Juvenile dynamics of the endemic and rare Enterolobium glaziovii Benth. (Mimosaceae) around reproductive trees in the Atlantic forest, Brazil

Detalhes bibliográficos
Autor(a) principal: Ramos,Flavio N.
Data de Publicação: 2005
Outros Autores: Silvia-Matos,Dalva M., Santos,Flavio A. Maës dos
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Journal of Botany
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042005000400011
Resumo: Studies on the regeneration and seedling mortality of rare tree species are important, but scarce. The aim of this study was to investigate the annual variation in recruitment, growth and mortality of juveniles of Enterolobium glaziovii Benth., a rare tree species from the Brazilian Atlantic Rain Forest. All seedlings and juveniles around four reproductive trees were labeled and their fate was followed from 1996 to 1999. There were no annual differences in juveniles' recruitment below and beyond the parental crown, but juveniles' survival and growth were lower below than beyond of the parental tree crowns. Small individuals (< 15 cm tall) showed the greatest mortality and the lowest growth, followed by medium (from 15 to 50 cm tall) and large ones (> 50 cm tall). Large juveniles were more widely dispersed from the conspecific parental tree than were medium and small ones. This suggests that distance dependent mortality of juveniles mediated by the parental tree is an important cause of spacing shifts associated with the growth of small individuals of E. glaziovii into large ones. Widely dispersed juveniles may escape the high mortality associated with pathogens, herbivores or seed predators concentrated around adult conspecifics. The negative influence of the parental tree on its juveniles may explain the sparse distribution of its adults in the forest.
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spelling Juvenile dynamics of the endemic and rare Enterolobium glaziovii Benth. (Mimosaceae) around reproductive trees in the Atlantic forest, Brazilconspecific influencedistance-dependent mortalitygrowthshade tolerancesize-dependent mortalityStudies on the regeneration and seedling mortality of rare tree species are important, but scarce. The aim of this study was to investigate the annual variation in recruitment, growth and mortality of juveniles of Enterolobium glaziovii Benth., a rare tree species from the Brazilian Atlantic Rain Forest. All seedlings and juveniles around four reproductive trees were labeled and their fate was followed from 1996 to 1999. There were no annual differences in juveniles' recruitment below and beyond the parental crown, but juveniles' survival and growth were lower below than beyond of the parental tree crowns. Small individuals (< 15 cm tall) showed the greatest mortality and the lowest growth, followed by medium (from 15 to 50 cm tall) and large ones (> 50 cm tall). Large juveniles were more widely dispersed from the conspecific parental tree than were medium and small ones. This suggests that distance dependent mortality of juveniles mediated by the parental tree is an important cause of spacing shifts associated with the growth of small individuals of E. glaziovii into large ones. Widely dispersed juveniles may escape the high mortality associated with pathogens, herbivores or seed predators concentrated around adult conspecifics. The negative influence of the parental tree on its juveniles may explain the sparse distribution of its adults in the forest.Sociedade Botânica de São Paulo2005-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042005000400011Brazilian Journal of Botany v.28 n.4 2005reponame:Brazilian Journal of Botanyinstname:Sociedade Botânica de São Paulo (SBSP)instacron:SBSP10.1590/S0100-84042005000400011info:eu-repo/semantics/openAccessRamos,Flavio N.Silvia-Matos,Dalva M.Santos,Flavio A. Maës doseng2006-08-01T00:00:00Zoai:scielo:S0100-84042005000400011Revistahttps://www.scielo.br/j/rbb/ONGhttps://old.scielo.br/oai/scielo-oai.phpbrazbot@gmail.com||brazbot@gmail.com1806-99590100-8404opendoar:2006-08-01T00:00Brazilian Journal of Botany - Sociedade Botânica de São Paulo (SBSP)false
dc.title.none.fl_str_mv Juvenile dynamics of the endemic and rare Enterolobium glaziovii Benth. (Mimosaceae) around reproductive trees in the Atlantic forest, Brazil
title Juvenile dynamics of the endemic and rare Enterolobium glaziovii Benth. (Mimosaceae) around reproductive trees in the Atlantic forest, Brazil
spellingShingle Juvenile dynamics of the endemic and rare Enterolobium glaziovii Benth. (Mimosaceae) around reproductive trees in the Atlantic forest, Brazil
Ramos,Flavio N.
conspecific influence
distance-dependent mortality
growth
shade tolerance
size-dependent mortality
title_short Juvenile dynamics of the endemic and rare Enterolobium glaziovii Benth. (Mimosaceae) around reproductive trees in the Atlantic forest, Brazil
title_full Juvenile dynamics of the endemic and rare Enterolobium glaziovii Benth. (Mimosaceae) around reproductive trees in the Atlantic forest, Brazil
title_fullStr Juvenile dynamics of the endemic and rare Enterolobium glaziovii Benth. (Mimosaceae) around reproductive trees in the Atlantic forest, Brazil
title_full_unstemmed Juvenile dynamics of the endemic and rare Enterolobium glaziovii Benth. (Mimosaceae) around reproductive trees in the Atlantic forest, Brazil
title_sort Juvenile dynamics of the endemic and rare Enterolobium glaziovii Benth. (Mimosaceae) around reproductive trees in the Atlantic forest, Brazil
author Ramos,Flavio N.
author_facet Ramos,Flavio N.
Silvia-Matos,Dalva M.
Santos,Flavio A. Maës dos
author_role author
author2 Silvia-Matos,Dalva M.
Santos,Flavio A. Maës dos
author2_role author
author
dc.contributor.author.fl_str_mv Ramos,Flavio N.
Silvia-Matos,Dalva M.
Santos,Flavio A. Maës dos
dc.subject.por.fl_str_mv conspecific influence
distance-dependent mortality
growth
shade tolerance
size-dependent mortality
topic conspecific influence
distance-dependent mortality
growth
shade tolerance
size-dependent mortality
description Studies on the regeneration and seedling mortality of rare tree species are important, but scarce. The aim of this study was to investigate the annual variation in recruitment, growth and mortality of juveniles of Enterolobium glaziovii Benth., a rare tree species from the Brazilian Atlantic Rain Forest. All seedlings and juveniles around four reproductive trees were labeled and their fate was followed from 1996 to 1999. There were no annual differences in juveniles' recruitment below and beyond the parental crown, but juveniles' survival and growth were lower below than beyond of the parental tree crowns. Small individuals (< 15 cm tall) showed the greatest mortality and the lowest growth, followed by medium (from 15 to 50 cm tall) and large ones (> 50 cm tall). Large juveniles were more widely dispersed from the conspecific parental tree than were medium and small ones. This suggests that distance dependent mortality of juveniles mediated by the parental tree is an important cause of spacing shifts associated with the growth of small individuals of E. glaziovii into large ones. Widely dispersed juveniles may escape the high mortality associated with pathogens, herbivores or seed predators concentrated around adult conspecifics. The negative influence of the parental tree on its juveniles may explain the sparse distribution of its adults in the forest.
publishDate 2005
dc.date.none.fl_str_mv 2005-12-01
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=S0100-84042005000400011
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042005000400011
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0100-84042005000400011
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 Sociedade Botânica de São Paulo
publisher.none.fl_str_mv Sociedade Botânica de São Paulo
dc.source.none.fl_str_mv Brazilian Journal of Botany v.28 n.4 2005
reponame:Brazilian Journal of Botany
instname:Sociedade Botânica de São Paulo (SBSP)
instacron:SBSP
instname_str Sociedade Botânica de São Paulo (SBSP)
instacron_str SBSP
institution SBSP
reponame_str Brazilian Journal of Botany
collection Brazilian Journal of Botany
repository.name.fl_str_mv Brazilian Journal of Botany - Sociedade Botânica de São Paulo (SBSP)
repository.mail.fl_str_mv brazbot@gmail.com||brazbot@gmail.com
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