Results 31 to 40 of about 26,918 (269)
Taxonomic note on the type species of Centris (Melanocentris) (Hymenoptera: Apidae) [PDF]
, 2018 Centris (Melanocentris) Friese is one of many subgenera that have been proposed throughout the taxonomic history of the bee genus Centris Fabricius. The lack of critical study of the type specimens of its type species, Centris atra Friese, resulted in ...
Vivallo, Felipe
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Pollen elicits proboscis extension but does not reinforce PER learning in honeybees [PDF]
, 2013 The function of pollen as a reward for foraging bees is little understood, though there is evidence to suggest that it can reinforce associations with visual and olfactory floral cues.
Casteel +10 more
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Nesting biology and potential distribution of an oil-collecting Centridine Bee from South America [PDF]
Apidologie, 2016 Despite their relevance for the maintenance of terrestrial ecosystems, important aspects such as the biology and distribution range remain unknown for most species of bees that occur in the Neotropical region. This makes the monitoring of pollinators and the establishment of conservation policies difficult.
Danny Velez +2 more
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Does the waggle dance help honey bees to forage at greater distances than expected for their body size? [PDF]
, 2015 A honey bee colony has been likened to an oil company. Some members of the company or colony prospect for valuable liquid resources. When these are discovered other group members can be recruited to exploit the resource. The recruitment of nestmates to a
Beekman +49 more
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Anales del Jardín Botánico de Madrid, 2014 The genus Zygostates Lindl. (Orchidaceae) comprises about 20 species of small Neotropical epiphytic plants, represented in its southernmost limit by the species Z. alleniana.
Natalia E. Gómiz +2 more
doaj +1 more source
Three new species of Diascia (Scrophulariaceae) from the Western Cape, South Africa
Bothalia: African Biodiversity & Conservation, 2009 Three new annual species of Diascia Link & Otto are described from the Western Cape Province of South Africa. D. collina is characterized by greyish magenta flowers with two divergent yellow sacs containing oil-secreting trichomes.
K. E. Steiner
doaj +1 more source
Checklist das abelhas coletoras de óleos do Estado de São Paulo, Brasil [PDF]
, 2011 Neste trabalho uma lista atualizada das espécies de abelhas coletoras de óleo do Estado de São Paulo é apresentada, com suas ocorrências associadas aos grandes biomas do estado: Floresta Atlântica e Cerrado.
Aguiar, Antonio José Camillo de +3 more
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Nectar and oleiferous trichomes as floral attractants in Bulbophyllum saltatorium Lindl. (Orchidaceae) [PDF]
, 2017 Although many Orchidaceae have deceit flowers that produce no reward, the most common reward, when present, is nectar. Bulbophyllum, however, is unusual in that the labellar secretions of most species investigated to date lack sugars, and, therefore ...
Davies, Kevin L. +2 more
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Byrsonic Acid—the Clue to Floral Mimicry Involving Oil-Producing Flowers and Oil-Collecting Bees
Journal of Chemical Ecology, 2007 Tetrapedia diversipes and other Apidae (Anthophoridae) may be deceived by floral similarities between Malpighiaceae and Orchidaceae of the Oncidiinae subtribe. The latter do not usually exudate floral oils. Thus, visitors may pollinate the flowers in a deceit/food/pollination syndrome.
Reis, Mariza Gomes +4 more
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Revista del Museo Argentino de Ciencias Naturales, 2017 Se presenta una sinopsis del género Paratetrapedia Moure en la Argentina. Seis especies de Paratetrapedia son registradas para Argentina : P . fervida (Smith), P . leucostoma (Cockerell), P . nigrispinis (Vachal), P . punctata (Aguiar & Melo), P . pygmaea (Schrottky), et P . volatilis (Smith), de las cuales P . leucostoma , P . punctata y P .
Juan Pablo Torretta, Arturo Roig Alsina
openaire +2 more sources