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Showing 1 to 20 of 59 for “"Honeybee"”.
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Multiscale dynamics in honeybee societies
… the social organization of a model organism, the honeybee, at multiple scales. I begin in Part I at the microbial scale, by studying the relationship between the social caste of individuals and the microbes they harbour in their gastrointestinal tracts. Using 16S rRNA sequence data, I reconstruct …
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Honeybee vision : analysis of pattern orientation
Honeybees (Apis mellifera) learn the orientation of edges or bars in order to recognise a visual pattern. A number of findings published in recent years suggest that the bee's perception of pattern orientation is independent of other visual cues and is supported by a distinct visual subsystem. The …
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Honeybee vision : analysis of pattern orientation
Honeybees (Apis mellifera) learn the orientation of edges or bars in order to recognise a visual pattern. A number of findings published in recent years suggest that the bee's perception of pattern orientation is independent of other visual cues and is supported by a distinct visual subsystem. The …
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Spectral and ocellar inputs to honeybee motion-sensitive descending neurons
… identified physiologically and anatomically. In honeybees Kaiser (1975) established that the spectral sensitivity of optomotor responses in bees almost exactly matched that of the green photoreceptors, suggesting an exclusive input from green photoreceptors. However, physiological studies showed …
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Spectral and ocellar inputs to honeybee motion-sensitive descending neurons
… identified physiologically and anatomically. In honeybees Kaiser (1975) established that the spectral sensitivity of optomotor responses in bees almost exactly matched that of the green photoreceptors, suggesting an exclusive input from green photoreceptors. However, physiological studies showed …
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Modelling the Effects of Stressors and Treatment in a Honeybee Colony
Honeybees are agriculturally important through their pollination work and production of honey. They are also vulnerable to the accumulation of stressors, which cause drastic colony losses. It is important to understand the effect of stress on a hive so that the cost of testing, treatment, and rest …
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Environmental influences on the development of the female honeybee brain Apis mellifera
Für die Honigbiene spielt der Geruchssinn eine entscheidende Rolle bei der Kommunikation innerhalb des Sozialstaates. Kastenspezifische, auf uweltbedingten Einflüssen basierende sowie altersbedingte Unterschiede im olfaktorisch gesteuerten Verhalten liefern ein hervorragendes Modellsystem für diese …
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Olfactory learning, its development and changing role in Honeybee (Apis Mellifera) behaviour
The honeybee (Apis mellifera) is capable of showing a wide variety of cognitive tasks, and can be readily conditioned in the laboratory to specific odours, paired with a sucrose reward, using the proboscis extension reflex (PER) learning paradigm. This thesis aims to establish any differences in …
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An Artificial Honeybee Colony Algorithm to Quantify Adaptability via Resilience for Space System Architectures
… optimization algorithm, the adaptive artificial honeybee colony (AHC), to search for and generate resilient (or optimal) solutions to highly interconnected or nonlinear problems. The AHC is an agent-based algorithm that integrates pollination models, particle swarm dynamics, and mutualistic …
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Haemolymph sugar homeostasis and the control of the proventriculus in the honeybee (Apis mellifera carnica L.)
… the activity of the proventriculus in the honeybee. Therefore free-flying foragers were trained to collect con-trolled amounts of different sugar solutions. Immediately after feeding, metabolic rates were measured over different periods of time, then crop-emptying rates and haemolymph sugar …
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Uncovering Markers for Honey Production and Defensive Behaviour Using Pooled Genome-Wide Data with the Honeybee (Apis Mellifera)
The honeybee (Apis mellifera) has been an important insect for both the study of social insect behaviour and agriculture. Honey production and defensive behaviour are honeybees two notable and economically valuable traits. Here we perform a genome-wide association study on 925 honeybee colonies …
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Glutamic Acid Decarboxylase and the Gamma-Aminobutyric Acid Pathway in the Supraesophageal Ganglion of the Honeybee, Apis Mellifera (Hymenoptera, Apidae)
Made available in DSpace on 2014-12-11T18:05:31Z (GMT). No. of bitstreams: 1 7105098.pdf: 3708700 bytes, checksum: fe7964e6cd4b948a191c97559688f42f (MD5) Previous issue date: 1970
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Are droneflies batesian mimics of honeybees?
… thesis explores the presumed Batesian mimicry of honeybees (Apis mellifera) (Hymenoptera:Apidae) by droneflies (Eristalis species) (Diptera:Syrphidae). Because droneflies do not show particularly close morphological similarity to honeybees, apart possibly in their size, the work has mainly …
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Plant virus detection and diversity in a mixed tree fruit orchard determined through metagenomic-based analysis of honeybee (Apis mellifera) collected samples
… be a major transmission route for plant viruses. Honeybees (Apis mellifera) collect pollen and nectar from multiple plant individuals, and commercial honeybee pollination services are routinely used in tree fruit production systems. Applying genomics-based sequencing technologies on bees and …
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Extracellular Signal-Regulated Kinase 7, A Fast Evolving Map Kinase Under Positive Selection, Is Associated With Multiple Levels Of Honeybee Behavioral Plasticity
Submitted by Jason Ebaugh (ebaugh@illinois.edu) on 2009-07-04T21:26:59Z No. of bitstreams: 1 EbaughJasonDissertation.pdf: 9370507 bytes, checksum: 6fc1987ff7690d3a540912672da149c0 (MD5)
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Functional characterisation of aphid, Myzus persicae, nicotinic acetylcholine receptors and identification of a novel biogenic amine-gated ion channel from the honeybee, Apis mellifera
… partial agonists. The Apis mellifera, European honeybee, α5 subunit formed a homomeric nAChR in oocytes without any chaperones. This was sensitive to 0.1 μM α-bungarotoxin and responded to both acetylcholine and choline but with low affinity, as shown by EC50 values in the millimolar range (2.65 …
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Chronobiological plasticity in Honeybee and its association with differences in the organization of the molecular pathway between central and peripheral clocks: the brain and flight muscle tissues.
… that entrain the locomotor activity rhythm in honeybees, as notably showed by the robustness of circadian activity of young nurses soon after their release far from social interactions with the conspecifics. Such context dependent plasticity in circadian behavior was often associated with a …
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