Results 121 to 130 of about 29,600 (283)
EFFICIENCY OF CUCUMBER (Cucumis sativus L.) POLLINATION BY BUMBLEBEES (Bombus terrestris)
Acta Scientiarum Polonorum: Hortorum Cultus, 2011 The cucumber crop size depends not only on the cultivar and agrotechnical conditions but also on proper pollination of flowers. The aim of the work was the investigation of the efficiency of bumblebees used in the cultivation of cucumber on the yield ...
Janina Gajc-Wolska +3 more
doaj
A Local Replacement of \u3ci\u3eBombus Ternarius\u3c/i\u3e by \u3ci\u3eBombus Terricola\u3c/i\u3e in Northern Wisconsin (Hymenoptera: Apidae) [PDF]
, 2017 During the last few years, the bumblebee Bombus ternarius Say has markedly decreased in numbers in Vilas County in northern Wisconsin while Bombus terricola Kirby has increased. The great ecological similarity of these species suggests that interspecific
Thomson, James D
core +2 more sources
Organic farming supports spatiotemporal stability in species richness of bumblebees and butterflies
Biological Conservation, 2018 The spatiotemporal stability of wild organisms, such as flower-visiting insects, is critical to guarantee high levels of biodiversity in agroecosystems.
Romain Carrié +2 more
semanticscholar +1 more source
The dilemma of honey bee pest management in European Union: eradication or coexistence?
Insect Science, EarlyView.
Michela Bertola, Franco Mutinelli
wiley +1 more source
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
wiley +1 more source
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
Journal of Apicultural Science, 2016 Due to fewer bumblebees in rural areas these days, it is necessary to look for alternative habitats for the active protection of these very important pollinators.
Sikora Aneta +2 more
doaj +1 more source
Bumblebees can discriminate between scent-marks deposited by conspecifics [PDF]
, 2017 Bumblebees secrete a substance from their tarsi wherever they land, which can be detected by conspecifics. These secretions are referred to as scent-marks, which bumblebees are able to use as social cues.
Giuggioli, Luca +2 more
core +2 more sources
Field-level clothianidin exposure affects bumblebees but generally not their pathogens
Nature Communications, 2018 Neonicotinoids are implicated in bee declines and laboratory studies imply that they impair the bee immune system, thereby precipitating a rise in pathogen levels.
Dimitry Wintermantel +10 more
semanticscholar +1 more source
Silene, a versatile model system: from sex and genome evolution to ecology and speciation
New Phytologist, EarlyView.Summary Fundamental and applied research in evolutionary biology benefits from the use of model systems in which approaches from disparate disciplines can be integrated. Here, we review recent progress in evolutionary research on the long‐standing model system Silene, a large genus with a well‐resolved phylogeny and newly available, expanded genomic ...
Sophie Karrenberg +16 more
wiley +1 more source