Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados Acta Botanica (2) Autor Nunes,Carlos E. P. (2) Amorim,Felipe W. (1) Briet,Joseildo (1) Galetto,Leonardo (1) Gustafsson,Simone (1) Maruyama,Pietro K. (1) Morellato,Leonor Patricia Cerdeira (1) Sazima,Marlies (1) Vizentin-Bugoni,Jeferson (1) Mais... Palavra-chave Bee pollination (1) Bombus pauloensis (1) Bromeliaceae (1) Generalization (1) Honeybee (1) Invasive species (1) Nectar traits (1) Phaethornithinae (1) Pollination efficacy (1) Serra do Cipó (1) Specialized pollination system (1) Sugar chemical composition (1) Trochilidae (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2018 (2) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Nectar ecology of the endemic epiphytic hummingbird-pollinated bromeliad Vriesea altodaserrae: secretion dynamics and pollinator visitation pattern Acta Botanica 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 Are native bees and Apis mellifera equally efficient pollinators of the rupestrian grassland daisy Aspilia jolyana (Asteraceae)? Acta Botanica Maruyama,Pietro K.; Nunes,Carlos E. P.; Vizentin-Bugoni,Jeferson; Gustafsson,Simone; Morellato,Leonor Patricia Cerdeira. ABSTRACT Most angiosperms rely on animals for pollination, and insects, especially bees, are being the most frequent pollinators. Many native Neotropical plants are frequently visited by the invasive honeybee (Apis mellifera), but its role in the pollination of these plants has been little investigated. We assessed the contribution of various floral visitors, including native bees and the honeybee, on the pollination of a generalist rupestrian grassland daisy, Aspilia jolyana (Asteraceae), in Serra do Cipó, Espinhaço Mountain Range, Brazil. We recorded floral visitors and measured the seed set resulting from one single visitation. We observed a total of 442 visits, mostly by bees, with Bombus pauloensis and Apis mellifera being the most common floral... Tipo: Info:eu-repo/semantics/article Palavras-chave: Bee pollination; Bombus pauloensis; Generalization; Honeybee; Invasive species; Pollination efficacy; Serra do Cipó. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000300386 Registros recuperados: 2 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco