hear call (716.3K MP3 file)

[call details here]

Distribution and Habitat

Country distribution from AmphibiaWeb's database: Brazil

	View distribution map in BerkeleyMapper.
	View Bd and Bsal data (67 records).

This species occurs in southeastern Brazil, in the states of Rio de Janeiro, São Paulo, and Paraná. It is found in both primary and secondary forest, along forest streams and rivers, on steep hillsides up to 1,200 m above sea level (IUCN 2006).

Life History, Abundance, Activity, and Special Behaviors
Hylodes asper lives along forest streams and rivers. For territorial displays in this high-noise environment, the frog uses a kind of semaphoring (slowly raising and waving a rear leg, one at a time), in addition to calling. This behavior is known as foot-flagging, since the slow waving of the frog's large rear foot resembles a flag waving.

Comments

The video below shows foot-flagging display in Hylodes asper. Published with permission from the Institute of Zoology, Vienna, Austria (W. Hoedl).

References

Haddad, C. F. B., and Giaretta, A. A. (1999). ''Visual and acoustic communication in the Brazilian torrent frog, Hylodes asper (Anura: Leptodactylidae).'' Herpetologica, 55, 324-333.

Species Account Citation: AmphibiaWeb 2014 Hylodes asper: Brazilian Torrent Frog <https://amphibiaweb.org/species/3459> University of California, Berkeley, CA, USA. Accessed Nov 26, 2024.

Citation: AmphibiaWeb. 2024. <https://amphibiaweb.org> University of California, Berkeley, CA, USA. Accessed 26 Nov 2024.

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