STRUCTURE AND DIVERSITY OF A TROPICAL DRY FOREST ON RESIDUAL RELIEFS IN NORTHEASTERN BRAZIL
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por eng |
Título da fonte: | Ra'e Ga (Online) |
Texto Completo: | https://revistas.ufpr.br/raega/article/view/66049 |
Resumo: | We studied the structural characteristics of forests to better understand their current condition and help plan for the sustainable management of their resources. We delimited 14 sampling units, according to physiognomy and geomorphological position (base, medium slope 1, medium slope 2, and inselberg). To characterize vegetation structure, we used the transect method (50 x 2 m) following to Method of Phanerophytes and Chamaephyties Inventory. After this step, we classified the transects into four biotopes: (CAR: Caatinga on rocky substrate, CBA: Caatinga with open woods, CBC: Caatinga with closed woods, and CDA: degraded shrubby “Caatinga”), according to geomorphological position. Our objective was to test the hypothesis that adjacent areas with different topography differ from one another. For those comparisons, we calculated parametric and non-parametric tests in the software R. We recorded a total of 67 species, including trees, shrubs, and herbs, and high values for diversity (3.4 nats/individual) and evenness (0.83). Based on the comparison between rarefaction curves and non-parametric estimates, we observed the highest diversity in the category Caatinga with closed woods (CBC). Considering its species composition and abundance the group degraded shrubby Caatinga (CDA) is undergoing succession. The Jaccard index did not suggest floristic similarity between biotopes, but rather pointed to a diverse floristic composition in the area, with the presence of species either common or rare to the Caatinga and a higher heterogeneity than among other Brazilian semiarid areas. |
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STRUCTURE AND DIVERSITY OF A TROPICAL DRY FOREST ON RESIDUAL RELIEFS IN NORTHEASTERN BRAZILGeografia; Biogeografiacaatinga, diversity, geographic positionWe studied the structural characteristics of forests to better understand their current condition and help plan for the sustainable management of their resources. We delimited 14 sampling units, according to physiognomy and geomorphological position (base, medium slope 1, medium slope 2, and inselberg). To characterize vegetation structure, we used the transect method (50 x 2 m) following to Method of Phanerophytes and Chamaephyties Inventory. After this step, we classified the transects into four biotopes: (CAR: Caatinga on rocky substrate, CBA: Caatinga with open woods, CBC: Caatinga with closed woods, and CDA: degraded shrubby “Caatinga”), according to geomorphological position. Our objective was to test the hypothesis that adjacent areas with different topography differ from one another. For those comparisons, we calculated parametric and non-parametric tests in the software R. We recorded a total of 67 species, including trees, shrubs, and herbs, and high values for diversity (3.4 nats/individual) and evenness (0.83). Based on the comparison between rarefaction curves and non-parametric estimates, we observed the highest diversity in the category Caatinga with closed woods (CBC). Considering its species composition and abundance the group degraded shrubby Caatinga (CDA) is undergoing succession. The Jaccard index did not suggest floristic similarity between biotopes, but rather pointed to a diverse floristic composition in the area, with the presence of species either common or rare to the Caatinga and a higher heterogeneity than among other Brazilian semiarid areas.UFPRUniversity of Seville (Spain)Agencia Española de Cooperación Internacional para el Desarrollo - AECIDQueiroz, Augusto B. de Queiroz Barbosade Lima, Valeria Raquel PortoArtigas, Rafael Camara Artigas CamaraSouza, Bartolomeu Israel de Souza IsraelQuirino, Zelma Glebya Marciel Quirino Marciel2020-12-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://revistas.ufpr.br/raega/article/view/6604910.5380/raega.v49i0.66049RA'E GA Journal - The Geographic Space in Analysis; v. 49 (2020); 129-142RAEGA - O Espaço Geográfico em Análise; v. 49 (2020); 129-1422177-27381516-413610.5380/raega.v49i0reponame:Ra'e Ga (Online)instname:Universidade Federal do Paraná (UFPR)instacron:UFPRporenghttps://revistas.ufpr.br/raega/article/view/66049/42703https://revistas.ufpr.br/raega/article/view/66049/42772https://revistas.ufpr.br/raega/article/downloadSuppFile/66049/46104Direitos autorais 2020 Raega - O Espaço Geográfico em Análiseinfo:eu-repo/semantics/openAccess2020-12-31T11:05:52Zoai:revistas.ufpr.br:article/66049Revistahttps://revistas.ufpr.br/raegaPUBhttps://revistas.ufpr.br/raega/oai||raega@ufpr.br2177-27382177-2738opendoar:2020-12-31T11:05:52Ra'e Ga (Online) - Universidade Federal do Paraná (UFPR)false |
dc.title.none.fl_str_mv |
STRUCTURE AND DIVERSITY OF A TROPICAL DRY FOREST ON RESIDUAL RELIEFS IN NORTHEASTERN BRAZIL |
title |
STRUCTURE AND DIVERSITY OF A TROPICAL DRY FOREST ON RESIDUAL RELIEFS IN NORTHEASTERN BRAZIL |
spellingShingle |
STRUCTURE AND DIVERSITY OF A TROPICAL DRY FOREST ON RESIDUAL RELIEFS IN NORTHEASTERN BRAZIL Queiroz, Augusto B. de Queiroz Barbosa Geografia; Biogeografia caatinga, diversity, geographic position |
title_short |
STRUCTURE AND DIVERSITY OF A TROPICAL DRY FOREST ON RESIDUAL RELIEFS IN NORTHEASTERN BRAZIL |
title_full |
STRUCTURE AND DIVERSITY OF A TROPICAL DRY FOREST ON RESIDUAL RELIEFS IN NORTHEASTERN BRAZIL |
title_fullStr |
STRUCTURE AND DIVERSITY OF A TROPICAL DRY FOREST ON RESIDUAL RELIEFS IN NORTHEASTERN BRAZIL |
title_full_unstemmed |
STRUCTURE AND DIVERSITY OF A TROPICAL DRY FOREST ON RESIDUAL RELIEFS IN NORTHEASTERN BRAZIL |
title_sort |
STRUCTURE AND DIVERSITY OF A TROPICAL DRY FOREST ON RESIDUAL RELIEFS IN NORTHEASTERN BRAZIL |
author |
Queiroz, Augusto B. de Queiroz Barbosa |
author_facet |
Queiroz, Augusto B. de Queiroz Barbosa de Lima, Valeria Raquel Porto Artigas, Rafael Camara Artigas Camara Souza, Bartolomeu Israel de Souza Israel Quirino, Zelma Glebya Marciel Quirino Marciel |
author_role |
author |
author2 |
de Lima, Valeria Raquel Porto Artigas, Rafael Camara Artigas Camara Souza, Bartolomeu Israel de Souza Israel Quirino, Zelma Glebya Marciel Quirino Marciel |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
University of Seville (Spain) Agencia Española de Cooperación Internacional para el Desarrollo - AECID |
dc.contributor.author.fl_str_mv |
Queiroz, Augusto B. de Queiroz Barbosa de Lima, Valeria Raquel Porto Artigas, Rafael Camara Artigas Camara Souza, Bartolomeu Israel de Souza Israel Quirino, Zelma Glebya Marciel Quirino Marciel |
dc.subject.por.fl_str_mv |
Geografia; Biogeografia caatinga, diversity, geographic position |
topic |
Geografia; Biogeografia caatinga, diversity, geographic position |
description |
We studied the structural characteristics of forests to better understand their current condition and help plan for the sustainable management of their resources. We delimited 14 sampling units, according to physiognomy and geomorphological position (base, medium slope 1, medium slope 2, and inselberg). To characterize vegetation structure, we used the transect method (50 x 2 m) following to Method of Phanerophytes and Chamaephyties Inventory. After this step, we classified the transects into four biotopes: (CAR: Caatinga on rocky substrate, CBA: Caatinga with open woods, CBC: Caatinga with closed woods, and CDA: degraded shrubby “Caatinga”), according to geomorphological position. Our objective was to test the hypothesis that adjacent areas with different topography differ from one another. For those comparisons, we calculated parametric and non-parametric tests in the software R. We recorded a total of 67 species, including trees, shrubs, and herbs, and high values for diversity (3.4 nats/individual) and evenness (0.83). Based on the comparison between rarefaction curves and non-parametric estimates, we observed the highest diversity in the category Caatinga with closed woods (CBC). Considering its species composition and abundance the group degraded shrubby Caatinga (CDA) is undergoing succession. The Jaccard index did not suggest floristic similarity between biotopes, but rather pointed to a diverse floristic composition in the area, with the presence of species either common or rare to the Caatinga and a higher heterogeneity than among other Brazilian semiarid areas. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-30 |
dc.type.none.fl_str_mv |
|
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://revistas.ufpr.br/raega/article/view/66049 10.5380/raega.v49i0.66049 |
url |
https://revistas.ufpr.br/raega/article/view/66049 |
identifier_str_mv |
10.5380/raega.v49i0.66049 |
dc.language.iso.fl_str_mv |
por eng |
language |
por eng |
dc.relation.none.fl_str_mv |
https://revistas.ufpr.br/raega/article/view/66049/42703 https://revistas.ufpr.br/raega/article/view/66049/42772 https://revistas.ufpr.br/raega/article/downloadSuppFile/66049/46104 |
dc.rights.driver.fl_str_mv |
Direitos autorais 2020 Raega - O Espaço Geográfico em Análise info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Direitos autorais 2020 Raega - O Espaço Geográfico em Análise |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
UFPR |
publisher.none.fl_str_mv |
UFPR |
dc.source.none.fl_str_mv |
RA'E GA Journal - The Geographic Space in Analysis; v. 49 (2020); 129-142 RAEGA - O Espaço Geográfico em Análise; v. 49 (2020); 129-142 2177-2738 1516-4136 10.5380/raega.v49i0 reponame:Ra'e Ga (Online) instname:Universidade Federal do Paraná (UFPR) instacron:UFPR |
instname_str |
Universidade Federal do Paraná (UFPR) |
instacron_str |
UFPR |
institution |
UFPR |
reponame_str |
Ra'e Ga (Online) |
collection |
Ra'e Ga (Online) |
repository.name.fl_str_mv |
Ra'e Ga (Online) - Universidade Federal do Paraná (UFPR) |
repository.mail.fl_str_mv |
||raega@ufpr.br |
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1788990175427166208 |