Mudanças ao longo da vida das flores de Brunfelsia uniflora (Pohl) D. Don (solanaceae) e interação com visitantes florais
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Data
2021-12-08
Autores
Taguchi, Luis Eduardo
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Universidade Estadual Paulista (Unesp)
Resumo
Neste trabalho investigamos o fenômeno de mudança de cor das flores de Brunfelsia uniflora, indo do roxo ao branco ao longo de sua antese, e sua relação com os recursos florais e interação com visitantes. Descobrimos que existe uma correlação entre a concentração do néctar e a viabilidade do pólen com a coloração das flores. A concentração é menor nas flores roxas e aumenta nas brancas, enquanto a viabilidade diminui com o passar do tempo. Três morfotipos de borboletas e um de mariposa foram registrados durante 80 horas de observação de campo. As borboletas visitaram as flores roxas com mais frequência enquanto as mariposas visitaram as brancas.
(Lifetime changes of Brunfelsia uniflora (Pohl) D. Don (Solanaceae) flowers and interaction with floral visitors). In this work we investigate the phenomenon of color change in Brunfelsia uniflora flowers, going from purple to white along its anthesis, and its relationship with floral resources and interaction with visitors. We found that there is a correlation between nectar concentration and pollen viability with flower color. Concentration is lower in purple flowers and increases in white ones, while viability decreases over time. Three morphotypes of butterflies and one of moth were recorded during 80 hours of field observation. Butterflies visited the purple flowers more often while moths visited the white ones.
(Lifetime changes of Brunfelsia uniflora (Pohl) D. Don (Solanaceae) flowers and interaction with floral visitors). In this work we investigate the phenomenon of color change in Brunfelsia uniflora flowers, going from purple to white along its anthesis, and its relationship with floral resources and interaction with visitors. We found that there is a correlation between nectar concentration and pollen viability with flower color. Concentration is lower in purple flowers and increases in white ones, while viability decreases over time. Three morphotypes of butterflies and one of moth were recorded during 80 hours of field observation. Butterflies visited the purple flowers more often while moths visited the white ones.
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Polinização por insetos, Ecologia vegetal, Lepidóptero, Coloring, Nectar, Pollen, Pollination