2007/07/01 by Rodrigo Lingnau, Rogério P. Bastos, Rogério Pereira Bastos · 8 citations
Agricultural and Biological Sciences · Biochemistry, Genetics and Molecular Biology · Environmental Science · #Acoustics #Advertising #Air temperature #Amphibian and Reptile Biology #Animal Behavior and Reproduction #Animal Vocal Communication and Behavior #Biology #Call duration #Courtship #Ecology #Geography #Meteorology #Repertoire #Telecommunications #Variation (astronomy)
paper · doi:10.1080/00222930701395626
openalex publication_date 2007/07/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/04
In this study we analysed the acoustic activity of Hylodes heyeri in areas of Atlantic Forest, in southern Brazil. Observations were made in November 2001 and from January to April 2002, at Estação II Instituto Agronômico do Paraná, municipality of Morretes, State of Paraná. Males displayed three different vocalizations: advertisement calls, territorial calls, and courtship calls. Temporal and spectral parameters of advertisement and territorial calls were analysed, along with call intensity. The duration of the advertisement call showed a negative correlation with air temperature, with males decreasing the duration of advertisement calls at higher temperatures. Male body size was not correlated with any of the acoustic parameters. Details on habitat use, distances to nearest vocalizing neighbour, and daily calling activity are also included.