Search results for "Apis mellifera"
showing 10 items of 16 documents
Spontaneous quantity discrimination of artificial flowers by foraging honeybees
2020
ABSTRACTMany animals need to process numerical and quantity information in order to survive. Spontaneous quantity discrimination allows differentiation between two or more quantities without reinforcement or prior training on any numerical task. It is useful for assessing food resources, aggressive interactions, predator avoidance and prey choice. Honeybees have previously demonstrated landmark counting, quantity matching, use of numerical rules, quantity discrimination and arithmetic, but have not been tested for spontaneous quantity discrimination. In bees, spontaneous quantity discrimination could be useful when assessing the quantity of flowers available in a patch and thus maximizing f…
Augstie purvi kā medus bites Apis mellifera ganības
2018
Bakalaura darba „Augstie purvi kā medus bites Apis mellifera ganības” mērķis bija novērtēt medus bitēm pieejamo ziedputekšņu daudzveidību teritorijā ar augstu sūnu purvu īpatsvaru, izmantojot bišu putekšņu nastiņu analīzi. Putekšņu nastiņas ievāktas 2015. gadā reizi trīs nedēļās no 3 bišu saimēm, kuru pastāvīgā novietne atrodas Teiču purva tuvumā. Izmantotas divas putekšņu analīzes metodes, lai pārliecinātos par datu precizitāti. Veikta biotopu un veģetācijas kartēšana 4 km bišu lidojuma zonā ap dravu. Izmantojot putekšņu analīzes rezultātus, aprēķināti Šenona un Simpsona daudzveidības indeksi. Putekšņu daudzveidība salīdzināta ar 4 dravām, kuru apkārtnē ir dažāds zemes lietojumveids, izman…
Honeybees prefer novel insect-pollinated flower shapes over bird-pollinated flower shapes
2019
AbstractPlant–pollinator interactions have a fundamental influence on flower evolution. Flower color signals are frequently tuned to the visual capabilities of important pollinators such as either bees or birds, but far less is known about whether flower shape influences the choices of pollinators. We tested European honeybee Apis mellifera preferences using novel achromatic (gray-scale) images of 12 insect-pollinated and 12 bird-pollinated native Australian flowers in Germany; thus, avoiding influences of color, odor, or prior experience. Independent bees were tested with a number of parameterized images specifically designed to assess preferences for size, shape, brightness, or the number…
Invasive bees and their impact on agriculture
2020
Fil: Aizen, Marcelo A. Universidad Nacional del Comahue. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina. Fil: Aizen, Marcelo A. Consejo Nacional de Investigaciones Científicas y Técnica. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina. Fil: Arbetman, Marina P. Universidad Nacional del Comahue. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina. Fil: Arbetman, Marina P. Consejo Nacional de Investigaciones Científicas y Técnica. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina. Fil: Chacoff, Natacha P. Universidad Nacional de Tucumán. Instituto de Ecología Regional; Argentina. Fil: Chalcoff, Vanin…
MONITORAGGIO DEI FENOMENI DI MORTALITA’ E SPOPOLAMENTO IN APIARI SICILIANI E PROVA DI COMPARAZIONE TRA LE DUE SOTTOSPECIE DI Apis mellifera PRESENTI …
2012
Different mechanisms underlie implicit visual statistical learning in honey bees and humans
2020
International audience; The ability of developing complex internal representations of the environment is considered a crucial antecedent to the emergence of humans’ higher cognitive functions. Yet it is an open question whether there is any fundamental difference in how humans and other good visual learner species naturally encode aspects of novel visual scenes. Using the same modified visual statistical learning paradigm and multielement stimuli, we investigated how human adults and honey bees ( Apis mellifera ) encode spontaneously, without dedicated training, various statistical properties of novel visual scenes. We found that, similarly to humans, honey bees automatically develop a comp…
Efficacia dei pronubi sulla produttività del melone d'inverno( Cucumis melo var. inodorus) in coltura protetta.
1998
Does Holistic Processing Require a Large Brain? Insights From Honeybees and Wasps in Fine Visual Recognition Tasks
2018
The expertise of humans for recognizing faces is largely based on holistic processing mechanism, a sophisticated cognitive process that develops with visual experience. The various visual features of a face are thus glued together and treated by the brain as a unique stimulus, facilitating robust recognition. Holistic processing is known to facilitate fine discrimination of highly similar visual stimuli, and involves specialized brain areas in humans and other primates. Although holistic processing is most typically employed with face stimuli, subjects can also learn to apply similar image analysis mechanisms when gaining expertise in discriminating novel visual objects, like becoming exper…
Sperm Quality Assessment in Honey Bee Drones
2020
The quality of honey bee drone semen is relevant in different contexts, ranging from colony productivity to pathology, toxicology and biodiversity preservation. Despite its importance, considerably less knowledge is available on this subject for the honey bee when compared to other domestic animal species. A proper assessment of sperm quality requires a multiple testing approach which discriminates between the different aspects of sperm integrity and functionality. Most studies on drone semen quality have only assessed a few parameters, such as sperm volume, sperm concentration and/or sperm plasma membrane integrity. Although more recent studies have focused on a broader variety of aspects …