Regeneração natural, herbivoria e aspectos morfo-fisiológicos de Siparuna guianensis Aublet. e Inga sessilis (Vell.) Mart. Em diferentes microambientes de Floresta Estacional Semidecidual
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFU |
Texto Completo: | https://repositorio.ufu.br/handle/123456789/13419 https://doi.org/10.14393/ufu.di.2015.116 |
Resumo: | The Semideciduous Seasonal Forests receive this name because they lose 20 to 50% of their leaves during the dry season. They are typical formations of the Central Brazil, and they present high diversity of vegetable species with approximately 180 vascular species per hectare. However, these forests are currently found only as small fragments. The study of these remaining becomes important to better understand, and thus preserve and recover these forests. Siparuna guianensis Aublet. and Inga sessilis Vell. (Mart.) are characteristic species of such formations and present a great potential for the conservation of them and for the enrichment and the recovery of degraded areas due to their great environmental plasticity. In this study were measured the natural regeneration of these two species in two different microenvironments, natural canopy gaps and areas under closed canopy. A higher density of S. guianensis was found in canopy gaps, decreasing with the increase of these areas. The closed canopy areas and the large canopy gaps seem to present a limiting luminous condition for this species. The herbivory in these species, another factor that influences the natural regeneration, was also estimated in both microenvironments. It was found a greater herbivory rate unique and precisely in individuals of S. guianensis of canopy gaps. This difference was not explained by the nutritional quality of their leaves, which may then be explained by the greater amount of food available to this specie s herbivores in these areas (canopy gaps). Moreover, the photosynthetic responses of S. guianensis and I. sessillis were measured in different microenvironments during the dry season. The results found proved the high environmental plasticity of these species, since despite the water scarcity and the high radiation, there was no occurrence of chronic photoinhibition in selected individuals, but photosynthetic adaptations for dissipation of the excess, potentially harmful, of luminous energy. Presenting the individuals located under the canopy gaps a greater photosynthetic performance probably because they are early successional species, benefit from the conditions of this microenvironment. |
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Regeneração natural, herbivoria e aspectos morfo-fisiológicos de Siparuna guianensis Aublet. e Inga sessilis (Vell.) Mart. Em diferentes microambientes de Floresta Estacional SemidecidualNatural regeneration, herbivory and morpho-physiological aspects of Siparuna guianensis Aublet. and Inga sessillis (Vell.) Mart. in different microenvironments of Semideciduous Seasonal Forest.RecrutamentoEcologia vegetalAmbientes de luzEspécies lenhosasPlantas - efeito da luzFlorestasRecruitmentPlant ecologyLight environmentsWoody speciesCNPQ::CIENCIAS BIOLOGICAS::ECOLOGIAThe Semideciduous Seasonal Forests receive this name because they lose 20 to 50% of their leaves during the dry season. They are typical formations of the Central Brazil, and they present high diversity of vegetable species with approximately 180 vascular species per hectare. However, these forests are currently found only as small fragments. The study of these remaining becomes important to better understand, and thus preserve and recover these forests. Siparuna guianensis Aublet. and Inga sessilis Vell. (Mart.) are characteristic species of such formations and present a great potential for the conservation of them and for the enrichment and the recovery of degraded areas due to their great environmental plasticity. In this study were measured the natural regeneration of these two species in two different microenvironments, natural canopy gaps and areas under closed canopy. A higher density of S. guianensis was found in canopy gaps, decreasing with the increase of these areas. The closed canopy areas and the large canopy gaps seem to present a limiting luminous condition for this species. The herbivory in these species, another factor that influences the natural regeneration, was also estimated in both microenvironments. It was found a greater herbivory rate unique and precisely in individuals of S. guianensis of canopy gaps. This difference was not explained by the nutritional quality of their leaves, which may then be explained by the greater amount of food available to this specie s herbivores in these areas (canopy gaps). Moreover, the photosynthetic responses of S. guianensis and I. sessillis were measured in different microenvironments during the dry season. The results found proved the high environmental plasticity of these species, since despite the water scarcity and the high radiation, there was no occurrence of chronic photoinhibition in selected individuals, but photosynthetic adaptations for dissipation of the excess, potentially harmful, of luminous energy. Presenting the individuals located under the canopy gaps a greater photosynthetic performance probably because they are early successional species, benefit from the conditions of this microenvironment.Conselho Nacional de Desenvolvimento Científico e TecnológicoMestre em Ecologia e Conservação de Recursos NaturaisAs Florestas Estacionais Semideciduais recebem este nome porque perdem 20 a 50% de suas folhas durante a estação seca. Elas são formações típicas do Brasil Central e apresentam alta diversidade de espécies vegetais, com cerca de 180 espécies vasculares por ha. Entretanto, atualmente, essas florestas encontram-se apenas como pequenos fragmentos. O estudo destes remanescentes torna-se importante para melhor conhecer e, assim, preservar e recuperar estas florestas. Siparuna guianensis Aublet. e Inga sessilis Vell. (Mart.) são espécies características dessas formações e apresentam grande potencial para a conservação destas e para o enriquecimento e recuperação de áreas degradadas devido a sua grande plasticidade ambiental. Neste estudo foi levantada a regeneração natural destas duas espécies em dois diferentes microambientes, clareiras naturais e áreas sob dossel fechado. Foi encontrada uma maior densidade de S. guianensis nas clareiras, decrescendo com o aumento da área destas. As áreas de dossel fechado e as maiores clareiras apresentaram, pelo que parece, uma condição luminosa limitante para esta espécie. A herbivoria nessas espécies, outro fator que influencia a regeneração natural, também foi estimada, nos dois microambientes. Foi encontrada uma maior taxa de herbivoria, única e justamente nos indivíduos de S. guianensis de clareiras. Essa diferença não foi explicada pela qualidade nutricional de suas folhas, podendo ser, então, explicada pela maior quantidade de alimento disponível para os herbívoros desta espécie nessas áreas (clareiras). Além disso, foram medidas as respostas fotossintéticas de S. guianensis e I. sessilis nos diferentes microambientes durante a estação seca. Os resultados encontrados comprovaram a alta plasticidade ambiental dessas espécies, uma vez que, apesar da escassez de água e das altas radiações, não foi observada a ocorrência de fotoinibição crônica nos indivíduos selecionados, e sim, adaptações fotossintéticas para a dissipação do excesso, potencialmente prejudicial, de energia luminosa. Apresentando os indivíduos localizados sob as clareiras um maior rendimento fotossintético, provavelmente por se tratar de espécies de início de sucessão, beneficiadas pelas condições desse microambiente.Universidade Federal de UberlândiaBRPrograma de Pós-graduação em Ecologia e Conservação de Recursos NaturaisCiências BiológicasUFUNascimento, Andre Rosalvo Terrahttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4762429J7Sanches, Maria Cristinahttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4728726Y3Rios, Román Carloshttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4266438E7Ferreira, Stella Crosara Alves2016-06-22T18:34:59Z2015-11-192016-06-22T18:34:59Z2015-02-25info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfapplication/pdfFERREIRA, Stella Crosara Alves. Natural regeneration, herbivory and morpho-physiological aspects of Siparuna guianensis Aublet. and Inga sessillis (Vell.) Mart. in different microenvironments of Semideciduous Seasonal Forest.. 2015. 107 f. Dissertação (Mestrado em Ciências Biológicas) - Universidade Federal de Uberlândia, Uberlândia, 2015. DOI https://doi.org/10.14393/ufu.di.2015.116https://repositorio.ufu.br/handle/123456789/13419https://doi.org/10.14393/ufu.di.2015.116porinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFUinstname:Universidade Federal de Uberlândia (UFU)instacron:UFU2021-09-23T18:59:13Zoai:repositorio.ufu.br:123456789/13419Repositório InstitucionalONGhttp://repositorio.ufu.br/oai/requestdiinf@dirbi.ufu.bropendoar:2021-09-23T18:59:13Repositório Institucional da UFU - Universidade Federal de Uberlândia (UFU)false |
dc.title.none.fl_str_mv |
Regeneração natural, herbivoria e aspectos morfo-fisiológicos de Siparuna guianensis Aublet. e Inga sessilis (Vell.) Mart. Em diferentes microambientes de Floresta Estacional Semidecidual Natural regeneration, herbivory and morpho-physiological aspects of Siparuna guianensis Aublet. and Inga sessillis (Vell.) Mart. in different microenvironments of Semideciduous Seasonal Forest. |
title |
Regeneração natural, herbivoria e aspectos morfo-fisiológicos de Siparuna guianensis Aublet. e Inga sessilis (Vell.) Mart. Em diferentes microambientes de Floresta Estacional Semidecidual |
spellingShingle |
Regeneração natural, herbivoria e aspectos morfo-fisiológicos de Siparuna guianensis Aublet. e Inga sessilis (Vell.) Mart. Em diferentes microambientes de Floresta Estacional Semidecidual Ferreira, Stella Crosara Alves Recrutamento Ecologia vegetal Ambientes de luz Espécies lenhosas Plantas - efeito da luz Florestas Recruitment Plant ecology Light environments Woody species CNPQ::CIENCIAS BIOLOGICAS::ECOLOGIA |
title_short |
Regeneração natural, herbivoria e aspectos morfo-fisiológicos de Siparuna guianensis Aublet. e Inga sessilis (Vell.) Mart. Em diferentes microambientes de Floresta Estacional Semidecidual |
title_full |
Regeneração natural, herbivoria e aspectos morfo-fisiológicos de Siparuna guianensis Aublet. e Inga sessilis (Vell.) Mart. Em diferentes microambientes de Floresta Estacional Semidecidual |
title_fullStr |
Regeneração natural, herbivoria e aspectos morfo-fisiológicos de Siparuna guianensis Aublet. e Inga sessilis (Vell.) Mart. Em diferentes microambientes de Floresta Estacional Semidecidual |
title_full_unstemmed |
Regeneração natural, herbivoria e aspectos morfo-fisiológicos de Siparuna guianensis Aublet. e Inga sessilis (Vell.) Mart. Em diferentes microambientes de Floresta Estacional Semidecidual |
title_sort |
Regeneração natural, herbivoria e aspectos morfo-fisiológicos de Siparuna guianensis Aublet. e Inga sessilis (Vell.) Mart. Em diferentes microambientes de Floresta Estacional Semidecidual |
author |
Ferreira, Stella Crosara Alves |
author_facet |
Ferreira, Stella Crosara Alves |
author_role |
author |
dc.contributor.none.fl_str_mv |
Nascimento, Andre Rosalvo Terra http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4762429J7 Sanches, Maria Cristina http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4728726Y3 Rios, Román Carlos http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4266438E7 |
dc.contributor.author.fl_str_mv |
Ferreira, Stella Crosara Alves |
dc.subject.por.fl_str_mv |
Recrutamento Ecologia vegetal Ambientes de luz Espécies lenhosas Plantas - efeito da luz Florestas Recruitment Plant ecology Light environments Woody species CNPQ::CIENCIAS BIOLOGICAS::ECOLOGIA |
topic |
Recrutamento Ecologia vegetal Ambientes de luz Espécies lenhosas Plantas - efeito da luz Florestas Recruitment Plant ecology Light environments Woody species CNPQ::CIENCIAS BIOLOGICAS::ECOLOGIA |
description |
The Semideciduous Seasonal Forests receive this name because they lose 20 to 50% of their leaves during the dry season. They are typical formations of the Central Brazil, and they present high diversity of vegetable species with approximately 180 vascular species per hectare. However, these forests are currently found only as small fragments. The study of these remaining becomes important to better understand, and thus preserve and recover these forests. Siparuna guianensis Aublet. and Inga sessilis Vell. (Mart.) are characteristic species of such formations and present a great potential for the conservation of them and for the enrichment and the recovery of degraded areas due to their great environmental plasticity. In this study were measured the natural regeneration of these two species in two different microenvironments, natural canopy gaps and areas under closed canopy. A higher density of S. guianensis was found in canopy gaps, decreasing with the increase of these areas. The closed canopy areas and the large canopy gaps seem to present a limiting luminous condition for this species. The herbivory in these species, another factor that influences the natural regeneration, was also estimated in both microenvironments. It was found a greater herbivory rate unique and precisely in individuals of S. guianensis of canopy gaps. This difference was not explained by the nutritional quality of their leaves, which may then be explained by the greater amount of food available to this specie s herbivores in these areas (canopy gaps). Moreover, the photosynthetic responses of S. guianensis and I. sessillis were measured in different microenvironments during the dry season. The results found proved the high environmental plasticity of these species, since despite the water scarcity and the high radiation, there was no occurrence of chronic photoinhibition in selected individuals, but photosynthetic adaptations for dissipation of the excess, potentially harmful, of luminous energy. Presenting the individuals located under the canopy gaps a greater photosynthetic performance probably because they are early successional species, benefit from the conditions of this microenvironment. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-11-19 2015-02-25 2016-06-22T18:34:59Z 2016-06-22T18:34:59Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
FERREIRA, Stella Crosara Alves. Natural regeneration, herbivory and morpho-physiological aspects of Siparuna guianensis Aublet. and Inga sessillis (Vell.) Mart. in different microenvironments of Semideciduous Seasonal Forest.. 2015. 107 f. Dissertação (Mestrado em Ciências Biológicas) - Universidade Federal de Uberlândia, Uberlândia, 2015. DOI https://doi.org/10.14393/ufu.di.2015.116 https://repositorio.ufu.br/handle/123456789/13419 https://doi.org/10.14393/ufu.di.2015.116 |
identifier_str_mv |
FERREIRA, Stella Crosara Alves. Natural regeneration, herbivory and morpho-physiological aspects of Siparuna guianensis Aublet. and Inga sessillis (Vell.) Mart. in different microenvironments of Semideciduous Seasonal Forest.. 2015. 107 f. Dissertação (Mestrado em Ciências Biológicas) - Universidade Federal de Uberlândia, Uberlândia, 2015. DOI https://doi.org/10.14393/ufu.di.2015.116 |
url |
https://repositorio.ufu.br/handle/123456789/13419 https://doi.org/10.14393/ufu.di.2015.116 |
dc.language.iso.fl_str_mv |
por |
language |
por |
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info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Uberlândia BR Programa de Pós-graduação em Ecologia e Conservação de Recursos Naturais Ciências Biológicas UFU |
publisher.none.fl_str_mv |
Universidade Federal de Uberlândia BR Programa de Pós-graduação em Ecologia e Conservação de Recursos Naturais Ciências Biológicas UFU |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFU instname:Universidade Federal de Uberlândia (UFU) instacron:UFU |
instname_str |
Universidade Federal de Uberlândia (UFU) |
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UFU |
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UFU |
reponame_str |
Repositório Institucional da UFU |
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Repositório Institucional da UFU |
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Repositório Institucional da UFU - Universidade Federal de Uberlândia (UFU) |
repository.mail.fl_str_mv |
diinf@dirbi.ufu.br |
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1805569583871950848 |