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Complex and highly saturated soundscapes in restored oak woodlands reflect avian richness and abundance.
Persche, Maia E; Sagar, H S Sathya Chandra; Burivalova, Zuzana; Pidgeon, Anna M.
Afiliación
  • Persche ME; Department of Forest and Wildlife Ecology, University of Wisconsin-Madison, 1630 Linden Drive, Madison, WI, 53706, USA. persche@wisc.edu.
  • Sagar HSSC; Department of Forest and Wildlife Ecology, University of Wisconsin-Madison, 1630 Linden Drive, Madison, WI, 53706, USA.
  • Burivalova Z; Department of Forest and Wildlife Ecology, University of Wisconsin-Madison, 1630 Linden Drive, Madison, WI, 53706, USA.
  • Pidgeon AM; Nelson Institute for Environmental Studies, University of Wisconsin-Madison, 550 N Park Street, Madison, WI, 53706, USA.
Oecologia ; 205(3-4): 597-612, 2024 Aug.
Article en En | MEDLINE | ID: mdl-39042168
ABSTRACT
Temperate woodlands are biodiverse natural communities threatened by land use change and fire suppression. Excluding historic disturbance regimes of periodic groundfires from woodlands causes degradation, resulting from changes in the plant community and subsequent biodiversity loss. Restoration, through prescribed fire and tree thinning, can reverse biodiversity losses, however, because the diversity of woodland species spans many taxa, efficiently quantifying biodiversity can be challenging. We assessed whether soundscapes in an eastern North American woodland reflect biodiversity changes during restoration measured in a concurrent multitrophic field study. In five restored and five degraded woodland sites in Wisconsin, USA, we sampled vegetation, measured arthropod biomass, conducted bird surveys, and recorded soundscapes for five days of every 15-day period from May to August 2022. We calculated two complementary acoustic indices Soundscape Saturation, which focuses on all acoustically active species, and Acoustic Complexity Index (ACI), which was developed to study vocalizing birds. We used generalized additive models to predict both indices based on Julian date, time of day, and level of habitat degradation. We found that restored woodlands had higher arthropod biomass, and higher richness and abundance of breeding birds. Additionally, soundscapes in restored sites had higher mean Soundscape Saturation and higher mean ACI. Restored woodland acoustic indices exhibited greater magnitudes of daily and seasonal peaks. We conclude that woodland restoration results in higher soundscape saturation and complexity, due to greater richness and abundance of vocalizing animals. This bioacoustic signature of restoration offers a promising monitoring tool for efficiently documenting differences in woodland biodiversity.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Aves / Bosques / Biodiversidad Límite: Animals Idioma: En Revista: Oecologia Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Alemania

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Aves / Bosques / Biodiversidad Límite: Animals Idioma: En Revista: Oecologia Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Alemania