Results 71 to 80 of about 1,970 (204)

Seasonal changes in odour preferences by male euglossine bees (Hymenoptera: Apidae) and their ecological implications [PDF]

open access: yes, 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   +2 more
core  

Multifemale nests and social behavior in Euglossa melanotricha (Hymenoptera, Apidae, Euglossini) [PDF]

open access: yesJournal of Hymenoptera Research, 2012
The nesting biology and social behavior of the euglossine bee species Euglossa melanotricha was analyzed based on the monitoring of eight nests found in man-made cavities and transferred to observation boxes. Euglossa melanotricha females usually construct their nests in cavities in the ground, in buildings, or in mounds.
Andrade-Silva,Aline, Nascimento,Fabio
openaire   +3 more sources

Mountain colonization precedes shifts away from bee pollination in Melastomataceae

open access: yesNew Phytologist, Volume 247, Issue 3, Page 1474-1492, August 2025.
Summary Shifts among different groups of pollinators are central in the evolution of flowering plants, yet mechanisms underlying pollinator shifts remain unclear. Environment‐induced reduction in pollinator availability and hence efficiency may destabilize ancestral plant–pollinator interactions and trigger shifts to new, more efficient pollinators ...
Constantin Kopper   +2 more
wiley   +1 more source

The changes in power requirements and muscle efficiency during elevated force production in the fruit fly Drosophila melanogaster [PDF]

open access: yes, 1997
The limits of flight performance have been estimated in tethered Drosophila melanogaster by modulating power requirements in a 'virtual reality' flight arena.
Dickinson, Michael H.   +1 more
core  

MicroRNAs Associated with Caste Determination and Differentiation in a Primitively Eusocial Insect [PDF]

open access: yes, 2017
In eusocial Hymenoptera (ants, bees and wasps), queen and worker adult castes typically arise via environmental influences. A fundamental challenge is to understand how a single genome can thereby produce alternative phenotypes. A powerful approach is to
Beckers, Matthew   +5 more
core   +2 more sources

Pharmacophagy in insects: Ecological and evolutionary perspectives on the non‐nutritional use of plant specialized metabolites

open access: yesEntomologia Experimentalis et Applicata, Volume 173, Issue 7, Page 661-673, July 2025.
Insects interact with plants not only for nutrition but also to actively seek plant specialized metabolites (PSMs) for chemical defense, reproduction, and self‐medication—a behavior known as pharmacophagy. This review examines how insects across diverse orders acquire PSMs from both food and non‐food plants for non‐nutritional benefits.
Pragya Singh, Caroline Müller
wiley   +1 more source

Diversidade de Euglossini (Hymenoptera: Apidae) em áreas de Cerrado do Triângulo Mineiro, MG.

open access: yesBioscience Journal, 2007
Os Euglossini são abelhas típicas de matas tropicais úmidas, mas poucos estudos têm sido feitos estimando parâmetros ecológicos desse grupo em outras fitofisionomias.
Paulo Emílio Ferreira e Alvarenga   +2 more
doaj  

Biomonitoramento de abelhas euglossina (Apidae, Hymenoptera) em um SAF com castanheira-do-brasil (Bertholletia excelsa Bonpl., Lecythidaceae) em Tomé-Açu, Pará. [PDF]

open access: yes, 2011
A castanha-do-brasil (Bertholletia excelsa) é uma planta nativa da Amazônia e uma das mais importantes espécies de exploração extrativista do Brasil. É uma espécie melitófila, polinizada por abelhas de grande porte, como os Euglossina dos gêneros Eulaema
MAUES, M. M.   +3 more
core  

The wasps, bees and ants (Insecta: Vespida=Hymenoptera) from the Insect Limestone (Late Eocene) of the Isle of Wight, UK [PDF]

open access: yes, 2014
The types and undescribed material of the hymenopteran fossils of the Insect Bed of the Bembridge Marls from the Isle of Wight (UK) are critically revised and studied. A total of 1460 fossils are recorded and attributed to 20 families: Gasteruptiidae s.l.
Antropov, AV   +8 more
core   +1 more source

Diversity and abundance of orchid bees (Hymenoptera: Apidae, Euglossini) in a tropical rainforest succession [PDF]

open access: yesNeotropical Entomology, 2009
Euglossine bee males are easily lured to chemical baits imitating natural fragrances gathered by bees, providing a widely applied measure for estimating the diversity and abundance of euglossines. In here, I report the composition of euglossine bees in three lowland rainforest habitats of Peru, a primary old forest, a reforested and managed forest, and
openaire   +4 more sources

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