Development of vocalizations in the flat-headed bats, Tylonycteris pachypus and T. robustula (Chiroptera: Vespertilionidae)

Libiao Zhang; Gareth Jones; Stuart Parsons; Bing Liang; Shuyi Zhang

doi:10.3161/1733-5329(2005)7[91:DOVITF]2.0.CO;2

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Development of vocalizations in the flat-headed bats, Tylonycteris pachypus and T. robustula (Chiroptera: Vespertilionidae)

Journal article

Peer reviewed

Development of vocalizations in the flat-headed bats, Tylonycteris pachypus and T. robustula (Chiroptera: Vespertilionidae)

Libiao Zhang, Gareth Jones, Stuart Parsons, Bing Liang and Shuyi Zhang

Acta Chiropterologica, Vol.7(1), pp.91-99

2005

DOI: https://doi.org/10.3161/1733-5329(2005)7[91:DOVITF]2.0.CO;2

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Abstract

directive calls

flat-headed bats

isolation calls

precursor calls

Tylonycteris pachypus

T. robustula

vocal development

The development of vocalizations during postnatal growth in the flat-headed bats, Tylonycteris pachypus and T. robustula in South China is described. Females of both species gave birth to twins at the end of May, and the infants flew in the last ten days of June. Vocalizations served as precursors to echolocation calls and as isolation calls (i-calls) used to attract mothers. As the infants grew, the frequency of i-calls and precursor calls increased. The duration of i-calls increased little before 6-day old and then decreased. At the same time, the duration of echolocation precursor calls decreased. The directive calls that the mother or the infant emitted when searching for each other are also described. Female directive calls are lower in frequency and longer in duration than their echolocation calls, and the duration of infant directive calls is longer than those of the i-calls and precursor calls.

Details

Title: Development of vocalizations in the flat-headed bats, Tylonycteris pachypus and T. robustula (Chiroptera: Vespertilionidae)
Authors: Libiao Zhang (Author) - Chinese Academy of Sciences
Gareth Jones (Author) - University of Bristol
Stuart Parsons (Author) - University of Auckland
Bing Liang (Author) - Chinese Academy of Sciences
Shuyi Zhang (Author) - Chinese Academy of Sciences
Publication details: Acta Chiropterologica, Vol.7(1), pp.91-99; 9
Publisher: Polish Academy of Sciences
DOI: 10.3161/1733-5329(2005)7[91:DOVITF]2.0.CO;2
ISSN: 1733-5329
Organisation Unit: School of Science, Technology and Engineering; University of the Sunshine Coast, Queensland
Language: English
Record Identifier: 99576107002621
Output Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Web Of Science research areas: Zoology

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