Consulta: subjectFacets:"Bee pollination"
Registros recuperados: 4
Data/hora: 09/06/2024 14:55:51

Biologia reprodutiva de Copaifera langsdorffii Desf. (Leguminosae, Caesalpinioideae
Provedor de dados: 88
Autores: FREITAS,CRISTIANE V.; OLIVEIRA,PAULO E.
Copaifera langsdorffii Desf. é uma espécie da família Leguminosae, subfamília Caesalpinioideae, de ampla distribuição no Brasil. O estudo da biologia reprodutiva desta espécie foi realizado numa área de cerradão aberto para pastagem da Fazenda Capim Branco, Uberlândia, MG. A espécie floresce durante o período das chuvas e dispersa suas sementes na época seca. As flores são branco-esverdeadas, com cerca de 0,5 cm de diâmetro, fracamente zigomorfas e estão reunidas em inflorescência paniculada. Apresentam um forte odor adocicado e duram apenas um dia. A antese inicia-se por volta das 5:00 h. Os recursos oferecidos aos visitantes são pólen e néctar. Produzem pouco néctar (0,2 ml) com concentração média de 49% de equivalentes de sacarose. Os visitantes mais...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cerrado; Savanna; Bee pollination; Self-sterility; Inbreeding depression.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042002000300007

Fruit set of distylous Psychotria carthagenensis Jacq. (Rubiaceae) mediated by Apis mellifera (Apidae) and species of Augochloropsis (Halictidae)
Provedor de dados: 39
Autores: Faria,Rogério Rodrigues; Araujo,Andréa Cardoso.
Heterostyly is a floral polymorphism consisting in the presence of two morphs in the population that differ reciprocally in the position of their sexual organs. Heterostylous species depend on visitors to produce fruits, but the efficiency of insect species as pollinators greatly varies and depends on the morph visited. The aim of the present study was to determine the effect of a single visit by the bees Apis mellifera and species of Augochloropsis on the fruit set of the distylous species Psychotria carthagenensis.After a single visit from each bee species, flowers were bagged to monitor the fruit set. Pollination effectiveness between pollinators and morphs was compared. The results of the experiments were compared with data from manual intermorph...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Bee pollination; Heterostyly; Honeybees; Pollination effectiveness; Reproductive success.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062015000200278

Pollination biology of melittophilous legume tree species in the Atlantic Forest in Southeast Brazil
Provedor de dados: 39
Autores: Pinheiro,Mardiore; Brito,Vinicius Lourenço Garcia de; Sazima,Marlies.
ABSTRACT This study describes the floral phenology and morphology, reproductive biology and pollinators for eight legume tree species, Schizolobium parahyba, Senna macranthera, and Senna multijuga (Caesalpinioideae), as well as Andira fraxinifolia, Lonchocarpus cultratus, Pterocarpus violaceus, Swartzia oblata, and S. simplex (Papilionoideae), in the Atlantic Forest in Southeast Brazil. All the studied species showed an annual flowering pattern, and almost all are of the cornucopia-flowering type, with the only exception being Swartzia oblata, which was of the steady-state type. In general, the legume flowers studied are conspicuous, mostly medium-sized, and offer nectar and/or pollen as a resource. Self-incompatibility associated with the production of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bee pollination; Bombus; Caesalpinioideae; Centridini; Euglossina; Faboideae; Floral biology; Reproduction; Self-incompatibility; Xylocopa.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000300410

Are native bees and Apis mellifera equally efficient pollinators of the rupestrian grassland daisy Aspilia jolyana (Asteraceae)?
Provedor de dados: 39
Autores: 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