Description
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英語
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由AmphibiaWeb articles提供
Female: 22-28 mm, Male: 18-22 mm. Dorsum uniformly black without blotches. Belly black with red and/or yellow blotches. Interdigital web poorly developed. Throat dark. Sexual dimorphism is not evident. This species could be easily confused with Melanophryniscus montevidensis.
- Achaval, F., and Olmos, A. (2003). Anfibios y reptiles del Uruguay Ed. Graphis. Serie Fauna N°, Montevideo, Uruguay.
- Klappenbach, M. A., and Langone, J. A. (1992). ''Lista sistemática y sinonímica de los anfibios del Uruguay con comentarios y notas sobre su distribución.'' Anales del Museo Nacional de Historia Natural de Montevideo (2a Serie), 8, 163-222.
- Kwet, A., Maneyro, R., Zillikens, A., and Mebs, D. (2005). ''Advertisement calls of Melanophryniscus dorsalis (Mertens, 1933) and M. montevidensis (Philippi, 1902), two parapatric species from southern Brazil and Uruguay, with comments on morphological variation in the Melanophryniscus stelzneri group (Anura: Bufonidae).'' Salamandra, 41(1/2), 1-18.
- Kwet, A., and Miranda, T. (2001). ''Zur Biologie und Taxonomie der Swarzkrote Melanophryniscus atroluteus (Miranda-Ribeiro, 1920).'' Herpetofauna, 23, 19-27.
- Langone, J. A. (1994). Ranas y sapos del Uruguay (reconocimientos y aspectos biológicos). Museo Damaso Antonio Larrañaga 5, Serie de Divulgación
- Maneyro, R., Forni, F., and Santos, M. (1995). Anfibios del Departamento de Rocha. Serie Divulgación Técnica 1 (PROBIDES), Rocha, Uruguay.
- Maneyro, R., and Langone, J. A. (2001). ''Categorización de los anfibios del Uruguay.'' Cuadernos de Herpetología, 15(2), 107-118.
- Miranda-Ribeiro, A. (1920). ''Os Brachycephalideos do Museu Paulista (com tres especies novas).'' Revista do Museu Paulista, 12, 305-313.
- Núñez, D., Maneyro, R., Langone, J. A. and De Sá, R. O. (2004). ''Distribución geográfica de la fauna de anfibios del Uruguay.'' Smithsonian Herpetological Information Series, 134, 1-34.
Distribution and Habitat
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英語
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由AmphibiaWeb articles提供
This species inhabits grasslands, open savannas and some areas with rocky soils. Widespread in Pampas grasslands (South America).
Life History, Abundance, Activity, and Special Behaviors
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英語
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由AmphibiaWeb articles提供
These diurnal toads are active throughout the year and they are explosive breeders. They reproduce in temporary ponds, following heavy rains. The advertisements calls have two components: a repeated whistle, followed by a train of vibrations. During amplexus females release about one hundred eggs in several immersion events. This species exhibits a defensive behaviour ("Unkenreflex").
Life History, Abundance, Activity, and Special Behaviors
(
英語
)
由AmphibiaWeb articles提供
M. atroluteus is a common species in Uruguay in habitats with extensive cattle raising. Intensive livestock could affect reproductive habitat quality (i.e. hard soils - compactation).
