First record of the torrent frog Hylodes heyeri (Anura, Hylodidae) in Santa Catarina State, South Brazil and acoustic comparison with the cryptic species Hylodes perplicatus (Anura, Hylodidae)

Biotemas

Juliane Petry de Carli Monteiro¹  Rodrigo Lingnau²  Estevão Jasper Comitti³ 

[1] Hori Consultoria Ambiental;Universidade Tecnológica Federal do Paraná, Campus Francisco Beltrão;Universidade da Região de Joinville;

关键词: Advertisement call;    Bioacoustic;    Cryptic species;    Geographic distribution;    Vocalizations;   

DOI  :  10.5007/2175-7925.2014v27n4p93

来源: DOAJ

【 摘 要 】

Herein, we report the first record of the torrent frog Hylodes heyeri in Santa Catarina State, South Brazil, previously known from localities along the Atlantic Rainforest in the states of São Paulo and Paraná. We also performed an acoustic comparison between the calls of H. heyeri and H. perplicatus due to their morphological similarity and because now they could be found in sympatry. There was a greater variation in advertisement call duration for both species, than previously stated in the literature, probably related to variation in air temperature. To distinguish the two species, besides the differences in dominant frequency, a temporal parameter that could be used was the interval between notes, but call duration should not be used due to the influence of air temperature. Our findings reinforce the urgency for more field activities to enhance our knowledge of the geographic distribution of anuran amphibians, to promote their conservation, and to call attention to the importance of detailed acoustic analysis to distinguish cryptic species.

【 授权许可】

Unknown