Results 161 to 170 of about 1,746 (191)

Behavioural response of drone honey bees, Apis mellifera carnica and Apis mellifera scutellata, to worker-produced pheromone components

Journal of Apicultural Research, 2000
SUMMARYTo investigate the behavioural response of drone honey bees, Apis mellifera carnica and Apis mellifera scutellata, to the pheromone components isopentyl acetate (IPA) and geraniol, and the non-pheromone octanal, we conducted three different types of experiment: (1), in a glass arena; (2), in a Y-shaped maze; and (3), in a classical conditioning ...
Robin M Crewe
exaly   +2 more sources

Retrograde amnesia in honeybees ( Apis mellifera carnica ).

Journal of Comparative and Physiological Psychology, 1976
After a single reward on a spectral color, freely flying honeybees show retrograde amnesia when an electroconvulsive shock, CO2 narcosis, N2 narcosis, or cooling (to 1 degrees C) is applied after learning. Retrograde amnesia is measurable with these four treatments up to 7 min after the reward.
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Glycogen in honeybee queens, workers and drones (Apis mellifera carnica Pollm.)

Journal of Insect Physiology, 1997
Honey bees (Apis mellifera carnica Pollm.) have low glycogen reserves in summer. Upon emergence drones have significantly larger amounts per unit weight when emerging, than workers; perhaps as adaption to the risk of not being fed as intensely as young workers.
K, Crailsheim, U, Panzenböck
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A comparison of the dance language in Apis mellifera carnica and Apis florea reveals striking similarities

Journal of Comparative Physiology A: Sensory, Neural, and Behavioral Physiology, 2004
Honeybees have a dance language by which successful foragers inform nestmates about attractive food patches. The classical concept of dialects in the dance language of honeybees points to two differences in the dances by different species and races, firstly in the flight distance at which the dancers start performing waggle dances instead of round ...
M, Sen Sarma, H, Esch, J, Tautz
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Activity of Attendants After Licking and Palpating the Queen in Honeybee (Apis Mellifera Carnica)

Netherlands Journal of Zoology, 2001
A worker-queen contact in the retinue of the honeybee (Apis mellifera) enables transfer of queen pheromones to workers. Behaviours of workers attending the queen and post-contact behaviours were recorded. The most commonly observed activities of workers in retinue were licking and antennating the queen.
Jasna Kralj, Janko Božič
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The control of the proventriculus in the honeybee (Apis mellifera carnica L.) II. Feedback mechanisms

Journal of Insect Physiology, 2002
The mechanisms underlying the control of solution transport rates through the proventriculus in foraging honeybees were investigated in individuals trained to collect defined amounts of sugar solutions. Following feeding, bees were injected either with metabolisable (glucose, fructose, trehalose), or non-metabolisable (sorbose) sugars, in order to ...
Jasmina, Blatt, Flavio, Roces
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Etologija vrste Apis mellifera carnica

2021
The ethology of bees is a branch of the entire biology of bees, which deals with their characteristic behaviors in natural conditions. The primary task of ethology is to explain the relationship between a behavior and its cause. Bees are social insects, which, thanks to the formation of a group with a social hierarchy and a division of labor within the
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Microcalorimetric investigations of the energy metabolism of honeybee workers, apis mellifera carnica

Thermochimica Acta, 1989
Abstract Heat production measurements were performed for individual workers of different age and for worker groups of the honeybee Apis mellifera carnica by means of a 100-ml-Calvet-calorimeter. Individual worker bees show a strong positive correlation of the weight specific heat production rate with age. Increasing numbers of workers together in a
L. Fahrenholz, I. Lamprecht, B. Schricker   +2 more
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Calorimetric investigations of the different castes of honey bees, Apis mellifera carnica

Journal of Comparative Physiology B, 1992
Honey bees of different age and castes were investigated calorimetrically at 20, 25 and 30 °C. Experiments were completed by endoscopic observation of the insects in the visible and the near infrared range and by acoustical monitoring and subsequent frequency analysis of various locomotor activities.
L. Fahrenholz, I. Lamprecht, B. Schricker   +2 more
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Chemometric Classification of Comb and Cuticular Waxes of the Honeybee Apis Mellifera Carnica

Journal of Chemical Ecology, 2000
Waxes are important as building material and for the chemical communication of the honeybee Apis mellifera carnica. In this study chemometric tools were established for classifying the different waxes inside the hive. By using gas chromatography in combination with mass spectrometry, components of different types of waxes were analyzed.
Birgit Fröhlich, Jürgen Tautz, Markus Riederer   +2 more
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