Results 161 to 170 of about 226,278 (198)

Experimental infection of acute bee paralysis virus induces differential responses of selected honey bee immune genes, independent of varroa resistance. [PDF]

Sci Rep
Ruan X, Noël A, Thaduri S, de Miranda JR, Locke B.   +4 more
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The sounds produced by flies and bees

Zeitschrift f�r Vergleichende Physiologie, 1967
The sounds produced by the thoracic flight machinery of bees and flies appear to be composed of two main vibration modes. The lower frequency one corresponds to the wingbeat frequency. The higher frequency vibration, which is in the kcps. range, is reset in phase on every wingbeat half-cycle.
Harald Esch, Donald Wilson
openaire   +1 more source

Biochemistry of insect learning: Lessons from bees and flies

Insect Biochemistry and Molecular Biology, 1996
Recent advances in the study of learning in insects are examined with an emphasis on two of the most powerful model systems, the honeybee (Apis mellifera) and the fruit fly (Drosophila melanogaster). The honeybee exhibits easily manipulated feeding behavior coupled with extremely high mnemonic fidelity.
V H, Meller, R L, Davis
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Working Memory in Bees: Also in Flies?

Journal of Neurogenetics, 2009
Decision making requires reference to both actual and remote information in the context of the requirements of the animal. Here, I explore a cognitive approach to decision making in honeybees and ask the question whether flies may share the faculties observed in bees.
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Temperature Regulation in Bee- and Wasp-Mimicking Syrphid Flies

Journal of Experimental Biology, 1987
ABSTRACT Thoracic temperatures were measured in 12 syrphid species. During field activity the flies maintained thoracic temperatures near 30°C by a combination of basking and endothermy. In the 10 species which were mimics of Hymenoptera, thoracic temperatures averaged a few degrees below those of their models. All of the syrphids tested
Kenneth R. Morgan, Bernd Heinrich
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Wingbeat frequency, temperature and body size in bees and flies

Physiological Entomology, 1984
ABSTRACT. This paper describes the relationship between ambient temperature and wingbeat frequency in bees and flies of different sizes, and presents new data from insects in free fight. The slope of the relationship changes with the size of the insect, and was different for insects in hovering flight compared ...
D. M. UNWIN, SARAH A. CORBET
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How many bees? How many flies?

Teaching Children Mathematics, 2011
Descriptive narratives and teacher reflections highlight children's mathematical thinking and learning. Watching children's actions and gestures, as well as listening to their mathematical conversations as they work, gives adults insight about interesting strategies, alternative representations, and sources of difficulty.
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Bee-Flies (Bombylius spp., Bombyliidae, Diptera) and the Pollination of Flowers

Flora: Morphology, Distribution, Functional Ecology of Plants, 2001
Summary The paper reviews briefly the presently available information on bee-flies ( Bombylius , Bombyliidae, Diptera) and their role in the pollination of flowers. It combines literature data and the results of field studies carried out over three consecutive flowering seasons in the surroundings of Vienna (Lower Austria). Field work concentrated on
Christoph Kastinger, Anton Weber
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Food-stealing flies force bees into work

New Scientist, 2008
Starved, stunted bees are too small to found colonies of their own, so they stay home and help their ...
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