Sound production in the eastern hognose snake, Heterodon platyrhinos (Serpentes: Colubridae): Does it snore?

in Amphibia-Reptilia
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Abstract

Heterodon platyrhinos normally produces sounds as one part of its elaborate defensive behavior. This species has a distinctive quadriphasic sound, reflecting the underlying triphasic ventilatory pattern of snakes. Heterodon produces sound during both inhalation and exhalation; in both cases the sounds span a broad frequency range (from approximately 1,000 to 11,000 Hz, with frequencies below 3,500 Hz having higher amplitudes. Temporal congruence between sound production and deflection of a strain gauge mounted over the external nares of unrestrained H. platyrhinos provide the first experimental evidence for sound production through the nasal passageway in snakes.

Sound production in the eastern hognose snake, Heterodon platyrhinos (Serpentes: Colubridae): Does it snore?

in Amphibia-Reptilia

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