Earthworms Change the Tune of Tundra Soils: Using Soundscapes to Detect the Presence of Non-Native Species

Keen, Sara; Wackett, Adrian; Willenbring, Jane; Yoo, Kyungsoo; Jonsson, Hanna; Clow, Travis; Klaminder, Jonatan

doi:10.2139/ssrn.4020172

Cited by 2 publications

(3 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This could partially explain the higher acoustic complexity detected in restored soils. For instance, earthworms form burrows through the soil as they seek carbon-rich areas, which serve as preferential networking pathways for plant root growth, water flow and gas transport (Lacoste et al 2018), all of which contribute to the soil soundscape (Gagliano et al 2017;Del Stabile et al 2022;Keen et al 2022).…”

Section: Restored Vs Degraded Soil Ecoacousticsmentioning

confidence: 99%

“…This was based on the assumption that the increased signals from biological activity in restored plots would outweigh low-frequency noise, with potential effects also from the attenuation properties of the system (Tashakor and Chamani 2021; Sangermano 2022) i.e., the Soil ecoacoustics in forest restoration energy loss of sound propagation in a given medium. It could also be that greater earthworm activity changes soil characteristics (making them more air permeable) to allow better propagation of higher-frequency sounds, thereby increasing NDSI scores (Keen et al 2022). Understanding the factors that affect this biophony-to-anthrophony ratio in a restoration context warrants further research.…”

Section: Restored Vs Degraded Soil Ecoacousticsmentioning

confidence: 99%

See 1 more Smart Citation

The sound of restored soil: Measuring soil biodiversity in a forest restoration chronosequence with ecoacoustics

Robinson

Breed

Abrahams

2023

Preprint

View full text Add to dashboard Cite

Forest restoration requires monitoring to assess changes in above- and below-ground communities, which is challenging due to practical and resource limitations. With emerging sound recording technologies, ecological acoustic survey methods - also known as ecoacoustics - are increasingly available. These provide a rapid, effective, and non-intrusive means of monitoring biodiversity. Above-ground ecoacoustics is increasingly widespread, but soil ecoacoustics has yet to be utilised in restoration despite its demonstrable effectiveness at detecting meso- and macrofauna acoustic signals. This study applied ecoacoustic tools and indices (Acoustic Complexity Index, Normalised Difference Soundscape Index, and Bioacoustic Index) to measure above- and below-ground biodiversity in a forest restoration chronosequence. We hypothesised that higher acoustic complexity, diversity and high-frequency to low-frequency ratio would be detected in restored forest plots. We collected n = 198 below-ground samples and n = 180 ambient and controlled samples from three recently degraded (within 10 years) and three restored (30-51 years ago) deciduous forest plots across three monthly visits. We used passive acoustic monitoring to record above-ground biological sounds and a below-ground sampling device and sound-attenuation chamber to record soil communities. We found that restored plot acoustic complexity and diversity were higher in the sound-attenuation chamber soil but not in situ or above-ground samples. Moreover, we found that restored plots had a significantly greater high-frequency to low-frequency ratio for soil, but no such association for above-ground samples. Our results suggest that ecoacoustics has the potential to monitor below-ground biodiversity, adding to the restoration ecology toolkit and supporting global ecosystem recovery.

show abstract

Section: Restored Vs Degraded Soil Ecoacousticsmentioning

confidence: 99%

Section: Restored Vs Degraded Soil Ecoacousticsmentioning

confidence: 99%

The sound of restored soil: Measuring soil biodiversity in a forest restoration chronosequence with ecoacoustics

Robinson

Breed

Abrahams

2023

Preprint

View full text Add to dashboard Cite

show abstract

“…Despite being apparently well-suited to the task, ecoacoustic analytical techniques have rarely been used to monitor soundscape dynamics below the ground. Only four studies have used soundscapes to compare soil biodiversity in different locations (Keen et al;2022, Maeder et al;, Maeder et al, 2022Robinson et al, 2023), all of which used different methodologies and equipment, and have all been conducted in temperate and polar regions. We are unaware of any studies from the tropics.…”

Section: Introductionmentioning

confidence: 99%

Listening to tropical forest soils

Metcalf,

Baccaro,

Barlow

et al. 2023

Preprint

View full text Add to dashboard Cite

PAM has proven to be an effective tool for monitoring biotic soundscapes in the marine, terrestrial, and aquatic realms. Recently it has been suggested that it could also be an effective method for monitoring soil fauna, but has so far been used in only four studies in temperate and polar regions. We present the first study of soil soundscapes in tropical forests, using a novel analytical pipeline allowing for the use of in-situ recording of soundscapes with minimal soil disturbance. We found significant differences in soil soundscapes between burnt and unburnt forests and the first indications of a diel cycle in soil soundscapes. These promising results and methodological advances highlight the potential of PAM for large-scale and long-term monitoring of soil biodiversity. We use the results to discuss research priorities, including relating soil biophony to biodiversity, community structure and ecosystem functioning, and the use of appropriate hardware and analytical techniques.

show abstract

Earthworms Change the Tune of Tundra Soils: Using Soundscapes to Detect the Presence of Non-Native Species

Cited by 2 publications

References 50 publications

The sound of restored soil: Measuring soil biodiversity in a forest restoration chronosequence with ecoacoustics

The sound of restored soil: Measuring soil biodiversity in a forest restoration chronosequence with ecoacoustics

Listening to tropical forest soils

Contact Info

Product

Resources

About