Results 151 to 160 of about 1,457 (180)

Feulgen‐DNA response and chromatin condensation in Malpighian tubules of Melipona rufiventris and Melipona quadrifasciata (Hymenoptera, Apoidea)

Cell Biology International, 2008
AbstractMelipona quadrifasciata and Melipona rufiventris are stingless bee species which present low and high heterochromatin content, respectively, on their mitotic chromosomes as assessed visually after a C‐banding assay. However, these species do not show differences in the C‐banding responses of their Malpighian tubule interphase nuclei.
André Roberto, Mampumbu, Maria Luiza S, Mello   +1 more
openaire   +2 more sources

Behaviour of drones in Melipona (Apidae, Meliponinae)

Insectes Sociaux, 1997
The behaviour of drones of different species of Melipona was studied in Costa Rica and on Tobago. Drones of all species behaved very similarly. The intranidal behavioural analysis indicates that drones spent most time on standing, walking, stirring the antennae and self-grooming.
J.W. van Veen, M.J. Sommeijer, F. Meeuwsen   +2 more
exaly   +2 more sources

Report on the microbiota of Melipona quadrifasciata affected by a recurrent disease

Journal of Invertebrate Pathology, 2017
Melipona quadrifasciata is an eusocial stingless bee traditionally used for honey production in Brazil. In the last decades, the species disappeared from the wild in Southern Brazil, being kept exclusively in managed colonies for commercial and recreational purposes.
Sebastián, Díaz, Sarah, de Souza Urbano, Lílian, Caesar, Betina, Blochtein, Aroni, Sattler, Valmir, Zuge, Karen Luisa, Haag   +6 more
openaire   +2 more sources

Adjustment of fuel loads in stingless bees (Melipona subnitida)

Journal of Comparative Physiology A, 2020
Eusocial bee foragers leave their nest with nectar as flight fuel, therewith reducing the risk of starvation during a foraging trip. Yet, the extra mass results in an increase of energetic expenditure for flight. Thus, bees should tune their fuel loads to the respective foraging situation.
Ken-ichi Harano, Camila Maia-Silva, Michael Hrncir   +2 more
openaire   +2 more sources

Mandibular Gland Secretion of Melipona beecheii: Chemistry and Behavior

Journal of Chemical Ecology, 2005
The mandibular gland secretion of Melipona beecheii contains a rich mixture of terpenoid and oxygenated compounds and unsaturated and saturated hydrocarbons. However, it differs markedly from the 11 other Brazilian species examined in previous studies, both by the absence of 2-heptanol and the presence of rose oxides.
Leopoldo, Cruz-López, Edi A, Malo, E David, Morgan, Manuel, Rincon, Miguel, Guzmán, Julio C, Rojas   +5 more
openaire   +2 more sources

Evolution of the Mechanism of Caste Determination in the Genus melipona

Evolution, 1950
Social bees (Apidae) belong to three tribes and five genera: Bombus (Bombini), Apis (Apini) and Trigona, Lestrimelitta 'and Melipona (Meliponini). These three tribes are phylogenetically related to one another possessing certain characters in common, and thus are united in the same subfamily (Apinae).
openaire   +1 more source

Antibacterial activity of honeys from Amazonian stingless bees of Melipona spp. and its effects on bacterial cell morphology

Journal of the Science of Food and Agriculture, 2021
Susan Christina Braga Domingos, VÍCTOR Hugo Clebis, Gerson Nakazato   +2 more
exaly  

Tragedy of the commons in Melipona bees revisited

Biology Letters, 2022
Ricardo Caliari Oliveira, Viviana Di Pietro, JOSÉ Javier G Quezada-Euan   +2 more
exaly  

Geoprópolis de Melipona scutellaris

2021
openaire   +1 more source

Mel da abelha melipona subnitida

2022
Luma Teixeira Cavalcante, Maria da Conceição Tavares Cavalcanti Liberato   +1 more
openaire   +1 more source