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Brief Summary

    Hylodes asper: Brief Summary
    provided by wikipedia

    Hylodes asper, or the Brazilian torrent frog, is a species of frogs in the Hylodidae family. It is endemic to the Rio de Janeiro and São Paulo states in southerastern Brazil. Living in a high-noise environment, the species uses "semaphoring" to supplement acoustic signalling.

    Brief Summary
    provided by IABIN
    Diagnosis Toes with distinct dorsal scutes and extensive fringing on the sides of the toes. Lacks thumb spines. The tympanum is distinct. Lacks a light lateral stripe.

Comprehensive Description

Distribution

    Distribution and Habitat
    provided by AmphibiaWeb text

    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).

    Distribution
    provided by IABIN
    Known from the States of Rio de Janeiro, São Paulo and Paraná, Brazil.

Morphology

    Morphology
    provided by IABIN
    Arbustivo

Diagnostic Description

    Diagnostic Description
    provided by IABIN
    Adult morphology Snout outline subovoid from above, rounded-acute to acute in profile: no cranial crests; upper eyelids lacking distinctive features: tympanum distinct to somewhat indistinct. Diameter about 1/2 eye diameter: male vocal sac present, paired. external expanded laterally: vomerine teeth in short obtuse or transverse series lying between posterior border of choanae; finger lengths I

Behavior

    Behavior
    provided by IABIN
    India

Cyclicity

    Cyclicity
    provided by IABIN
    Abril/out

Life Cycle

    Life Cycle
    provided by IABIN
    Perene

Reproduction

    Reproduction
    provided by IABIN
    vegetativa

Molecular Biology

    Molecular Biology
    provided by IABIN
    óleo essencial

Conservation Status

    Conservation Status
    provided by IABIN
    LC. Least Concern.

Trends

    Life History, Abundance, Activity, and Special Behaviors
    provided by AmphibiaWeb text

    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.