Diet of Physalaemus biligonigerus (Cope, 1861, «1860») and Eleutherodactylus platydactylus (Boulenger, 1903) (Anura: Leiuperidae, Brachycephalidae) from Bolivia and Paraguay

Dennis Rödder


I studied the stomach contents of 58 Physalaemus biligonigerus and 57 Eleutherodactylus platydactylus based on specimens housed in the Zoologisches Forschungsmuseum Alexander Koenig, Bonn, Germany. The diet of E. platydactylus was dominated by arthropods, with Coleopterans (20%) followed by Hymenoptera (30.9%) being the most frequently consumed food items. The diet of P. biligonigerus consists of a variety of arthropods with Isopterans being the main part. Looking at the frequency of occurrence, Isopterans (29.4%) and Coleopterans (14.7%) are the food items found most often. According to the number of prey items found, the diet of P. biligonigerus is dominated by Isopterans (83.5%), other arthropods were found in very small percentages (from 4.4 to 0.3%). Diet analyses revealed that P. biligonigerus has a narrow trophic niche breath preferring colonial terrestrial arthropods like Isoptera whereas E. platydactylus has a wide trophic niche breath preying on a great diversity of arthropods. Cluster analyses allow the hypotheses that trophic ontogeny in both species occur.


Physalaemus biligonigerus; Eleutherodactylus platydactylus; diet; Bolivia; Paraguay

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Anderson A. M., Haukos D. A., and Anderson J. T. (1999), «Diet composition of three anurans from the Playa wetlands of northwest Texas», Copeia, 1999, 515 – 520.

Attademo A. M., Peltzer P. M., and Lajmanovich R. C. (2007), «Feeding habits of Physalaemus biligonigerus (Anura, Leptodactylidae) from soybean fields of Córdoba province, Argentina», Russ. J. Herpetol., 14, 1 – 6.

Collins J. P. and Storfer A. (2003), «Global amphibian decline: sorting the hypotheses», Divers. Distrib., 9, 89 – 98.

Duellman W. E. (1978), «The biology of an equatorial herpetofauna in Amazonian Ecuador», Misc. Publ. Mus. Nat. Hist. Univ. Kansas, 65, 1 – 352.

Duellman W. E. and Trueb L. (1994), Biology of Amphibians, John Hopkins Univ. Press, Baltimore – London.

Dunham A. E. (1983), «Realized niche overlap, resource abundance and intensity of interspecific competition», in: Huey R. D., Pianka E. R., and Schoener T. W. (eds.), Lizard Ecology, Harvard University, London, pp. 261 – 280.

Emerson S. B. (1985), «Skull shape in frogs — correlations with diet», Herpetologica, 41, 177 – 188.

Frost D. R. (2006), Amphibian Species of the World: an On-Line Reference. Version 3.0, Database available at, Download October 6th 2006.

Freed A. N. (1982), «A treefrog’s menu: selection for an evening’s meal», Oecologia, 53, 20 – 26.

Huey R. B. and Pianka E. R. (1981), «Ecological consequences of foraging mode», Ecology, 62, 991 – 999.

Köhler J., Dirksen L., Ibisch P. L., Rauer G., Rudolph D., and Böhme W. (1995), «Zur Herpetofauna des Sehuencas-Bergregenwaldes im Carrasco-Nationalpark, Bolivien», Herpetofauna, 17, 12 – 25.

Lozán J. L. and Kausch H. (2004), Angewandte Statistik für Naturwissenschaftler, Wissenschaftliche Auswertungen, Hamburg.

Maneyro R., Naya D. E., da Rosa I., and Camargo A. (2004), «Diet of the South American frog Leptodactylus ocellatus (Anura, Leptodactylidae) in Uruguay», Inheringa Sér. Zool., 94, 57 – 61.

Martino A. L. (1999), Analisis Estructural de Una Comunidad de Anfibios (Barreto, Cordoba, Argentina). Ph.D. Thesis, Departamento de Ciencias Naturales, Rio Cuarto, Universidad Nacional de Rio Cuarto.

Marra R. V., Van Sluys M., and Rocha C. F. D. (2004), «Food habits of Eleutherodactylus prvus (Anura: Leptodactylidae) at an Atlantic rainforest area, Southeastern Brazil», Herpetol. Rev., 35, 135 – 137.

Mühlenberg M. (1993), Freilandökologie, Quelle Meyer, Heidelberg – Wiesbaden.

Müller H. J. (1985), Bestimmung wirbelloser Tiere im Gelände, Gustav Fischer Verlag, Stuttgart.

Rodríguez L. O. and Duellman W. E. (1994), «Guide to the frogs of the Iquitos Region, amazonian Peru», Nat. Hist. Mus. Spec. Publ. Univ. Kansas, 22, 1 – 80.

da Rosa I., Canavero A., Maneyro R., Naya D. E., and Camargo A. (2002), «Diet of four sympatric anuran species in a temperate environment», Bol. Soc. Zool. Uruguay, 13, 12 – 20.

Santos E. M., Almeida A. V., and Vasconcelos S. D. (2004), «Feeding habits of six anuran (Amphibia: Anura) species in a rainforest fragment in Northeastern Brazil», Inheringa Sér. Zool., 94, 433 – 438.

Stuart S., Chanson J. S., Cox N. A., Young B. E., Rodrigues A. S. L., Fischman D. L., and Waller R. W. (2004), «Status and trends of amphibian declines and extinctions worldwide», Science, 306, 1783 – 1786.

Teixeira R. L. and Vrcibradic D. (2003), «Diet of Leptodactylus ocellatus (Anura; Leptodactylidae) from coastal lagoons of southeastern Brazil», Cuad. Herpetol., 17, 113 – 120.

Toft C. A. (1980), «Feeding ecology of thirteen syntopic species of anurans in a seasonal tropical environment», Oecologia, 45, 131 – 141.

Toft C. A. (1981), «Feeding ecology of Panamanian litter anurans: patterns in diet and foraging mode», J. Herpetol., 15, 139 – 144.

Toft C. A. (1985), «Resource partitioning in Amphibians and Reptiles», Copeia, 1985, 1 – 21.

Zar J. H. (1999), Biostatistical Analysis, Prentice-Hall, Englewood Cliffs, NJ.



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