Structure and dynamics of a Cariniana estrellensis (Lecythidaceae) population in a fragment of Atlantic Forest in Minas Gerais, Brazil

Detalhes bibliográficos
Autor(a) principal: Nunes,Yule Roberta Ferreira
Data de Publicação: 2012
Outros Autores: Petrere Jr.,Miguel
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Rodriguésia (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2175-78602012000200002
Resumo: We aimed to describe population structure and dynamics of Cariniana estrellensis (Raddi) Kuntze to test the hypothesis that this species survives in the forest by forming a seedling bank. We evaluated seed germination, spatial distribution, and recruitment, growth and mortality rates of young individuals. To characterize population structure a 1.2-ha plot was defined, where reproductive adults were mapped; also 100 6 m² sub-plots were established to characterize structure and monitor dynamics of young individuals. We estimated seed production using seed collectors and determined the percentage of canopy cover by hemispherical photographs. Seed rain and saplings showed clustered distribution indicating habitat-patch formation. Sapling mortality occurred mainly during the initial establishment phase. Size structure was characterized by many saplings (X = 9,763 individuals ha-1) and few adults (X = 5 individuals ha-1), associated with a high rate of seed production (X = 60,800 seeds ha-1), low growth rates (X = 2.37 cm ano-1) and mortality (15.66%) of established saplings, showing that species invest in seedling bank formation as a reproductive strategy.
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spelling Structure and dynamics of a Cariniana estrellensis (Lecythidaceae) population in a fragment of Atlantic Forest in Minas Gerais, Brazilseedling bankgrowthmortalitycanopy cover"jequitibá"We aimed to describe population structure and dynamics of Cariniana estrellensis (Raddi) Kuntze to test the hypothesis that this species survives in the forest by forming a seedling bank. We evaluated seed germination, spatial distribution, and recruitment, growth and mortality rates of young individuals. To characterize population structure a 1.2-ha plot was defined, where reproductive adults were mapped; also 100 6 m² sub-plots were established to characterize structure and monitor dynamics of young individuals. We estimated seed production using seed collectors and determined the percentage of canopy cover by hemispherical photographs. Seed rain and saplings showed clustered distribution indicating habitat-patch formation. Sapling mortality occurred mainly during the initial establishment phase. Size structure was characterized by many saplings (X = 9,763 individuals ha-1) and few adults (X = 5 individuals ha-1), associated with a high rate of seed production (X = 60,800 seeds ha-1), low growth rates (X = 2.37 cm ano-1) and mortality (15.66%) of established saplings, showing that species invest in seedling bank formation as a reproductive strategy.Instituto de Pesquisas Jardim Botânico do Rio de Janeiro2012-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2175-78602012000200002Rodriguésia v.63 n.2 2012reponame:Rodriguésia (Online)instname:Instituto de Pesquisas Jardim Botânico do Rio de Janeiro (JBRJ)instacron:JBRJ10.1590/S2175-78602012000200002info:eu-repo/semantics/openAccessNunes,Yule Roberta FerreiraPetrere Jr.,Migueleng2013-01-31T00:00:00Zoai:scielo:S2175-78602012000200002Revistahttp://rodriguesia.jbrj.gov.br/https://old.scielo.br/oai/scielo-oai.phprodriguesia@jbrj.gov.br2175-78600370-6583opendoar:2013-01-31T00:00Rodriguésia (Online) - Instituto de Pesquisas Jardim Botânico do Rio de Janeiro (JBRJ)false
dc.title.none.fl_str_mv Structure and dynamics of a Cariniana estrellensis (Lecythidaceae) population in a fragment of Atlantic Forest in Minas Gerais, Brazil
title Structure and dynamics of a Cariniana estrellensis (Lecythidaceae) population in a fragment of Atlantic Forest in Minas Gerais, Brazil
spellingShingle Structure and dynamics of a Cariniana estrellensis (Lecythidaceae) population in a fragment of Atlantic Forest in Minas Gerais, Brazil
Nunes,Yule Roberta Ferreira
seedling bank
growth
mortality
canopy cover
"jequitibá"
title_short Structure and dynamics of a Cariniana estrellensis (Lecythidaceae) population in a fragment of Atlantic Forest in Minas Gerais, Brazil
title_full Structure and dynamics of a Cariniana estrellensis (Lecythidaceae) population in a fragment of Atlantic Forest in Minas Gerais, Brazil
title_fullStr Structure and dynamics of a Cariniana estrellensis (Lecythidaceae) population in a fragment of Atlantic Forest in Minas Gerais, Brazil
title_full_unstemmed Structure and dynamics of a Cariniana estrellensis (Lecythidaceae) population in a fragment of Atlantic Forest in Minas Gerais, Brazil
title_sort Structure and dynamics of a Cariniana estrellensis (Lecythidaceae) population in a fragment of Atlantic Forest in Minas Gerais, Brazil
author Nunes,Yule Roberta Ferreira
author_facet Nunes,Yule Roberta Ferreira
Petrere Jr.,Miguel
author_role author
author2 Petrere Jr.,Miguel
author2_role author
dc.contributor.author.fl_str_mv Nunes,Yule Roberta Ferreira
Petrere Jr.,Miguel
dc.subject.por.fl_str_mv seedling bank
growth
mortality
canopy cover
"jequitibá"
topic seedling bank
growth
mortality
canopy cover
"jequitibá"
description We aimed to describe population structure and dynamics of Cariniana estrellensis (Raddi) Kuntze to test the hypothesis that this species survives in the forest by forming a seedling bank. We evaluated seed germination, spatial distribution, and recruitment, growth and mortality rates of young individuals. To characterize population structure a 1.2-ha plot was defined, where reproductive adults were mapped; also 100 6 m² sub-plots were established to characterize structure and monitor dynamics of young individuals. We estimated seed production using seed collectors and determined the percentage of canopy cover by hemispherical photographs. Seed rain and saplings showed clustered distribution indicating habitat-patch formation. Sapling mortality occurred mainly during the initial establishment phase. Size structure was characterized by many saplings (X = 9,763 individuals ha-1) and few adults (X = 5 individuals ha-1), associated with a high rate of seed production (X = 60,800 seeds ha-1), low growth rates (X = 2.37 cm ano-1) and mortality (15.66%) of established saplings, showing that species invest in seedling bank formation as a reproductive strategy.
publishDate 2012
dc.date.none.fl_str_mv 2012-06-01
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=S2175-78602012000200002
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2175-78602012000200002
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S2175-78602012000200002
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 de Pesquisas Jardim Botânico do Rio de Janeiro
publisher.none.fl_str_mv Instituto de Pesquisas Jardim Botânico do Rio de Janeiro
dc.source.none.fl_str_mv Rodriguésia v.63 n.2 2012
reponame:Rodriguésia (Online)
instname:Instituto de Pesquisas Jardim Botânico do Rio de Janeiro (JBRJ)
instacron:JBRJ
instname_str Instituto de Pesquisas Jardim Botânico do Rio de Janeiro (JBRJ)
instacron_str JBRJ
institution JBRJ
reponame_str Rodriguésia (Online)
collection Rodriguésia (Online)
repository.name.fl_str_mv Rodriguésia (Online) - Instituto de Pesquisas Jardim Botânico do Rio de Janeiro (JBRJ)
repository.mail.fl_str_mv rodriguesia@jbrj.gov.br
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