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Fenologia da copaíba (Copaifera langsdorffii Desf. -- Leguminosae, Caesalpinioideae) em uma floresta semidecídua no sudeste do Brasil

Plant phenology is concerned with the timing of recurring events, and is poorly known for tropical forest species, although this ecosystem has the greatest diversity of phenological patterns. A phenological study was carried out from February/1991 to April/1993. Thirty six trees were systematically...

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Main Authors: PEDRONI, FERNANDO, SANCHEZ, MARYLAND, SANTOS, FLAVIO A.M.
Format: Artigo
Language: Portuguese
Published: Sociedade Botânica de São Paulo 2017
Subjects:
Seasonality
leaf fall
leaf flushing
flowering
fruiting
Online Access: http://repositorio.unb.br/handle/10482/25870
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spelling ir-10482-258702019-03-28T14:04:31Z Fenologia da copaíba (Copaifera langsdorffii Desf. -- Leguminosae, Caesalpinioideae) em uma floresta semidecídua no sudeste do Brasil Phenology of copaíba (Copaifera langsdorffii Desf. -- Leguminosae, Caesalpinioideae) in a semideciduous forest, southeastern Brazil PEDRONI, FERNANDO SANCHEZ, MARYLAND SANTOS, FLAVIO A.M. Seasonality leaf fall leaf flushing flowering fruiting Plant phenology is concerned with the timing of recurring events, and is poorly known for tropical forest species, although this ecosystem has the greatest diversity of phenological patterns. A phenological study was carried out from February/1991 to April/1993. Thirty six trees were systematically observed biweekly for changes on leaf fall, leaf flushing, flowering and fruiting. Leaf fall and flushing were synchronized phases. These events always occurred at the end of dry season (leaf fall) and start of rainy season (leaf flushing) being clearly related with precipitation. The flowering occurred in the rainy season, and fruiting during the dry season. Fruiting did not show an annual cycle, but years which massive fruiting being followed by non productive years. Other non climatic factors, like seed dispersers and seed predators were also likely to affect fruiting. A fenologia da emissão foliar, floração e frutificação para espécies de florestas tropicais é pouco conhecida, embora estes ecossistemas apresentem grande diversidade de padrões fenológicos. Foi estudada, de fevereiro de 1991 a abril de 1993, a fenologia da copaíba (Copaifera langsdorffii Desf.) na Reserva de Santa Genebra. Foram feitas observações em 36 indivíduos e analisadas queda de folhas, brotamento, floração e frutificação. A queda de folhas e o brotamento foram as fenofases mais sincronizadas dentro da população. Estes eventos ocorreram no final da estação seca (queda de folhas) e início da estação chuvosa (brotamento) e foram relacionados principalmente com a precipitação. A floração ocorreu na estação chuvosa e a frutificação na estação seca. A frutificação ocorreu em ciclos supra-anuais, com anos de produção intensa seguidos de anos sem frutificação. Além dos fatores climáticos, as interações com dispersores e predadores de sementes também parecem influenciar o padrão de frutificação observado em Copaifera langsdorffii. 2017-12-07T04:35:40Z 2017-12-07T04:35:40Z 2002 Artigo Rev. bras. Bot.,v.25,n.2,p.183-194,2002 0100-8404 http://repositorio.unb.br/handle/10482/25870 10.1590/S0100-84042002000200007 pt Acesso Aberto application/pdf Sociedade Botânica de São Paulo http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042002000200007&lng=en&nrm=iso http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0100-84042002000200007&lng=en&nrm=iso http://www.scielo.br/scielo.php?script=sci_pdf&pid=S0100-84042002000200007&lng=en&nrm=iso
institution REPOSITORIO UNB
collection REPOSITORIO UNB
language Portuguese
topic Seasonality
leaf fall
leaf flushing
flowering
fruiting
spellingShingle Seasonality
leaf fall
leaf flushing
flowering
fruiting
PEDRONI, FERNANDO
SANCHEZ, MARYLAND
SANTOS, FLAVIO A.M.
Fenologia da copaíba (Copaifera langsdorffii Desf. -- Leguminosae, Caesalpinioideae) em uma floresta semidecídua no sudeste do Brasil
description Plant phenology is concerned with the timing of recurring events, and is poorly known for tropical forest species, although this ecosystem has the greatest diversity of phenological patterns. A phenological study was carried out from February/1991 to April/1993. Thirty six trees were systematically observed biweekly for changes on leaf fall, leaf flushing, flowering and fruiting. Leaf fall and flushing were synchronized phases. These events always occurred at the end of dry season (leaf fall) and start of rainy season (leaf flushing) being clearly related with precipitation. The flowering occurred in the rainy season, and fruiting during the dry season. Fruiting did not show an annual cycle, but years which massive fruiting being followed by non productive years. Other non climatic factors, like seed dispersers and seed predators were also likely to affect fruiting.
format Artigo
author PEDRONI, FERNANDO
SANCHEZ, MARYLAND
SANTOS, FLAVIO A.M.
author_sort PEDRONI, FERNANDO
title Fenologia da copaíba (Copaifera langsdorffii Desf. -- Leguminosae, Caesalpinioideae) em uma floresta semidecídua no sudeste do Brasil
title_short Fenologia da copaíba (Copaifera langsdorffii Desf. -- Leguminosae, Caesalpinioideae) em uma floresta semidecídua no sudeste do Brasil
title_full Fenologia da copaíba (Copaifera langsdorffii Desf. -- Leguminosae, Caesalpinioideae) em uma floresta semidecídua no sudeste do Brasil
title_fullStr Fenologia da copaíba (Copaifera langsdorffii Desf. -- Leguminosae, Caesalpinioideae) em uma floresta semidecídua no sudeste do Brasil
title_full_unstemmed Fenologia da copaíba (Copaifera langsdorffii Desf. -- Leguminosae, Caesalpinioideae) em uma floresta semidecídua no sudeste do Brasil
title_sort fenologia da copaíba (copaifera langsdorffii desf. -- leguminosae, caesalpinioideae) em uma floresta semidecídua no sudeste do brasil
publisher Sociedade Botânica de São Paulo
publishDate 2017
url http://repositorio.unb.br/handle/10482/25870
_version_ 1641988174961967104
score 13.657419

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