Consulta: creatorFacets:"Amorim,Felipe W."
Registros recuperados: 2
Data/hora: 13/06/2024 07:38:02

Nectar ecology of the endemic epiphytic hummingbird-pollinated bromeliad Vriesea altodaserrae: secretion dynamics and pollinator visitation pattern
Provedor de dados: 39
Autores: Nunes,Carlos E. P.; Briet,Joseildo; Galetto,Leonardo; Sazima,Marlies; Amorim,Felipe W.
ABSTRACT Hummingbirds are the main pollinators of most bromeliad species, whose nectar traits usually respond to the selective pressures imposed by pollinators. Considering the specialization of hummingbird-pollinated bromeliads, we expect a close relationship between nectar ecophysiology and the needs of the main pollinators. In this sense, we studied the nectar ecology of the endemic epiphytic bromeliad Vriesea altodaserrae by assessing its nectar traits to address the following questions: i) do flowers respond to successive experimental removals of nectar? ii) is hummingbird visitation frequency related to nectar secretion pattern? We found that V. altodaserrae depended completely on hummingbirds for sexual reproduction, and nectar composition was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bromeliaceae; Nectar traits; Phaethornithinae; Trochilidae; Specialized pollination system; Sugar chemical composition.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000300479

Can plant hybridization and polyploidy lead to pollinator shift?
Provedor de dados: 39
Autores: Rezende,Luiz; Suzigan,João; Amorim,Felipe W.; Moraes,Ana Paula.
ABSTRACT Events of both hybridization and polyploidy are capable of completely restructuring the genome, modifying phenotypic traits and affecting ecological interactions. For plants, these changes may affect floral traits that are important for interactions with pollinators, which could lead to shifts in pollinator behavior and taxa between hybrids/polyploids and parental/diploid species. Such pollinator shifts have great ecological and evolutionary relevance since they play a key role in the diversification of angiosperms. There is a growing number of studies that explicitly address the relationship between plant hybridization/polyploidy and pollinator shifts. However, questions remain about how often hybridization and polyploidy lead to pollinator...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allopolyploidy; Autopolyploidy; Floral traits; Hybrid species; Homoploid; Pollination.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000200229