Floristic Similarity
Mostrando 25-36 de 102 artigos, teses e dissertações.
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25. Floristic and phytogeographic pattern of native field in southeastern Brazil
The waterlogging of soils creates selective environments for plant species. The frequency and duration of flooding influence the responses to ecological processes, determining the structure and floristic composition of vegetation formations. We investigated the relationship between floristic composition and environmental heterogeneity of native field, one ph
Acta Bot. Bras.. Publicado em: 2014-09
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26. Floristic composition and structure of an upper montane cloud forest in the Serra da Mantiqueira Mountain Range of Brazil
We analyzed the community structure of an upper montane cloud forest (elevation, 1900 m) in the Serra da Mantiqueira Mountain Range, in the state of Minas Gerais, Brazil. Our objective was to determine the comparative tree species richness and floristic diversity within this forest, which is at one of the higher elevations in the range, in relation to surrou
Acta Bot. Bras.. Publicado em: 2014-09
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27. Myrtaceae throughout the Espinhaço Mountain Range of centraleastern Brazil: floristic relationships and geoclimatic controls
Although biological surveys and taxonomic revisions provide key information to ecological and evolutionary studies, there is a clear lack of floristic and phytogeographic studies of the mountainous regions of Brazil, which harbor some of the most threatened plant ecosystems on the planet. Myrtaceae has been reported to be one of the most important families i
Acta Bot. Bras.. Publicado em: 2014-03
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28. Structure and phytogeographic relationships of swamp forests of Southeast Brazil
Swamp forests are associated with soils that are saturated or inundated because of a high water table. In Brazil, little is known about the plant ecology of such forests. In this paper, we aimed to describe the phytosociological structure of the tree layer of swamp forests in Restinga de Jurubatiba National Park, in the northern part of the state of Rio de J
Acta Bot. Bras.. Publicado em: 2013-12
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29. Bryophytes on rocky outcrops in the caatinga biome: a conservationist perspective
In the state of Paraíba, Brazil, there is an abundance of rocky outcrops, which are typical elements of the semi-arid landscape. Those outcrops provide refuge to species with morphological adaptations to stressful climates and to rare communities of plants, including bryophytes. Nevertheless, there have been no studies of bryophytes in such habitats in the
Acta Bot. Bras.. Publicado em: 2013-12
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30. Diversity and distribution of the bryophyte flora in montane forests in the Chapada Diamantina region of Brazil
Bryophytes constitute an important component of tropical rain forests, which provide microhabitats favorable for their establishment. Bryophytes are also quite responsive to changes in microclimate, which makes them good bioindicators. This study aimed to determine the diversity and distribution of bryophytes in upper and lower montane forests of the Chapada
Acta Bot. Bras.. Publicado em: 2013-09
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31. Phytoplankton diversity in the middle Rio Doce lake system of southeastern Brazil
This study presents results of the inventory of algal flora conducted between August 2007 and May 2008 in 18 lakes of the middle Rio Doce lake system, most of which is in the state of Minas Gerais, Brazil. We recorded 481 taxa, increasing the known total phytoplankton diversity of the region (gamma diversity) by 80%. The following classes were represented: Z
Acta Bot. Bras.. Publicado em: 2013-06
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32. Structure and floristic pattern of a coastal dunes in southeastern Brazil
The Brazilian shrublands area (restinga) is composed of marine coast vegetation on Quaternary sandy plains, where the species composition can vary depending on the surrounding ecosystems. The aims of this study were to describe the structure and floristic composition of a restinga near the community of Itaúnas, in the northern part of the state of Espírito
Acta Bot. Bras.. Publicado em: 2013-03
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33. Floristic and phytosociological analysis of palm swamps in the central part of the Brazilian savanna
We analyzed the floristics and phytosociology of three palm swamps in the municipality of Bela Vista de Goiás, located in the state of Goiás, Brazil, in the central part of the Brazilian savanna (Cerrado). The floristic surveys were conducted monthly from May 2008 to April 2009, and 310 species were recorded (seven bryophytes, 15 ferns and 288 angiosperms)
Acta Bot. Bras.. Publicado em: 2013-03
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34. ANÁLISE DA VEGETAÇÃO EM UM FRAGMENTO DE CAATINGA NO MUNICÍPIO DE PORTO DA FOLHA, SERGIPE, BRASIL. / ANALYSIS OF VEGETATION IN A SHRED OF THE MUNICIPALITY OF PORT CAATINGA LEAF, SERGIPE, BRAZIL.
O presente trabalho foi realizado em um fragmento de Caatinga com aproximadamente 50 ha, pertencente à fazenda São Pedro, localizada no município de Porto da Folha, Sergipe, objetivando conhecer a composição florística e a estrutura fitossociológica do componente herbáceo e arbustivo-arbóreo, verificar as relações fitofisionômicas do estrato arbu
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/06/2012
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35. Traços funcionais como preditores da similaridade funcional entre sub-bosques de florestas estacionais semideciduais: subsídios para a conservação destes ecossistemas
CAPÍTULO 1: As variáveis ambientais do sub-bosque condicionam o desenvolvimento de uma flora e, consequentemente, de uma estrutura funcional muito específica para este estrato. Este estudo avaliou a diversidade florística e a fenologia foliar e síndrome de dispersão das espécies arbóreas em nove sub-bosques de florestas estacionais semideciduais sob
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/02/2012
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36. Gradientes edáficos e sua relação com as fitofisionomias do semi-árido meridional brasileiro / Edaphic gradients and their relationship with the vegetation types of semi-arid southern Brazil
The semi-arid region in Brazil represents a significant territorial extension, where the climate is markedly seasonal, with low rainfall, high evapotranspiration and higher temperatures. Its southern portion comprises the northern boundary between the states of Minas Gerais and Bahia. This region is dominated by dry forest vegetation type, however, different
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/02/2012