The concept behind the Elephant Listening Project began to form in 1984 when Katy Payne, observing elephants in the Portland Zoo, discovered that elephants communicate in low frequencies. After four months in Portland,
Cornell University's acoustic biologists Carl Hopkins and Bob Capranica partnered with Payne to record and measure the infrasonic communication and behavior of elephants. By 1999 Payne published her elephant discoveries in her book
Silent Thunder, and the Elephant Listening Project was officially founded in the Laboratory of Ornithology to focus on long-term research on forest elephants. In 2005 Katy Payne retired and Peter Wrege took over the project. Since then the ELP has been listening to and studying elephant communication in the forests of Central Africa, applying Payne's insights to further her findings and to support the conservation of elephants. Co-founder of the ELP, Andrea Turkalo, conducts the longest-running study of forest elephants, at the
Dzanga forest clearing in the
Central African Republic. Turkalo has identified more than 4,000 individual elephants and has tracked their family relationships, social behavior, history of visits to the clearing, and reproduction. These data provide the most complete source of material available for understanding forest elephant demography and behavior. The ELP has ongoing monitoring studies in
Gabon,
Republic of Congo, and
Cameroon. Through the use of autonomous sound recorders, the ELP can monitor changes in elephant activity in response to environmental conditions and changing human commercial activity in the forests, and is using the detection of poaching activity to inform and improve anti-poaching patrol strategies. ==References==