Results 11 to 20 of about 4,606 (197)
Effect of pollinator size on seed set in Lamium album var. barbatum [PDF]
Background and aims – Previous researchers have demonstrated that geographic variation in pollinator community composition can generate diversity in the floral traits of animal-pollinated plants.
Mitsuru Hattori +2 more
doaj +3 more sources
Genus-Wide Characterization of Nuclear Mitochondrial DNAs in Bumblebee (Hymenoptera: Apidae) Genomes
In eukaryotes, DNA of mitochondria is transferred into the nucleus and forms nuclear mitochondrial DNAs (NUMTs). Taking advantage of the abundant genomic resources for bumblebees, in this study, we de novo generated mitochondrial genomes (mitogenomes ...
Lele Ding, Huiling Sang, Cheng Sun
doaj +1 more source
Many bumblebee species are declining due to a loss of semi-natural habitats in agricultural landscapes resulting in diminished forage and nest sites. Anecdotal experience indicates that bumblebees nest in straw bales, but scientific evidence is lacking ...
Sandra A.M. Lindström +2 more
doaj +1 more source
Rotating BTZ-like black hole and central charges in Einstein-bumblebee gravity
We obtain an exact rotating BTZ-like black hole solution by solving the corresponding gravitational field equations and the bumblebee motion equations in Einstein-bumblebee gravity theory.
Chikun Ding +5 more
doaj +1 more source
Bumblebee populations are declining. Factors that impact the size and success of colonies act by either limiting resource availability (bottom‐up regulation) or causing mortality, for example, pesticides, disease, and possibly predation (top‐down ...
Bethany R. Roberts +2 more
doaj +1 more source
Metric-affine bumblebee gravity: classical aspects
We consider the metric-affine formulation of bumblebee gravity, derive the field equations, and show that the connection can be written as Levi-Civita of a disformally related metric in which the bumblebee field determines the disformal part.
Adrià Delhom +4 more
doaj +1 more source
Braneworlds in bumblebee gravity
We investigate thick-brane solutions within the five-dimensional bumblebee gravity in the presence of a real scalar field. Specifically, we implement the Lorentz symmetry breaking scenario within this context and obtain brane-like structures.
M.A. Marques +3 more
doaj +1 more source
Interspecific Variation in Bumblebee Performance on Pollen Diet: New Insights for Mitigation Strategies. [PDF]
Bumblebees (i.e. Bombus genus) are major pollinators of flowering wild plants and crops. Although many species are currently in decline, a number of them remain stable or are even expanding.
Romain Moerman +4 more
doaj +1 more source
Influence of Pollination Technique on Greenhouse Tomato Production
An experiment was carried out to study the effects of four pollination techniques; Bumblebees (Bombus terrerstris L.), plant growth bioregulator (PGB) (Parachlorophenoxy acetic acid), hand vibration, and control (natural pollination) on tomato ...
I.K. Nazer, M.A. Kasrawi, Y.Z. Al-Attal
doaj +1 more source
Radiative corrections in bumblebee electrodynamics
We investigate some quantum features of the bumblebee electrodynamics in flat spacetimes. The bumblebee field is a vector field that leads to a spontaneous Lorentz symmetry breaking.
R.V. Maluf, J.E.G. Silva, C.A.S. Almeida
doaj +1 more source

