environmental acoustic research (ear) – objectives long-term (> years) monitoring of tropical...

ENVIRONMENTAL ACOUSTIC RESEARCH (EAR) – Objectives

long-term (> years) monitoring oftropical acoustic diversity to

(1) estimate and track extreme terrestrial acoustic diversity(2) assess acoustic variations within and between years

(3) correlate acoustics variations with global changes

. temporal and spatial acoustic heterogeniety assess with acoustic indices on a 3D audio sampling of the tropical forest

. automatic tracking of the singing activity of a focal species, the bird Lipaugus vociferans

ENVIRONMENTAL ACOUSTIC RESEARCH (EAR) – Results

French Guiana, Nouragues CNRS research stationDecember 2014, Field work by MNHN9 recording sites in harsh environment

ENVIRONMENTAL ACOUSTIC RESEARCH (EAR) – big audio data collection

4 habitatsunderstory (1.5m) and canopy (25m) microphones16 weather dataloggersrecording during 3 minutes every 30 minutes

high forest

low forest

rock savannah

swamp forest

ENVIRONMENTAL ACOUSTIC RESEARCH (EAR) – big audio data collection

Acoustic diversity indices (H, ACI, AR, Df, etc) – MNHNWavelet analysis – LSISSpectrogram imare ROIs (sensu Potamitis)

ENVIRONMENTAL ACOUSTIC RESEARCH (EAR) – sound decomposition