Sound Wave Frequency Study to Annoy in Wild Elephants

Abstract

The study had proceeded at some agricultural area nearby Kuiburi National Park, Kuiburi District, Prachuab Kirikhan Province during on January - July 2007. The result, some sound wave frequencies disturb wild elephants whenever they came to agriculture area were about 21 kHz - 28 kHz, range on 30-100 meters (m.), source to the elephant. There had been 11 tests on 28 elephants in the study and all elephants move from the place that they live when they hear the sound wave. In the same time, some behaviors had been revealed 4 patterns are as following: First, suddenly they walk into the jungle, 6 time on about 54.54% from 11 time. Second, immediately move when some sound wave were release but they are far about 30-70 meters from origin, 3 time on about 27.27%. Third, a time on about 9.09% when elephants hear sound wave, in the same time, they walk and trumpet to the jungle. Lastly, while the sound wave was broadcasted an elephant was eating some plants about 15-20 minute before return to the jungle, it just only one and that is 9.09% from 11 time. Whereas, whenever sound wave was discharged and changed over and over on 21-28 kHz and 28-21 kHz, that elephant suddenly move from the place.