Caracterização fitossociológica das bromeliaceas epifíticas e suas relaçoes com os fatores geomorfologicos e pedologicos da planície do rio Iguaçu, Paraná, Brasil
Autor(a) principal: | |
---|---|
Data de Publicação: | 2013 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFPR |
Texto Completo: | http://hdl.handle.net/1884/3878 |
Resumo: | The forests of the Iguaçu river floodplain, which are part of two distinct phytogeographic units, Mixed Ombrophillous Forest and Semidecidual Seasonal Forest, are currently very modified. This alteration occurred due to historical factors and contemporaneous anthropic action. Epiphytic bromeliads, due to its specific substrate dependence and its strategy to obtain nutrients through their trichomes, are considered indicators of environmental condition alterations. Taking into account the reduced amount of research using this approach and the inexistence of systematic and continuous works with bromeliads along Brazilian's rivers, it was studied the floristic and the structure of the forests, and the communities of bromeliads present on aggradation and degradation surfaces of the compartments established from the first until the third highland of Paraná. In each area, the qualitative and quantitative data of bromeliads were related to the physical factors of the environment, like streambed type, height of the border, predominant geomorphic sites and soil water saturation. It was registered a total of 14 species of bromeliads belonging to six genera, which presented significant differences in diversity and abundance among the compartments. Macroclimate was the most important factor to define the differences between the two phytogeographic units, besides the conservation state of the forest which was a very changeable characteristic among the surfaces. Locally, bromeliads reacted to the high taxes of atmosphere humidity, created by the proximity of the river, by the existence of geomorphic concaved sites and by soils with low permeability that make possible the accumulation of water. They reacted also to the stratification of the forest and the presence of high trees that represent more surface and longer time of exposition of the substrate for the colonization. On phorophytes, the bromeliads occurred in intervals of very varied heights, indicating that the small height of the forest and the existence of forest gaps created by the presence of the river and the presence of soils containing high content of water, influenced the vertical stratification standard. Seedlings could be related to the amount and diversity of existing adults in the area, as well as, to the available environmental humidity. The beginning of the crown was the local of establishment of tank bromeliads and zoochoric bromeliads. This could be related to the biggest weight of the individuals and to the place of landing of avian dispersers. Aechmea recurvata, Wittrockia cyathiformis and Billbergia nutans, beyond Vriesea reitzii, were chosen as indicators of vegetation in advanced state of regeneration. Beside that, Aechmea distichantha, Tillandsia tenuifolia, Tillandsia usneoides and Vriesea friburgensis were considered the pioneers in the occupation of trees that grow in the most recent sediments of the aggradation surfaces. T. usneoides showed to be the most important element for mapping the humid environment in the lowland, but only in open places, where the evaporation and the humidity removal are constant. |
id |
UFPR_008fd193646ae31ad01f9ba6f9e90c90 |
---|---|
oai_identifier_str |
oai:acervodigital.ufpr.br:1884/3878 |
network_acronym_str |
UFPR |
network_name_str |
Repositório Institucional da UFPR |
repository_id_str |
308 |
spelling |
Bonnet, AnneteUniversidade Federal do Paraná. Setor de Ciencias Agrárias. Programa de Pós-Graduaçao em Engenharia FlorestalRoderjan Carlos Vellozo, 1952-2013-05-24T18:05:26Z2013-05-24T18:05:26Z2013-05-24http://hdl.handle.net/1884/3878The forests of the Iguaçu river floodplain, which are part of two distinct phytogeographic units, Mixed Ombrophillous Forest and Semidecidual Seasonal Forest, are currently very modified. This alteration occurred due to historical factors and contemporaneous anthropic action. Epiphytic bromeliads, due to its specific substrate dependence and its strategy to obtain nutrients through their trichomes, are considered indicators of environmental condition alterations. Taking into account the reduced amount of research using this approach and the inexistence of systematic and continuous works with bromeliads along Brazilian's rivers, it was studied the floristic and the structure of the forests, and the communities of bromeliads present on aggradation and degradation surfaces of the compartments established from the first until the third highland of Paraná. In each area, the qualitative and quantitative data of bromeliads were related to the physical factors of the environment, like streambed type, height of the border, predominant geomorphic sites and soil water saturation. It was registered a total of 14 species of bromeliads belonging to six genera, which presented significant differences in diversity and abundance among the compartments. Macroclimate was the most important factor to define the differences between the two phytogeographic units, besides the conservation state of the forest which was a very changeable characteristic among the surfaces. Locally, bromeliads reacted to the high taxes of atmosphere humidity, created by the proximity of the river, by the existence of geomorphic concaved sites and by soils with low permeability that make possible the accumulation of water. They reacted also to the stratification of the forest and the presence of high trees that represent more surface and longer time of exposition of the substrate for the colonization. On phorophytes, the bromeliads occurred in intervals of very varied heights, indicating that the small height of the forest and the existence of forest gaps created by the presence of the river and the presence of soils containing high content of water, influenced the vertical stratification standard. Seedlings could be related to the amount and diversity of existing adults in the area, as well as, to the available environmental humidity. The beginning of the crown was the local of establishment of tank bromeliads and zoochoric bromeliads. This could be related to the biggest weight of the individuals and to the place of landing of avian dispersers. Aechmea recurvata, Wittrockia cyathiformis and Billbergia nutans, beyond Vriesea reitzii, were chosen as indicators of vegetation in advanced state of regeneration. Beside that, Aechmea distichantha, Tillandsia tenuifolia, Tillandsia usneoides and Vriesea friburgensis were considered the pioneers in the occupation of trees that grow in the most recent sediments of the aggradation surfaces. T. usneoides showed to be the most important element for mapping the humid environment in the lowland, but only in open places, where the evaporation and the humidity removal are constant.application/pdfBromemiacea - Iguaçu, Rio (PR e Argentina)Fitogeografia - Iguaçu, Rio (PR e Argentina)TesesIguaçu, Rio (PR e Argentina)Caracterização fitossociológica das bromeliaceas epifíticas e suas relaçoes com os fatores geomorfologicos e pedologicos da planície do rio Iguaçu, Paraná, Brasilinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisporreponame:Repositório Institucional da UFPRinstname:Universidade Federal do Paraná (UFPR)instacron:UFPRinfo:eu-repo/semantics/openAccessORIGINALvers?o1.5_PDF.pdfapplication/pdf4623887https://acervodigital.ufpr.br/bitstream/1884/3878/1/vers%3fo1.5_PDF.pdf6e7a9b18e2adfd8dce909b666e30ff00MD51open accessTEXTvers?o1.5_PDF.pdf.txtvers?o1.5_PDF.pdf.txtExtracted Texttext/plain765048https://acervodigital.ufpr.br/bitstream/1884/3878/2/vers%3fo1.5_PDF.pdf.txt20f9f08a4138d4ef86bae88117f8e8daMD52open accessTHUMBNAILvers?o1.5_PDF.pdf.jpgvers?o1.5_PDF.pdf.jpgGenerated Thumbnailimage/jpeg1343https://acervodigital.ufpr.br/bitstream/1884/3878/3/vers%3fo1.5_PDF.pdf.jpg6b447189f9263a3d366602675ce8c05dMD53open access1884/38782016-04-08 03:15:18.719open accessoai:acervodigital.ufpr.br:1884/3878Repositório de PublicaçõesPUBhttp://acervodigital.ufpr.br/oai/requestopendoar:3082016-04-08T06:15:18Repositório Institucional da UFPR - Universidade Federal do Paraná (UFPR)false |
dc.title.pt_BR.fl_str_mv |
Caracterização fitossociológica das bromeliaceas epifíticas e suas relaçoes com os fatores geomorfologicos e pedologicos da planície do rio Iguaçu, Paraná, Brasil |
title |
Caracterização fitossociológica das bromeliaceas epifíticas e suas relaçoes com os fatores geomorfologicos e pedologicos da planície do rio Iguaçu, Paraná, Brasil |
spellingShingle |
Caracterização fitossociológica das bromeliaceas epifíticas e suas relaçoes com os fatores geomorfologicos e pedologicos da planície do rio Iguaçu, Paraná, Brasil Bonnet, Annete Bromemiacea - Iguaçu, Rio (PR e Argentina) Fitogeografia - Iguaçu, Rio (PR e Argentina) Teses Iguaçu, Rio (PR e Argentina) |
title_short |
Caracterização fitossociológica das bromeliaceas epifíticas e suas relaçoes com os fatores geomorfologicos e pedologicos da planície do rio Iguaçu, Paraná, Brasil |
title_full |
Caracterização fitossociológica das bromeliaceas epifíticas e suas relaçoes com os fatores geomorfologicos e pedologicos da planície do rio Iguaçu, Paraná, Brasil |
title_fullStr |
Caracterização fitossociológica das bromeliaceas epifíticas e suas relaçoes com os fatores geomorfologicos e pedologicos da planície do rio Iguaçu, Paraná, Brasil |
title_full_unstemmed |
Caracterização fitossociológica das bromeliaceas epifíticas e suas relaçoes com os fatores geomorfologicos e pedologicos da planície do rio Iguaçu, Paraná, Brasil |
title_sort |
Caracterização fitossociológica das bromeliaceas epifíticas e suas relaçoes com os fatores geomorfologicos e pedologicos da planície do rio Iguaçu, Paraná, Brasil |
author |
Bonnet, Annete |
author_facet |
Bonnet, Annete |
author_role |
author |
dc.contributor.other.pt_BR.fl_str_mv |
Universidade Federal do Paraná. Setor de Ciencias Agrárias. Programa de Pós-Graduaçao em Engenharia Florestal |
dc.contributor.author.fl_str_mv |
Bonnet, Annete |
dc.contributor.advisor1.fl_str_mv |
Roderjan Carlos Vellozo, 1952- |
contributor_str_mv |
Roderjan Carlos Vellozo, 1952- |
dc.subject.por.fl_str_mv |
Bromemiacea - Iguaçu, Rio (PR e Argentina) Fitogeografia - Iguaçu, Rio (PR e Argentina) Teses Iguaçu, Rio (PR e Argentina) |
topic |
Bromemiacea - Iguaçu, Rio (PR e Argentina) Fitogeografia - Iguaçu, Rio (PR e Argentina) Teses Iguaçu, Rio (PR e Argentina) |
description |
The forests of the Iguaçu river floodplain, which are part of two distinct phytogeographic units, Mixed Ombrophillous Forest and Semidecidual Seasonal Forest, are currently very modified. This alteration occurred due to historical factors and contemporaneous anthropic action. Epiphytic bromeliads, due to its specific substrate dependence and its strategy to obtain nutrients through their trichomes, are considered indicators of environmental condition alterations. Taking into account the reduced amount of research using this approach and the inexistence of systematic and continuous works with bromeliads along Brazilian's rivers, it was studied the floristic and the structure of the forests, and the communities of bromeliads present on aggradation and degradation surfaces of the compartments established from the first until the third highland of Paraná. In each area, the qualitative and quantitative data of bromeliads were related to the physical factors of the environment, like streambed type, height of the border, predominant geomorphic sites and soil water saturation. It was registered a total of 14 species of bromeliads belonging to six genera, which presented significant differences in diversity and abundance among the compartments. Macroclimate was the most important factor to define the differences between the two phytogeographic units, besides the conservation state of the forest which was a very changeable characteristic among the surfaces. Locally, bromeliads reacted to the high taxes of atmosphere humidity, created by the proximity of the river, by the existence of geomorphic concaved sites and by soils with low permeability that make possible the accumulation of water. They reacted also to the stratification of the forest and the presence of high trees that represent more surface and longer time of exposition of the substrate for the colonization. On phorophytes, the bromeliads occurred in intervals of very varied heights, indicating that the small height of the forest and the existence of forest gaps created by the presence of the river and the presence of soils containing high content of water, influenced the vertical stratification standard. Seedlings could be related to the amount and diversity of existing adults in the area, as well as, to the available environmental humidity. The beginning of the crown was the local of establishment of tank bromeliads and zoochoric bromeliads. This could be related to the biggest weight of the individuals and to the place of landing of avian dispersers. Aechmea recurvata, Wittrockia cyathiformis and Billbergia nutans, beyond Vriesea reitzii, were chosen as indicators of vegetation in advanced state of regeneration. Beside that, Aechmea distichantha, Tillandsia tenuifolia, Tillandsia usneoides and Vriesea friburgensis were considered the pioneers in the occupation of trees that grow in the most recent sediments of the aggradation surfaces. T. usneoides showed to be the most important element for mapping the humid environment in the lowland, but only in open places, where the evaporation and the humidity removal are constant. |
publishDate |
2013 |
dc.date.accessioned.fl_str_mv |
2013-05-24T18:05:26Z |
dc.date.available.fl_str_mv |
2013-05-24T18:05:26Z |
dc.date.issued.fl_str_mv |
2013-05-24 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/1884/3878 |
url |
http://hdl.handle.net/1884/3878 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFPR instname:Universidade Federal do Paraná (UFPR) instacron:UFPR |
instname_str |
Universidade Federal do Paraná (UFPR) |
instacron_str |
UFPR |
institution |
UFPR |
reponame_str |
Repositório Institucional da UFPR |
collection |
Repositório Institucional da UFPR |
bitstream.url.fl_str_mv |
https://acervodigital.ufpr.br/bitstream/1884/3878/1/vers%3fo1.5_PDF.pdf https://acervodigital.ufpr.br/bitstream/1884/3878/2/vers%3fo1.5_PDF.pdf.txt https://acervodigital.ufpr.br/bitstream/1884/3878/3/vers%3fo1.5_PDF.pdf.jpg |
bitstream.checksum.fl_str_mv |
6e7a9b18e2adfd8dce909b666e30ff00 20f9f08a4138d4ef86bae88117f8e8da 6b447189f9263a3d366602675ce8c05d |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 MD5 |
repository.name.fl_str_mv |
Repositório Institucional da UFPR - Universidade Federal do Paraná (UFPR) |
repository.mail.fl_str_mv |
|
_version_ |
1801860320490160128 |