Might Heterostyly Underlie Spider Occurrence on Inflorescences? A Case Study of Palicourea rigida (Rubiaceae), a Common Shrub from Brazilian Cerrado
We carried out a research on the Palicourea rigida (Rubiaceae) inflorescences, a distylous shrub of Brazilian Cerrado. Our objective was to compare the inflorescence architectural complexity and its quality in the two floral morphs and search for any relationship with spider occurrence. In order to...
Saved in:
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2012-01-01
|
| Series: | Psyche: A Journal of Entomology |
| Online Access: | http://dx.doi.org/10.1155/2012/791395 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832561927153254400 |
|---|---|
| author | Suzana Diniz Everton Tizo-Pedroso Denise Lange Andréa Andrade Vilela Danielle G. Justino Fernanda Alves Martins Erika Germanos Rafael Arruda Vanessa Stefani |
| author_facet | Suzana Diniz Everton Tizo-Pedroso Denise Lange Andréa Andrade Vilela Danielle G. Justino Fernanda Alves Martins Erika Germanos Rafael Arruda Vanessa Stefani |
| author_sort | Suzana Diniz |
| collection | DOAJ |
| description | We carried out a research on the Palicourea rigida (Rubiaceae) inflorescences, a distylous shrub of Brazilian Cerrado. Our objective was to compare the inflorescence architectural complexity and its quality in the two floral morphs and search for any relationship with spider occurrence. In order to assess the quality of inflorescence resources, we quantified the nectar volume and its sugar concentration and the number of fruits and flowers (intact and aborted) for both inflorescence morphs with and without spiders. For the architectural heterogeneity, we quantified floral structures and inflorescence levels of branching. Spider occurrence was higher in longistylous inflorescences than in brevistylous ones. The sampled spiders were classified into the guilds ambushers, jumpers, or orb-weavers. Ambushers, jumpers, and total richness were much higher among longistylous inflorescences. We found no difference between morphs neither in volume or nectar concentration nor in amount of fruits and flowers. However, longistylous inflorescences presented greater architectural heterogeneity than brevistylous ones. Therefore, we suggested that architectural heterogeneity is an important factor underlying the occurrence of cursorial spiders on P. rigida inflorescences, which possibly arose from the relationship between refuge availability and inflorescence architecture. |
| format | Article |
| id | doaj-art-9820ef23485c4da6ad36915a76cde1e5 |
| institution | Kabale University |
| issn | 0033-2615 1687-7438 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Psyche: A Journal of Entomology |
| spelling | doaj-art-9820ef23485c4da6ad36915a76cde1e52025-02-03T01:23:48ZengWileyPsyche: A Journal of Entomology0033-26151687-74382012-01-01201210.1155/2012/791395791395Might Heterostyly Underlie Spider Occurrence on Inflorescences? A Case Study of Palicourea rigida (Rubiaceae), a Common Shrub from Brazilian CerradoSuzana Diniz0Everton Tizo-Pedroso1Denise Lange2Andréa Andrade Vilela3Danielle G. Justino4Fernanda Alves Martins5Erika Germanos6Rafael Arruda7Vanessa Stefani8Programa de Pós-Graduação em Ecologia, Instituto de Biologia, UNICAMP, Caixa Postal 6109, 13083-970 Campinas, SP, BrazilUnidade Universitária de Morrinhos, Universidade Estadual de Goiás, 75650-000 Morrinhos, GO, BrazilLaboratório de Ecologia ComportamentaL e de Interações—LECI, Instituto de Biologia, Universidade Federal de Uberlândia, CP 593, 38400-902 Uberlândia, MG, BrazilLaboratório de Ecologia ComportamentaL e de Interações—LECI, Instituto de Biologia, Universidade Federal de Uberlândia, CP 593, 38400-902 Uberlândia, MG, BrazilLaboratório de Ecologia ComportamentaL e de Interações—LECI, Instituto de Biologia, Universidade Federal de Uberlândia, CP 593, 38400-902 Uberlândia, MG, BrazilLaboratório de Ecologia ComportamentaL e de Interações—LECI, Instituto de Biologia, Universidade Federal de Uberlândia, CP 593, 38400-902 Uberlândia, MG, BrazilUNICEUB/FACES, 70790-075, Brasília, DF, BrazilInstituto de Ciências Naturais, Humanas e Sociais, Universidade Federal de Mato Grosso, Campus Universitário de Sinop, 78557-267 Sinop, MT, BrazilLaboratório de Ecologia ComportamentaL e de Interações—LECI, Instituto de Biologia, Universidade Federal de Uberlândia, CP 593, 38400-902 Uberlândia, MG, BrazilWe carried out a research on the Palicourea rigida (Rubiaceae) inflorescences, a distylous shrub of Brazilian Cerrado. Our objective was to compare the inflorescence architectural complexity and its quality in the two floral morphs and search for any relationship with spider occurrence. In order to assess the quality of inflorescence resources, we quantified the nectar volume and its sugar concentration and the number of fruits and flowers (intact and aborted) for both inflorescence morphs with and without spiders. For the architectural heterogeneity, we quantified floral structures and inflorescence levels of branching. Spider occurrence was higher in longistylous inflorescences than in brevistylous ones. The sampled spiders were classified into the guilds ambushers, jumpers, or orb-weavers. Ambushers, jumpers, and total richness were much higher among longistylous inflorescences. We found no difference between morphs neither in volume or nectar concentration nor in amount of fruits and flowers. However, longistylous inflorescences presented greater architectural heterogeneity than brevistylous ones. Therefore, we suggested that architectural heterogeneity is an important factor underlying the occurrence of cursorial spiders on P. rigida inflorescences, which possibly arose from the relationship between refuge availability and inflorescence architecture.http://dx.doi.org/10.1155/2012/791395 |
| spellingShingle | Suzana Diniz Everton Tizo-Pedroso Denise Lange Andréa Andrade Vilela Danielle G. Justino Fernanda Alves Martins Erika Germanos Rafael Arruda Vanessa Stefani Might Heterostyly Underlie Spider Occurrence on Inflorescences? A Case Study of Palicourea rigida (Rubiaceae), a Common Shrub from Brazilian Cerrado Psyche: A Journal of Entomology |
| title | Might Heterostyly Underlie Spider Occurrence on Inflorescences? A Case Study of Palicourea rigida (Rubiaceae), a Common Shrub from Brazilian Cerrado |
| title_full | Might Heterostyly Underlie Spider Occurrence on Inflorescences? A Case Study of Palicourea rigida (Rubiaceae), a Common Shrub from Brazilian Cerrado |
| title_fullStr | Might Heterostyly Underlie Spider Occurrence on Inflorescences? A Case Study of Palicourea rigida (Rubiaceae), a Common Shrub from Brazilian Cerrado |
| title_full_unstemmed | Might Heterostyly Underlie Spider Occurrence on Inflorescences? A Case Study of Palicourea rigida (Rubiaceae), a Common Shrub from Brazilian Cerrado |
| title_short | Might Heterostyly Underlie Spider Occurrence on Inflorescences? A Case Study of Palicourea rigida (Rubiaceae), a Common Shrub from Brazilian Cerrado |
| title_sort | might heterostyly underlie spider occurrence on inflorescences a case study of palicourea rigida rubiaceae a common shrub from brazilian cerrado |
| url | http://dx.doi.org/10.1155/2012/791395 |
| work_keys_str_mv | AT suzanadiniz mightheterostylyunderliespideroccurrenceoninflorescencesacasestudyofpalicourearigidarubiaceaeacommonshrubfrombraziliancerrado AT evertontizopedroso mightheterostylyunderliespideroccurrenceoninflorescencesacasestudyofpalicourearigidarubiaceaeacommonshrubfrombraziliancerrado AT deniselange mightheterostylyunderliespideroccurrenceoninflorescencesacasestudyofpalicourearigidarubiaceaeacommonshrubfrombraziliancerrado AT andreaandradevilela mightheterostylyunderliespideroccurrenceoninflorescencesacasestudyofpalicourearigidarubiaceaeacommonshrubfrombraziliancerrado AT daniellegjustino mightheterostylyunderliespideroccurrenceoninflorescencesacasestudyofpalicourearigidarubiaceaeacommonshrubfrombraziliancerrado AT fernandaalvesmartins mightheterostylyunderliespideroccurrenceoninflorescencesacasestudyofpalicourearigidarubiaceaeacommonshrubfrombraziliancerrado AT erikagermanos mightheterostylyunderliespideroccurrenceoninflorescencesacasestudyofpalicourearigidarubiaceaeacommonshrubfrombraziliancerrado AT rafaelarruda mightheterostylyunderliespideroccurrenceoninflorescencesacasestudyofpalicourearigidarubiaceaeacommonshrubfrombraziliancerrado AT vanessastefani mightheterostylyunderliespideroccurrenceoninflorescencesacasestudyofpalicourearigidarubiaceaeacommonshrubfrombraziliancerrado |