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Redalyc.Frogs of Marambaia: a Naturally Isolated Restinga And Biota Neotropica ISSN: 1676-0611 [email protected] Instituto Virtual da Biodiversidade Brasil Silva, Hélio Ricardo da; Gomes de Carvalho, André Luiz; Bueno Bittencourt-Silva, Gabriela Frogs of Marambaia: a naturally isolated Restinga and Atlantic Forest remnant of southeastern Brazil Biota Neotropica, vol. 8, núm. 4, octubre-diciembre, 2008, pp. 167-174 Instituto Virtual da Biodiversidade Campinas, Brasil Available in: http://www.redalyc.org/articulo.oa?id=199114294016 How to cite Complete issue Scientific Information System More information about this article Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Journal's homepage in redalyc.org Non-profit academic project, developed under the open access initiative Biota Neotrop., vol. 8, no. 4, Out./Dez. 2008 Frogs of Marambaia: a naturally isolated Restinga and Atlantic Forest remnant of southeastern Brazil Hélio Ricardo da Silva1,2, André Luiz Gomes de Carvalho1 & Gabriela Bueno Bittencourt-Silva1 1Laboratório de Herpetologia, Departamento de Biologia Animal, Instituto de Biologia, Universidade Federal Rural do Rio de Janeiro – UFRRJ, BR 465, Km 47, CP 74524, CEP 23851-970, Seropédica, RJ, Brazil, e-mail: [email protected], [email protected] 2Corresponding author: Hélio Ricardo da Silva, e-mail: [email protected] SILVA, H.R., CARVALHO, A.L.G. & BITTENCOURT-SILVA, G.B. 2008. Frogs of Marambaia: a naturally isolated Restinga and Atlantic Forest remnant of southeastern Brazil. Biota Neotrop. 8(4): http://www. biotaneotropica.org.br/v8n4/en/abstract?inventory+bn01808042008. Abstract: We report the results of a seven-year survey of the anurans of Marambaia, in the State of Rio de Janeiro, southeastern Brazil, where 24 species were recorded. The species represented nine families: Hylidae (10 species), Bufonidae (3), Leptodactylidae (3), Hylodidae (2), Microhylidae (2), Craugastoridae (1), Centrolenidae (1), Cycloramphidae (1), and Leiuperidae (1). We also present notes on the natural history and habitat usage by the anurans. Keywords: anura, insular community, species list. SILVA, H.R., CARVALHO, A.L.G. & BITTENCOURT-SILVA, G.B. 2008. Anfíbios da Marambaia: um remanescente naturalmente isolado de Restinga e Floresta Atlântica do Sudeste do Brasil. Biota Neotrop. 8(4): http://www.biotaneotropica.org.br/v8n4/pt/abstract?inventory+bn01808042008. Resumo: Apresentamos os resultados de um estudo de sete anos sobre os anuros da Marambaia, Estado do Rio de Janeiro, sudeste do Brasil, onde 24 espécies representantes de nove famílias foram registradas: Hylidae (10 espécies), Bufonidae (3), Leptodactylidae (3), Hylodidae (2), Microhylidae (2), Craugastoridae (1), Centronelidae (1), Cycloramphidae (1) e Leiuperidae (1). Apresentamos também notas sobre a história natural e uso de habitat pelos anuros. Palavras-chave: anura, comunidade insular, lista de espécies. http://www.biotaneotropica.org.br/v8n4/en/abstract?inventory+bn01808042008 http://www.biotaneotropica.org.br 168 Biota Neotrop., vol. 8, no. 4, Out./Dez. 2008 Silva, H.R. et al. Introduction One peculiar characteristic of the geography of the State of Rio de Janeiro is the Restinga da Marambaia, which forms an east-west 21° peninsular-like extension of the continent into the Atlantic Ocean (Figure 1). The Marambaia formation is composed of an island that approaches the continent through a sand dune extension, the actual Brazil restinga. The geological events that resulted in the formation of the restinga involved changes in relative sea level that took place in the Holocene, about five thousand years before the present (Roncarati & 22° Menezes 2005). Like most coastal areas in the State of Rio de Janeiro, Marambaia N has a long history of human occupation (Kneip & Oliveira 2005). WE Recent human uses have left marks of environmental degradation similar to those observed along the mainland coast of the state, which S 23° can be noticed by different degrees of logging – from clear cutting Atlantic Ocean for agriculture, to selective timber removal. During the 18th and 19th 0 100 km 44° 43° 42° centuries, Marambaia served as a stopping place for ships involved N in the slave trade from Africa (Pereira et al. 1990). More recently, E the Brazilian government has been using the area for military bases W S and training (Army, Air Force, and Navy). Through a cooperation 23° 02' 24.8" S and program among different research centers, universities, and the mili- 43° 57' 12.4" W tary, efforts to understand some basic aspects of the local biodiversity 12 has been possible on Marambaia. As an outcome of such efforts, a 7 23° 03' 24.8" S and 13 book edited by Menezes et al. (2005) presents the first comprehen- 43° 59' 31.3" W 11 8 10 sive results of research on the aspects of the biodiversity and some 6 9 physical characterization of the area. On Marambaia the flora has 5 14 4 been more thoroughly investigated than the fauna (Menezes & Araujo 15 2005, Fraga et al. 2005, Conde et al. 2005), which has been limited 3 16 to studies of the communities of bats (Costa & Perachii 2005) and 2 23° 05' 38.3" S and dragonflies (Costa & Oldrini 2005). 1 43° 58' 12.9" W 0 2 km The first specimens of amphibians collected from Marambaia were deposited in the Coleção Eugenio Izecksohn (EI), housed at the Universidade Federal Rural do Rio de Janeiro (Izeckshon 1976), Figure 1. Map of the State of Rio de Janeiro, showing the location of however a more thorough herpetological survey has not been con- Marambaia, which is enlarged and shown in more details. Numbers in the ducted there until our recent efforts at describing the lizard com- map of Marambaia represent collecting sites; a list of the species observed munity of the area (Carvalho et al. 2007, Carvalho & Araújo 2007). and or collected in each site is as follows: Rhinella ornata 5, 8 and 12, 13, 14; The list of anurans presented herein summarizes the continuation of Rhinella pygmaea 14, Dendrophryniscus brevipollicatus 12 and 13; Haddadus our efforts to investigate the herpetological communities on coastal binotatus 8 and 10, Hyalinobatrachium eurygnathum 8; Thoropa miliaris 2, 3, islands of southeastern Brazil, and reports our contribution toward 8 and 10; Aparasphenodon brunoi 4, 8, 12, 13; Aplastodiscus albofrenatus 2, their conservation. 8; Hypsiboas albomarginatus 4, 5, 6, 7, 11 and 12, Dendropsophus decipiens 5, Dendropsophus cf. oliveirai 5; Scinax cf. alter 3, 4, 5, 7, 8, 12, 13; Scinax Materials and Methods cf. perpusillus 2, 12, 13; Scinax trapicheiroi 8, Scinax cf. x-signatus 5, 7, 12, 13, Xenohyla truncata 16; Hylodes cf. phyllodes 1, 9, 11; Crossodactylus gaudichaudii 1, 9, 11, Physalaemus signifer 8, 10, 11; Leptodactylus 1. Study site marmoratus 8 , 10, 11; Leptodactylus marambaiae 2, 3, 5, 6, 11, 12, 13, 14, The present work was conducted on Marambaia, Municipality Leptodactylus ocellatus 5, 6, 7, 8, 10, 11,12, 13, 14; Chiasmocleis cf. carvalhoi of Mangaratiba, in the west portion of the State of Rio de Janeiro, 8, 10, 11; Myersiella microps 8. southeastern Brazil (between 23° 04’ S, 44° 00’ W and 23° 02’ S, Figura 1. Mapa do Estado do Rio de Janeiro mostrando a localização da 44° 34’ W). The region encloses the Sepetiba Bay, and is comprised Marambaia, que esta destacada em tamanho maior e mostra mais detalhes. of an island, known as Ilha da Marambaia, linked to the continent Os números no mapa da Marambaia representam os sítios de coleta; a lista through a sand dune formation approximately 40 km long called das espécies observadas para cada sítio é a seguinte: Rhinella ornata 5, 8 Restinga da Marambaia (Figure 1). Marambaia is an assemblage and 12, 13, 14; Rhinella pygmaea 14, Dendrophryniscus brevipollicatus of different habitats that support a marked gradient of vegetational 12 and 13; Haddadus binotatus 8 and 10, Hyalinobatrachium eurygnathum 8; Thoropa miliaris 2, 3, 8 and 10; Aparasphenodon brunoi 4, 8, 12, 13; cover from the costal lowlands to higher altitudes - 640 m (Conde Aplastodiscus albofrenatus 2, 8; Hypsiboas albomarginatus 4, 5, 6, 7, 11 and et al. 2005, Menezes & Araujo 2005). There are at least three distinct 12, Dendropsophus decipiens 5, Dendropsophus cf. oliveirai 5; Scinax cf. alter macro-habitat: mangrove, restinga (sand dune shrub and forested 3, 4, 5, 7, 8, 12, 13; Scinax cf. perpusillus 2, 12, 13; Scinax trapicheiroi 8, areas), and Atlantic Forest (Conde et al. 2005). The macroclimate of Scinax cf. x-signatus 5, 7, 12, 13, Xenohyla truncata 16; Hylodes cf. phyllodes the region is classified as tropical by Köppen’s method, with rainy 1, 9, 11; Crossodactylus gaudichaudii 1, 9, 11, Physalaemus signifer 8, 10, summers and dry winters (AW). In the coldest months (July-August) 11; Leptodactylus marmoratus 8 , 10, 11; Leptodactylus marambaiae 2, 3, mean temperature is higher than 18 °C and of the hottest (January) is 5, 6, 11, 12, 13, 14, Leptodactylus ocellatus 5, 6, 7, 8, 10, 11,12, 13, 14; higher than 22 °C. Rain fall is abundant in the summer and scarce in Chiasmocleis cf. carvalhoi 8, 10, 11; Myersiella microps 8. http://www.biotaneotropica.org.br http://www.biotaneotropica.org.br/v8n4/en/abstract?inventory+bn01808042008 Biota Neotrop., vol. 8, no. 4, Out./Dez. 2008 169 Frogs of Marambaia the winter (no dry months). The annual mean precipitation is higher effort. Additional records may be possible, however the effort to be than 1200 mm (Mattos 2005). applied must be tremenduous and has to take into account the dimen- sions of the area to be surveyed (Figure 1). Hylidae is the richest fam- 2. Data collection ily, with 10 species, followed by Bufonidae (3), Leptodactylidae (3), Anurans were collected or observed from April 2002 to April Hylodidae (2), Microhylidae (2), Craugastoridae (1), Centrolenidae 2008, both in the rainy (summer) and dry (winter) seasons, with (1), Cycloramphidae (1), and Leiuperidae (1). These species are 86 days of field work.
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