| Full text | |
| Author(s): |
Giselda Durigan
[1]
;
Luís Carlos Bernacci
[2]
;
Geraldo Antonio Daher Correa Franco
[3]
;
Géza de Faria Arbocz
[4]
;
Jean Paul Metzger
[5]
;
Eduardo Luís Martins Catharino
[6]
Total Authors: 6
|
| Affiliation: | [1] Floresta Estadual de Assis - Brasil
[2] Instituto Agronômico de Campinas - Brasil
[3] Instituto Florestal. Divisão de Dasonomia - Brasil
[4] IBAMA - Brasil
[5] Universidade de São Paulo. Instituto de Biociências - Brasil
[6] Instituto de Botânica - Brasil
Total Affiliations: 6
|
| Document type: | Journal article |
| Source: | Acta Botanica Brasilica; v. 22, n. 1, p. 51-62, 2008-03-00. |
| Abstract | |
Analysis of floristic similarity relationships between plant communities can detect patterns of species occurrence and also explain conditioning factors. Searching for such patterns, floristic similarity relationships among Atlantic Forest sites situated at Ibiúna Plateau, São Paulo state, Brazil, were analyzed by multivariate techniques. Twenty one forest fragments and six sites within a continuous Forest Reserve were included in the analyses. Floristic composition and structure of the tree community (minimum dbh 5 cm) were assessed using the point centered quarter method. Two methods were used for multivariate analysis: Detrended Correspondence Analysis (DCA) and Two-Way Indicator Species Analysis (TWINSPAN). Similarity relationships among the study areas were based on the successional stage of the community and also on spatial proximity. The more similar the successional stage of the communities, the higher the floristic similarity between them, especially if the communities are geographically close. A floristic gradient from north to south was observed, suggesting a transition between biomes, since northern indicator species are mostly heliophytes, occurring also in cerrado vegetation and seasonal semideciduous forest, while southern indicator species are mostly typical ombrophilous and climax species from typical dense evergreen Atlantic Forest. (AU) | |
| FAPESP's process: | 99/05123-4 - Biodiversity conservation in fragmented landscapes at the Atlantic Plateau of São Paulo (Brazil) |
| Grantee: | Jean Paul Walter Metzger |
| Support Opportunities: | BIOTA-FAPESP Program - Thematic Grants |