The efficiency of bees in pollinating ephemeral flowers of Jacquemontia bracteosa (Convolvulaceae)
ABSTRACT The family Convolvulaceae is widely distributed in tropical regions, mainly in open areas. Convolvulaceae flowers are characterized mainly by being beautiful and ephemeral, attracting many flower visitors that belong to different taxonomic groups. This work aimed to investigate the interact...
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doaj-4223c1e2a1b349918cc1cc89466ec5e02020-11-24T23:30:21ZengFundação Zoobotânica do Rio Grande do SulIheringia: Série Zoologia1678-4766106010.1590/1678-4766e2016025S0073-47212016000100225The efficiency of bees in pollinating ephemeral flowers of Jacquemontia bracteosa (Convolvulaceae)Sílvia K. D. SantosMiriam GimenesABSTRACT The family Convolvulaceae is widely distributed in tropical regions, mainly in open areas. Convolvulaceae flowers are characterized mainly by being beautiful and ephemeral, attracting many flower visitors that belong to different taxonomic groups. This work aimed to investigate the interactions between insects and flowers of Jacquemontia bracteosa (Convolvulaceae), focusing on the pollination efficiency, in an area in the Brazilian semiarid. From November 2011 to October 2012, floral biology of J. bracteosa was investigated as well as the flower visit frequency, behavior, and morphology of floral visitors. The flowers of J. bracteosa are white, showy and open early in the morning, lasting less than 12 hours, with fruiting occurring both by selfing and outcrossing fecundation. A total of 337 specimens insects were collected on J. bracteosa flowers during the field observations. The Neotropical bee, Ancyloscelis apiformis, was considered the most efficient pollinator of J. bracteosa. This bee showed appropriate behavior, high frequency (64% of the total sample), and was constant on the flowers. Furthermore, they arrived soon when the flowers began to open and presented 90% of efficiency in tests of flower pollination of J. bracteosa. Other native bee species also visited the flowers of J. bracteosa and may be considered potential pollinators because they presented behavior and morphology compatible with the flowers. This study suggests that maintenance of weeds or ruderal plants, especially those that also have ornamental potential in anthropic area, may be an option for the preservation of local native pollinators, which are threatened by environmental degradation.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212016000100225&lng=en&tlng=enPollinationAncyloscelis apiformisAugochloraJacquemontia bracteosaApoidea |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Sílvia K. D. Santos Miriam Gimenes |
spellingShingle |
Sílvia K. D. Santos Miriam Gimenes The efficiency of bees in pollinating ephemeral flowers of Jacquemontia bracteosa (Convolvulaceae) Iheringia: Série Zoologia Pollination Ancyloscelis apiformis Augochlora Jacquemontia bracteosa Apoidea |
author_facet |
Sílvia K. D. Santos Miriam Gimenes |
author_sort |
Sílvia K. D. Santos |
title |
The efficiency of bees in pollinating ephemeral flowers of Jacquemontia bracteosa (Convolvulaceae) |
title_short |
The efficiency of bees in pollinating ephemeral flowers of Jacquemontia bracteosa (Convolvulaceae) |
title_full |
The efficiency of bees in pollinating ephemeral flowers of Jacquemontia bracteosa (Convolvulaceae) |
title_fullStr |
The efficiency of bees in pollinating ephemeral flowers of Jacquemontia bracteosa (Convolvulaceae) |
title_full_unstemmed |
The efficiency of bees in pollinating ephemeral flowers of Jacquemontia bracteosa (Convolvulaceae) |
title_sort |
efficiency of bees in pollinating ephemeral flowers of jacquemontia bracteosa (convolvulaceae) |
publisher |
Fundação Zoobotânica do Rio Grande do Sul |
series |
Iheringia: Série Zoologia |
issn |
1678-4766 |
description |
ABSTRACT The family Convolvulaceae is widely distributed in tropical regions, mainly in open areas. Convolvulaceae flowers are characterized mainly by being beautiful and ephemeral, attracting many flower visitors that belong to different taxonomic groups. This work aimed to investigate the interactions between insects and flowers of Jacquemontia bracteosa (Convolvulaceae), focusing on the pollination efficiency, in an area in the Brazilian semiarid. From November 2011 to October 2012, floral biology of J. bracteosa was investigated as well as the flower visit frequency, behavior, and morphology of floral visitors. The flowers of J. bracteosa are white, showy and open early in the morning, lasting less than 12 hours, with fruiting occurring both by selfing and outcrossing fecundation. A total of 337 specimens insects were collected on J. bracteosa flowers during the field observations. The Neotropical bee, Ancyloscelis apiformis, was considered the most efficient pollinator of J. bracteosa. This bee showed appropriate behavior, high frequency (64% of the total sample), and was constant on the flowers. Furthermore, they arrived soon when the flowers began to open and presented 90% of efficiency in tests of flower pollination of J. bracteosa. Other native bee species also visited the flowers of J. bracteosa and may be considered potential pollinators because they presented behavior and morphology compatible with the flowers. This study suggests that maintenance of weeds or ruderal plants, especially those that also have ornamental potential in anthropic area, may be an option for the preservation of local native pollinators, which are threatened by environmental degradation. |
topic |
Pollination Ancyloscelis apiformis Augochlora Jacquemontia bracteosa Apoidea |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212016000100225&lng=en&tlng=en |
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