Population structure of Pinus elliottii in areas of forest regeneration in Juiz de Fora, MG, Brazil
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Pesquisa Florestal Brasileira (Online) |
Texto Completo: | https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/348 |
Resumo: | Plants of the genus Pinus are known worldwide by biological invasion potential. In the 1960s there were massive plantations of Pinus elliottii in the Campus of Juiz de Fora University, and nowadays the species is widespread. This study analyzed the species population structure in two distinct forest regeneration environments: open area (abandoned pasture) and closed-canopy (secondary forest) on the campus of UFJF, Juiz de Fora, MG, Brazil. The hypothesis were that the open environment would present a better structured population, due to the preference of species for open areas. Random plots were allocated (15 plots of 5 m x 5 m in each environment), and all individuals of the species (trees: dbh . 5 cm, saplings, dbh <5 cm and H . 1 m and seedlings: H <1 m) were measured. We sampled 93 individuals (2,480 ind. ha-1) in the open environment and 122 (3253 ind. ha-1) in the closed-canopy environment. Unlike expected, the environments did not differ in the structural parameters, both presenting stable and self-regenerating populations. The absence of significant correlations (rs, P > 0.05) with environmental variables showed that competition for resources within the local vegetation is not an apparent problem for the permanence of species. |
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Population structure of Pinus elliottii in areas of forest regeneration in Juiz de Fora, MG, BrazilEstrutura populacional de Pinus elliottii em áreas de regeneração florestal em Juiz de Fora, MGAtlantic ForestBiological invasionExotic plantsFloresta AtlânticaInvasão biológicaPlantas exóticasPlants of the genus Pinus are known worldwide by biological invasion potential. In the 1960s there were massive plantations of Pinus elliottii in the Campus of Juiz de Fora University, and nowadays the species is widespread. This study analyzed the species population structure in two distinct forest regeneration environments: open area (abandoned pasture) and closed-canopy (secondary forest) on the campus of UFJF, Juiz de Fora, MG, Brazil. The hypothesis were that the open environment would present a better structured population, due to the preference of species for open areas. Random plots were allocated (15 plots of 5 m x 5 m in each environment), and all individuals of the species (trees: dbh . 5 cm, saplings, dbh <5 cm and H . 1 m and seedlings: H <1 m) were measured. We sampled 93 individuals (2,480 ind. ha-1) in the open environment and 122 (3253 ind. ha-1) in the closed-canopy environment. Unlike expected, the environments did not differ in the structural parameters, both presenting stable and self-regenerating populations. The absence of significant correlations (rs, P > 0.05) with environmental variables showed that competition for resources within the local vegetation is not an apparent problem for the permanence of species.Plantas do gênero Pinus são conhecidas pelo potencial de invasão biológica. O Campus da Universidade Federal de Juiz de Fora (UFJF) foi arborizado na década de 1960 com o plantio massivo de Pinus elliottii, e hoje a espécie está alastrada. Neste estudo, realizado no Campus da UFJF, Juiz de Fora, MG foi analisada a estrutura populacional da espécie em dois ambientes de regeneração florestal: aberto (pastagem abandonada) e fechado (floresta secundária). Partiu-se da premissa que o ambiente aberto apresentaria uma população mais estruturada, pela preferência da espécie por áreas abertas. A amostragem foi por parcelas aleatórias (15 parcelas de 5 m x 5 m em cada ambiente), onde foram medidos todos os indivíduos da espécie (árvores: DAP ≥ 5 cm; arvoretas: DAP < 5 cm e H ≥ 1 m; e mudas: H < 1 m). Foram amostrados 93 indivíduos (2480 ind. ha-1) no ambiente aberto e 122 (3253 ind. ha-1) no fechado. Ao contrário do esperado, os ambientes não diferiram quanto aos parâmetros analisados, ambos com populações estruturadas e auto-regenerantes. A ausência de correlações significativas (rs, P > 0,05) com as variáveis ambientais indicou que a competição por recursos com a vegetação nativa não é um problema aparente para a permanência da espécie.Embrapa Florestas2012-12-17info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/mswordhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/34810.4336/2012.pfb.32.72.367Pesquisa Florestal Brasileira; v. 32 n. 72 (2012): out./dez.; 367Pesquisa Florestal Brasileira; Vol. 32 No. 72 (2012): out./dez.; 3671983-26051809-3647reponame:Pesquisa Florestal Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/348/pdf_12https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/348/1048Menon, Talita AperibenseCarvalho, Fabricio Alviminfo:eu-repo/semantics/openAccess2017-04-28T12:55:53Zoai:pfb.cnpf.embrapa.br/pfb:article/348Revistahttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/PUBhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/oaipfb@embrapa.br || revista.pfb@gmail.com || patricia.mattos@embrapa.br1983-26051809-3647opendoar:2017-04-28T12:55:53Pesquisa Florestal Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Population structure of Pinus elliottii in areas of forest regeneration in Juiz de Fora, MG, Brazil Estrutura populacional de Pinus elliottii em áreas de regeneração florestal em Juiz de Fora, MG |
title |
Population structure of Pinus elliottii in areas of forest regeneration in Juiz de Fora, MG, Brazil |
spellingShingle |
Population structure of Pinus elliottii in areas of forest regeneration in Juiz de Fora, MG, Brazil Menon, Talita Aperibense Atlantic Forest Biological invasion Exotic plants Floresta Atlântica Invasão biológica Plantas exóticas |
title_short |
Population structure of Pinus elliottii in areas of forest regeneration in Juiz de Fora, MG, Brazil |
title_full |
Population structure of Pinus elliottii in areas of forest regeneration in Juiz de Fora, MG, Brazil |
title_fullStr |
Population structure of Pinus elliottii in areas of forest regeneration in Juiz de Fora, MG, Brazil |
title_full_unstemmed |
Population structure of Pinus elliottii in areas of forest regeneration in Juiz de Fora, MG, Brazil |
title_sort |
Population structure of Pinus elliottii in areas of forest regeneration in Juiz de Fora, MG, Brazil |
author |
Menon, Talita Aperibense |
author_facet |
Menon, Talita Aperibense Carvalho, Fabricio Alvim |
author_role |
author |
author2 |
Carvalho, Fabricio Alvim |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Menon, Talita Aperibense Carvalho, Fabricio Alvim |
dc.subject.por.fl_str_mv |
Atlantic Forest Biological invasion Exotic plants Floresta Atlântica Invasão biológica Plantas exóticas |
topic |
Atlantic Forest Biological invasion Exotic plants Floresta Atlântica Invasão biológica Plantas exóticas |
description |
Plants of the genus Pinus are known worldwide by biological invasion potential. In the 1960s there were massive plantations of Pinus elliottii in the Campus of Juiz de Fora University, and nowadays the species is widespread. This study analyzed the species population structure in two distinct forest regeneration environments: open area (abandoned pasture) and closed-canopy (secondary forest) on the campus of UFJF, Juiz de Fora, MG, Brazil. The hypothesis were that the open environment would present a better structured population, due to the preference of species for open areas. Random plots were allocated (15 plots of 5 m x 5 m in each environment), and all individuals of the species (trees: dbh . 5 cm, saplings, dbh <5 cm and H . 1 m and seedlings: H <1 m) were measured. We sampled 93 individuals (2,480 ind. ha-1) in the open environment and 122 (3253 ind. ha-1) in the closed-canopy environment. Unlike expected, the environments did not differ in the structural parameters, both presenting stable and self-regenerating populations. The absence of significant correlations (rs, P > 0.05) with environmental variables showed that competition for resources within the local vegetation is not an apparent problem for the permanence of species. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-12-17 |
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://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/348 10.4336/2012.pfb.32.72.367 |
url |
https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/348 |
identifier_str_mv |
10.4336/2012.pfb.32.72.367 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/348/pdf_12 https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/348/1048 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/msword |
dc.publisher.none.fl_str_mv |
Embrapa Florestas |
publisher.none.fl_str_mv |
Embrapa Florestas |
dc.source.none.fl_str_mv |
Pesquisa Florestal Brasileira; v. 32 n. 72 (2012): out./dez.; 367 Pesquisa Florestal Brasileira; Vol. 32 No. 72 (2012): out./dez.; 367 1983-2605 1809-3647 reponame:Pesquisa Florestal Brasileira (Online) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Pesquisa Florestal Brasileira (Online) |
collection |
Pesquisa Florestal Brasileira (Online) |
repository.name.fl_str_mv |
Pesquisa Florestal Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
pfb@embrapa.br || revista.pfb@gmail.com || patricia.mattos@embrapa.br |
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1783370933545730048 |