Abstract:
:The acoustic behaviour of 15 sympatric and synchronically breeding species of frogs in an area of floating meadows near Manaus (Brazil) was studied for a period of 8 months. The calling positions of each species can be identified with certain physiognomic types of vegetation.Sound analyses were used to compare the mating calls. The main variables are dominant frequency, call duration and pulse repetition rate. Each of the 15 species has a distinct mating call and differs from the acoustic behaviour of each other one. Eleven species are separated in their dominant frequency ranges within their specific calling sites. Species sharing emphasised frequency ranges within identical calling sites differ greatly in at least two temporal variables.The roles of calling position, spectral, and temporal features of mating calls in species recognition and premating reproductive isolation are discussed.
journal_name
Oecologiajournal_title
Oecologiaauthors
Hödl Wdoi
10.1007/BF00345990subject
Has Abstractpub_date
1977-12-01 00:00:00pages
351-363issue
4eissn
0029-8549issn
1432-1939pii
10.1007/BF00345990journal_volume
28pub_type
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