic detection and occupancy models: A systematic review with insights for future monitoring programs
Authors: Martins, Frederico
Segurado, Pedro
Marques, J. Tiago
Keywords: morcegos
occupancy
modelação
Issue Date: Aug-2024
Citation: Martins, F., Segurado, P., Marques, J. T. (2024, September 2–6). Acoustic detection and occupancy models: A systematic review with insights for future monitoring programs [Conference presentation abstract]. European Bat Research Symposium, Tarragona, Spain.
Abstract: Wildlife management requires monitoring to infer spatiotemporal changes in the distribution or abundance of species and communities of organisms. Technological advancements have increasingly facilitated monitoring species through new data collection methods. Such technological advancements include small-sized acoustic recording devices that can record a wide range of sound frequencies, making them especially suitable for analysis by recently developed statistical tools such as occupancy models. We reviewed 108 publications that used acoustic methods and occupancy modelling to synthesise and discuss the potential of combining these two methodologies in future research studies in ecology and conservation. We found that 50% of these studies limited their analysis to the simplest modelling solution, single-season and single-species models, even though many recorded multiple species and sampled across several seasons. This limited analysis hinders the retrieval of complete information from available datasets because more complex models, such as the multi-species occupancy models, provide more robust occupancy parameters for both commonly and rarely detected species. We also argue that multiple-season or dynamic models are easy to implement and essential for monitoring species’ temporal fluctuations. Recent developments in occupancy include modelling false-positive detections, which have been applied in only 11 revised publications. This modelling approach seems particularly underused as many species cannot be accurately distinguished solely based on acoustic data. Finally, we noted a geographical imbalance in implementing acoustic methods with occupancy models; research was performed primarily on study sites in North America. Coupling low-cost passive acoustic monitoring with a diversified set of occupancy models is a scalable methodology that can help to implement standardised protocols for regional and larger-scale monitoring programs. Long-term monitoring programs will significantly benefit from such protocols by informing habitat and wildlife management more effectively, which are thus critical for animal conservation in an increasingly anthropogenic landscape.
URI: http://hdl.handle.net/10174/38577
Type: lecture
Appears in Collections:MED - Comunicações - Em Congressos Científicos Internacionais

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