Florística e estrutura de florestas tropicais sazonalmente secas

Detalhes bibliográficos
Autor(a) principal: Menino, Gisele Cristina de Oliveira
Data de Publicação: 2016
Outros Autores: Santos, Rubens Manoel dos, Apgaua, Deborah Mattos Guimarães, Pires, Gabriela Gomes, Pereira, Diego Gualberto Sales, Fontes, Marco Aurélio Leite, Almeida, Hisaias de Souza
Tipo de documento: Artigo
Idioma: por
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/14821
Resumo: A floristic and structural survey of the tree community in different environments (slope, Arboreal Caatinga and ecotone to savannah) were carried outin Cavernas do Peruaçu National Park, North of Minas Gerais. We aimed to test the following hypotheses: 1 - There is floristic differentiation among the environments; 2 - All environments have the same structural characteristics. Venn Diagrams were used to compare both the shared and unshared species among the environments. Tree distribution by diameter classes for each environment was made by means of frequency histograms. An Indicator Species Analysis and usual phytossociological parameters were used. A total of 305 species were found, distributed in 173 genera and 48 families, of which 166 were found in the slope, 204 in the Arboreal Caatinga and 155 in the ecotone. 54 species were exclusive to the slope, 65 to the Arboreal Caatinga and 35 to the ecotone and only 69 species were common to all three environments. 1391 individuals were sampled, yielding an estimated density of 1340.62, 1765 and 1280 individuals.ha-1 respectively for the slope, Arboreal Caatinga and ecotone. The basal area reached 47.64, 30.05 and 23.29 m2.ha-1, respectively for the slope, Arboreal Caatinga and ecotone. The Shannon diversity index and Pielou’s evenness were, respectively, 3.49 and 0.80 for the slope, 3.74 and 0.84 for the Arboreal Caatinga and 3.61 and 0.85 for the ecotone. The Arboreal Caatinga and the slope presented a gradual decrease in frequency towards the higher diameter classes whereas the ecotone tended to follow a normal distribution.
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spelling Florística e estrutura de florestas tropicais sazonalmente secasFloristic and structure of seasonally dry tropical forestsFitossociologiaÁreas carsticasFlorestas deciduaisPhytosociologyKarst areasSeasonally dry tropical forestsA floristic and structural survey of the tree community in different environments (slope, Arboreal Caatinga and ecotone to savannah) were carried outin Cavernas do Peruaçu National Park, North of Minas Gerais. We aimed to test the following hypotheses: 1 - There is floristic differentiation among the environments; 2 - All environments have the same structural characteristics. Venn Diagrams were used to compare both the shared and unshared species among the environments. Tree distribution by diameter classes for each environment was made by means of frequency histograms. An Indicator Species Analysis and usual phytossociological parameters were used. A total of 305 species were found, distributed in 173 genera and 48 families, of which 166 were found in the slope, 204 in the Arboreal Caatinga and 155 in the ecotone. 54 species were exclusive to the slope, 65 to the Arboreal Caatinga and 35 to the ecotone and only 69 species were common to all three environments. 1391 individuals were sampled, yielding an estimated density of 1340.62, 1765 and 1280 individuals.ha-1 respectively for the slope, Arboreal Caatinga and ecotone. The basal area reached 47.64, 30.05 and 23.29 m2.ha-1, respectively for the slope, Arboreal Caatinga and ecotone. The Shannon diversity index and Pielou’s evenness were, respectively, 3.49 and 0.80 for the slope, 3.74 and 0.84 for the Arboreal Caatinga and 3.61 and 0.85 for the ecotone. The Arboreal Caatinga and the slope presented a gradual decrease in frequency towards the higher diameter classes whereas the ecotone tended to follow a normal distribution.Neste estudo, objetivou-se caracterizar florística e estruturalmente a comunidade arbórea em uma área de encosta, Caatinga arbórea e em área ecotónal com cerrado no Parque Nacional Cavernas do Peruaçu, Norte de Minas Gerais, buscando testar as seguintes hipóteses: 1- Existem diferenciações florísticas entre os ambientes; 2- Todos os ambientes apresentam as mesmas características quanto à estrutura. Foram confeccionados diagrama de Venn e histogramas de frequência da distribuição de indivíduos por classes de diâmetro. Foi feita a análise de Espécies Indicadoras e foram calculados os parâmetros fitossociológicos clássicos. Foram encontradas 305 espécies, distribuídas em 173 gêneros e 48 famílias. Sendo que, na encosta, foram encontradas 166 espécies, na Caatinga arbórea foram encontradas 204 espécies e na área ecotonal foram encontradas 155 espécies. Muitas espécies foram exclusivas a cada ambiente, sendo 54 à encosta, 65 à Caatinga arbórea e 35 ao ecótono. Apenas 69 espécies foram comuns aos três ambientes. Foram amostrados 1391 indivíduos, resultando em uma estimativa de 1340,62, 1765 e 1280 indivíduos.ha-1 na encosta, Caatinga arbórea e ecótono, respectivamente. A área basal em m2.ha-1 foi 47,64, 30,05 e 23,29, respectivamente. Já, o índice de diversidade de Shannon foi 3,49, 3,74 e 3,61 nats.indivíduo-1, e a equabilidade de Pielou foi de 0,80, 0,84 e 0,85. Com relação à distribuição dos indivíduos em classes de diâmetro, a Caatinga arbórea e encosta apresentaram um mesmo padrão, com uma diminuição gradual do número de indivíduos. Já, o ambiente ecotonal apresentou uma distribuição tendendo a normal.Universidade Federal de Lavras (UFLA)2016-04-072017-08-01T20:17:06Z2017-08-01T20:17:06Z2017-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://repositorio.ufla.br/jspui/handle/1/148212317-63420104-7760reponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAporCopyright (c) 2016 CERNEAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessMenino, Gisele Cristina de OliveiraSantos, Rubens Manoel dosApgaua, Deborah Mattos GuimarãesPires, Gabriela GomesPereira, Diego Gualberto SalesFontes, Marco Aurélio LeiteAlmeida, Hisaias de Souza2021-02-22T03:55:29Zoai:localhost:1/14821Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2021-02-22T03:55:29Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Florística e estrutura de florestas tropicais sazonalmente secas
Floristic and structure of seasonally dry tropical forests
title Florística e estrutura de florestas tropicais sazonalmente secas
spellingShingle Florística e estrutura de florestas tropicais sazonalmente secas
Menino, Gisele Cristina de Oliveira
Fitossociologia
Áreas carsticas
Florestas deciduais
Phytosociology
Karst areas
Seasonally dry tropical forests
title_short Florística e estrutura de florestas tropicais sazonalmente secas
title_full Florística e estrutura de florestas tropicais sazonalmente secas
title_fullStr Florística e estrutura de florestas tropicais sazonalmente secas
title_full_unstemmed Florística e estrutura de florestas tropicais sazonalmente secas
title_sort Florística e estrutura de florestas tropicais sazonalmente secas
author Menino, Gisele Cristina de Oliveira
author_facet Menino, Gisele Cristina de Oliveira
Santos, Rubens Manoel dos
Apgaua, Deborah Mattos Guimarães
Pires, Gabriela Gomes
Pereira, Diego Gualberto Sales
Fontes, Marco Aurélio Leite
Almeida, Hisaias de Souza
author_role author
author2 Santos, Rubens Manoel dos
Apgaua, Deborah Mattos Guimarães
Pires, Gabriela Gomes
Pereira, Diego Gualberto Sales
Fontes, Marco Aurélio Leite
Almeida, Hisaias de Souza
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Menino, Gisele Cristina de Oliveira
Santos, Rubens Manoel dos
Apgaua, Deborah Mattos Guimarães
Pires, Gabriela Gomes
Pereira, Diego Gualberto Sales
Fontes, Marco Aurélio Leite
Almeida, Hisaias de Souza
dc.subject.por.fl_str_mv Fitossociologia
Áreas carsticas
Florestas deciduais
Phytosociology
Karst areas
Seasonally dry tropical forests
topic Fitossociologia
Áreas carsticas
Florestas deciduais
Phytosociology
Karst areas
Seasonally dry tropical forests
description A floristic and structural survey of the tree community in different environments (slope, Arboreal Caatinga and ecotone to savannah) were carried outin Cavernas do Peruaçu National Park, North of Minas Gerais. We aimed to test the following hypotheses: 1 - There is floristic differentiation among the environments; 2 - All environments have the same structural characteristics. Venn Diagrams were used to compare both the shared and unshared species among the environments. Tree distribution by diameter classes for each environment was made by means of frequency histograms. An Indicator Species Analysis and usual phytossociological parameters were used. A total of 305 species were found, distributed in 173 genera and 48 families, of which 166 were found in the slope, 204 in the Arboreal Caatinga and 155 in the ecotone. 54 species were exclusive to the slope, 65 to the Arboreal Caatinga and 35 to the ecotone and only 69 species were common to all three environments. 1391 individuals were sampled, yielding an estimated density of 1340.62, 1765 and 1280 individuals.ha-1 respectively for the slope, Arboreal Caatinga and ecotone. The basal area reached 47.64, 30.05 and 23.29 m2.ha-1, respectively for the slope, Arboreal Caatinga and ecotone. The Shannon diversity index and Pielou’s evenness were, respectively, 3.49 and 0.80 for the slope, 3.74 and 0.84 for the Arboreal Caatinga and 3.61 and 0.85 for the ecotone. The Arboreal Caatinga and the slope presented a gradual decrease in frequency towards the higher diameter classes whereas the ecotone tended to follow a normal distribution.
publishDate 2016
dc.date.none.fl_str_mv 2016-04-07
2017-08-01T20:17:06Z
2017-08-01T20:17:06Z
2017-08-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://repositorio.ufla.br/jspui/handle/1/14821
url http://repositorio.ufla.br/jspui/handle/1/14821
dc.language.iso.fl_str_mv por
language por
dc.rights.driver.fl_str_mv Copyright (c) 2016 CERNE
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2016 CERNE
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal de Lavras (UFLA)
publisher.none.fl_str_mv Universidade Federal de Lavras (UFLA)
dc.source.none.fl_str_mv 2317-6342
0104-7760
reponame:Repositório Institucional da UFLA
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Repositório Institucional da UFLA
collection Repositório Institucional da UFLA
repository.name.fl_str_mv Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)
repository.mail.fl_str_mv nivaldo@ufla.br || repositorio.biblioteca@ufla.br
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