Connecting Soundscapes to Landscapes: Modeling the Spatial Distribution of Sound

Mullet, Timothy C.

doi:10.1002/9781119230724.ch12

Cited by 3 publications

(1 citation statement)

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“…Spatial heterogeneity and sound propagation also play an essential role in acoustic monitoring designs. It has already been demonstrated in terrestrial environments that heterogeneous landscapes result in uneven distribution of sounds (Gómez, Isaza, & Daza, ; Mullet, ; Tucker, Gage, Williamson, & Fuller, ). The main practical challenge to consider when spatially designing a sampling protocol is the distance at which sounds can be detected from their source or active space.…”

Section: How To Undertake Pam In Freshwatermentioning

confidence: 99%

Passive acoustic monitoring as a potential tool to survey animal and ecosystem processes in freshwater environments

2019

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Biodiversity in freshwater habitats is decreasing faster than in any other type of environment, mostly as a result of human activities. Monitoring these losses can help guide mitigation efforts. In most studies, sampling strategies predominantly rely on collecting animal and vegetal specimens. Although these techniques produce valuable data, they are invasive, time‐consuming and typically permit only limited spatial and temporal replication. There is need for the development of complementary methods. As observed in other ecosystems, freshwater environments host animals that emit sounds, either to communicate or as a by‐product of their activity. The main freshwater soniferous groups are amphibians, fish, and macroinvertebrates (mainly Coleoptera and Hemiptera, but also some Decapoda, Odonata, and Trichoptera). Biophysical processes such as flow or sediment transport also produce sounds, as well as human activities within aquatic ecosystems. Such animals and processes can be recorded, remotely and autonomously, and provide information on local diversity and ecosystem health. Passive acoustic monitoring (PAM) is an emerging method already deployed in terrestrial environments that uses sounds to survey environments. Key advantages of PAM are its non‐invasive nature, as well as its ability to record autonomously and over long timescales. All these research topics are the main aims of ecoacoustics, a new scientific discipline investigating the ecological role of sounds. In this paper, we review the sources of sounds present in freshwater environments. We then underline areas of research in which PAM may be helpful emphasising the role of PAM for the development of ecoacoustics. Finally, we present methods used to record and analyse sounds in those environments. Passive acoustics represents a potentially revolutionary development in freshwater ecology, enabling continuous monitoring of dynamic bio‐physical processes to inform conservation practitioners and managers.

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Section: How To Undertake Pam In Freshwatermentioning

confidence: 99%