Floristic composition, environmental variation and species distribution patterns in burned grassland in southern Brazil
Autor(a) principal: | |
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Data de Publicação: | 2006 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Journal of Biology |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842006000600015 |
Resumo: | In regularly burned grassland on Morro Santana, Porto Alegre, RS, Brazil, we investigated differences in the floristic composition and their relation to soil properties, aspect and distance from the forest border. In 48 plots of 0.75 m², we identified a total of 201 species from a local species pool of approximately 450 to 500 species. Most species occurred in low frequencies, showing clumpy distribution patterns in the studied area. Multivariate analysis showed that plots close to the forest edge clearly differed from plots in the open grassland concerning composition and structure. Plots exposed to the north differed from plots on the top of the hill both in the composition of species as well as in soil variables, mainly due to shallower soil in the former. No strong relation between soil properties and variation in vegetation composition could be detected at a finer scale. The studied grassland, as all grassland vegetation in southern Brazil, is very rich in species compared to other grassland formations worldwide. However, this high biodiversity and conservational value of Campos vegetation in general has so far not been recognized properly. Disturbance is essential to maintain this open vegetation type and its species richness. Fire should be considered as a management option in the absence of grazing. |
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Brazilian Journal of Biology |
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spelling |
Floristic composition, environmental variation and species distribution patterns in burned grassland in southern Brazildiversityfiregrasslandsouthern Brazilspecies distribution patternsIn regularly burned grassland on Morro Santana, Porto Alegre, RS, Brazil, we investigated differences in the floristic composition and their relation to soil properties, aspect and distance from the forest border. In 48 plots of 0.75 m², we identified a total of 201 species from a local species pool of approximately 450 to 500 species. Most species occurred in low frequencies, showing clumpy distribution patterns in the studied area. Multivariate analysis showed that plots close to the forest edge clearly differed from plots in the open grassland concerning composition and structure. Plots exposed to the north differed from plots on the top of the hill both in the composition of species as well as in soil variables, mainly due to shallower soil in the former. No strong relation between soil properties and variation in vegetation composition could be detected at a finer scale. The studied grassland, as all grassland vegetation in southern Brazil, is very rich in species compared to other grassland formations worldwide. However, this high biodiversity and conservational value of Campos vegetation in general has so far not been recognized properly. Disturbance is essential to maintain this open vegetation type and its species richness. Fire should be considered as a management option in the absence of grazing.Instituto Internacional de Ecologia2006-11-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842006000600015Brazilian Journal of Biology v.66 n.4 2006reponame:Brazilian Journal of Biologyinstname:Instituto Internacional de Ecologia (IIE)instacron:IIE10.1590/S1519-69842006000600015info:eu-repo/semantics/openAccessOverbeck,G. E.Müller,S. C.Pillar,V. D.Pfadenhauer,J.eng2007-04-13T00:00:00Zoai:scielo:S1519-69842006000600015Revistahttps://www.scielo.br/j/bjb/https://old.scielo.br/oai/scielo-oai.phpbjb@bjb.com.br||bjb@bjb.com.br1678-43751519-6984opendoar:2007-04-13T00:00Brazilian Journal of Biology - Instituto Internacional de Ecologia (IIE)false |
dc.title.none.fl_str_mv |
Floristic composition, environmental variation and species distribution patterns in burned grassland in southern Brazil |
title |
Floristic composition, environmental variation and species distribution patterns in burned grassland in southern Brazil |
spellingShingle |
Floristic composition, environmental variation and species distribution patterns in burned grassland in southern Brazil Overbeck,G. E. diversity fire grassland southern Brazil species distribution patterns |
title_short |
Floristic composition, environmental variation and species distribution patterns in burned grassland in southern Brazil |
title_full |
Floristic composition, environmental variation and species distribution patterns in burned grassland in southern Brazil |
title_fullStr |
Floristic composition, environmental variation and species distribution patterns in burned grassland in southern Brazil |
title_full_unstemmed |
Floristic composition, environmental variation and species distribution patterns in burned grassland in southern Brazil |
title_sort |
Floristic composition, environmental variation and species distribution patterns in burned grassland in southern Brazil |
author |
Overbeck,G. E. |
author_facet |
Overbeck,G. E. Müller,S. C. Pillar,V. D. Pfadenhauer,J. |
author_role |
author |
author2 |
Müller,S. C. Pillar,V. D. Pfadenhauer,J. |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Overbeck,G. E. Müller,S. C. Pillar,V. D. Pfadenhauer,J. |
dc.subject.por.fl_str_mv |
diversity fire grassland southern Brazil species distribution patterns |
topic |
diversity fire grassland southern Brazil species distribution patterns |
description |
In regularly burned grassland on Morro Santana, Porto Alegre, RS, Brazil, we investigated differences in the floristic composition and their relation to soil properties, aspect and distance from the forest border. In 48 plots of 0.75 m², we identified a total of 201 species from a local species pool of approximately 450 to 500 species. Most species occurred in low frequencies, showing clumpy distribution patterns in the studied area. Multivariate analysis showed that plots close to the forest edge clearly differed from plots in the open grassland concerning composition and structure. Plots exposed to the north differed from plots on the top of the hill both in the composition of species as well as in soil variables, mainly due to shallower soil in the former. No strong relation between soil properties and variation in vegetation composition could be detected at a finer scale. The studied grassland, as all grassland vegetation in southern Brazil, is very rich in species compared to other grassland formations worldwide. However, this high biodiversity and conservational value of Campos vegetation in general has so far not been recognized properly. Disturbance is essential to maintain this open vegetation type and its species richness. Fire should be considered as a management option in the absence of grazing. |
publishDate |
2006 |
dc.date.none.fl_str_mv |
2006-11-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842006000600015 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842006000600015 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1519-69842006000600015 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Instituto Internacional de Ecologia |
publisher.none.fl_str_mv |
Instituto Internacional de Ecologia |
dc.source.none.fl_str_mv |
Brazilian Journal of Biology v.66 n.4 2006 reponame:Brazilian Journal of Biology instname:Instituto Internacional de Ecologia (IIE) instacron:IIE |
instname_str |
Instituto Internacional de Ecologia (IIE) |
instacron_str |
IIE |
institution |
IIE |
reponame_str |
Brazilian Journal of Biology |
collection |
Brazilian Journal of Biology |
repository.name.fl_str_mv |
Brazilian Journal of Biology - Instituto Internacional de Ecologia (IIE) |
repository.mail.fl_str_mv |
bjb@bjb.com.br||bjb@bjb.com.br |
_version_ |
1752129876309049344 |