I’ve been robbed! – Can changes in floral traits discourage bee pollination?

Detalhes bibliográficos
Autor(a) principal: de Souza, Camila Vaz [UNESP]
Data de Publicação: 2019
Outros Autores: Salvador, Maíra Vidor [UNESP], Tunes, Priscila [UNESP], Di Stasi, Luiz Claudio [UNESP], Guimarães, Elza [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1371/journal.pone.0225252
http://hdl.handle.net/11449/198167
Resumo: Some floral visitors collect nectar by piercing flower external whorls, acting as nectar robbers. They leave robbery vestiges, which can cause changes in floral characteristics, including physical and chemical signals that may influence flower recognition by pollinators. If pollinating bees associate these changes with absence or reduction in nectar volume, they can avoid these flowers, negatively affecting pollination. We aimed to investigate the effect of robbery on primary and secondary attractants. Additionally, we experimentally investigated if the visual signs present in robbed flowers affect the bee pollination of this plant species by discouraging pollinator visits. This study was performed in a very common pollinator-plant-cheaters system comprised by a bee-pollinated Bignoniaceae species and a nectar-robber bee that lands on the corolla tube and makes slits at its base during the nectar robbery. We experimentally isolated the effect of nectar consumption by this nectar-robber and investigated if the slits caused by the nectar-robbers affected the floral scent emission. In addition, we experimentally evaluated the effect of visual signs (slits) associated to the nectar robbery and the effect of nectar depletion on the pollination of Jacaranda caroba (Bignoniaceae). The robbers visited around 75% of the flowers throughout the day and removed significant amounts of nectar from them. However, the damages the robbers cause did not affect floral scent emission and we did not verify significant differences on pollen deposition neither when comparing flowers with slits and control nor when comparing flowers with and without nectar. We showed that even though nectar-robbers visually honestly signal the robbery and deplete high amounts of nectar, they did not affect pollinator visitation. These results showed that presumably antagonistic interactions might in fact not be so.
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spelling I’ve been robbed! – Can changes in floral traits discourage bee pollination?Some floral visitors collect nectar by piercing flower external whorls, acting as nectar robbers. They leave robbery vestiges, which can cause changes in floral characteristics, including physical and chemical signals that may influence flower recognition by pollinators. If pollinating bees associate these changes with absence or reduction in nectar volume, they can avoid these flowers, negatively affecting pollination. We aimed to investigate the effect of robbery on primary and secondary attractants. Additionally, we experimentally investigated if the visual signs present in robbed flowers affect the bee pollination of this plant species by discouraging pollinator visits. This study was performed in a very common pollinator-plant-cheaters system comprised by a bee-pollinated Bignoniaceae species and a nectar-robber bee that lands on the corolla tube and makes slits at its base during the nectar robbery. We experimentally isolated the effect of nectar consumption by this nectar-robber and investigated if the slits caused by the nectar-robbers affected the floral scent emission. In addition, we experimentally evaluated the effect of visual signs (slits) associated to the nectar robbery and the effect of nectar depletion on the pollination of Jacaranda caroba (Bignoniaceae). The robbers visited around 75% of the flowers throughout the day and removed significant amounts of nectar from them. However, the damages the robbers cause did not affect floral scent emission and we did not verify significant differences on pollen deposition neither when comparing flowers with slits and control nor when comparing flowers with and without nectar. We showed that even though nectar-robbers visually honestly signal the robbery and deplete high amounts of nectar, they did not affect pollinator visitation. These results showed that presumably antagonistic interactions might in fact not be so.Graduation Program in Biological Sciences Laboratory of Ecology and Evolution of Plant-Animal Interactions Department of Botany São Paulo State University (UNESP)Undergraduate Course in Biological Sciences Laboratory of Ecology and Evolution of Plant-Animal Interactions São Paulo State University (UNESP)Laboratory of Phytomedicine Pharmacology and Biotechnology Department of Pharmacology São Paulo State University (UNESP)Laboratory of Ecology and Evolution of Plant-Animal Interactions Department of Botany São Paulo State University (UNESP)Graduation Program in Biological Sciences Laboratory of Ecology and Evolution of Plant-Animal Interactions Department of Botany São Paulo State University (UNESP)Undergraduate Course in Biological Sciences Laboratory of Ecology and Evolution of Plant-Animal Interactions São Paulo State University (UNESP)Laboratory of Phytomedicine Pharmacology and Biotechnology Department of Pharmacology São Paulo State University (UNESP)Laboratory of Ecology and Evolution of Plant-Animal Interactions Department of Botany São Paulo State University (UNESP)Universidade Estadual Paulista (Unesp)de Souza, Camila Vaz [UNESP]Salvador, Maíra Vidor [UNESP]Tunes, Priscila [UNESP]Di Stasi, Luiz Claudio [UNESP]Guimarães, Elza [UNESP]2020-12-12T01:05:24Z2020-12-12T01:05:24Z2019-11-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1371/journal.pone.0225252PLoS ONE, v. 14, n. 11, 2019.1932-6203http://hdl.handle.net/11449/19816710.1371/journal.pone.02252522-s2.0-85075267410Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPLoS ONEinfo:eu-repo/semantics/openAccess2021-10-23T09:34:12Zoai:repositorio.unesp.br:11449/198167Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T23:20:37.982914Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv I’ve been robbed! – Can changes in floral traits discourage bee pollination?
title I’ve been robbed! – Can changes in floral traits discourage bee pollination?
spellingShingle I’ve been robbed! – Can changes in floral traits discourage bee pollination?
de Souza, Camila Vaz [UNESP]
title_short I’ve been robbed! – Can changes in floral traits discourage bee pollination?
title_full I’ve been robbed! – Can changes in floral traits discourage bee pollination?
title_fullStr I’ve been robbed! – Can changes in floral traits discourage bee pollination?
title_full_unstemmed I’ve been robbed! – Can changes in floral traits discourage bee pollination?
title_sort I’ve been robbed! – Can changes in floral traits discourage bee pollination?
author de Souza, Camila Vaz [UNESP]
author_facet de Souza, Camila Vaz [UNESP]
Salvador, Maíra Vidor [UNESP]
Tunes, Priscila [UNESP]
Di Stasi, Luiz Claudio [UNESP]
Guimarães, Elza [UNESP]
author_role author
author2 Salvador, Maíra Vidor [UNESP]
Tunes, Priscila [UNESP]
Di Stasi, Luiz Claudio [UNESP]
Guimarães, Elza [UNESP]
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv de Souza, Camila Vaz [UNESP]
Salvador, Maíra Vidor [UNESP]
Tunes, Priscila [UNESP]
Di Stasi, Luiz Claudio [UNESP]
Guimarães, Elza [UNESP]
description Some floral visitors collect nectar by piercing flower external whorls, acting as nectar robbers. They leave robbery vestiges, which can cause changes in floral characteristics, including physical and chemical signals that may influence flower recognition by pollinators. If pollinating bees associate these changes with absence or reduction in nectar volume, they can avoid these flowers, negatively affecting pollination. We aimed to investigate the effect of robbery on primary and secondary attractants. Additionally, we experimentally investigated if the visual signs present in robbed flowers affect the bee pollination of this plant species by discouraging pollinator visits. This study was performed in a very common pollinator-plant-cheaters system comprised by a bee-pollinated Bignoniaceae species and a nectar-robber bee that lands on the corolla tube and makes slits at its base during the nectar robbery. We experimentally isolated the effect of nectar consumption by this nectar-robber and investigated if the slits caused by the nectar-robbers affected the floral scent emission. In addition, we experimentally evaluated the effect of visual signs (slits) associated to the nectar robbery and the effect of nectar depletion on the pollination of Jacaranda caroba (Bignoniaceae). The robbers visited around 75% of the flowers throughout the day and removed significant amounts of nectar from them. However, the damages the robbers cause did not affect floral scent emission and we did not verify significant differences on pollen deposition neither when comparing flowers with slits and control nor when comparing flowers with and without nectar. We showed that even though nectar-robbers visually honestly signal the robbery and deplete high amounts of nectar, they did not affect pollinator visitation. These results showed that presumably antagonistic interactions might in fact not be so.
publishDate 2019
dc.date.none.fl_str_mv 2019-11-01
2020-12-12T01:05:24Z
2020-12-12T01:05:24Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1371/journal.pone.0225252
PLoS ONE, v. 14, n. 11, 2019.
1932-6203
http://hdl.handle.net/11449/198167
10.1371/journal.pone.0225252
2-s2.0-85075267410
url http://dx.doi.org/10.1371/journal.pone.0225252
http://hdl.handle.net/11449/198167
identifier_str_mv PLoS ONE, v. 14, n. 11, 2019.
1932-6203
10.1371/journal.pone.0225252
2-s2.0-85075267410
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv PLoS ONE
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
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