Results 81 to 90 of about 1,953 (206)

Odor Compound Detection in Male Euglossine Bees [PDF]

, 2018
Male euglossine bees collect fragrances from various sources, which they store and use for as yet unknown purposes. They are attracted, often specifically, to single odor compounds and blends thereof. We used gas chromatography with electroantennographic
Roubik, D., Schiestl, F.
core  

Pheromone Analyses of the Anastrepha fraterculus (Diptera: Tephritidae) Cryptic Species Complex [PDF]

, 2018
The South American fruit fly Anastrepha fraterculus (Wiedemann) (Diptera: Tephritidae) cryptic species complex is presently one of the most studied pest models in terms of speciation and population mating compatibility.
BRAVO, I. S. J., BRÍZOVÁ, R, DIAS, V. S., HOSKOVEC, M, KALINOVÁ, B., MENDONÇA, A. L., MENDONÇA, A. L., NASCIMENTO, R. R. do, PARANHOS, B. A. J., SILVA, C. E., TOMCALA, VANÍCKOVÁ, L.   +11 more
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Seasonal changes in odour preferences by male euglossine bees (Hymenoptera: Apidae) and their ecological implications [PDF]

, 2018
Orchid bees are an important group of specialized insect pollinators in the Neotropics. Male orchid bees are attracted by a wide range of aromatic substances often produced by flowers.
Abrahamczyk, Stefan, Gottleuber, Peter, Kessler, Michael   +2 more
core  

Floral biology and a pollinator effectiveness test of the diurnal floral visitors of Tabernaemontana undulata Vahl. (Apocynaceae) in the understory of Amazon Rainforest, Brazil Biologia floral e teste da efetividade de polinização dos visitantes florais diurnos de Tabernaemontana undulata Vahl. (Apocynaceae) no sub-bosque da Amazônia Central, Brasil

Acta Botânica Brasílica, 2011
In this paper we examined the floral biology, per-visit effectiveness, frequency of visits and relative abundance of the diurnal floral visitor taxa of T.
Thaysa Nogueira de Moura, Antonio Carlos Webber, Liliane Noemia Melo Torres   +2 more
doaj   +1 more source

Abundance and diversity of Euglossina (Hymenoptera: Apidae) from Serra do Tepequém, municipality of Amajari, Roraima, Brazil. = Abundância e diversidade de abelhas Euglossina (Hymenoptera: Apidae) da Serra do Tepequém, município de Amajari, Roraima, Brasil.

Agro@mbiente On-line, 2013
The objective of this work was to contribute to the knowledge of Euglossina bees ecology in the Roraima State, Amazon Region, Brazil. A study of the Euglossina bees fauna from Serra do Tepequém, municipality of Amajari was made.
Sílvio José Reis da Silva, Jaime de Liege Gama Neto, Fernanda da Silva Parente   +2 more
doaj  

The Nuclear and Mitochondrial Genomes of the Facultatively Eusocial Orchid Bee Euglossa dilemma

G3: Genes, Genomes, Genetics, 2017
Bees provide indispensable pollination services to both agricultural crops and wild plant populations, and several species of bees have become important models for the study of learning and memory, plant–insect interactions, and social behavior.
Philipp Brand, Nicholas Saleh, Hailin Pan, Cai Li, Karen M. Kapheim, Santiago R. Ramírez   +5 more
doaj   +1 more source

Two new orchid bees of the subgenus Euglossella from Peru (Hymenoptera: Apidae). [PDF]

, 2007
Aus Peru werden zwei neue Prachtbienen-Arten der Gattung Euglossa, Subgenus Euglossella, (Apinae: Euglossini) beschrieben und dargestellt. Beide Arten, Euglossa (Euglossella) cosmodora sp. n. wie E. (E.) urarina sp.
Engel, Michael S., Hinojosa-Diaz, Ismael A.   +1 more
core   +3 more sources

Community of orchid bees (Hymenoptera: Apidae) in transitional vegetation between Cerrado and Atlantic Forest in southeastern Brazil

Brazilian Journal of Biology
The community of orchid bees (Hymenoptera: Apidae: Euglossina) was studied at an area in the transition between the Cerrado and Atlantic Forest biomes, from March, 2010 to February, 2011 in the Barroso region, state of Minas Gerais, eastern Brazil ...
EP. Pires, LN. Morgado, B. Souza, CF. Carvalho, A. Nemésio   +4 more
doaj   +1 more source

Multiple Aggressions Among Nestmates Lead to Weak Dominance Hampering Primitively Eusocial Behaviour in an Orchid Bee

Sociobiology, 2017
Reproductive conflict expressed as aggression is common in social Hymenoptera. In eusocial species, as in honeybees, several mechanisms alleviate the conflicts and reduce aggressive interactions.
SAMUEL BOFF, Claudia Akemi Saito, Isabel Alves-dos-Santos   +2 more
doaj   +1 more source

Quality versus quantity: foraging decisions in the honeybee (Apis mellifera scutellata) feeding on wildflower nectar and fruit juice [PDF]

, 2016
Foraging animals must often decide among resources which vary in quality and quantity. Nectar is a resource that exists along a continuum of quality in terms of sugar concentration and is the primary energy source for bees.
Al Toufailia, Hasan, Alves, Denise A, Balfour, Nicholas J, Barbosa, Marcela de Matos, Bento, José M S, de S Silva, Carina A, Gaioski Jr, Roberto, Ratnieks, Francis L W, Shackleton, Kyle   +8 more
core   +1 more source