Sains Malaysiana 39(3)(2010): 363–369
Mating Calls Description of Five Species of
Frogs from the Genus Hylarana Tschudi 1838 (Amphibia, Anura, Ranidae) from Sarawak, Malaysia
(Pencirian Panggilan Pengawanan Lima Spesies Katak Genus Hylarana Tschudi 1838
(Amphibia, Anura, Ranidae) dari Sarawak, Malaysia)
Ramlah Zainudin1, Mustafa A. Rahman1, Badrul
Munir M. Zain2,
M. N. Shukor2, R. F. Inger3, & A. Norhayati2*
1Jabatan Zoologi
Fakulti Sains dan Teknologi Sumber
Universiti Malaysia Sarawak, 94300 Kota Samarahan, Sarawak, Malaysia
2Pusat Pengajian Sains Sekitaran dan Sumber
Alam
Fakulti Sains dan Teknologi, Universiti Kebangsaan Malaysia, 43600
UKM Bangi, Selangor D. E., Malaysia
3The Field Museum of Natural History
1400 South Lake Shore Drive, Chicago, Illinois, 60605 USA
Diserahkan: 17 Mac 2009 / Diterima: 19 Oktober 2009
ABSTRACT
Recordings
of frog calls from the genus Hylarana were
conducted at seven study sites in Sarawak, Malaysia. The results showed that
each species differs in terms of call characteristics, in which a high number
of pulsed note belongs to H. baramica,
while high repetition note belongs to the sibling species, H.
glandulosa. Higher pitched and number of amplitude
spectrum, however, belong to H. signata.
Pulsed note and note repetition differed significantly among species, except
for spectrum amplitude. Advertisement calls for each species were described in
detail. This study provide a baseline data on advertisement call
characteristics of frogs from the genus Hylarana for future studies of these frogs particularly and the Oriental
frogs generally.
Keywords:
Acoustic characteristic; amplitude spectrum; Hylarana,
note; pitch; pulse
ABSTRAK
Rakaman
panggilan katak daripada genus Hylarana telah
dijalankan di tujuh kawasan kajian di Sarawak, Malaysia. Hasil kajian
menunjukkan bahawa setiap spesies berbeza daripada segi ciri panggilan, iaitu
nota yang bernada banyak ditunjukkan oleh Hylarana
baramica, manakala nota berulang yang tinggi
ditunjukkan oleh H. glandulosa.
Nota yang berfrekuensi tinggi dan bilangan spektrum amplitud yang lebih tinggi
dimiliki oleh H. signata.
Nota bernada dan nada berulang berbeza dengan ketara di kalangan spesies,
kecuali spektrum amplitud. Panggilan mengawan untuk setiap spesies diterangkan
dengan terperinci. Kajian ini menyumbang kepada pangkalan data asas untuk ciri
panggilan mengawan katak daripada genus Hylarana untuk kajian mengenai katak ini khususnya dan katak Oriental
amnya.
Kata
kunci: Ciri akustik; denyut; hylarana; nota; pic; spektrum amplitud
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*Pengarang
untuk surat-menyurat; email: noryati@ukm.my
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