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Gasc Amandine, Gottesman B. L., Francomano D., Jung J. H., Durham M., Mateljak J., Pijanowski B. C. (2018). Soundscapes reveal disturbance impacts: biophonic response to wildfire in the Sonoran Desert Sky Islands. Landscape Ecology, 33 (8), 1399-1415. ISSN 0921-2973

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Lien direct chez l'éditeur doi:10.1007/s10980-018-0675-3

Titre
Soundscapes reveal disturbance impacts: biophonic response to wildfire in the Sonoran Desert Sky Islands
Année de publication2018
Type de documentArticle référencé dans le Web of Science WOS:000439347700012
AuteursGasc Amandine, Gottesman B. L., Francomano D., Jung J. H., Durham M., Mateljak J., Pijanowski B. C.
SourceLandscape Ecology, 2018, 33 (8), p. 1399-1415. ISSN 0921-2973
RésuméWhile remote sensing imagery is effective for quantifying land cover changes across large areas, its utility for directly assessing the response of animals to disturbance is limited. Soundscapes approaches-the recording and analysis of sounds in a landscape-could address this shortcoming. In 2011, a massive wildfire named "the Horseshoe 2 Burn" occurred in the Chiricahua National Monument, Arizona, USA. We evaluated the impact of this wildfire on acoustic activity of animal communities. In 2013, soundscape recordings were collected over 9 months in 12 burned and 12 non-burned sites in four ecological systems. The seasonal and diel biological acoustic activity were described using the "Bioacoustic Index", a detailed aural analysis of sound sources, and a new tool called "Sonic Timelapse Builder" (STLB). Seasonal biophony phenology showed a diurnal peak in June and a nocturnal peak in October in all ecological systems. On June mornings, acoustic activity was lower at burned than at non-burned sites in three of four ecological systems, due to a decreased abundance of cicadas directly impacted by the death of trees. Aural analyses revealed that 55% of recordings from non-burned sites contained insect sounds compared to 18% from burned sites. On October nights, orthopteran activity was more prevalent at some burned sites, possibly due to post-fire emergence of herbaceous. Soundscape approaches can help address long-term conservation issues involving the responses of animal communities to wildfire. Acoustic methods can serve as a valuable complement to remote sensing for disturbance-based landscape management.
Plan de classementEtudes, transformation, conservation du milieu naturel [082] ; Télédétection [126]
Descr. géo.ETATS UNIS ; ARIZONA
LocalisationFonds IRD [F B010073674]
Identifiant IRDfdi:010073674
Lien permanenthttp://www.documentation.ird.fr/hor/fdi:010073674

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