Results 201 to 210 of about 1,204 (224)
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The American Naturalist, 2021
AbstractThe impact of pollinator community diversity on trait matching in plant-pollinator interactions is poorly studied, even though many mutualisms involve multiple interaction partners. We studied 10 communities in which one to three species of oil-collecting Rediviva bees pollinate the long-spurred, oil-producing flowers of Diascia "floribunda" to
Hilke, Hollens-Kuhr +3 more
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AbstractThe impact of pollinator community diversity on trait matching in plant-pollinator interactions is poorly studied, even though many mutualisms involve multiple interaction partners. We studied 10 communities in which one to three species of oil-collecting Rediviva bees pollinate the long-spurred, oil-producing flowers of Diascia "floribunda" to
Hilke, Hollens-Kuhr +3 more
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Reproductive biology of Trichocentrum pumilum: an orchid pollinated by oil‐collecting bees
Plant Biology, 2010AbstractThe reproductive biology, reward production and pollination mechanism of Trichocentrum pumilum were studied in a gallery forest in the interior of the State of São Paulo, southeast Brazil. The floral visitors and pollination mechanism were recorded, and experimental pollinations were carried out in order to determine the breeding system of this
E R, Pansarin, L M, Pansarin
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Journal of the Kansas Entomological Society, 2008
Abstract The species of Rediviva (Apoidea, Melittidae) occurring in the summer rainfall region of South Africa are revised. Nine species are recognized, four are described as new: R. brunnea, R. autumnalis, R. rhodosoma and R. transkeiana all attributed to Whitehead and Steiner.
K E Steiner
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Abstract The species of Rediviva (Apoidea, Melittidae) occurring in the summer rainfall region of South Africa are revised. Nine species are recognized, four are described as new: R. brunnea, R. autumnalis, R. rhodosoma and R. transkeiana all attributed to Whitehead and Steiner.
K E Steiner
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Plant Systematics and Evolution, 1991
The manner whereby the oil-producing bisaccate flowers ofAngelonia (Scrophulariaceae) are pollinated by female oil-collecting bees is reported for the first time. Observations were made in the Caatinga formation of Pernambuco, NE. Brazil, on four synchronopatric species.
Isabel Cristina Machado, Stefan Vogel
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The manner whereby the oil-producing bisaccate flowers ofAngelonia (Scrophulariaceae) are pollinated by female oil-collecting bees is reported for the first time. Observations were made in the Caatinga formation of Pernambuco, NE. Brazil, on four synchronopatric species.
Isabel Cristina Machado, Stefan Vogel
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Arthropod-Plant Interactions, 2020
In plant–pollination interactions, the antagonists collect the same set of resources offered to legitimate visitors, but their morphologies and behavioural approaches possibly make their effect on plant fitness negative rather than positive. Depending on the morphology of Malpighiaceae flowers, these small-bodied bees can adopt an upside-down position,
Gudryan J. Baronio +3 more
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In plant–pollination interactions, the antagonists collect the same set of resources offered to legitimate visitors, but their morphologies and behavioural approaches possibly make their effect on plant fitness negative rather than positive. Depending on the morphology of Malpighiaceae flowers, these small-bodied bees can adopt an upside-down position,
Gudryan J. Baronio +3 more
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Journal of Natural History, 2014
We identified the food niche breadth of two sympatric species of oil-collecting bees, Centris (Heterocentris) analis (Fabricius, 1804) and Centris (Hemisiella) tarsata Smith, 1874, based on pollen analyses of larval food. We tested differences in the use of pollen sources considering the anther type and pollen size of the flowers. The species presented
Solange Cristina Augusto
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We identified the food niche breadth of two sympatric species of oil-collecting bees, Centris (Heterocentris) analis (Fabricius, 1804) and Centris (Hemisiella) tarsata Smith, 1874, based on pollen analyses of larval food. We tested differences in the use of pollen sources considering the anther type and pollen size of the flowers. The species presented
Solange Cristina Augusto
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Good parenting of oil-collecting bees: microbial defense in nests of Centris bees?
Abstract Microbial symbionts are increasingly recognized as key contributors to bee health, yet their roles in solitary bee brood cells remain largely unexplored. Here, we characterize the bacterial and fungal communities associated with brood cell compartments (cocoon, meconium, and prepupa) of the oil-collecting beeElif Kardas +7 more
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Zootaxa, 2016
Centris dimidiata (Olivier) is currently considered an easily recognizable species widely distributed throughout the Amazon basin, mainly in Brazil. For much of its taxonomic history, C. atriventris Mocsáry and C. furcata (Fabricius) have been considered its junior subjective synonymies.
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Centris dimidiata (Olivier) is currently considered an easily recognizable species widely distributed throughout the Amazon basin, mainly in Brazil. For much of its taxonomic history, C. atriventris Mocsáry and C. furcata (Fabricius) have been considered its junior subjective synonymies.
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The Science of Nature, 2018
Pollinators search for multiple flora resources throughout their life cycle. Most studies, however, only assess how bees discriminate floral cues in the context of nectar foraging. In the present study, we sought to elucidate whether oil-collecting bees discriminate flowers of Byrsonima variabilis (Malpighiaceae) with petals of different colours when ...
Brehna Teixeira de Melo +4 more
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Pollinators search for multiple flora resources throughout their life cycle. Most studies, however, only assess how bees discriminate floral cues in the context of nectar foraging. In the present study, we sought to elucidate whether oil-collecting bees discriminate flowers of Byrsonima variabilis (Malpighiaceae) with petals of different colours when ...
Brehna Teixeira de Melo +4 more
openaire +2 more sources
Phytochemistry
The evolution of flowers that offer oils as rewards and are pollinated by specialized bees represents a distinctive theme in plant-pollinator co-diversification. Some plants that offer acetylated glycerols as floral oils emit diacetin, a volatile by-product of oil metabolism, which is utilized by oil-collecting bees as an index signal for the presence ...
Maria Sol Balbuena +3 more
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The evolution of flowers that offer oils as rewards and are pollinated by specialized bees represents a distinctive theme in plant-pollinator co-diversification. Some plants that offer acetylated glycerols as floral oils emit diacetin, a volatile by-product of oil metabolism, which is utilized by oil-collecting bees as an index signal for the presence ...
Maria Sol Balbuena +3 more
openaire +2 more sources