Effects of an accidental dry-season fire on the reproductive phenology of two Neotropical savanna shrubs
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Journal of Biology |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842018000300564 |
Resumo: | Abstract Fire is a recurrent disturbance in savanna vegetation and savanna species are adapted to it. Even so, fire may affect various aspects of plant ecology, including phenology. We studied the effects of a spatially heterogeneous fire on the reproductive phenology of two dominant woody plant species, Miconia albicans (Melastomataceae) and Schefflera vinosa (Araliaceae), in a savanna area in South-eastern Brazil. The study site was partially burnt by a dry-season accidental fire in August 2006, and we monitored the phenolology of 30 burnt and 30 unburnt individuals of each species between September 2007 and September 2008. We used restricted randomizations to assess phenological differences between the burnt and unburnt individuals. Fire had negative effects on the phenology of M. albicans, with a smaller production of reproductive structures in general and of floral buds, total fruits, and ripe fruits in burnt plants. All unburnt but only 16% of the burnt M. albicans plants produced ripe fruits during the study. Fire effects on S. vinosa were smaller, but there was a greater production of floral buds and fruits (but not ripe fruits) by burnt plants; approximately 90% of the individuals of S. vinosa produced ripe fruits during the study, regardless of having been burnt or not. The differences between the two species may be related to S. vinosa’s faster growth and absence from the seed bank at the study site, whereas M. albicans grows more slowly and is dominant in the seed bank. |
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Effects of an accidental dry-season fire on the reproductive phenology of two Neotropical savanna shrubsCerradofloweringfruitingMiconia albicansSchefflera vinosawoody plantsAbstract Fire is a recurrent disturbance in savanna vegetation and savanna species are adapted to it. Even so, fire may affect various aspects of plant ecology, including phenology. We studied the effects of a spatially heterogeneous fire on the reproductive phenology of two dominant woody plant species, Miconia albicans (Melastomataceae) and Schefflera vinosa (Araliaceae), in a savanna area in South-eastern Brazil. The study site was partially burnt by a dry-season accidental fire in August 2006, and we monitored the phenolology of 30 burnt and 30 unburnt individuals of each species between September 2007 and September 2008. We used restricted randomizations to assess phenological differences between the burnt and unburnt individuals. Fire had negative effects on the phenology of M. albicans, with a smaller production of reproductive structures in general and of floral buds, total fruits, and ripe fruits in burnt plants. All unburnt but only 16% of the burnt M. albicans plants produced ripe fruits during the study. Fire effects on S. vinosa were smaller, but there was a greater production of floral buds and fruits (but not ripe fruits) by burnt plants; approximately 90% of the individuals of S. vinosa produced ripe fruits during the study, regardless of having been burnt or not. The differences between the two species may be related to S. vinosa’s faster growth and absence from the seed bank at the study site, whereas M. albicans grows more slowly and is dominant in the seed bank.Instituto Internacional de Ecologia2018-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842018000300564Brazilian Journal of Biology v.78 n.3 2018reponame:Brazilian Journal of Biologyinstname:Instituto Internacional de Ecologia (IIE)instacron:IIE10.1590/1519-6984.174660info:eu-repo/semantics/openAccessDodonov,P.Zanelli,C. B.Silva-Matos,D. M.eng2018-07-03T00:00:00Zoai:scielo:S1519-69842018000300564Revistahttps://www.scielo.br/j/bjb/https://old.scielo.br/oai/scielo-oai.phpbjb@bjb.com.br||bjb@bjb.com.br1678-43751519-6984opendoar:2018-07-03T00:00Brazilian Journal of Biology - Instituto Internacional de Ecologia (IIE)false |
dc.title.none.fl_str_mv |
Effects of an accidental dry-season fire on the reproductive phenology of two Neotropical savanna shrubs |
title |
Effects of an accidental dry-season fire on the reproductive phenology of two Neotropical savanna shrubs |
spellingShingle |
Effects of an accidental dry-season fire on the reproductive phenology of two Neotropical savanna shrubs Dodonov,P. Cerrado flowering fruiting Miconia albicans Schefflera vinosa woody plants |
title_short |
Effects of an accidental dry-season fire on the reproductive phenology of two Neotropical savanna shrubs |
title_full |
Effects of an accidental dry-season fire on the reproductive phenology of two Neotropical savanna shrubs |
title_fullStr |
Effects of an accidental dry-season fire on the reproductive phenology of two Neotropical savanna shrubs |
title_full_unstemmed |
Effects of an accidental dry-season fire on the reproductive phenology of two Neotropical savanna shrubs |
title_sort |
Effects of an accidental dry-season fire on the reproductive phenology of two Neotropical savanna shrubs |
author |
Dodonov,P. |
author_facet |
Dodonov,P. Zanelli,C. B. Silva-Matos,D. M. |
author_role |
author |
author2 |
Zanelli,C. B. Silva-Matos,D. M. |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Dodonov,P. Zanelli,C. B. Silva-Matos,D. M. |
dc.subject.por.fl_str_mv |
Cerrado flowering fruiting Miconia albicans Schefflera vinosa woody plants |
topic |
Cerrado flowering fruiting Miconia albicans Schefflera vinosa woody plants |
description |
Abstract Fire is a recurrent disturbance in savanna vegetation and savanna species are adapted to it. Even so, fire may affect various aspects of plant ecology, including phenology. We studied the effects of a spatially heterogeneous fire on the reproductive phenology of two dominant woody plant species, Miconia albicans (Melastomataceae) and Schefflera vinosa (Araliaceae), in a savanna area in South-eastern Brazil. The study site was partially burnt by a dry-season accidental fire in August 2006, and we monitored the phenolology of 30 burnt and 30 unburnt individuals of each species between September 2007 and September 2008. We used restricted randomizations to assess phenological differences between the burnt and unburnt individuals. Fire had negative effects on the phenology of M. albicans, with a smaller production of reproductive structures in general and of floral buds, total fruits, and ripe fruits in burnt plants. All unburnt but only 16% of the burnt M. albicans plants produced ripe fruits during the study. Fire effects on S. vinosa were smaller, but there was a greater production of floral buds and fruits (but not ripe fruits) by burnt plants; approximately 90% of the individuals of S. vinosa produced ripe fruits during the study, regardless of having been burnt or not. The differences between the two species may be related to S. vinosa’s faster growth and absence from the seed bank at the study site, whereas M. albicans grows more slowly and is dominant in the seed bank. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-12-01 |
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=S1519-69842018000300564 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842018000300564 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1519-6984.174660 |
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 Internacional de Ecologia |
publisher.none.fl_str_mv |
Instituto Internacional de Ecologia |
dc.source.none.fl_str_mv |
Brazilian Journal of Biology v.78 n.3 2018 reponame:Brazilian Journal of Biology instname:Instituto Internacional de Ecologia (IIE) instacron:IIE |
instname_str |
Instituto Internacional de Ecologia (IIE) |
instacron_str |
IIE |
institution |
IIE |
reponame_str |
Brazilian Journal of Biology |
collection |
Brazilian Journal of Biology |
repository.name.fl_str_mv |
Brazilian Journal of Biology - Instituto Internacional de Ecologia (IIE) |
repository.mail.fl_str_mv |
bjb@bjb.com.br||bjb@bjb.com.br |
_version_ |
1752129884936732672 |