Results 91 to 100 of about 22,703 (241)
Full classification of static spherical vacuum solutions to bumblebee gravity with general VEVs
Physics Letters BThe static spherical vacuum solution in a bumblebee gravity model where the bumblebee field Bμ has a two-component space-like, light-like, and time-like vacuum expectation value bμ is studied.
Jie Zhu, Hao Li
doaj +1 more source
The Effect of Oral Administration of dsRNA on Viral Replication and Mortality in Bombus terrestris
Viruses, 2015 Israeli acute paralysis virus (IAPV), a single-stranded RNA virus, has a worldwide distribution and affects honeybees as well as other important pollinators.
Niels Piot +4 more
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Wild bee toxicity data for pesticide risk assessments [PDF]
, 2019 Pollination services are vital for agriculture, food security and biodiversity. Although many insect species provide pollination services, honeybees are thought to be the major provider of this service to agriculture. However, the importance of wild bees
Lewis, Kathleen, Tzilivakis, John
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Ecological Entomology, EarlyView.Many plants retain nectarless flowers; we tested whether these act as “decoys” for bees by making neighbouring rewarding flowers seem more valuable—a cognitive bias known as the decoy effect. The presence of decoy flowers did not shift bumblebee preferences between two equally rewarding inflorescences, and bees quickly learned to avoid these nectarless
Mélissa Armand +3 more
wiley +1 more source
Matter-gravity couplings and Lorentz violation [PDF]
, 2011 The gravitational couplings of matter are studied in the presence of Lorentz and CPT violation. At leading order in the coefficients for Lorentz violation, the relativistic quantum hamiltonian is derived from the gravitationally coupled minimal Standard ...
C. M. Will +14 more
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Diet breadth shapes gut microbiota in the invasive hornet Vespa velutina
Insect Conservation and Diversity, EarlyView.Dietary and microbial profiles of V. velutina larvae are dominated by Apidae and Firmicutes, respectively. DNA metabarcoding of larval meconium and gut samples reveals a significant positive correlation between prey richness and bacterial diversity in the invasive hornet V. velutina. Multiple significant correlations exist between dietary and microbial
Cayetano Herrera +3 more
wiley +1 more source
The dilemma of honey bee pest management in European Union: eradication or coexistence?
Insect Science, EarlyView.
Michela Bertola, Franco Mutinelli
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Journal of Zoology, EarlyView.The Urban Heat Island Effect (UHI) can potentially subject insects to heat and desiccation stress and likely induce shifts in their cuticular hydrocarbon (CHC) profile. We expected that warmer urbanized areas favour longer chain length of hydrocarbons as well as higher abundance of n‐alkanes in three Hymenoptera species. We found that temperature, more
A. Ferrari +3 more
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Understanding the Flight of the Bumblebee
PLoS Biology, 2012 Bumblebees are remarkable navigators. While their flight paths may look scattered to the casual eye, all that buzzing about is anything but random. Like the travelling salesman in the famous mathematical problem of how to take the shortest path along multiple stops, bumblebees quickly find efficient routes among flowers. And once they find a good route,
openaire +3 more sources
Rapid disruption of pollination function by the invasive plant Impatiens glandulifera
Plant Biology, EarlyView.Invasion by Impatiens glandulifera rapidly disrupts pollination of the native plant Stachys sylvatica by altering pollen transport by shared bumblebee pollinators. A short‐term field introduction revealed a dramatic decline in conspecific pollen deposition within 4 days, showing that pollination function can collapse quickly following invasion, even ...
R. Pérez‐Barrales +3 more
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