Florística dos componentes arbóreo e arbustivo de um trecho da Floresta Estacional Semidecídua Montana, município de Pedreira, estado de São Paulo

Abstract

-(Floristic analysis of trees and shrubs in a fragment of Semideciduous Montane Forest, municipality of Pedreira, São Paulo State, southeastern Brazil). The aims of this study were to know the species of trees and shrubs in a fragment of Semideciduous Montane Forest and investigate the floristic difference between Montane and Submontane forests in São Paulo State. To survey tree and shrub species, weekly collectings were done during 15 months in the Fazenda Bela Vista (46º52' W and 22º47' S, 750-850 m). A total of 151 species of 106 genera and 47 angiosperm families was collected. Leguminosae, Myrtaceae, Lauraceae, Rubiaceae, Meliaceae, Piperaceae, Solanaceae, Ocotea, Piper, Machaerium, Miconia, Eugenia and Solanum were the richest taxa. Samples performed by other authors of the Montane and Submontane formations of the Seasonal Semideciduous Forest were compared. Leguminosae, Euphorbiaceae, Myrtaceae, Rubiaceae, Lauraceae, Machaerium, Eugenia, Solanum and Croton had higher relative constancy and richness of tree and shrub species in both formations. The G test indicated that Solanaceae, Asteraceae, Melastomataceae, Aspidosperma, Trichilia and Casearia had significantly higher species richness and relative constancy in the Montane formation. On the other hand, Meliaceae, Rutaceae, Moraceae, Ocotea, Miconia, Myrcia and Ficus had significantly higher richness and constancy in the Submontane formation. Therefore, each formation has distinct floristic composition at the species as well as at genera and family levels.

Structure and floristic similarities of upper montane forests in Serra Fina mountain range, southeastern Brazil

“…This is a very similar pattern with other tropical montane cloud forests (Madsen & Ollgaard 1994;Kelly et al 1994;Hamilton et al 1995). Fabaceae, one the most species rich families, mainly occurs in the seasonal and ombrophilous forests at lower altitudes, showed the lowest phytosociologic importance in AUMF (Yamamoto et al 2005;Meireles et al 2008;Punyasena et al 2008).…”

“…Myrtaceae, the most species rich family in the Atlantic Rain Forest, is also one the most species rich in AUMF, with a high relatively density Yamamoto et al 2005;Meireles et al 2008). The family Lauraceae, was absent from the PCAM forest sites, but some species from this family have been recorded in AUMF at intermediate altitudes.…”

Composição florística da Reserva Municipal de Santa Genebra, Campinas, SP

“…), Lauraceae e Salicaceae (quatro spp.). Tais famílias agrupadas totalizaram 105 espécies, correspondendo a 75% das espécies arbustivo-arbóreas, e estão entre as que apresentaram um número maior de espécies em remanescentes na região de Campinas (Bernacci & Leitão Filho 1996, Santos & Kinoshita 2003, Yamamoto et al 2005) e florestas mesófilas semideciduais baixo montanas (Oliveira-Filho & Fontes 2000). A presença das famílias Malvaceae e Salicaceae, não mencionadas nos trabalhos acima citados, se deve ao sistema de classificação adotado neste trabalho (APG II).…”

Estrutura do componente arbóreo em Floresta Ombrófila Densa Montana no Parque Natural Municipal Nascentes de Paranapiacaba (PNMNP), Santo André, SP, Brasil

“…Situação semelhante é descrita por Leitão Filho (1993) e Pompéia (1997) na área do vale do rio Pilões, que mencionam ser essa uma condição esperada para áreas em recuperação. Nas florestas tropicais de climas úmidos ou com pequena estacionalidade pluvial, a zoocoria é mais freqüente (Howe & Smallwood 1982, van der Pijl 1982, enquanto a anemocoria predomina em ambientes mais abertos, secos e na borda de fragmentos (Howe & Smallwood 1982, Yamamoto et al 2005.…”