Karakteristik Suara Kelompok Kodok Microhylidae Bertubuh Kecil Asdal Bali (Anura: Microhylidae)

Abstract

Advertisement calls of Microhyla palmipes and Oreophryne monticola have never been described before; however
characteristics of M. orientalis’s calls has been described just to support new species publication. The advertisement calls of
two individual males of M. orientalis and M. palmipes which originated from Wongaya Gede, Bali were recorded in July
2010 at air temperatures of 26.0°C. Three individuals males of O. monticola were recorded in Eka Karya Botanical Garden,
Bali at air temperature of 25.0°C. Call components were obtained from 65 calls of M. orientalis, consisting of 95 pulses; 10
calls of M. palmipes, consisting of 113 pulses; 3 calls of O. monticola, consisting of 127 pulses, which were then analyzed to
obtain the characteristics of sound waves by using software of Adobe Audition 3.0. Sound waves of M. orientalis mainly
consists of two dominant frequencies raging from 1873-2062 Hz and 3375-3562 Hz; however sound waves of M. palmipes
and O. monticola mainly consist of only one dominant frequency that ranges of the frequency is the same, i.e. 3000-3937
Hz. Although M. palmipes and O. monticola have the same range on dominant frequency, but the two species have significantly
different on number of period per pulse, pulse duration, pulse interval, pulse period, call duration and call interval.
Key words: frog call, Microhylidae, Bali Island