Results 1 to 10 of about 22,665 (203)

Radiative corrections in bumblebee electrodynamics

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 2015
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
exaly   +3 more sources

Light Sensitive Bumblebee Species Are Associated With Forest Habitat and Forest‐Dominated Landscapes [PDF]

Ecology and Evolution
We investigate whether the eye parameter of bumblebees—a visual trait measuring the tradeoff between light sensitivity and visual resolution—is associated with: (i) local habitats, (ii) forest cover at the landscape scale (1 km radius), and (iii) the ...
Océane Bartholomée, Pierre Tichit, Jens Åström, Henrik G. Smith, Sandra Åström, Markus A. K. Sydenham, Emily Baird   +6 more
doaj   +2 more sources

Mapping Bumblebee Community Assemblages and Their Associated Drivers in Yunnan, China [PDF]

Biology
Bumblebees are among the most important wild pollinators; however, their populations are declining worldwide due to factors such as climate change, habitat loss, and pesticide use.
Huanhuan Chen, Muhammad Naeem, Licun Meng, Nawaz Haider Bashir, Maryam Riasat, Zichao Liu, Canping Pan   +6 more
doaj   +2 more sources

Flupyradifurone Exhibits Greater Toxicity to the Asian Bumblebee Bombus lantschouensis Compared to the European Bumblebee Bombus terrestris [PDF]

Insects
Pesticides are considered a major factor in the decline of bee populations. Flupyradifurone, a novel insecticide, is believed to be relatively ‘bee-safe’.
Chunting Jie, Hong Zhang, Ziyu Zhou, Zhengying Miao, Bo Han, Baodi Guo, Yi Guo, Xiao Hu, Shahid Iqbal, Bingshuai Wei, Jiaxing Huang, Pingli Dai, Jiandong An   +12 more
doaj   +2 more sources

Bumblebee Pollination Enhances Yield and Flavor of Tomato in Gobi Desert Greenhouses

Agriculture, 2022
Bumblebee pollination is crucial to the production of tomato in protected cultivation. Both tomato yield and flavor play important roles in attracting attentions from growers and consumers.
Hong Zhang, Chao Han, Tom D. Breeze, Mengdan Li, Shibonage K. Mashilingi, Jun Hua, Wenbin Zhang, Xuebin Zhang, Shiwen Zhang, Jiandong An   +9 more
doaj   +1 more source

Radiative corrections in metric-affine bumblebee model

Physics Letters B, 2022
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.
Adria Delhom, J.R. Nascimento, Gonzalo J. Olmo, A.Yu. Petrov, P.J. Porfírio   +4 more
doaj   +1 more source

Bumblebee [PDF]

2009 Annual Conference & Exposition Proceedings, 2020
Comment: 15 ...
Brian Rodrigue, David Safont, Alex Rees, Jim Maday, Francisco Vilaplana, Goetz Bramesfeld   +5 more
openaire   +2 more sources

Effects of Open and Forest Habitats on Distribution and Diversity of Bumblebees (Bombus) in the Małopolska Upland (Southern Poland): Case Study

Biology, 2021
Bumblebees are an important insect group occurring in different land ecosystems, but the number of these species has declined dramatically across Poland as well as in Europe in recent years.
Jolanta Bąk-Badowska, Anna Wojciechowska, Joanna Czerwik-Marcinkowska   +2 more
doaj   +1 more source

Effect of pollinator size on seed set in Lamium album var. barbatum [PDF]

Plant Ecology and Evolution, 2021
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, Yoko Tamada, Takao Itino   +2 more
doaj   +3 more sources

Constructing a Stochastic Model of Bumblebee Flights from Experimental Data [PDF]

, 2013
PMCID: PMC3592844This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are ...
A James, A Mashanova, Aleksei V. Chechkin, AM Edwards, AM Edwards, AM Reynolds, B Lindner, C Hawkes, Christof Markus Aegerter, DW Sims, E Kai, EA Codling, EA Codling, F Bartumeus, F Lenz, F Lenz, F Peruani, Friedrich Lenz, GM Viswanathan, GM Viswanathan, L Giuggioli, M Ragwitz, MC Santos, MJ Plank, NE Humphries, O Bénichou, O Bénichou, O Miramontes, P Bovet, P Dieterich, P Romanczuk, P Romanczuk, PM Kareiva, R Friedrich, Rainer Klages, S Benhamou, S Benhamou, S Petrovskii, TC Ings, TC Ings   +39 more
core   +14 more sources