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Registros recuperados: 4
Primeira ... 1 ... Última
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Aspectos fenológicos de seis espécies vegetais em matas de galeria do Distrito Federal PAB
Antunes,Neiva Beatriz; Ribeiro,José Felipe.
A fenologia de Vochysia piramidalis, Tapirira guianensis, Talauma ovata, Tococa formicaria, Miconia pseudonervosa e Miconia chamissois foi acompanhada de abril de 1994 a setembro de 1995, em dez indivíduos de cada espécie. Todas foram perenifólias, sugerindo relação com a presença de água no solo. Vochysia piramidalis e T. guianensis apresentaram padrão de floração atrasada em relação ao início das chuvas; T. ovata, T. formicaria e M. pseudonervosa, floração precoce; e M. chamissois, floração tardia. Quanto à duração da floração, M. pseudonervosa e T. formicaria apresentaram período longo e V. piramidalis, T. ovata, T. guianensis e M. chamissois, período curto. Vochysia piramidalis revelou padrão de dispersão anemocórico, com curto período de formação e...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Mata ciliar; Fenologia reprodutiva; Fenologia vegetativa.
Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X1999000900001
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Evolution of seed dispersal in the Cerrado biome: ecological and phylogenetic considerations Acta Botanica
Kuhlmann,Marcelo; Ribeiro,José Felipe.
ABSTRACT The investigation of the phylogeny of a group of organisms has the potential to identify ecological and evolutionary processes that have been occurring within a community. Seed dispersal is a key process in the life cycle of vegetation and reflects different reproductive strategies of plants to a set of ecological and evolutionary factors. Knowing the dispersal syndromes and fruits types of a plant community may help elucidate plant-animal interactions and colonization strategies of plants. We investigated dispersal syndromes and fruit types in Cerrado formations as a parameter for understanding the evolution of angiosperm reproductive strategies in this mega-diverse tropical biome. To do this we identified and mapped the distribution of different...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Dispersal strategies; Forest; Fruit types; Grassland; Life forms; Phylogeny; Savanna.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062016000200271
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Fruits and frugivores of the Brazilian Cerrado: ecological and phylogenetic considerations Acta Botanica
Kuhlmann,Marcelo; Ribeiro,José Felipe.
ABSTRACT Knowing the morphological and phylogenetic patterns of fruits of a plant community may elucidate plant-frugivore interactions, and analysis of dispersal syndromes is a practical approach to understanding these mutualisms. We investigated different zoochorous fruits and frugivorous animals among Cerrado formations (forest, savanna and grassland), mapped dispersal syndromes on a Cerrado angiosperm phylogeny and tested for phylogenetic signal. For a core region in Cerrado, we found that, among almost a thousand fruit species and 258 fruit-eating vertebrates, 60% of the fruits had an ornithochorous syndrome and that 70% of the frugivores were birds. Most fruit and frugivorous species (~80%) inhabit forest formations, but many of them also occurred in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cerrado biome; Diaspores; Dispersal syndromes; Forest; Fruit-eating animals; Grassland; Plant-frugivore interactions; Phylogenetic signal; Savanna.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062016000300495
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Woody community dynamics in two fragments of "cerrado" stricto sensu over a seven-year period (1995-2002), MA, Brazil Rev. Bras. Bot.
Aquino,Fabiana de Gois; Walter,Bruno Machado Teles; Ribeiro,José Felipe.
This study was conducted in two fragments of "cerrado" stricto sensu in the Gerais de Balsas Colonization Project, located in southern Maranhão, Brazil. The objective was to evaluate the dynamics of the woody plant community, over seven years (1995-2002). Four transects of 160 × 20 m were monitored. All woody plants with a stem diameter > 3 cm, at 0.30 m above ground level, were recorded. In 1995, 983 and 1,177 stems were sampled in fragments 1 and 2, respectively; in 2002, 1057 and 1406 stems were sampled in the same fragments. In 1995, the Shannon diversity indices (H') were 3.07 and 3.33, in fragments 1 and 2, respectively, reaching their maximum value in 2002 of 3.11 and 3.35. The community of fragment 1 showed an increase of 7.5% in density and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Fragmentation; Permanent plots; Plant mortality; Recruitment; Savanna.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042007000100011
Registros recuperados: 4
Primeira ... 1 ... Última
 

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