Floristic composition and vegetation cover of the savannas in the "Alter do Chão" region, Santarém - PA
In this study, we determined the floristic composition in 38 plots of 3.75 ha (250 m x 150 m) distributed throughout 30.000 ha of savannas of "Alter do Chão", Santarém Municipality. Our surveys revealed 130 species in 45 families. The only species of dicotoledons that covered 1% or more of the area...
| Autor principal: | Magnusson, William Ernest |
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| Outros Autores: | Lima, Albertina Pimental, Albernaz, Ana Luísa Kerti Mangabeira, Sanaiotti, Tânia Margarete, Guillaumet, Jean Louis |
| Grau: | Artigo |
| Idioma: | pt_BR |
| Publicado em: |
Revista Brasileira de Botanica
2020
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| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/16340 |
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oai:repositorio:1-16340 |
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oai:repositorio:1-16340 Floristic composition and vegetation cover of the savannas in the "Alter do Chão" region, Santarém - PA Composição florística e cobertura vegetal das savanas na região de Alter do Chão, Santarém - PA Magnusson, William Ernest Lima, Albertina Pimental Albernaz, Ana Luísa Kerti Mangabeira Sanaiotti, Tânia Margarete Guillaumet, Jean Louis Anacardium Occidentale Axonopus Canescens Byrsonima Coccolobifolia Byrsonima Crassifolia Carex Dioclea Dioclea Bicolor Himatanthus Fallax Lafoensia Pacari Paspalum Paspalum Carinatum Poaceae Pouteria Qualea Grandiflora Salvertia Convallariodora Trachypogon Plumosus In this study, we determined the floristic composition in 38 plots of 3.75 ha (250 m x 150 m) distributed throughout 30.000 ha of savannas of "Alter do Chão", Santarém Municipality. Our surveys revealed 130 species in 45 families. The only species of dicotoledons that covered 1% or more of the area in the herb-shrub layer were Dioclea bicolor Benth. and Lafoensia pacari A. St.-Hil. Most of the area was covered by the grasses Paspalum carinatum Humb. & Bonpl. ex Flügge (16%) and Trachypogon plumosus (Humb. & Bonpl. ex Willd.) Nees (22%). The grass Axonopus canescens (Nees ex Trin.) Pilg. and the sedge Rhyncospora hirsuta Vahl also covered slightly more than 1% of the area. Only eight species, Anacardium occidentale L., Himatanthus fallax (Müll. Arg.) M. M. Plumel, Lafoensia pacari A. St.-Hil., Byrsonima coccolobifolia Kunth, Byrsonima crassifolia (L.) Kunth, Pouteria ramiflora (Mart.) Radlk., Qualea grandiflora Mart. and Salvertia convallariodora A. St.-Hil. had canopies in the tree layer which projected over more than 1% of the area. Of these, only B. crassifolia (5.7%), S. convallariodora (6.0%) and P. ramiflora (2.1%) projected over more than 2% of the area. Most of the area (mean = 53%) did not have any grass, bush or sedge cover and 45% also had no tree-canopy cover. Grasses and sedges covered a mean of 39.2% of the plots, and shrubs 11.0%. The correlations between similarity matrices based on species in different vegetation strata and taxonomic groups were generally low and there was little correlation between matrices based on quantitative data and matrices based on presence/absence. Therefore, caution should be exercised in comparisons among savanna areas based on only one vegetative stratum or on only one taxonomic group. 2020-06-03T20:53:10Z 2020-06-03T20:53:10Z 2008 Artigo https://repositorio.inpa.gov.br/handle/1/16340 10.1590/S0100-84042008000100015 pt_BR Volume 31, Número 1, Pags. 165-177 Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ application/pdf Revista Brasileira de Botanica |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
pt_BR |
| topic |
Anacardium Occidentale Axonopus Canescens Byrsonima Coccolobifolia Byrsonima Crassifolia Carex Dioclea Dioclea Bicolor Himatanthus Fallax Lafoensia Pacari Paspalum Paspalum Carinatum Poaceae Pouteria Qualea Grandiflora Salvertia Convallariodora Trachypogon Plumosus |
| spellingShingle |
Anacardium Occidentale Axonopus Canescens Byrsonima Coccolobifolia Byrsonima Crassifolia Carex Dioclea Dioclea Bicolor Himatanthus Fallax Lafoensia Pacari Paspalum Paspalum Carinatum Poaceae Pouteria Qualea Grandiflora Salvertia Convallariodora Trachypogon Plumosus Magnusson, William Ernest Floristic composition and vegetation cover of the savannas in the "Alter do Chão" region, Santarém - PA |
| topic_facet |
Anacardium Occidentale Axonopus Canescens Byrsonima Coccolobifolia Byrsonima Crassifolia Carex Dioclea Dioclea Bicolor Himatanthus Fallax Lafoensia Pacari Paspalum Paspalum Carinatum Poaceae Pouteria Qualea Grandiflora Salvertia Convallariodora Trachypogon Plumosus |
| description |
In this study, we determined the floristic composition in 38 plots of 3.75 ha (250 m x 150 m) distributed throughout 30.000 ha of savannas of "Alter do Chão", Santarém Municipality. Our surveys revealed 130 species in 45 families. The only species of dicotoledons that covered 1% or more of the area in the herb-shrub layer were Dioclea bicolor Benth. and Lafoensia pacari A. St.-Hil. Most of the area was covered by the grasses Paspalum carinatum Humb. & Bonpl. ex Flügge (16%) and Trachypogon plumosus (Humb. & Bonpl. ex Willd.) Nees (22%). The grass Axonopus canescens (Nees ex Trin.) Pilg. and the sedge Rhyncospora hirsuta Vahl also covered slightly more than 1% of the area. Only eight species, Anacardium occidentale L., Himatanthus fallax (Müll. Arg.) M. M. Plumel, Lafoensia pacari A. St.-Hil., Byrsonima coccolobifolia Kunth, Byrsonima crassifolia (L.) Kunth, Pouteria ramiflora (Mart.) Radlk., Qualea grandiflora Mart. and Salvertia convallariodora A. St.-Hil. had canopies in the tree layer which projected over more than 1% of the area. Of these, only B. crassifolia (5.7%), S. convallariodora (6.0%) and P. ramiflora (2.1%) projected over more than 2% of the area. Most of the area (mean = 53%) did not have any grass, bush or sedge cover and 45% also had no tree-canopy cover. Grasses and sedges covered a mean of 39.2% of the plots, and shrubs 11.0%. The correlations between similarity matrices based on species in different vegetation strata and taxonomic groups were generally low and there was little correlation between matrices based on quantitative data and matrices based on presence/absence. Therefore, caution should be exercised in comparisons among savanna areas based on only one vegetative stratum or on only one taxonomic group. |
| format |
Artigo |
| author |
Magnusson, William Ernest |
| author2 |
Lima, Albertina Pimental Albernaz, Ana Luísa Kerti Mangabeira Sanaiotti, Tânia Margarete Guillaumet, Jean Louis |
| author2Str |
Lima, Albertina Pimental Albernaz, Ana Luísa Kerti Mangabeira Sanaiotti, Tânia Margarete Guillaumet, Jean Louis |
| title |
Floristic composition and vegetation cover of the savannas in the "Alter do Chão" region, Santarém - PA |
| title_short |
Floristic composition and vegetation cover of the savannas in the "Alter do Chão" region, Santarém - PA |
| title_full |
Floristic composition and vegetation cover of the savannas in the "Alter do Chão" region, Santarém - PA |
| title_fullStr |
Floristic composition and vegetation cover of the savannas in the "Alter do Chão" region, Santarém - PA |
| title_full_unstemmed |
Floristic composition and vegetation cover of the savannas in the "Alter do Chão" region, Santarém - PA |
| title_sort |
floristic composition and vegetation cover of the savannas in the "alter do chão" region, santarém - pa |
| publisher |
Revista Brasileira de Botanica |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/16340 |
| _version_ |
1787142942558781440 |
| score |
11.755432 |