Exploração de Euterpe edulis Mart. (Arecaceae): efeitos sobre a estrutura de comunidades vegetais

Detalhes bibliográficos
Ano de defesa: 2015
Autor(a) principal: Silva, Talita Ariela Sampaio e
Orientador(a): Matos, Dalva Maria da Silva lattes
Banca de defesa: Não Informado pela instituição
Tipo de documento: Tese
Tipo de acesso: Acesso aberto
Idioma: por
Instituição de defesa: Universidade Federal de São Carlos
Programa de Pós-Graduação: Programa de Pós-Graduação em Ecologia e Recursos Naturais - PPGERN
Departamento: Não Informado pela instituição
País: BR
Palavras-chave em Português:
Palavras-chave em Inglês:
Área do conhecimento CNPq:
Link de acesso: https://repositorio.ufscar.br/handle/ufscar/1856
Resumo: The harvesting of non-timber forest products (NTFPs) has been considered as a low-impact activity. However, the increasing demand of these products made greater the exploitation, which may cause depletion of resources in Nature. Euterpe edulis Mart. (Arecaceae) is one of the most studied plant species in Brazil, because it is economically important, listed among the most relevant products provided by Atlantic Rainforest. Moreover, this species is considered ecologically important, because it is a valuable food resource for fauna. In natural conditions, E. edulis is the most abundant species in Atlantic Rainforest. Nevertheless, illegal and massive harvesting lead the species to local extinction in some remnants, which resulted in the inclusion of the palm tree amongst the endangered plant species in Brazil. In this context, this study aimed to evaluate the impact of palm tree harvest on diversity at seed rain, regeneration layer and their relationship with the adult plant community. Thus, this study was carried out in two areas at Ilha do Cardoso State Park, both of them with the same land use history, despite the occurrence of massive palm heart harvest within one of them until 20 years ago. At these areas, we sampled seed rain with and without pulp, the regeneration layer and the adult plant community. The major motivations for this study were to apply diversity analysis on the assessment of harvesting impact, and to provide scientific information to the establishment of viable guidelines to the sustainable harvest of palm tree products. Our results showed that the abundance of E. edulis is related to the change of diversity patterns and species composition in seed rain and regeneration layer, and may have an influence on species composition in the future. This confirms the general hypothesis of this study, i.e. the disturbance caused by palm heart harvesting causes changes on species abundance enough to modify plant community structure. These changes could be detected even it has been 20 years after the end of illegal harvesting within the harvested area. The results also indicate that it is viable to make the sustainable harvest of E. edulis products, considering a selective removal of adult individuals and avoiding total suppression of clumps of palm tree. These actions promote heterogeneity on species composition of seed rain and regeneration layer.
id SCAR_c790e8089fc9e8ee37bd4641eab46d5d
oai_identifier_str oai:repositorio.ufscar.br:ufscar/1856
network_acronym_str SCAR
network_name_str Repositório Institucional da UFSCAR
repository_id_str
spelling Silva, Talita Ariela Sampaio eMatos, Dalva Maria da Silvahttp://lattes.cnpq.br/4728734263109138http://lattes.cnpq.br/129240875362632841f62546-7a93-4b24-a5e4-59a5fef037672016-06-02T19:30:13Z2015-05-152016-06-02T19:30:13Z2015-02-27SILVA, Talita Ariela Sampaio e. Exploração de Euterpe edulis Mart. (Arecaceae): efeitos sobre a estrutura de comunidades vegetais. 2015. 120 f. Tese (Doutorado em Ciências Biológicas) - Universidade Federal de São Carlos, São Carlos, 2015.https://repositorio.ufscar.br/handle/ufscar/1856The harvesting of non-timber forest products (NTFPs) has been considered as a low-impact activity. However, the increasing demand of these products made greater the exploitation, which may cause depletion of resources in Nature. Euterpe edulis Mart. (Arecaceae) is one of the most studied plant species in Brazil, because it is economically important, listed among the most relevant products provided by Atlantic Rainforest. Moreover, this species is considered ecologically important, because it is a valuable food resource for fauna. In natural conditions, E. edulis is the most abundant species in Atlantic Rainforest. Nevertheless, illegal and massive harvesting lead the species to local extinction in some remnants, which resulted in the inclusion of the palm tree amongst the endangered plant species in Brazil. In this context, this study aimed to evaluate the impact of palm tree harvest on diversity at seed rain, regeneration layer and their relationship with the adult plant community. Thus, this study was carried out in two areas at Ilha do Cardoso State Park, both of them with the same land use history, despite the occurrence of massive palm heart harvest within one of them until 20 years ago. At these areas, we sampled seed rain with and without pulp, the regeneration layer and the adult plant community. The major motivations for this study were to apply diversity analysis on the assessment of harvesting impact, and to provide scientific information to the establishment of viable guidelines to the sustainable harvest of palm tree products. Our results showed that the abundance of E. edulis is related to the change of diversity patterns and species composition in seed rain and regeneration layer, and may have an influence on species composition in the future. This confirms the general hypothesis of this study, i.e. the disturbance caused by palm heart harvesting causes changes on species abundance enough to modify plant community structure. These changes could be detected even it has been 20 years after the end of illegal harvesting within the harvested area. The results also indicate that it is viable to make the sustainable harvest of E. edulis products, considering a selective removal of adult individuals and avoiding total suppression of clumps of palm tree. These actions promote heterogeneity on species composition of seed rain and regeneration layer.Pelas caracteristicas de seu uso e exploracao, a extracao de produtos florestais nao madeireiros (PFNMs) e tida como sendo de baixo impacto ecologico. Entretanto, a crescente utilizacao destas materias primas nos mercados consumidores levou a um aumento da demanda de exploracao, o que pode levar a deplecao dos produtos explorados. Euterpe edulis (Arecaceae) e uma das especies vegetais mais estudadas do pais, pois tem uma alta importancia economica, sendo um dos principais PFNMs obtidos da Mata Atlantica. Alem disso, a especie tem grande importancia ecologica, por ser um recurso alimentar valioso para a fauna. Em condicoes naturais, E. edulis e a especie dominante na comunidade adulta nas areas cobertas por Floresta Atlantica. Entretanto, a exploracao ilegal e massiva levou a especie a extincao local em certos remanescentes de Mata Atlantica, culminando em sua inclusao entre as especies ameacadas no pais. Diante deste contexto, o presente estudo teve como objetivo geral avaliar o impacto da exploracao do palmito de E. edulis sobre a diversidade na chuva de sementes, no estrato regenerante e a sua relacao com a comunidade adulta. Deste modo, o estudo foi realizado em duas areas no Parque Estadual Ilha do Cardoso, ambas com historico de uso similar, porem, uma delas sofreu exploracao massiva de palmito de E. edulis ate ha cerca de 20 anos, enquanto que a outra nao foi alvo deste tipo de uso. Nestas areas, amostramos a chuva de sementes com e sem polpa, o estrato regenerante e a comunidade adulta. As principais motivacoes deste estudo foram aplicar analises de diversidade na avaliacao e fornecer subsidio cientifico para o estabelecimento de diretrizes mais especificas e viaveis para o uso sustentavel deste produto, que e economicamente importante, mas que tambem e considerada uma especie chave na Floresta Atlantica. Os resultados mostraram que a abundancia de E. edulis altera padroes de diversidade e composicao em especies na chuva de sementes e no estrato regenerante, podendo influenciar na composicao das comunidades vegetais no futuro, confirmando a hipotese geral desta tese, de que o disturbio causado pela exploracao de E. edulis produz alteracoes na densidade de individuos da palmeira suficiente para modificar a estrutura das comunidades vegetais. Tais mudancas puderam ser detectadas mesmo apos 20 anos sem a atividade de exploradores ilegais na area estudada. Os resultados indicam, tambem, que o uso sustentavel do palmito de E. edulis pode ser viavel, considerando a remocao seletiva de individuos adultos, evitando a total supressao de adensamentos desta palmeira, promovendo a heterogeneidade da composicao da chuva de sementes e do estrato regenerante.Universidade Federal de Sao Carlosapplication/pdfporUniversidade Federal de São CarlosPrograma de Pós-Graduação em Ecologia e Recursos Naturais - PPGERNUFSCarBREcologia vegetalEcologia de comunidadesChuva de sementesRegeneração (Biologia)FlorestasDiversidade biológicaDiversity indicesSpecies compositionRichnessBiodiversityCIENCIAS BIOLOGICAS::ECOLOGIAExploração de Euterpe edulis Mart. (Arecaceae): efeitos sobre a estrutura de comunidades vegetaisinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesis-1-17a13cc4a-9e63-4c49-9f74-b35afa1558d3info:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFSCARinstname:Universidade Federal de São Carlos (UFSCAR)instacron:UFSCARORIGINAL6775.pdfapplication/pdf3213380https://repositorio.ufscar.br/bitstream/ufscar/1856/1/6775.pdf36de81e56297427d70c405207779962fMD51TEXT6775.pdf.txt6775.pdf.txtExtracted texttext/plain0https://repositorio.ufscar.br/bitstream/ufscar/1856/2/6775.pdf.txtd41d8cd98f00b204e9800998ecf8427eMD52THUMBNAIL6775.pdf.jpg6775.pdf.jpgIM Thumbnailimage/jpeg4480https://repositorio.ufscar.br/bitstream/ufscar/1856/3/6775.pdf.jpg460de3a9006f79ef7633ea0915ad3355MD53ufscar/18562023-09-18 18:31:29.587oai:repositorio.ufscar.br:ufscar/1856Repositório InstitucionalPUBhttps://repositorio.ufscar.br/oai/requestopendoar:43222023-09-18T18:31:29Repositório Institucional da UFSCAR - Universidade Federal de São Carlos (UFSCAR)false
dc.title.por.fl_str_mv Exploração de Euterpe edulis Mart. (Arecaceae): efeitos sobre a estrutura de comunidades vegetais
title Exploração de Euterpe edulis Mart. (Arecaceae): efeitos sobre a estrutura de comunidades vegetais
spellingShingle Exploração de Euterpe edulis Mart. (Arecaceae): efeitos sobre a estrutura de comunidades vegetais
Silva, Talita Ariela Sampaio e
Ecologia vegetal
Ecologia de comunidades
Chuva de sementes
Regeneração (Biologia)
Florestas
Diversidade biológica
Diversity indices
Species composition
Richness
Biodiversity
CIENCIAS BIOLOGICAS::ECOLOGIA
title_short Exploração de Euterpe edulis Mart. (Arecaceae): efeitos sobre a estrutura de comunidades vegetais
title_full Exploração de Euterpe edulis Mart. (Arecaceae): efeitos sobre a estrutura de comunidades vegetais
title_fullStr Exploração de Euterpe edulis Mart. (Arecaceae): efeitos sobre a estrutura de comunidades vegetais
title_full_unstemmed Exploração de Euterpe edulis Mart. (Arecaceae): efeitos sobre a estrutura de comunidades vegetais
title_sort Exploração de Euterpe edulis Mart. (Arecaceae): efeitos sobre a estrutura de comunidades vegetais
author Silva, Talita Ariela Sampaio e
author_facet Silva, Talita Ariela Sampaio e
author_role author
dc.contributor.authorlattes.por.fl_str_mv http://lattes.cnpq.br/1292408753626328
dc.contributor.author.fl_str_mv Silva, Talita Ariela Sampaio e
dc.contributor.advisor1.fl_str_mv Matos, Dalva Maria da Silva
dc.contributor.advisor1Lattes.fl_str_mv http://lattes.cnpq.br/4728734263109138
dc.contributor.authorID.fl_str_mv 41f62546-7a93-4b24-a5e4-59a5fef03767
contributor_str_mv Matos, Dalva Maria da Silva
dc.subject.por.fl_str_mv Ecologia vegetal
Ecologia de comunidades
Chuva de sementes
Regeneração (Biologia)
Florestas
Diversidade biológica
topic Ecologia vegetal
Ecologia de comunidades
Chuva de sementes
Regeneração (Biologia)
Florestas
Diversidade biológica
Diversity indices
Species composition
Richness
Biodiversity
CIENCIAS BIOLOGICAS::ECOLOGIA
dc.subject.eng.fl_str_mv Diversity indices
Species composition
Richness
Biodiversity
dc.subject.cnpq.fl_str_mv CIENCIAS BIOLOGICAS::ECOLOGIA
description The harvesting of non-timber forest products (NTFPs) has been considered as a low-impact activity. However, the increasing demand of these products made greater the exploitation, which may cause depletion of resources in Nature. Euterpe edulis Mart. (Arecaceae) is one of the most studied plant species in Brazil, because it is economically important, listed among the most relevant products provided by Atlantic Rainforest. Moreover, this species is considered ecologically important, because it is a valuable food resource for fauna. In natural conditions, E. edulis is the most abundant species in Atlantic Rainforest. Nevertheless, illegal and massive harvesting lead the species to local extinction in some remnants, which resulted in the inclusion of the palm tree amongst the endangered plant species in Brazil. In this context, this study aimed to evaluate the impact of palm tree harvest on diversity at seed rain, regeneration layer and their relationship with the adult plant community. Thus, this study was carried out in two areas at Ilha do Cardoso State Park, both of them with the same land use history, despite the occurrence of massive palm heart harvest within one of them until 20 years ago. At these areas, we sampled seed rain with and without pulp, the regeneration layer and the adult plant community. The major motivations for this study were to apply diversity analysis on the assessment of harvesting impact, and to provide scientific information to the establishment of viable guidelines to the sustainable harvest of palm tree products. Our results showed that the abundance of E. edulis is related to the change of diversity patterns and species composition in seed rain and regeneration layer, and may have an influence on species composition in the future. This confirms the general hypothesis of this study, i.e. the disturbance caused by palm heart harvesting causes changes on species abundance enough to modify plant community structure. These changes could be detected even it has been 20 years after the end of illegal harvesting within the harvested area. The results also indicate that it is viable to make the sustainable harvest of E. edulis products, considering a selective removal of adult individuals and avoiding total suppression of clumps of palm tree. These actions promote heterogeneity on species composition of seed rain and regeneration layer.
publishDate 2015
dc.date.available.fl_str_mv 2015-05-15
2016-06-02T19:30:13Z
dc.date.issued.fl_str_mv 2015-02-27
dc.date.accessioned.fl_str_mv 2016-06-02T19:30:13Z
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.citation.fl_str_mv SILVA, Talita Ariela Sampaio e. Exploração de Euterpe edulis Mart. (Arecaceae): efeitos sobre a estrutura de comunidades vegetais. 2015. 120 f. Tese (Doutorado em Ciências Biológicas) - Universidade Federal de São Carlos, São Carlos, 2015.
dc.identifier.uri.fl_str_mv https://repositorio.ufscar.br/handle/ufscar/1856
identifier_str_mv SILVA, Talita Ariela Sampaio e. Exploração de Euterpe edulis Mart. (Arecaceae): efeitos sobre a estrutura de comunidades vegetais. 2015. 120 f. Tese (Doutorado em Ciências Biológicas) - Universidade Federal de São Carlos, São Carlos, 2015.
url https://repositorio.ufscar.br/handle/ufscar/1856
dc.language.iso.fl_str_mv por
language por
dc.relation.confidence.fl_str_mv -1
-1
dc.relation.authority.fl_str_mv 7a13cc4a-9e63-4c49-9f74-b35afa1558d3
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.publisher.none.fl_str_mv Universidade Federal de São Carlos
dc.publisher.program.fl_str_mv Programa de Pós-Graduação em Ecologia e Recursos Naturais - PPGERN
dc.publisher.initials.fl_str_mv UFSCar
dc.publisher.country.fl_str_mv BR
publisher.none.fl_str_mv Universidade Federal de São Carlos
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFSCAR
instname:Universidade Federal de São Carlos (UFSCAR)
instacron:UFSCAR
instname_str Universidade Federal de São Carlos (UFSCAR)
instacron_str UFSCAR
institution UFSCAR
reponame_str Repositório Institucional da UFSCAR
collection Repositório Institucional da UFSCAR
bitstream.url.fl_str_mv https://repositorio.ufscar.br/bitstream/ufscar/1856/1/6775.pdf
https://repositorio.ufscar.br/bitstream/ufscar/1856/2/6775.pdf.txt
https://repositorio.ufscar.br/bitstream/ufscar/1856/3/6775.pdf.jpg
bitstream.checksum.fl_str_mv 36de81e56297427d70c405207779962f
d41d8cd98f00b204e9800998ecf8427e
460de3a9006f79ef7633ea0915ad3355
bitstream.checksumAlgorithm.fl_str_mv MD5
MD5
MD5
repository.name.fl_str_mv Repositório Institucional da UFSCAR - Universidade Federal de São Carlos (UFSCAR)
repository.mail.fl_str_mv
_version_ 1802136469067792384