Padrões de habitat e traços funcionais: impacto da fragmentação florestal sobre diferentes assembleias no bioma Pampa
Autor(a) principal: | |
---|---|
Data de Publicação: | 2021 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações do UFSM |
Texto Completo: | http://repositorio.ufsm.br/handle/1/23171 |
Resumo: | Ecotonal forests in contact with native grasslands in the Pampa biome constitute important genetic banks and sources of research about the ecology of plant and animal species, providing essential information for the conservation, restoration, and recovery of ecosystems. In the present study, we evaluated the possible effects of fragmentation, regarding the formation of different habitats conditioned by edge and interior environments and by environmental variables, on the occupation patterns and functional traits of three assemblages: arboreal-shrub component, associated species, and mammals. In three remnants of different sizes: a reference area (RPPN Boa Vista, 243.3 ha) and two smaller fragments (A1-2.6 ha and A2-10.8 ha), inserted in an interhabitat matrix (65 ha) of commercial exploitation of Eucalyptus sp., in Serra do Sudeste, extreme south of Brazil. In the first article, we investigate floristic patterns and possible evidence of the impact of fragmentation on the ecotonal forest in the Brazilian Pampa. The influence of the floristic contact zone, fragmentation, and habitats conditioned by environments and environmental variables on the phytosociological and floristic patterns of the arboreal-shrubby component was observed. Thirty-one families, 50 genera, and 64 species were identified. The most representative families are Myrtaceae, Salicaceae, Lauraceae, and Sapindaceae, with emphasis on the species Podocarpus lambertii. Terrain slope, altitude, and density of regenerants were the environmental variables with the greatest influence on the arboreal-shrub component. In the second article, we investigate the occupation pattern and habitat preferences regarding functional traits of the arborealshrub component, and environmental variables, in three different functional groups of associated species: bryophytes/lichens, vascular epiphytes/pteridophytes, and climbing plants. Bryophytes/lichens prefer the interior of forests, flat and lower altitude areas, with thick and low trees, with a rough and persistent bark. Vascular epiphytes/pteridophytes prefer the interior of forests, high and shallow areas, with thick trees, with rough and exfoliating bark. Climbing plants prefer edge habitats, sloping areas, with lower altitude and greater canopy openness, are little dependent on functional traits, and less sensitive to edge effects and habitat fragmentation. In the third article, we analyze the pattern of use and occupation of habitats by the assemblage of wild native mammals, through the use of camera traps. Eighteen species were recorded, being Nasua nausa and Mazama gouazoubira the most abundants. Different patterns of use by the species were found, some well adapted to forest habitats and others tolerant to the productive matrix. Environmental and vegetation variables had a greater influence on functional traits than on the structure of the mammal assemblage. Finally, our data suggest that the maintenance of diversity for the three studied assemblages is made possible by larger areas of native vegetation, especially for more demanding species, but that connectivity in the landscape is made possible by small vegetation nucleus and by the permeability of the interhabitat matrix, promoting habitat diversity and quality, and influencing local ecological dynamics. They also point out that the effects of fragmentation act differently on different assemblages, even in the same habitat, and that the isolated analysis of a component can lead to conclusions unrepresentative of the ecosystem. And these are fundamental characteristic to define importance and fragility levels of ecosystems in ecological contact zones, where the greatest natural diversity conditions the need for habitats diversity, influencing the conservation measures and strategies to be taken. |
id |
UFSM_e9af20b29ac16e16c41380ffd9570a07 |
---|---|
oai_identifier_str |
oai:repositorio.ufsm.br:1/23171 |
network_acronym_str |
UFSM |
network_name_str |
Biblioteca Digital de Teses e Dissertações do UFSM |
repository_id_str |
|
spelling |
2021-12-07T11:11:42Z2021-12-07T11:11:42Z2021-08-31http://repositorio.ufsm.br/handle/1/23171Ecotonal forests in contact with native grasslands in the Pampa biome constitute important genetic banks and sources of research about the ecology of plant and animal species, providing essential information for the conservation, restoration, and recovery of ecosystems. In the present study, we evaluated the possible effects of fragmentation, regarding the formation of different habitats conditioned by edge and interior environments and by environmental variables, on the occupation patterns and functional traits of three assemblages: arboreal-shrub component, associated species, and mammals. In three remnants of different sizes: a reference area (RPPN Boa Vista, 243.3 ha) and two smaller fragments (A1-2.6 ha and A2-10.8 ha), inserted in an interhabitat matrix (65 ha) of commercial exploitation of Eucalyptus sp., in Serra do Sudeste, extreme south of Brazil. In the first article, we investigate floristic patterns and possible evidence of the impact of fragmentation on the ecotonal forest in the Brazilian Pampa. The influence of the floristic contact zone, fragmentation, and habitats conditioned by environments and environmental variables on the phytosociological and floristic patterns of the arboreal-shrubby component was observed. Thirty-one families, 50 genera, and 64 species were identified. The most representative families are Myrtaceae, Salicaceae, Lauraceae, and Sapindaceae, with emphasis on the species Podocarpus lambertii. Terrain slope, altitude, and density of regenerants were the environmental variables with the greatest influence on the arboreal-shrub component. In the second article, we investigate the occupation pattern and habitat preferences regarding functional traits of the arborealshrub component, and environmental variables, in three different functional groups of associated species: bryophytes/lichens, vascular epiphytes/pteridophytes, and climbing plants. Bryophytes/lichens prefer the interior of forests, flat and lower altitude areas, with thick and low trees, with a rough and persistent bark. Vascular epiphytes/pteridophytes prefer the interior of forests, high and shallow areas, with thick trees, with rough and exfoliating bark. Climbing plants prefer edge habitats, sloping areas, with lower altitude and greater canopy openness, are little dependent on functional traits, and less sensitive to edge effects and habitat fragmentation. In the third article, we analyze the pattern of use and occupation of habitats by the assemblage of wild native mammals, through the use of camera traps. Eighteen species were recorded, being Nasua nausa and Mazama gouazoubira the most abundants. Different patterns of use by the species were found, some well adapted to forest habitats and others tolerant to the productive matrix. Environmental and vegetation variables had a greater influence on functional traits than on the structure of the mammal assemblage. Finally, our data suggest that the maintenance of diversity for the three studied assemblages is made possible by larger areas of native vegetation, especially for more demanding species, but that connectivity in the landscape is made possible by small vegetation nucleus and by the permeability of the interhabitat matrix, promoting habitat diversity and quality, and influencing local ecological dynamics. They also point out that the effects of fragmentation act differently on different assemblages, even in the same habitat, and that the isolated analysis of a component can lead to conclusions unrepresentative of the ecosystem. And these are fundamental characteristic to define importance and fragility levels of ecosystems in ecological contact zones, where the greatest natural diversity conditions the need for habitats diversity, influencing the conservation measures and strategies to be taken.Florestas ecotonais em contato com os campos nativos no bioma Pampa constituem importantes bancos genéticos e fontes de pesquisa sobre a ecologia das espécies vegetais e animais, fornecendo informações primordiais para a conservação, restauração e recuperação de ecossistemas. No presente estudo avaliamos os possíveis efeitos da fragmentação, quanto à formação de diferentes habitats condicionados por ambientes de borda e interior e por variáveis ambientais, sobre os padrões de ocupação e traços funcionais de três assembleias: componente arbóreo-arbustivo, espécies associadas e mastofauna. Em três remanescentes de diferentes tamanhos: uma área de referência (RPPN Boa Vista, 243,3 ha) e dois fragmentos menores (A1- 2,6 ha e A2- 10,8 ha), inseridos em uma matriz interhabitat (65 ha) de exploração comercial de Eucalyptus sp., na Serra do Sudeste, extremo Sul do Brasil. No primeiro artigo, investigamos os padrões florísticos e possíveis evidências do impacto da fragmentação sobre a floresta ecotonal no Pampa brasileiro. Foi constatada influência da zona de contato florístico, da fragmentação e dos habitats condicionados pelos ambientes e variáveis ambientais, nos padrões fitossociológicos e florísticos do componente arbóreo-arbustivo. Foram identificadas 31 famílias, 50 gêneros e 64 espécies. Myrtaceae, Salicaceae, Lauraceae e Sapindaceae foram as famílias mais representativas, com destaque para Podocarpus lambertii. Inclinação do terreno, altitude, e densidade de regenerantes foram as variáveis ambientais com maior influência sobre o componente arbóreo-arbustivo. No segundo artigo, investigamos o padrão de ocupação e as preferências de habitat quanto a traços funcionais do componente arbóreo-arbustivo e a variáveis ambientais, em três diferentes grupos funcionais de espécies associadas: briófitas/líquens, epífitas vasculares/pteridófitas e trepadeiras. Briófitas/líquens preferem o interior das florestas, áreas planas e de menor altitude, com árvores grossas e baixas, de casca rugosa e persistente. Epífitas vasculares/pteridófitas preferem o interior das florestas, áreas altas e pouco declivosas, com árvores grossas, de casca rugosa e esfoliante. Trepadeiras preferem os habitats de borda, áreas declivosas, com menor altitude e maior abertura do dossel, são pouco dependentes de traços funcionais, e menos sensíveis aos efeitos da fragmentação. No terceiro artigo, analisamos o padrão de uso e ocupação de habitats pela assembleia de mamíferos silvestres nativos, através do uso de armadilhas fotográficas. Foram registradas 18 espécies, sendo Nasua nausa e Mazama gouazoubira as mais abundantes. Foi constatado diferentes padrões de uso pelas espécies, algumas bem adaptadas a habitats florestais e outras tolerantes à matriz produtiva. As variáveis ambientais e de vegetação tiveram maior influência sobre os traços funcionais do que sobre a estrutura da assembleia de mamíferos. Por fim, nossos dados sugerem que a manutenção da diversidade, para as três assembleias estudadas, seja possibilitada por áreas maiores de vegetação nativa, principalmente para espécies mais exigentes, mas que a conectividade na paisagem seja viabilizada pelos pequenos núcleos de vegetação e pela permeabilidade da matriz interhabitat, promovendo diversidade e qualidade de habitats e influenciando nas dinâmicas ecológicas locais. Também apontam que os efeitos da fragmentação atuam de forma distinta sobre diferentes assembleias, mesmo em um mesmo habitat, e que a análise isolada de um componente pode levar a conclusões pouco representativas do ecossistema. E estas são características fundamentais para definir níveis de importância e fragilidade dos ecossistemas em zona de contato ecológico, onde a maior diversidade natural condiciona a necessidade de diversidade de habitats, influenciando nas medidas e estratégias de conservação a serem tomadas.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPESporUniversidade Federal de Santa MariaCentro de Ciências RuraisPrograma de Pós-Graduação em Engenharia FlorestalUFSMBrasilRecursos Florestais e Engenharia FlorestalAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessFloresta ecotonalFitossociologiaForófitosMastofaunaRestauração ecológicaEcotonal forestPhytosociologyPhorophytesMammalsEcological restorationCNPQ::CIENCIAS AGRARIAS::RECURSOS FLORESTAIS E ENGENHARIA FLORESTALPadrões de habitat e traços funcionais: impacto da fragmentação florestal sobre diferentes assembleias no bioma PampaHabitat patterns and functional traits: impact of forest fragmentation on different assemblies in the Pampa biomeinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisRovedder, Ana Paula Moreirahttp://lattes.cnpq.br/5274469660466638Silva, Ana Carolina daMähler Junior, Jan Karel FelixEssi, LilianaDenardi, Lucianohttp://lattes.cnpq.br/2215744172350542Silva Junior, José Carlos Corrêa da5002000000036006006006006006006003a58e6ed-5033-4f8a-b8b8-92d94f074e0a2806ed72-5f9e-4020-bc94-a2e678e9e15d37e1982e-07e9-4895-b91d-ca22d3bbcc3481e3b285-aab1-45dc-874c-da06e21945699f220056-d7f3-4f58-aec9-01613234022865605dc7-4ce3-4435-bd6b-d8801ea1bd85reponame:Biblioteca Digital de Teses e Dissertações do UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMORIGINALTES_PPGEF_2021_SILVA_JUNIOR_JOSÉ.pdfTES_PPGEF_2021_SILVA_JUNIOR_JOSÉ.pdfTese de doutoradoapplication/pdf4596903http://repositorio.ufsm.br/bitstream/1/23171/1/TES_PPGEF_2021_SILVA_JUNIOR_JOS%c3%89.pdf180423df098fe96dbbe873c7d5f9a73bMD51CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-8805http://repositorio.ufsm.br/bitstream/1/23171/2/license_rdf4460e5956bc1d1639be9ae6146a50347MD52LICENSElicense.txtlicense.txttext/plain; charset=utf-81956http://repositorio.ufsm.br/bitstream/1/23171/3/license.txt2f0571ecee68693bd5cd3f17c1e075dfMD53TEXTTES_PPGEF_2021_SILVA_JUNIOR_JOSÉ.pdf.txtTES_PPGEF_2021_SILVA_JUNIOR_JOSÉ.pdf.txtExtracted texttext/plain397248http://repositorio.ufsm.br/bitstream/1/23171/4/TES_PPGEF_2021_SILVA_JUNIOR_JOS%c3%89.pdf.txt9c1f653b91b84187af7df5a71931c9abMD54THUMBNAILTES_PPGEF_2021_SILVA_JUNIOR_JOSÉ.pdf.jpgTES_PPGEF_2021_SILVA_JUNIOR_JOSÉ.pdf.jpgIM Thumbnailimage/jpeg4395http://repositorio.ufsm.br/bitstream/1/23171/5/TES_PPGEF_2021_SILVA_JUNIOR_JOS%c3%89.pdf.jpg0e9c0574bca8573367617fb95d9222e7MD551/231712021-12-08 03:04:32.016oai:repositorio.ufsm.br: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 Digital de Teses e Dissertaçõeshttps://repositorio.ufsm.br/ONGhttps://repositorio.ufsm.br/oai/requestatendimento.sib@ufsm.br||tedebc@gmail.comopendoar:2021-12-08T06:04:32Biblioteca Digital de Teses e Dissertações do UFSM - Universidade Federal de Santa Maria (UFSM)false |
dc.title.por.fl_str_mv |
Padrões de habitat e traços funcionais: impacto da fragmentação florestal sobre diferentes assembleias no bioma Pampa |
dc.title.alternative.eng.fl_str_mv |
Habitat patterns and functional traits: impact of forest fragmentation on different assemblies in the Pampa biome |
title |
Padrões de habitat e traços funcionais: impacto da fragmentação florestal sobre diferentes assembleias no bioma Pampa |
spellingShingle |
Padrões de habitat e traços funcionais: impacto da fragmentação florestal sobre diferentes assembleias no bioma Pampa Silva Junior, José Carlos Corrêa da Floresta ecotonal Fitossociologia Forófitos Mastofauna Restauração ecológica Ecotonal forest Phytosociology Phorophytes Mammals Ecological restoration CNPQ::CIENCIAS AGRARIAS::RECURSOS FLORESTAIS E ENGENHARIA FLORESTAL |
title_short |
Padrões de habitat e traços funcionais: impacto da fragmentação florestal sobre diferentes assembleias no bioma Pampa |
title_full |
Padrões de habitat e traços funcionais: impacto da fragmentação florestal sobre diferentes assembleias no bioma Pampa |
title_fullStr |
Padrões de habitat e traços funcionais: impacto da fragmentação florestal sobre diferentes assembleias no bioma Pampa |
title_full_unstemmed |
Padrões de habitat e traços funcionais: impacto da fragmentação florestal sobre diferentes assembleias no bioma Pampa |
title_sort |
Padrões de habitat e traços funcionais: impacto da fragmentação florestal sobre diferentes assembleias no bioma Pampa |
author |
Silva Junior, José Carlos Corrêa da |
author_facet |
Silva Junior, José Carlos Corrêa da |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Rovedder, Ana Paula Moreira |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/5274469660466638 |
dc.contributor.referee1.fl_str_mv |
Silva, Ana Carolina da |
dc.contributor.referee2.fl_str_mv |
Mähler Junior, Jan Karel Felix |
dc.contributor.referee3.fl_str_mv |
Essi, Liliana |
dc.contributor.referee4.fl_str_mv |
Denardi, Luciano |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/2215744172350542 |
dc.contributor.author.fl_str_mv |
Silva Junior, José Carlos Corrêa da |
contributor_str_mv |
Rovedder, Ana Paula Moreira Silva, Ana Carolina da Mähler Junior, Jan Karel Felix Essi, Liliana Denardi, Luciano |
dc.subject.por.fl_str_mv |
Floresta ecotonal Fitossociologia Forófitos Mastofauna Restauração ecológica |
topic |
Floresta ecotonal Fitossociologia Forófitos Mastofauna Restauração ecológica Ecotonal forest Phytosociology Phorophytes Mammals Ecological restoration CNPQ::CIENCIAS AGRARIAS::RECURSOS FLORESTAIS E ENGENHARIA FLORESTAL |
dc.subject.eng.fl_str_mv |
Ecotonal forest Phytosociology Phorophytes Mammals Ecological restoration |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS AGRARIAS::RECURSOS FLORESTAIS E ENGENHARIA FLORESTAL |
description |
Ecotonal forests in contact with native grasslands in the Pampa biome constitute important genetic banks and sources of research about the ecology of plant and animal species, providing essential information for the conservation, restoration, and recovery of ecosystems. In the present study, we evaluated the possible effects of fragmentation, regarding the formation of different habitats conditioned by edge and interior environments and by environmental variables, on the occupation patterns and functional traits of three assemblages: arboreal-shrub component, associated species, and mammals. In three remnants of different sizes: a reference area (RPPN Boa Vista, 243.3 ha) and two smaller fragments (A1-2.6 ha and A2-10.8 ha), inserted in an interhabitat matrix (65 ha) of commercial exploitation of Eucalyptus sp., in Serra do Sudeste, extreme south of Brazil. In the first article, we investigate floristic patterns and possible evidence of the impact of fragmentation on the ecotonal forest in the Brazilian Pampa. The influence of the floristic contact zone, fragmentation, and habitats conditioned by environments and environmental variables on the phytosociological and floristic patterns of the arboreal-shrubby component was observed. Thirty-one families, 50 genera, and 64 species were identified. The most representative families are Myrtaceae, Salicaceae, Lauraceae, and Sapindaceae, with emphasis on the species Podocarpus lambertii. Terrain slope, altitude, and density of regenerants were the environmental variables with the greatest influence on the arboreal-shrub component. In the second article, we investigate the occupation pattern and habitat preferences regarding functional traits of the arborealshrub component, and environmental variables, in three different functional groups of associated species: bryophytes/lichens, vascular epiphytes/pteridophytes, and climbing plants. Bryophytes/lichens prefer the interior of forests, flat and lower altitude areas, with thick and low trees, with a rough and persistent bark. Vascular epiphytes/pteridophytes prefer the interior of forests, high and shallow areas, with thick trees, with rough and exfoliating bark. Climbing plants prefer edge habitats, sloping areas, with lower altitude and greater canopy openness, are little dependent on functional traits, and less sensitive to edge effects and habitat fragmentation. In the third article, we analyze the pattern of use and occupation of habitats by the assemblage of wild native mammals, through the use of camera traps. Eighteen species were recorded, being Nasua nausa and Mazama gouazoubira the most abundants. Different patterns of use by the species were found, some well adapted to forest habitats and others tolerant to the productive matrix. Environmental and vegetation variables had a greater influence on functional traits than on the structure of the mammal assemblage. Finally, our data suggest that the maintenance of diversity for the three studied assemblages is made possible by larger areas of native vegetation, especially for more demanding species, but that connectivity in the landscape is made possible by small vegetation nucleus and by the permeability of the interhabitat matrix, promoting habitat diversity and quality, and influencing local ecological dynamics. They also point out that the effects of fragmentation act differently on different assemblages, even in the same habitat, and that the isolated analysis of a component can lead to conclusions unrepresentative of the ecosystem. And these are fundamental characteristic to define importance and fragility levels of ecosystems in ecological contact zones, where the greatest natural diversity conditions the need for habitats diversity, influencing the conservation measures and strategies to be taken. |
publishDate |
2021 |
dc.date.accessioned.fl_str_mv |
2021-12-07T11:11:42Z |
dc.date.available.fl_str_mv |
2021-12-07T11:11:42Z |
dc.date.issued.fl_str_mv |
2021-08-31 |
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://repositorio.ufsm.br/handle/1/23171 |
url |
http://repositorio.ufsm.br/handle/1/23171 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.cnpq.fl_str_mv |
500200000003 |
dc.relation.confidence.fl_str_mv |
600 600 600 600 600 600 600 |
dc.relation.authority.fl_str_mv |
3a58e6ed-5033-4f8a-b8b8-92d94f074e0a 2806ed72-5f9e-4020-bc94-a2e678e9e15d 37e1982e-07e9-4895-b91d-ca22d3bbcc34 81e3b285-aab1-45dc-874c-da06e2194569 9f220056-d7f3-4f58-aec9-016132340228 65605dc7-4ce3-4435-bd6b-d8801ea1bd85 |
dc.rights.driver.fl_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Centro de Ciências Rurais |
dc.publisher.program.fl_str_mv |
Programa de Pós-Graduação em Engenharia Florestal |
dc.publisher.initials.fl_str_mv |
UFSM |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
Recursos Florestais e Engenharia Florestal |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Centro de Ciências Rurais |
dc.source.none.fl_str_mv |
reponame:Biblioteca Digital de Teses e Dissertações do UFSM instname:Universidade Federal de Santa Maria (UFSM) instacron:UFSM |
instname_str |
Universidade Federal de Santa Maria (UFSM) |
instacron_str |
UFSM |
institution |
UFSM |
reponame_str |
Biblioteca Digital de Teses e Dissertações do UFSM |
collection |
Biblioteca Digital de Teses e Dissertações do UFSM |
bitstream.url.fl_str_mv |
http://repositorio.ufsm.br/bitstream/1/23171/1/TES_PPGEF_2021_SILVA_JUNIOR_JOS%c3%89.pdf http://repositorio.ufsm.br/bitstream/1/23171/2/license_rdf http://repositorio.ufsm.br/bitstream/1/23171/3/license.txt http://repositorio.ufsm.br/bitstream/1/23171/4/TES_PPGEF_2021_SILVA_JUNIOR_JOS%c3%89.pdf.txt http://repositorio.ufsm.br/bitstream/1/23171/5/TES_PPGEF_2021_SILVA_JUNIOR_JOS%c3%89.pdf.jpg |
bitstream.checksum.fl_str_mv |
180423df098fe96dbbe873c7d5f9a73b 4460e5956bc1d1639be9ae6146a50347 2f0571ecee68693bd5cd3f17c1e075df 9c1f653b91b84187af7df5a71931c9ab 0e9c0574bca8573367617fb95d9222e7 |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 MD5 MD5 MD5 |
repository.name.fl_str_mv |
Biblioteca Digital de Teses e Dissertações do UFSM - Universidade Federal de Santa Maria (UFSM) |
repository.mail.fl_str_mv |
atendimento.sib@ufsm.br||tedebc@gmail.com |
_version_ |
1801485246874517504 |