VOCALISATIONS OF THE MÁSAFUERA RAYADITOAPHRASTURA MASAFUERAEON ISLA ALEJANDRO SELKIRK, CHILE
作者:
INGO HAHN,
HERMANN MATTES,
期刊:
Bioacoustics
(Taylor Available online 2000)
卷期:
Volume 11,
issue 2
页码: 149-158
ISSN:0952-4622
年代: 2000
DOI:10.1080/09524622.2000.9753456
出版商: Taylor & Francis Group
关键词: Vocalisation;Song description;Aphrastura masafuerae;Ovenbirds;Juan Fernandez Islands
数据来源: Taylor
摘要:
Three vocalisation types of the másafuera rayaditoAphrastura masafueraeare described using sonograms: common call, alarm call, and song. They are analysed according to their structure, kHz-frequency, duration and time of day. The common call can be uttered singly or in a series with regular pauses. This intensive call is heard even through fog and wind and seems to be used for contacting the partner as well as signalling the home range to neighbours. The alarm call is a continuous series of similar syllables without pauses. The song is given exclusively in the morning before sunrise by only one individual of the pair. It has one type of phrase only, which is repeated. Phrases are interrupted by regular pauses. These vocalisation types are clearly different from each other, but also have features in common: the monotonous structure, repetition of units and temporal frequency of elements.
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