Flower characteristics and visitors of Merremia macrocalyx (Convolvulaceae) in the Chapada Diamantina, Bahia, Brazil

Detalhes bibliográficos
Autor(a) principal: Neves, Edinaldo Luz das
Data de Publicação: 2006
Outros Autores: Taki, Hisatomo, Silva, Fabiana O. da, Viana, Blandina Felipe, Kevan, Peter G.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://www.repositorio.ufba.br/ri/handle/ri/2436
Resumo: p. 97-102
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spelling Neves, Edinaldo Luz dasTaki, HisatomoSilva, Fabiana O. daViana, Blandina FelipeKevan, Peter G.Neves, Edinaldo Luz dasTaki, HisatomoSilva, Fabiana O. daViana, Blandina FelipeKevan, Peter G.2011-08-31T12:35:23Z2011-08-31T12:35:23Z20061676-6180http://www.repositorio.ufba.br/ri/handle/ri/24367(2)p. 97-102Merremia macrocalyx (Ruiz & Pav.) O’ Donell (Convolvulaceae) is a common, native herb in open grasslands (Campos Gerais) of northeastern Brazil. At Pai Inácio Mountain, Chapada Diamantina, Bahia, Brazil (12º 27´41”S, 41º 28’ 34”W), we made daily observations from 6:30 a.m. until 5:30 p.m. from 25 April to 29 April, 2003 and on May 31, 2005. The stereomorphic corolla of the weakly scented flowers was 4.04 mm mean diameter, tube depth was 3.12 mm, and the mean diameter of the gullet was 1.17 mm. Anthesis is diurnal, between 06:30 a.m. and 07:45 a.m. and floral longevity varied between 9-10 h. Nectar secretion occurred from 7:00 a.m. to 11:00 a.m., and the standing crop of nectar per flower increased from 0.67 ml (7:00 a.m.) to 2.5 ml (09:00 a.m.) then declining. The nectar sugar concentration was low (22%). Bees were the most frequent visitors, and were classified into six morpho-functional categories. Their daily foraging pattern was synchronized with nectar availability, being concentrated between 8:30 and 10:30 a.m. The clumped distribution of the plants, flower size and easily accessible nectar all stimulate visitation, especially by generalist bee species. Eusocial bees (A. mellifera, Geotrigona mombuca and Bombus morio) and the solitary bee Euplusia nigrohirta (Friese, 1899) were the most frequent on the flowers and are the most likely potential pollinators, as suggested by their contact with floral reproductive structures and adhesion of pollen to their bodies.Submitted by Ana Valéria de Jesus Moura (anavaleria_131@hotmail.com) on 2011-08-31T12:35:23Z No. of bitstreams: 1 2007%20Merremia%20P%c3%a1gina%2097-102%20Lundiana%207-21.pdf: 334520 bytes, checksum: 7af6daa9a37911f18d824ff74673b268 (MD5)Made available in DSpace on 2011-08-31T12:35:23Z (GMT). No. of bitstreams: 1 2007%20Merremia%20P%c3%a1gina%2097-102%20Lundiana%207-21.pdf: 334520 bytes, checksum: 7af6daa9a37911f18d824ff74673b268 (MD5) Previous issue date: 2006Merremia macrocalyx. Apoidea lower biology. Pollination. 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dc.title.pt_BR.fl_str_mv Flower characteristics and visitors of Merremia macrocalyx (Convolvulaceae) in the Chapada Diamantina, Bahia, Brazil
dc.title.alternative.pt_BR.fl_str_mv Lundiana
title Flower characteristics and visitors of Merremia macrocalyx (Convolvulaceae) in the Chapada Diamantina, Bahia, Brazil
spellingShingle Flower characteristics and visitors of Merremia macrocalyx (Convolvulaceae) in the Chapada Diamantina, Bahia, Brazil
Neves, Edinaldo Luz das
Merremia macrocalyx. Apoidea lower biology. Pollination. Bees
title_short Flower characteristics and visitors of Merremia macrocalyx (Convolvulaceae) in the Chapada Diamantina, Bahia, Brazil
title_full Flower characteristics and visitors of Merremia macrocalyx (Convolvulaceae) in the Chapada Diamantina, Bahia, Brazil
title_fullStr Flower characteristics and visitors of Merremia macrocalyx (Convolvulaceae) in the Chapada Diamantina, Bahia, Brazil
title_full_unstemmed Flower characteristics and visitors of Merremia macrocalyx (Convolvulaceae) in the Chapada Diamantina, Bahia, Brazil
title_sort Flower characteristics and visitors of Merremia macrocalyx (Convolvulaceae) in the Chapada Diamantina, Bahia, Brazil
author Neves, Edinaldo Luz das
author_facet Neves, Edinaldo Luz das
Taki, Hisatomo
Silva, Fabiana O. da
Viana, Blandina Felipe
Kevan, Peter G.
author_role author
author2 Taki, Hisatomo
Silva, Fabiana O. da
Viana, Blandina Felipe
Kevan, Peter G.
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Neves, Edinaldo Luz das
Taki, Hisatomo
Silva, Fabiana O. da
Viana, Blandina Felipe
Kevan, Peter G.
Neves, Edinaldo Luz das
Taki, Hisatomo
Silva, Fabiana O. da
Viana, Blandina Felipe
Kevan, Peter G.
dc.subject.por.fl_str_mv Merremia macrocalyx. Apoidea lower biology. Pollination. Bees
topic Merremia macrocalyx. Apoidea lower biology. Pollination. Bees
description p. 97-102
publishDate 2006
dc.date.issued.fl_str_mv 2006
dc.date.accessioned.fl_str_mv 2011-08-31T12:35:23Z
dc.date.available.fl_str_mv 2011-08-31T12:35:23Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.repositorio.ufba.br/ri/handle/ri/2436
dc.identifier.issn.none.fl_str_mv 1676-6180
dc.identifier.number.pt_BR.fl_str_mv 7(2)
identifier_str_mv 1676-6180
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