The effects of nectar-robbing on fruit production in Sparattosperma leucanthum (Bignoniaceae)
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/226281 |
Resumo: | Many animals behave as robbers or thieves of floral resources, causing damage to floral tissues or consuming resources used to attract pollinators, or producing effects similar to emasculation by reducing the pollen load in the anthers (which generally results in losses in terms of sexual reproduction). The present work examined the direct and indirect impacts caused by nectarrobbing on the reproductive success of Sparattosperma leucanthum. Different manipulations of the flowers were tested to determine if fruit production was influenced by the perforations made in the floral tissues (direct damage), and if there were changes in visitation frequencies or in the behaviors of effective pollinators (indirect damage). Perforations made by nectar robbers did not lower the reproductive success of the plant species studied. The bee Trigona spinipes was the most frequent visitor and caused the largest perforations in the calyx and corolla of S. leucanthum. Additionally, we noted the occurrence of pollen theft by this same bee in flowers that had been protected against nectar-robbing. These results suggest that if S. leucanthum had developed a mechanism of resistance to robbery by T. spinipes it would probably have experienced even lower pollination levels as a result of reductions in the quantities of pollen available for transfer by effective pollinators. We were not able to evaluate if nectar depletion through robbery modified the behavior of the effective pollinators (bumblebees of the genus Bombus). |
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The effects of nectar-robbing on fruit production in Sparattosperma leucanthum (Bignoniaceae)BeesEffective pollinatorFloral damageResource larcenyTrigona spinipesMany animals behave as robbers or thieves of floral resources, causing damage to floral tissues or consuming resources used to attract pollinators, or producing effects similar to emasculation by reducing the pollen load in the anthers (which generally results in losses in terms of sexual reproduction). The present work examined the direct and indirect impacts caused by nectarrobbing on the reproductive success of Sparattosperma leucanthum. Different manipulations of the flowers were tested to determine if fruit production was influenced by the perforations made in the floral tissues (direct damage), and if there were changes in visitation frequencies or in the behaviors of effective pollinators (indirect damage). Perforations made by nectar robbers did not lower the reproductive success of the plant species studied. The bee Trigona spinipes was the most frequent visitor and caused the largest perforations in the calyx and corolla of S. leucanthum. Additionally, we noted the occurrence of pollen theft by this same bee in flowers that had been protected against nectar-robbing. These results suggest that if S. leucanthum had developed a mechanism of resistance to robbery by T. spinipes it would probably have experienced even lower pollination levels as a result of reductions in the quantities of pollen available for transfer by effective pollinators. We were not able to evaluate if nectar depletion through robbery modified the behavior of the effective pollinators (bumblebees of the genus Bombus).Programa de Pós-Graduação em Ciências Biológicas (Zoologia) Instituto de Biociências Univ Estadual Paulista, Av.24A, 1515, Bairro Bela Vista, Rio Claro-SP.CEP 13 506-900Departamento de Biologia Instituto de Biociências Univ Estadual Paulista, Rio Claro, SPFaculdade de Ciências Biológicas e Ambientais Univ Federal da Grande Dourados, Dourados, MSCurso de Ciências Biológicas Univ Estadual de Mato Grosso do Sul, Ivinhema, MSPrograma de Pós-Graduação em Ciências Biológicas (Zoologia) Instituto de Biociências Univ Estadual Paulista, Av.24A, 1515, Bairro Bela Vista, Rio Claro-SP.CEP 13 506-900Departamento de Biologia Instituto de Biociências Univ Estadual Paulista, Rio Claro, SPUniversidade Estadual Paulista (UNESP)Univ Federal da Grande DouradosUniversidade Estadual de Mato Grosso do Sul (UEMS)Polatto, Leandro Pereira [UNESP]Chaud-Netto, José [UNESP]AlvesJúnior, Valter VieiraDutra, João Cloves Stanzani2022-04-28T22:36:58Z2022-04-28T22:36:58Z2011-03-28info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article223-235Sociobiology, v. 57, n. 2, p. 223-235, 2011.0361-6525http://hdl.handle.net/11449/2262812-s2.0-79952943445Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengSociobiologyinfo:eu-repo/semantics/openAccess2022-04-28T22:36:58Zoai:repositorio.unesp.br:11449/226281Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-04-28T22:36:58Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
The effects of nectar-robbing on fruit production in Sparattosperma leucanthum (Bignoniaceae) |
title |
The effects of nectar-robbing on fruit production in Sparattosperma leucanthum (Bignoniaceae) |
spellingShingle |
The effects of nectar-robbing on fruit production in Sparattosperma leucanthum (Bignoniaceae) Polatto, Leandro Pereira [UNESP] Bees Effective pollinator Floral damage Resource larceny Trigona spinipes |
title_short |
The effects of nectar-robbing on fruit production in Sparattosperma leucanthum (Bignoniaceae) |
title_full |
The effects of nectar-robbing on fruit production in Sparattosperma leucanthum (Bignoniaceae) |
title_fullStr |
The effects of nectar-robbing on fruit production in Sparattosperma leucanthum (Bignoniaceae) |
title_full_unstemmed |
The effects of nectar-robbing on fruit production in Sparattosperma leucanthum (Bignoniaceae) |
title_sort |
The effects of nectar-robbing on fruit production in Sparattosperma leucanthum (Bignoniaceae) |
author |
Polatto, Leandro Pereira [UNESP] |
author_facet |
Polatto, Leandro Pereira [UNESP] Chaud-Netto, José [UNESP] AlvesJúnior, Valter Vieira Dutra, João Cloves Stanzani |
author_role |
author |
author2 |
Chaud-Netto, José [UNESP] AlvesJúnior, Valter Vieira Dutra, João Cloves Stanzani |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Univ Federal da Grande Dourados Universidade Estadual de Mato Grosso do Sul (UEMS) |
dc.contributor.author.fl_str_mv |
Polatto, Leandro Pereira [UNESP] Chaud-Netto, José [UNESP] AlvesJúnior, Valter Vieira Dutra, João Cloves Stanzani |
dc.subject.por.fl_str_mv |
Bees Effective pollinator Floral damage Resource larceny Trigona spinipes |
topic |
Bees Effective pollinator Floral damage Resource larceny Trigona spinipes |
description |
Many animals behave as robbers or thieves of floral resources, causing damage to floral tissues or consuming resources used to attract pollinators, or producing effects similar to emasculation by reducing the pollen load in the anthers (which generally results in losses in terms of sexual reproduction). The present work examined the direct and indirect impacts caused by nectarrobbing on the reproductive success of Sparattosperma leucanthum. Different manipulations of the flowers were tested to determine if fruit production was influenced by the perforations made in the floral tissues (direct damage), and if there were changes in visitation frequencies or in the behaviors of effective pollinators (indirect damage). Perforations made by nectar robbers did not lower the reproductive success of the plant species studied. The bee Trigona spinipes was the most frequent visitor and caused the largest perforations in the calyx and corolla of S. leucanthum. Additionally, we noted the occurrence of pollen theft by this same bee in flowers that had been protected against nectar-robbing. These results suggest that if S. leucanthum had developed a mechanism of resistance to robbery by T. spinipes it would probably have experienced even lower pollination levels as a result of reductions in the quantities of pollen available for transfer by effective pollinators. We were not able to evaluate if nectar depletion through robbery modified the behavior of the effective pollinators (bumblebees of the genus Bombus). |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-03-28 2022-04-28T22:36:58Z 2022-04-28T22:36:58Z |
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 |
Sociobiology, v. 57, n. 2, p. 223-235, 2011. 0361-6525 http://hdl.handle.net/11449/226281 2-s2.0-79952943445 |
identifier_str_mv |
Sociobiology, v. 57, n. 2, p. 223-235, 2011. 0361-6525 2-s2.0-79952943445 |
url |
http://hdl.handle.net/11449/226281 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Sociobiology |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
223-235 |
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) |
repository.mail.fl_str_mv |
|
_version_ |
1799965266202853376 |