EDGE EFFECT AS SOURCE OF HETEROGENEITY OF THE TREE COMPONENT IN AN ARAUCARIA FOREST IN SOUTHERN BRAZIL
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , , , |
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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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 |
_version_ |
1799944133289181184 |