02697nas a2200265 4500008004100000022001400041245010900055210006900164260001600233520187100249653002502120653001602145653001902161653002002180653001502200653001302215100001902228700002802247700002202275700001602297700001702313700002002330700002602350856005502376 2018 eng d a0921-297300aSoundscapes reveal disturbance impacts: biophonic response to wildfire in the Sonoran Desert Sky Islands0 aSoundscapes reveal disturbance impacts biophonic response to wil cOct-07-20183 a

Context
While 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.

Objectives
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.

Methods
In 2013, soundscape recordings were col- lected 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 Time- lapse Builder’’ (STLB).


Results
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 com- pared 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.

Conclusions
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.

10aConservation biology10adisturbance10aRemote sensing10aSonic timelapse10aSoundscape10aWildfire1 aGasc, Amandine1 aGottesman, Benjamin, L.1 aFrancomano, Dante1 aJung, Jinha1 aDurham, Mark1 aMateljak, Jason1 aPijanowski, Bryan, C. uhttp://link.springer.com/10.1007/s10980-018-0675-3