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Titolo:
HEARING IN THE FM-BAT PHYLLOSTOMUS DISCOLOR - A BEHAVIORAL AUDIOGRAM
Autore:
ESSER KH; DAUCHER A;
Indirizzi:
UNIV ULM,ABT VERGLEICHENDE NEUROBIOL,ALBERT EINSTEIN ALLEE 11 D-89069ULM GERMANY
Titolo Testata:
Journal of comparative physiology. A, Sensory, neural, and behavioral physiology
fascicolo: 6, volume: 178, anno: 1996,
pagine: 779 - 785
SICI:
0340-7594(1996)178:6<779:HITFPD>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Soggetto:
SENSITIVITY; CHIROPTERA; AUDITION;
Keywords:
AUDITORY THRESHOLDS; OPERANT CONDITIONING; VOCALIZATION; ECHOLOCATION CALLS; CHIROPTERA;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
26
Recensione:
Indirizzi per estratti:
Citazione:
K.H. Esser e A. Daucher, "HEARING IN THE FM-BAT PHYLLOSTOMUS DISCOLOR - A BEHAVIORAL AUDIOGRAM", Journal of comparative physiology. A, Sensory, neural, and behavioral physiology, 178(6), 1996, pp. 779-785

Abstract

Absolute auditory thresholds of six adult lesser spear-nosed bats Phyllostomus discolor (Chiroptera, Phyllostomidae) were determined in a two-alternative forced-choice procedure. Behavioral responses to pure tone stimuli could be elicited throughout the tested frequency range of5-142 kHz. The shape of the average audiogram is characterized by twosensitivity peaks and a pronounced increase of thresholds around 55 kHz, and towards the limits of the tested frequency range. The spectralextent of both sensitivity peaks shows a close relation to the bandwidth of two types of species-specific vocalizations. The first low threshold area (> 10 and < 55 kHz) of the audiogram seems perfectly adapted to the directive call used for intra-specific communication, whereasthe second sensitivity peak, centered around 85 kHz, covers most of the bandwidth of the species' echolocation calls.

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Documento generato il 29/11/20 alle ore 07:02:57