4.2.3. Close versus far site
In the wet season, the higher ACI values at night at the site far from
the mine in comparison with the values from the same period at the
site close to themine,may be a direct effect of a higher number of species
vocalizing, especially insects. Noise has already been proven to affect species
diversity and the population density of birds in areas close tomining
activity (Saha and Padhy, 2011). The results of this study demonstrate
that the number of species detected was lower at the site close to the
mine and that the species composition was different between the two
sites. Many studies concerning the effects of road noise on animals have
revealed that there is a strong negative relationship between traffic intensity
and species richness, with changes occurring in composition and