Estudos taxonômicos das leguminosas no Parque Nacional da Restinga de Jurubatiba, Rio de Janeiro Brasil

• Ano de defesa: 2013
• Autor(a) principal: Castilhori, Marcelo Fraga
• Orientador(a): Esteves, Roberto Lourenço
• Banca de defesa: Braga, João Marcelo Alvarenga , Pereira, Jorge Fontella
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade do Estado do Rio de Janeiro
• Programa de Pós-Graduação: Programa de Pós-Graduação em Biologia Vegetal
• Departamento: Centro Biomédico::Instituto de Biologia Roberto Alcantara Gomes
• País: BR
• Palavras-chave em Português: Flórula; Fabaceae; Florística; Unidade Conservação; Mata Atlântica
• Palavras-chave em Inglês: Florula; Fabaceae; Floristics; Conservation Unit; Atlantic forest
• Área do conhecimento CNPq: CNPQ::CIENCIAS BIOLOGICAS::BOTANICA
• Link de acesso: http://www.bdtd.uerj.br/handle/1/7946

Located at 22 ° -22 ° 23'S, 41 ° 15'-41 ° 45'W in northern Rio de Janeiro state, the Restinga de Jurubatiba National Park (RJNP) has an area of 14,860 hectares in Carapebus, Macaé and Quissamã municipalities, with approximately 60km of continuous sandy beaches and a vast lagoon complex. The RJPN features an extensive landscape mosaic composed of 10 different plant communities: creeping psammophytes, coastal thicket, open Clusia scrub, open Ericaceae scrub, open Palmae scrub, sedge swamp, dune forest, swamp forest, periodically flooded forest and aquatic vegetation. To survey the Leguminosae species in the RJNP these plant formations were visited during fieldwork. .Specimens were processed according to traditional protocol and deposited in the HB, HRJ and R herbaria. In the RJNP, the family has so far 55 species distributed in 32 genera with representatives of the three subfamilies: Caesalpinioideae with 4 genera and 12 species, Mimosoideae with 6 genera and 10 species and Papilionoideae with 22 genera and 33 species. Chamaecrista and Aeschynomene were the richest genera, each with 5 species. These data on Leguminosae in RJPN represent 14% of the genera and 1.9% of the species of Leguminosae occurring in Brazil and 30% of the genera and 12% of the species found in the state of Rio de Janeiro. Species richness of Leguminosae at the RJPN was higher when compared to three other sandy coastal plain areas: Cardoso Island (SP), Praia do Sul Biological Reserve (RJ) and Marica Restinga (RJ). As regards habitat preference of the species in the RJPN, highest species richness was observed in the open Palmae scrub and the dune forest with 22% and 23% respectively of the species. The taxonomic treatment contains keys for the identification of subfamilies, genera and species, and synoptic descriptions of the species. The most important diagnostic morphological characters are number and shape of leaflets, presence and shape of extrafloral nectaries and types of fruits. For each specific or infraspecific taxon is also included information on geographic distribution in Brazil, flowering and fruiting, occurence in plant formations and comments on diagnostic features. There are also 38 illustrative plates that combine pictures of species in the field and of herbarium specimens. Data analysis on flowering and fruiting for the family as a whole did not indicate a period of greater concentration of these events.