Predation On Leptodactylus Marmoratus (anura: Leptodactylidae) By The Spider Ctenus Medius (araneae: Ctenidae) In The Atlantic Forest, Southeast Brazil

We report herein a case of predation by the ctenid spider Ctenus medius on a leptodactylid frog Leptodactylus marmoratus, observed in a remnant of the Atlantic Forest, municipality of São Vicente, São Paulo state, southeast Brazil. This is the first record of predation by C. medius upon L. marmoratus. Nevertheless, due to the high abundance of both groups, we suggest that the interaction between spiders and amphibians could be very common on the floor of the Atlantic Forest.2199100Centeno, F.C., (2009) Diversidade E Uso De Ambiente Pelos An- Fíbios E Répteis De São Sebastião, Ilhabela, Sp, , Unpublished Master thesis. Universidade de São Paulo, BrazilCorey, D.T., Comments on a wolf spider feeding on a green anole lizard (1988) J. Arachnol, 16, pp. 391-392Dietl, J., Engels, W., Solé, M., Diet and feeding behaviour of the leaf-litter frog Ischnocnema henselii (Anura: Brachycephalidae) in Araucaria rain forests on the Serra Geral of Rio Grande do Sul, Brazil (2009) J. Nat Hist, 43 (23-24), pp. 1473-1483Duellman, W.E., Tueb, L., (1986) Biology of Amphibians, , New York, McGraw-HillGasnier, T.R.J., (1996) Ecologia Comparada De Quatro Espécies De Aranhas Errantes Do Gênero Ctenus (walckenaer) (araneae, Ctenidae) Em Uma Floresta Na Amazônia Central: Bases Para Um Modelo Integrado De Coexistência, , Unpublished Doctoral thesis. Instituto Nacional de Pesquisas da AmazôniaMcCormick, S., Polis, G.A., Arthropods that prey on vertebrates (1982) Biol. Rev, 57, pp. 29-58Menin, M., Rodrigues, D.J., Azevedo, C.S., Predation on amphibians by spiders (Arachnida, Araneae) in the Neotropical region (2005) Phyllomedusa, 4 (1), pp. 39-47Pombal-Junior, J.P., Notas sobre predação em uma taxocenose de anuros no sudeste do Brasil (2007) Rev. Bras. Zool, 24 (3), pp. 841-843Rubbo, M.J., Townsend Jr, V.R., Smyers, S.D., Jaeger, R.G., The potential for invertebrate - vertebrate intraguild predation: The predatory relationship between wolf spiders (Gladicosa pulchra) and ground skinks (Scincella lateralis) (2001) Can. J. Zool, 79, pp. 1465-1471Kovács, S.I., Covaciu-Marcov, S., Strugariu, A., Ramona, C., Ferenti, S., Food habits of a Pool frog Pelophylax lessonae - Edible frog Pelophylax kl. esculentus populationfrom North-Western Romania (2007) Biota, 8, pp. 71-78Sawaya, R.J., (1999) Diversidade, Densidade E Distribuição Altitudinal Da Anurofauna De Serapilheira Da Ilha De São Sebastião, Sp, , Unpublished Master thesis, Universidade de São Paulo, BrazilToledo, L.F., Predation of juvenile and adult anurans by invertebrates: Current knowledge and perspectives (2005) Herpetol. Rev, 36 (4), pp. 395-40