Disentangling structural patterns of natural forest fragments in a savanna matrix in the eastern Brazilian Amazon
Autor(a) principal: | |
---|---|
Data de Publicação: | 2017 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Acta Amazonica |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672017000200111 |
Resumo: | ABSTRACT Natural fragments are an important source of richness for the management and conservation of a local flora. The objective of this study was to evaluate the effect of fragmentation on the structure and composition of the plant communities of forest fragments (FF) in Alter do Chão, eastern Brazilian Amazonia. The study sample consisted of 25 FF and nine continuous forest (CF) sites. We compared plant density and species richness between site categories by t-tests, analyzed the differences in composition by cluster analysis, and assessed the effect of fragment size and distance to CF on the basal area and diameter of FF assemblages by linear regression. Individual trees and shrubs with DBH ≥1.27 cm were measured in 2x250 m plots. 17,078 individuals were recorded - 75.32% in FF and 24.68% in CF, comprising 475 species, 216 genera and 64 families. Myrtaceae and Fabaceae were the most abundant families in both FF and CF. Average species richness in FF and CF was statistically different. The 20 species with the highest importance values were similar in FF and CF. The average plant diameter was similar in FF and CF, suggesting that both are "mature" forests composed of thin individuals. Average diameter and total basal area showed a negative relationship with distance to CF and fragment area, respectively. Similarity analysis revealed two groups, one composed exclusively of portions of fragmented forest. Fragments and continuous forest differed in species composition, but were similar in structure. Diameter distribution in fragments was similar to that of primary forests. |
id |
INPA-3_310cbecdf9747c56265d1276368c2be0 |
---|---|
oai_identifier_str |
oai:scielo:S0044-59672017000200111 |
network_acronym_str |
INPA-3 |
network_name_str |
Acta Amazonica |
repository_id_str |
|
spelling |
Disentangling structural patterns of natural forest fragments in a savanna matrix in the eastern Brazilian AmazonBray-CurtisCluster analysisdiameter structuresmall treesABSTRACT Natural fragments are an important source of richness for the management and conservation of a local flora. The objective of this study was to evaluate the effect of fragmentation on the structure and composition of the plant communities of forest fragments (FF) in Alter do Chão, eastern Brazilian Amazonia. The study sample consisted of 25 FF and nine continuous forest (CF) sites. We compared plant density and species richness between site categories by t-tests, analyzed the differences in composition by cluster analysis, and assessed the effect of fragment size and distance to CF on the basal area and diameter of FF assemblages by linear regression. Individual trees and shrubs with DBH ≥1.27 cm were measured in 2x250 m plots. 17,078 individuals were recorded - 75.32% in FF and 24.68% in CF, comprising 475 species, 216 genera and 64 families. Myrtaceae and Fabaceae were the most abundant families in both FF and CF. Average species richness in FF and CF was statistically different. The 20 species with the highest importance values were similar in FF and CF. The average plant diameter was similar in FF and CF, suggesting that both are "mature" forests composed of thin individuals. Average diameter and total basal area showed a negative relationship with distance to CF and fragment area, respectively. Similarity analysis revealed two groups, one composed exclusively of portions of fragmented forest. Fragments and continuous forest differed in species composition, but were similar in structure. Diameter distribution in fragments was similar to that of primary forests.Instituto Nacional de Pesquisas da Amazônia2017-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672017000200111Acta Amazonica v.47 n.2 2017reponame:Acta Amazonicainstname:Instituto Nacional de Pesquisas da Amazônia (INPA)instacron:INPA10.1590/1809-4392201601923info:eu-repo/semantics/openAccessAMARAL,Iêda Leão doMAGNUSSON,William ErnestMATOS,Francisca Dionízia de AlmeidaALBERNAZ,Ana Luisa K.FEITOSA,Yuri OliveiraGUILLAUMET,Jean-Louiseng2017-04-07T00:00:00Zoai:scielo:S0044-59672017000200111Revistahttps://acta.inpa.gov.br/PUBhttps://old.scielo.br/oai/scielo-oai.phpacta@inpa.gov.br||acta@inpa.gov.br1809-43920044-5967opendoar:2017-04-07T00:00Acta Amazonica - Instituto Nacional de Pesquisas da Amazônia (INPA)false |
dc.title.none.fl_str_mv |
Disentangling structural patterns of natural forest fragments in a savanna matrix in the eastern Brazilian Amazon |
title |
Disentangling structural patterns of natural forest fragments in a savanna matrix in the eastern Brazilian Amazon |
spellingShingle |
Disentangling structural patterns of natural forest fragments in a savanna matrix in the eastern Brazilian Amazon AMARAL,Iêda Leão do Bray-Curtis Cluster analysis diameter structure small trees |
title_short |
Disentangling structural patterns of natural forest fragments in a savanna matrix in the eastern Brazilian Amazon |
title_full |
Disentangling structural patterns of natural forest fragments in a savanna matrix in the eastern Brazilian Amazon |
title_fullStr |
Disentangling structural patterns of natural forest fragments in a savanna matrix in the eastern Brazilian Amazon |
title_full_unstemmed |
Disentangling structural patterns of natural forest fragments in a savanna matrix in the eastern Brazilian Amazon |
title_sort |
Disentangling structural patterns of natural forest fragments in a savanna matrix in the eastern Brazilian Amazon |
author |
AMARAL,Iêda Leão do |
author_facet |
AMARAL,Iêda Leão do MAGNUSSON,William Ernest MATOS,Francisca Dionízia de Almeida ALBERNAZ,Ana Luisa K. FEITOSA,Yuri Oliveira GUILLAUMET,Jean-Louis |
author_role |
author |
author2 |
MAGNUSSON,William Ernest MATOS,Francisca Dionízia de Almeida ALBERNAZ,Ana Luisa K. FEITOSA,Yuri Oliveira GUILLAUMET,Jean-Louis |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
AMARAL,Iêda Leão do MAGNUSSON,William Ernest MATOS,Francisca Dionízia de Almeida ALBERNAZ,Ana Luisa K. FEITOSA,Yuri Oliveira GUILLAUMET,Jean-Louis |
dc.subject.por.fl_str_mv |
Bray-Curtis Cluster analysis diameter structure small trees |
topic |
Bray-Curtis Cluster analysis diameter structure small trees |
description |
ABSTRACT Natural fragments are an important source of richness for the management and conservation of a local flora. The objective of this study was to evaluate the effect of fragmentation on the structure and composition of the plant communities of forest fragments (FF) in Alter do Chão, eastern Brazilian Amazonia. The study sample consisted of 25 FF and nine continuous forest (CF) sites. We compared plant density and species richness between site categories by t-tests, analyzed the differences in composition by cluster analysis, and assessed the effect of fragment size and distance to CF on the basal area and diameter of FF assemblages by linear regression. Individual trees and shrubs with DBH ≥1.27 cm were measured in 2x250 m plots. 17,078 individuals were recorded - 75.32% in FF and 24.68% in CF, comprising 475 species, 216 genera and 64 families. Myrtaceae and Fabaceae were the most abundant families in both FF and CF. Average species richness in FF and CF was statistically different. The 20 species with the highest importance values were similar in FF and CF. The average plant diameter was similar in FF and CF, suggesting that both are "mature" forests composed of thin individuals. Average diameter and total basal area showed a negative relationship with distance to CF and fragment area, respectively. Similarity analysis revealed two groups, one composed exclusively of portions of fragmented forest. Fragments and continuous forest differed in species composition, but were similar in structure. Diameter distribution in fragments was similar to that of primary forests. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-06-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672017000200111 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672017000200111 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1809-4392201601923 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Instituto Nacional de Pesquisas da Amazônia |
publisher.none.fl_str_mv |
Instituto Nacional de Pesquisas da Amazônia |
dc.source.none.fl_str_mv |
Acta Amazonica v.47 n.2 2017 reponame:Acta Amazonica instname:Instituto Nacional de Pesquisas da Amazônia (INPA) instacron:INPA |
instname_str |
Instituto Nacional de Pesquisas da Amazônia (INPA) |
instacron_str |
INPA |
institution |
INPA |
reponame_str |
Acta Amazonica |
collection |
Acta Amazonica |
repository.name.fl_str_mv |
Acta Amazonica - Instituto Nacional de Pesquisas da Amazônia (INPA) |
repository.mail.fl_str_mv |
acta@inpa.gov.br||acta@inpa.gov.br |
_version_ |
1752129840440410112 |