Hearing in the crepuscular owl butterfly (Caligo eurilochus, Nymphalidae).
Hearing in the crepuscular owl butterfly (Caligo eurilochus, Nymphalidae).
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黄昏鸮蝴蝶(Caligo eurilochus,蛱蝶科)的听力。
DOI:
10.1007/s00359-014-0933-z
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发表时间:
2014
期刊:
影响因子:
--
通讯作者:
Lucas KM
中科院分区:
文献类型:
--
作者:
Lucas KM
Tympanal organs are widespread in Nymphalidae butterflies, with a great deal of variability in the morphology of these ears. How this variation reflects differences in hearing physiology is not currently understood. This study provides the first examination of hearing organs in the crepuscular owl butterfly,Caligo eurilochus. We examined the tuning and sensitivity of theC. eurilochushearing organ, called Vogel’s organ, using laser Doppler vibrometry and extracellular neurophysiology. We show that theC. eurilochusear responds to sound and is most sensitive to frequencies between 1 and 4 kHz, as confirmed by both the vibration of the tympanal membrane and the physiological response of the associated nerve branches. In comparison to the hearing of its diurnally active relative,Morpho peleides,C. eurilochushas a narrower frequency range with higher auditory thresholds. Hypotheses explaining the function of hearing in this crepuscular butterfly are discussed.