I realized that when all of these critter found these niches , a bandwidth so that all their voices can be heard -- just like instruments in an orchestra -- that a habitat was healthy , '' he said . He has recorded more than 2000 recordings of the sounds of the natural world . More than 50 % of his archive comes from places that no longer exist in the same form . Hence the term ' biophony ' for the organized musical soundscapes of nature .
He has recorded more than 2000 recordings of the sounds of the natural world . More than 50 % of his archive comes from places that no longer exist in the same form . Hence the term ' biophony ' for the organized musical soundscapes of nature .