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Structure and floristic diversity of remnant semideciduous forest under varying levels of disturbance Acta Botanica
Gris,Darlene; Temponi,Lívia Godinho; Damasceno Junior,Geraldo Alves.
The perturbation of Neotropical forests generates large disturbances in biological communities. The species that suffer least from the resulting habitat fragmentation are the pioneers, because they possess greater ability to inhabit disturbed environments. Therefore, it is expected that species diversity will be greater in areas subjected to intermediate disturbance, such as the opening of gaps, because a large number of pioneer species will develop and coexist with species of more advanced successional stages. This study aimed to compare two forest remnants that differed in size and disturbance intensity, in order to determine the effects of disturbances on species diversity and the size ratios of individual trees. This was accomplished with comparative...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Intermediate disturbance; Species richness; Neotropical forest; Tree communities.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062014000400011
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Analysis of floristic composition and structure as an aid to monitoring protected areas of dense rain forest in southeastern Brazil Acta Botanica
Cardoso-Leite,Eliana; Podadera,Diego Sotto; Peres,Juliana Cristina; Castello,Ana Carolina Devides.
To study forest composition and structure, as well as to facilitate management plans and monitoring programs, we conducted a phytosociological survey in the PE Caverna do Diabo State Park and the Quilombos do Médio Ribeira Environmentally Protected Area, both located within the state of São Paulo, Brazil. We analyzed 20 plots of 400 m² each, including only individuals with a circumference at breast height > 15 cm. We employed cluster analysis and ordination (principal component analysis and correspondence analysis), including species data and abiotic data. We evaluated 1051 individuals, belonging to 155 species in 48 families. Of those 155, 18 were threatened species, 33 were endemic species, and 92 (59.4%) were secondary species. The overall Shannon...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biodiversity; Intermediate disturbance; Atlantic Forest; Forest monitoring.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062013000100018
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