EDGE EFFECT AS SOURCE OF HETEROGENEITY OF THE TREE COMPONENT IN AN ARAUCARIA FOREST IN SOUTHERN BRAZIL

Detalhes bibliográficos
Autor(a) principal: Pscheidt, Francieli
Data de Publicação: 2018
Outros Autores: Higuchi, Pedro, Silva, Ana Carolina da, Rech, Tássio Dresch, Salami, Bruna, Ferreira, Tiago de Souza, Bonazza, Marcelo, Bento, Marco Antonio
Tipo de documento: Artigo
Idioma: por
Título da fonte: Ciência Florestal (Online)
Texto Completo: https://periodicos.ufsm.br/cienciaflorestal/article/view/32046
Resumo: This study aimed to evaluate changes in the organization of tree species communities due to edge effects in a forest remnant in southern Brazil. Five transects were installed in the study area, perpendicular to the forest edge, with the dimensions of 100x20 m, subdivided into ten plots. The edge sector was defined for the distance of 0-50 m and the interior for the distance of 50-100 m. All trees with circumference at breast height ≥ 15.7 were measured, identified and classified into regeneration guilds. The sectors were compared using the t test for normally distributed variables, Mann-Whitney test for non-normal distributions, rarefaction, for richness, and Chi-square test applied to a contingency table, to check the distribution of individuals of different regeneration guilds. The sectorization as a function of edge and interior represented an important source of forest heterogeneity, once the most marginal part of the fragment was characterized by a tree component of higher density, smaller average height and prevalence of individuals of light demanding species. In the context of biodiversity conservation of the Araucaria Forest, this study suggests the need for conservation of forest fragments which size and spatial configuration allow the existence of interior area, in order to contemplate the protection of non-tolerant species of edge conditions.
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spelling EDGE EFFECT AS SOURCE OF HETEROGENEITY OF THE TREE COMPONENT IN AN ARAUCARIA FOREST IN SOUTHERN BRAZILEFEITO DE BORDA COMO FONTE DA HETEROGENEIDADE DO COMPONENTE ARBÓREO EM UMA FLORESTA COM ARAUCÁRIA NO SUL DO BRASILAraucaria Forestforest fragmentsSanta Catarina plateau.Floresta Ombrófila Mistafragmentos florestaisPlanalto CatarinenseThis study aimed to evaluate changes in the organization of tree species communities due to edge effects in a forest remnant in southern Brazil. Five transects were installed in the study area, perpendicular to the forest edge, with the dimensions of 100x20 m, subdivided into ten plots. The edge sector was defined for the distance of 0-50 m and the interior for the distance of 50-100 m. All trees with circumference at breast height ≥ 15.7 were measured, identified and classified into regeneration guilds. The sectors were compared using the t test for normally distributed variables, Mann-Whitney test for non-normal distributions, rarefaction, for richness, and Chi-square test applied to a contingency table, to check the distribution of individuals of different regeneration guilds. The sectorization as a function of edge and interior represented an important source of forest heterogeneity, once the most marginal part of the fragment was characterized by a tree component of higher density, smaller average height and prevalence of individuals of light demanding species. In the context of biodiversity conservation of the Araucaria Forest, this study suggests the need for conservation of forest fragments which size and spatial configuration allow the existence of interior area, in order to contemplate the protection of non-tolerant species of edge conditions.Objetivou-se avaliar as alterações na organização de uma comunidade arbórea causadas pelo efeito de borda em um remanescente de Floresta com Araucária no sul do Brasil. Foram instaladas cinco transeções de 100 x 20 m na área de estudo, perpendiculares às bordas florestais, subdivididas em dez parcelas. Foi definido como setor borda a distância de 0-50 m e o interior, após 50 m. Todas as árvores com circunferência na altura do peito ≥ 15,7 cm foram mensuradas, identificadas e classificadas em guildas de regeneração. Os setores foram comparados por meio do teste t, para variáveis com distribuição normal, teste de Mann-Whitney, para distribuições não normais, rarefação, para a riqueza, e teste de qui-quadrado aplicado a uma tabela de contingência, para verificar a distribuição dos indivíduos das diferentes guildas de regeneração. A setorização em função da borda e interior representou uma importante fonte de heterogeneidade florestal, uma vez que a parte mais marginal do fragmento caracterizou-se por apresentar um componente arbóreo de maior densidade, menor altura média e predomínio de indivíduos de espécies exigentes em luz. Do ponto de vista de conservação da biodiversidade da Floresta com Araucária, o presente estudo sugere a necessidade da conservação de fragmentos cujo tamanho e configuração espacial permitam a existência de áreas de interior, com o propósito de contemplar a proteção de espécies não tolerantes às condições de borda.Universidade Federal de Santa Maria2018-06-29info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufsm.br/cienciaflorestal/article/view/3204610.5902/1980509832046Ciência Florestal; Vol. 28 No. 2 (2018); 601-612Ciência Florestal; v. 28 n. 2 (2018); 601-6121980-50980103-9954reponame:Ciência Florestal (Online)instname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMporhttps://periodicos.ufsm.br/cienciaflorestal/article/view/32046/pdfCopyright (c) 2018 Ciência Florestalinfo:eu-repo/semantics/openAccessPscheidt, FrancieliHiguchi, PedroSilva, Ana Carolina daRech, Tássio DreschSalami, BrunaFerreira, Tiago de SouzaBonazza, MarceloBento, Marco Antonio2018-06-29T11:07:47Zoai:ojs.pkp.sfu.ca:article/32046Revistahttp://www.ufsm.br/cienciaflorestal/ONGhttps://old.scielo.br/oai/scielo-oai.php||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br1980-50980103-9954opendoar:2018-06-29T11:07:47Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM)false
dc.title.none.fl_str_mv EDGE EFFECT AS SOURCE OF HETEROGENEITY OF THE TREE COMPONENT IN AN ARAUCARIA FOREST IN SOUTHERN BRAZIL
EFEITO DE BORDA COMO FONTE DA HETEROGENEIDADE DO COMPONENTE ARBÓREO EM UMA FLORESTA COM ARAUCÁRIA NO SUL DO BRASIL
title EDGE EFFECT AS SOURCE OF HETEROGENEITY OF THE TREE COMPONENT IN AN ARAUCARIA FOREST IN SOUTHERN BRAZIL
spellingShingle EDGE EFFECT AS SOURCE OF HETEROGENEITY OF THE TREE COMPONENT IN AN ARAUCARIA FOREST IN SOUTHERN BRAZIL
Pscheidt, Francieli
Araucaria Forest
forest fragments
Santa Catarina plateau.
Floresta Ombrófila Mista
fragmentos florestais
Planalto Catarinense
title_short EDGE EFFECT AS SOURCE OF HETEROGENEITY OF THE TREE COMPONENT IN AN ARAUCARIA FOREST IN SOUTHERN BRAZIL
title_full EDGE EFFECT AS SOURCE OF HETEROGENEITY OF THE TREE COMPONENT IN AN ARAUCARIA FOREST IN SOUTHERN BRAZIL
title_fullStr EDGE EFFECT AS SOURCE OF HETEROGENEITY OF THE TREE COMPONENT IN AN ARAUCARIA FOREST IN SOUTHERN BRAZIL
title_full_unstemmed EDGE EFFECT AS SOURCE OF HETEROGENEITY OF THE TREE COMPONENT IN AN ARAUCARIA FOREST IN SOUTHERN BRAZIL
title_sort EDGE EFFECT AS SOURCE OF HETEROGENEITY OF THE TREE COMPONENT IN AN ARAUCARIA FOREST IN SOUTHERN BRAZIL
author Pscheidt, Francieli
author_facet Pscheidt, Francieli
Higuchi, Pedro
Silva, Ana Carolina da
Rech, Tássio Dresch
Salami, Bruna
Ferreira, Tiago de Souza
Bonazza, Marcelo
Bento, Marco Antonio
author_role author
author2 Higuchi, Pedro
Silva, Ana Carolina da
Rech, Tássio Dresch
Salami, Bruna
Ferreira, Tiago de Souza
Bonazza, Marcelo
Bento, Marco Antonio
author2_role author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Pscheidt, Francieli
Higuchi, Pedro
Silva, Ana Carolina da
Rech, Tássio Dresch
Salami, Bruna
Ferreira, Tiago de Souza
Bonazza, Marcelo
Bento, Marco Antonio
dc.subject.por.fl_str_mv Araucaria Forest
forest fragments
Santa Catarina plateau.
Floresta Ombrófila Mista
fragmentos florestais
Planalto Catarinense
topic Araucaria Forest
forest fragments
Santa Catarina plateau.
Floresta Ombrófila Mista
fragmentos florestais
Planalto Catarinense
description This study aimed to evaluate changes in the organization of tree species communities due to edge effects in a forest remnant in southern Brazil. Five transects were installed in the study area, perpendicular to the forest edge, with the dimensions of 100x20 m, subdivided into ten plots. The edge sector was defined for the distance of 0-50 m and the interior for the distance of 50-100 m. All trees with circumference at breast height ≥ 15.7 were measured, identified and classified into regeneration guilds. The sectors were compared using the t test for normally distributed variables, Mann-Whitney test for non-normal distributions, rarefaction, for richness, and Chi-square test applied to a contingency table, to check the distribution of individuals of different regeneration guilds. The sectorization as a function of edge and interior represented an important source of forest heterogeneity, once the most marginal part of the fragment was characterized by a tree component of higher density, smaller average height and prevalence of individuals of light demanding species. In the context of biodiversity conservation of the Araucaria Forest, this study suggests the need for conservation of forest fragments which size and spatial configuration allow the existence of interior area, in order to contemplate the protection of non-tolerant species of edge conditions.
publishDate 2018
dc.date.none.fl_str_mv 2018-06-29
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 https://periodicos.ufsm.br/cienciaflorestal/article/view/32046
10.5902/1980509832046
url https://periodicos.ufsm.br/cienciaflorestal/article/view/32046
identifier_str_mv 10.5902/1980509832046
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://periodicos.ufsm.br/cienciaflorestal/article/view/32046/pdf
dc.rights.driver.fl_str_mv Copyright (c) 2018 Ciência Florestal
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2018 Ciência Florestal
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal de Santa Maria
publisher.none.fl_str_mv Universidade Federal de Santa Maria
dc.source.none.fl_str_mv Ciência Florestal; Vol. 28 No. 2 (2018); 601-612
Ciência Florestal; v. 28 n. 2 (2018); 601-612
1980-5098
0103-9954
reponame:Ciência Florestal (Online)
instname:Universidade Federal de Santa Maria (UFSM)
instacron:UFSM
instname_str Universidade Federal de Santa Maria (UFSM)
instacron_str UFSM
institution UFSM
reponame_str Ciência Florestal (Online)
collection Ciência Florestal (Online)
repository.name.fl_str_mv Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM)
repository.mail.fl_str_mv ||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br
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