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| Casarino,Jane Eyre; Mynssen,Claudine Massi; Messias,Maria Cristina Teixeira Braga. |
| Esse trabalho consiste no estudo taxonômico das Schizaeales no Parque Estadual do Itacolomi, localizado nos municípios de Ouro Preto e Mariana, Estado de Minas Gerais, Brasil. O Parque é constituído principalmente por campos rupestres e florestas estacionais semideciduais. A ordem Schizaeales ocorre essencialmente em ambientes tropicais e temperado meridional, sendo constituída por três famílias: Schizaeaceae, Anemiaceae e Lygodiaceae. Foram encontrados 14 táxons, distribuídos em três gêneros: Anemia (11 espécies, com reconhecimento de três variedades), Lygodium (uma espécie), Schizaea (uma espécie). Do total de táxons estudados, seis são endêmicos do Brasil. São apresentadas chaves de identificação, descrições, ilustrações e comentários. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anemiaceae; Lygodiaceae; Pteridófitas; Ouro Preto; Schizaeaceae. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042009000400012 |
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| Figueiredo,Maurilio Assis; Diniz,Adriana Pedrosa; Abreu,Adriana Trópia de; Messias,Maria Cristina Teixeira Braga; Kozovits,Alessandra Rodrigues. |
| ABSTRACT Recovery of degraded areas of rupestrian grasslands is hampered mainly by the limited knowledge regarding substrate management and the biology of native species suitable for revegetation of these areas. The aim of our study was to examine the establishment and growth of Periandra mediterranea in different textures of lateritic substrate from a mining-degraded area. The growth of P. mediterranea was evaluated using fine and coarse laterite, both with and without the addition of topsoil. Survival, dry biomass, content of chemical elements and nodulation were evaluated in ten individuals per treatment sixteen months after planting. Although the substrate has low nutrient content, yet high metal concentrations, all plants survived. Plants growing on... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bauxite; Canga; Leguminosae; Recovery of degraded areas; Rock outcrops; Topsoil. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000200232 |
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| Oliveira,Paula Alves; Pereira,Israel Marinho; Messias,Maria Cristina Teixeira Braga; Oliveira,Marcio Leles Romarco de; Pinheiro,André César; Machado,Evandro Luiz Mendonça; Oliveira,Junior Lacerda Alves de. |
| ABSTRACT Rupestrian complexes of the Serra do Espinhaço are recognized for their high degree of biodiversity and endemism. However, environmental impacts, particularly from mining, have degraded these environments. The purpose of this study was to describe the herbaceous-subshrub communities that occur in quartzitic (QRC) and ferruginous (FRC) rupestrian complexes in different seasons of the year, with regard to floristic similarity and phytosociological structure. Additionally, the study aimed to identify native species with potential use for the restoration of similar degraded areas. Vegetation was sampled from plots located in the municipality of Conceição do Mato Dentro, state of Minas Gerais. Five contiguous strata of 10 × 50 m were demarcated in each... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Canga; Cerrado; Ferruginous grasslands; Restoration of degraded areas; Rupestrian grasslands. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000100141 |
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| Messias,Maria Cristina Teixeira Braga; Leite,Mariangela Garcia Praça; Meira-Neto,João Augusto Alves; Kozovits,Alessandra Rodrigues. |
| Vascular species and their respective life-forms and coverage were recorded in a Brazilian quartzite and itabirite rocky outcrop site at Serra de Ouro Preto, producing the floristic, frequency and vegetational spectra. Three habitats in both lithologies were defined by geomorphology as: 1) Sloped areas near the mountain summit, with grasslands; 2) Plateaus in the middle of the slope, with grasslands; and 3) Lower and/or concave parts of the slopes, with woody savannas. The life-forms followed Raunkiaer's System. We aimed to answer the following questions: Do quartzite and itabirite rocky outcrops have different biological spectra? Are the biological spectra different in the geomorphologic habitats? Do the floristic, vegetational and frequency spectra... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biological spectrum; Ferruginous rocky outcrops; Quadrilátero Ferrífero; Raunkiaer. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032011000200026 |
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