... and cognitive functioning, this predicts such differences in cognitive style to be reflected at the level of the brain. We tested this idea in honeybees by first classifying individuals into slow and fast cognitive phenotypes based on a learning assay and then measuring their brain respiration with high...

...Silvie Dostálková; Pavel Dobeš; Martin Kunc; Jana Hurychová; Mária Škrabišová; Marek Petřivalský; Dalibor Titěra; Jaroslav Havlík; Pavel Hyršl; Jiří Danihlík ABSTRACT In the temperate climates of central Europe and North America, two distinct honeybee ( Apis mellifera ) populations are found...

...Morgane Nouvian; Judith Reinhard; Martin Giurfa ABSTRACT Honeybees ( Apis mellifera ) are insects living in colonies with a complex social organization. Their nest contains food stores in the form of honey and pollen, as well as the brood, the queen and the bees themselves. These resources have...

... behaviour in a closed-loop experiment. To investigate this issue, we conducted experiments with tethered honeybees walking on an air-supported trackball and fixating a visual object in closed-loop. Bees walked faster and along straighter paths when the motion of the trackball was measured in the classical...

...Jianing Wu; Rengao Zhu; Shaoze Yan; Yunqiang Yang ABSTRACT The honeybee's tongue (glossa) is covered with bushy hairs and resembles a mop or a brush. We examined the dimensions of glossal hairs of the Italian honeybee ( Apis mellifera ligustica ) and found that the average length of hairs increased...

...Stevanus Rio Tedjakumala; Martin Giurfa Summary Honeybees constitute established model organisms for the study of appetitive learning and memory. In recent years, the establishment of the technique of olfactory conditioning of the sting extension response (SER) has yielded new insights...

...Katelyn M. Dovey; Jordan R. Kemfort; William F. Towne SUMMARY Honeybees have at least three compass mechanisms: a magnetic compass; a celestial or sun compass, based on the daily rotation of the sun and sun-linked skylight patterns; and a backup celestial compass based on a memory of the sun's...

...Lisa Beyaert; Uwe Greggers; Randolf Menzel SUMMARY Sleep is known to support memory consolidation in animals, including humans. Here we ask whether consolidation of novel navigation memory in honeybees depends on sleep. Foragers were exposed to a forced navigation task in which they learned to home...

...Heli Havukainen; Jarl Underhaug; Florian Wolschin; Gro Amdam; Øyvind Halskau SUMMARY Vitellogenin (Vg) is an egg-yolk precursor protein in most oviparous species. In honeybee ( Apis mellifera ), the protein (AmVg) also affects social behavior and life-span plasticity. Despite its manifold functions...

...Melanie Haehnel; Randolf Menzel SUMMARY Honeybees learn to associate an odor with sucrose reward under conditions that allow the monitoring of neural activity by imaging Ca 2+ transients in morphologically identified neurons. Here we report such recordings from mushroom body extrinsic neurons...

...Theo Mota; Edith Roussel; Jean-Christophe Sandoz; Martin Giurfa SUMMARY Visual performances of honeybees have been extensively studied using free-flying individuals trained to choose visual stimuli paired with sucrose reward. By contrast, harnessed bees in the laboratory were not thought...

...Heli Havukainen; Øyvind Halskau; Lars Skjaerven; Bente Smedal; Gro V. Amdam SUMMARY Vitellogenin, an egg-yolk protein precursor common to oviparous animals, is found abundantly in honeybee workers – a caste of helpers that do not usually lay eggs. Instead, honeybee vitellogenin (180 kDa...

... in natural environments. However, this matching scheme works only if relevant landmarks can be detected by their contrast and texture. Therefore, we tested how honeybees perform in localising a goal if the landmarks can hardly be distinguished from the background by such cues. We recorded the honeybees...

...A. Avarguès-Weber; G. Portelli; J. Benard; A. Dyer; M. Giurfa SUMMARY We studied whether honeybees can distinguish face-like configurations by using standardized stimuli commonly employed in primate and human visual research. Furthermore, we studied whether, irrespective of their capacity...

...C. Evangelista; P. Kraft; M. Dacke; J. Reinhard; M. V. Srinivasan SUMMARY Although landing is a crucial part of insect flight, it has attracted relatively little study. Here, we investigate, for the first time, the final moments of a honeybee's ( Apis mellifera ) landing manoeuvre. Using high-speed...

...Tobin J. Hammer; Curtis Hata; James C. Nieh SUMMARY Honeybee foragers are exposed to thermal stimuli when collecting food outside and receiving food rewards inside the nest. In both contexts, there is an opportunity for foragers to associate warmth with food rewards. However, honeybee thermal...

... honeybees( Apis mellifera ), which allows bees to learn colours after just a few training trials. We further analysed how visual learning and discrimination is influenced by the quality of a stimulus by systematically varying the chromatic and achromatic properties of the stimuli. Using differential...

...). As a consequence, a conditioned response is emitted by the animal upon further CS presentations. In such a situation, the subject exhibits a reflex response, so that whether the CS thereby acquires a positive or a negative value for the animal is difficult to assess. In honeybees, Apis mellifera , an odour(CS) can...

...William F. Towne SUMMARY Many species learn the sun's daily pattern of azimuthal movement (the solar ephemeris function) for use in sun-compass orientation. In honeybees, this learning is accomplished with much innate guidance and yields stubborn,imprinting-like retention of certain aspects...

...William F. Towne; Heather Moscrip SUMMARY Honeybees connect the sun's daily pattern of azimuthal movement to some aspect of the landscape around their nests. In the present study, we ask what aspect of the landscape is used in this context – the entire landscape panorama or only sectors seen along...