Description
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This species can be diagnosed by the following combination of characters: body size (females 34-37 mm SVL, males 24-29 mm SVL); smooth dorsal skin; axillary membrane present; fingers one-half webbed; toes two-thirds webbed; dorsum mottled dark and light brown; lighter markings of creamy white to golden yellow with irregular edges: broad light mark on snout, diagonal light mark running from eyelid to mid-flank, diagonal mark on shank; orange coloration on hands, feet, concealed surfaces of limbs, ventral surfaces of limbs; coppery bronze iris; males with yellow vocal sac and lacking nuptial pads; females with white throat (Rodríguez and Duellman 1994). Similar species: D. sarayacuensis can be distinguished from D. leucophyllatus by coloration (mottled dark and light brown dorsum with white to golden yellow markings for D. sarayacuensis, vs. creamy tan dorsum with a dark brown hourglass marking for D. leucophyllatus. D. sarayacuensis can be distinguished from D. triangulum by coloration (orange hands, feet, and concealed surfaces of limbs in D. sarayacuensis, vs. distinctly red webbing and red concealed surfaces of limbs in D. triangulum) (Rodríguez and Duellman 1994).Tadpoles reach a maximum total length of 22.5 mm, with 30% of that being body and 70% the tail. The larval body is violin-shaped when viewed from above, with a tail ending in a long filament. The snout is bluntly rounded when viewed from above. Eyes are large and are laterally directed. The oral disc is anterior and is bordered by a single row of papillae laterally and ventrally; denticles are absent. Jaw sheats are finely serrated and are robust. The dorsal tail fin does not extend onto the body and is slightly lower than the ventral tail fin. The larval body is reddish brown to gray, with a metallic gold venter and a black or gray tail with black markings (Rodríguez and Duellman 1994). For a drawing of the tadpole and a key to hylid tadpoles of the eastern lowlands of Colombia see Lynch and Mayorga (2011).First described by Shreve (1935); the name sarayacuensis refers to the type locality of Sarayacu, province of Pastaza, Ecuador. Faivovich et al. (2005) placed D. sarayacuensis in the leucophyllatus group with D. bifurcus, D. ebraccatus, D. elegans, D. leucophyllatus, D. rossalleni, and D. triangulum, and the analysis of Wiens et al. (2010) also supports this grouping. Wiens and colleagues found that D. anceps did not cluster with this group, in contrast to the analysis of Faivovich et al. (2005).Click here to download a .pdf of Hödl's (1991) paper describing the film.
- Aichinger, M. (1987). ''Annual activity patterns of anurans in a seasonal neotropical environment.'' Oecologia, 71, 583-592.
- Barrio-Amorós, C. L. (1998). ''Sistematica y biogeografía de los anfibios (Amphibia) de Venezuela.'' Acta Biologica Venezuelica, 18, 1-93.
- Barrio-Amorós, C. L. (1998). ''Sistematica y biogeografía de los anfibios (Amphibia) de Venezuela/Systematics and biogeography of the amphibians (Amphibia) of Venezuela.'' Acta Biologica Venezuelica, 18, 1-93.
- Bernarde, P. S., Machado, R. A., and Turci, L. C. B. (2011). ''Herpetofauna da área do Igarapé Esperança na Reserva Extrativista Riozinho da Liberdade, Acre - Brasil.'' Biota Neotropica, 11, 117-144.
- Bustamante, M. R., Ron, S. R., and Coloma, L. A. (2005). ''Cambios en la diversidad en siete comunidades de anuros en los Andes de Ecuador.'' Biotropica, 37, 180-189.
- Crump, M. L., and Kaplan, R. H. (1979). ''Clutch energy partitioning of tropical tree frogs (Hylidae).'' Copeia, 1979, 626-635.
- Duellman, W. E. (1972). ''A new species of Hyla from Amazonian Ecuador.'' Copeia, 2, 265-271.
- Duellman, W. E. and Pyles, R. A. (1983). ''Acoustic resource partitioning in anuran communities.'' Copeia, 3, 639-649.
- Dyer, W. G., and Altig, R. (1976). ''Redescription of Cosmocerca brasiliensis Travassos 1925 (Nematoda: Cosmocercidae) from Ecuadorian frogs.'' The Journal of Parasitology, 62, 262-264.
- Dyer, W. G., and Altig, R. (1977). ''Helminths of some Ecuadorian anurans.'' Herpetologica, 33, 293-296.
- Galatti, U. (1999). Avaliação ecológica rápida da Reserva Biológica Estadual Rio Ouro Preto, Guajará-Mirim, Rondônia. Inventário da herpetofauna da Res. Biol. rio Ouro Preto. Final Report. Programa das Nações Unidas para o Desenvolvimento / Plano Agropecuário e Florestal de Rondôdia (PNUD/PLANAFLORO), Rôndonia, Brazil.
- Gascon, C. and Pereira, O. S. (1993). ''Preliminary checklist of the herpetofauna of the upper rio Urucu, Amazonas.'' Revista Brasileira de Zoologia, 10, 179-183.
- Lynch, J. D. and Mayorga, A. M. S. (2011). ''Clave ilustrada de los renacuajos en las tierras bajas al oriente de los Andes, con énfasis en Hylidae.'' Caldasia, 33, 235-270.
- McDiarmid, R. W. and Paolillo, A. (1988). ''Herpetological collections: Cerro de la Neblina.'' Cerro de la Neblina: Resultados de la expedición 1983-1987. FUDECI, Caracas.
- Pearman, P. B. (1997). ''Correlates of amphibian diversity in an altered landscape of Amazonian Ecuador.'' Conservation Biology, 11, 1211-1225.
- Rodriguez, L. B., and Cadle, J. E. (1990). ''A preliminary overview of the herpetofauna of Coca Cashu, Manu National Park, Peru.'' Four Neotropical Rainforests. A. H. Gentry, eds., Yale University Press, New Haven, Connecticut.
- Shreve, B. (1935). ''On a new teiid and amphibia from Panamá, Ecuador, and Paraguay.'' Occasional Papers of the Boston Society of Natural History, 8, 209-218.
- Thibaudeau, D. G., and Altig, R. (1988). ''Sequence of ontogenetic development and atrophy of the oral apparatus of six anuran tadpoles.'' Journal of Morphology, 197, 63-69.
- Toft, C. A., and Duellman, W. E. (1979). ''Anurans of the lower Río Llullapichis, Amazonian Perú: a preliminary analysis of community structure.'' Herpetologica, 35, 71-77.
- Wiens, J. J., Kuczynski, C. A., Hua, X., and Moen, D. S. (2010). ''An expanded phylogeny of treefrogs (Hylidae) based on nuclear and mitochondrial sequence data.'' Molecular Phylogenetics and Evolution, 55, 871-882.
Distribution and Habitat
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D. sarayacuensis inhabits the upper Amazon Basin, in Ecuador (Shreve 1935; Duellman 1972; Duellman and Pyles 1983; Pearman 1997; Bustamante et al. 2005), Peru (Toft and Duellman 1979; Rodríguez and Duellman 1994; von May et al. 2008), Brazil (Heyer 1977; Aichinger 1987; Gascon and Pereira 1993; Galatti 1999; Bernarde et al. 2011), Colombia (Ruiz-Carranza et al. 1996; Lynch 2005), and northwestern Bolivia (de la Riva et al. 2000); this species has also been reported from Cerro Neblina in the far southern part of Amazonas state, Venezuela (McDiarmid and Paolillo 1988; Barrio-Amorós 1998). It is an arboreal species and can be found in understory vegetation in both primary and secondary rainforest, as well as at forest edges (La Marca et al. 2004). It occurs at elevations up to 1,700 m asl (Bustamante et al. 2005).
Life History, Abundance, Activity, and Special Behaviors
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This species is nocturnal and arboreal (La Marca et al. 2004). It is found on low vegetation
Life History, Abundance, Activity, and Special Behaviors
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It is most common in Peru and Ecuador (La Marca et al. 2004). It appears to be able to tolerate some habitat disturbance (La Marca et al. 2004). It is known to occur within many protected areas, some examples of which follow. Within Ecuador, its range overlaps with a number protected areas, including Parque Nacional Sumaco Napo-Galeras, Parque Nacional Yasuní, and Reserva Biológica Limoncocha (La Marca et al. 2004). Within Peru, it is found in Manu National Park (Rodriguez and Cadle 1990), as well as in protected areas (Cocha Cashu, Centro Sachavacayoc, Eco Amazonia, Explorer’s Inn, and Pakitza) in the Madre de Dios region (von May et al. 2008). In Brazil, it is found within the Reserva Extrativista Riozinho da Liberdade, Acre (Bernarde et al. 2011).
Relation to Humans
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This species may be collected for the pet trade, although it is not clear whether specimens represent D. sarayacuensis or D. triangulum; Rowley et al. (2007) noted six individuals were imported into Hong Kong from Germany but did not distinguish between these species.
Dendropsophus sarayacuensis
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Dendropsophus sarayacuensis (common name: Shreve's Sarayacu treefrog or Clown tree frog) is a species of frog in the family Hylidae.
It is found in the Amazon Basin in Bolivia, Brazil, Ecuador, Peru, Venezuela, and—presumably—Colombia.[2] Dendropsophus sarayacuensis is a common in parts of its range (Peru and Ecuador). It is nocturnal, arboreal frog inhabiting understorey vegetation in primary and secondary tropical rainforest and forest edges. Eggs are laid out of water whereas the tadpole develop in water, in temporary and permanent pools.[1]
As a pet
They are a very popular exotic pet.
References
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Dendropsophus sarayacuensis: Brief Summary
provided by wikipedia EN
Dendropsophus sarayacuensis (common name: Shreve's Sarayacu treefrog or Clown tree frog) is a species of frog in the family Hylidae.
It is found in the Amazon Basin in Bolivia, Brazil, Ecuador, Peru, Venezuela, and—presumably—Colombia. Dendropsophus sarayacuensis is a common in parts of its range (Peru and Ecuador). It is nocturnal, arboreal frog inhabiting understorey vegetation in primary and secondary tropical rainforest and forest edges. Eggs are laid out of water whereas the tadpole develop in water, in temporary and permanent pools.
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