Test your knowledge with our quizzes `
On this plateforme you can test your knowledge and exchange your experiences with other beekeeper. You might also ask questions. Our experts will give you an answer.
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Depiction:
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- An enzyme that transforms glucose into honey.
- An enzyme found only in bees to produce honey.
- A very common enzyme that splits a disaccharide into two monosaccharides.
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On a fine day at the end of May, you observe numerous bees clustered in front of the hive entrance:
You infer that:
- A swarm is preparing to depart.
- The “climate bees” are ventilating to reduce the humidity of the abundant spring nectar flow.
- The workers are performing a calling behaviour to guide the foragers back to the hive.
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- its surface-to-volume ratio increases
- its surface-to-volume ratio approaches that of a sphere
- its surface-to-volume ratio decreases
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(one or more answers possible)
- It is a protein that slows down the “ageing” of worker bees?
- It modulates foraging behaviour by favouring pollen collection over nectar collection?
- It does not extend the lifespan of the queen?
- It is synthesised in the bee’s fat body?
- It does not stimulate the hypopharyngeal glands and the production of royal jelly?
- It is not involved in the immune mechanisms of bees?
- It modulates the social life of the entire colony?
- Accepts the introduction of a mated queen
- Accepts the introduction of a virgin queen
- Accepts the introduction of a queen cell whose pupa is about to emerge
- Can rear a queen cell from fresh open brood
- Allows an acceleration of varroa reproduction
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The majestic horse chestnut, whose flowering is more pollen-rich than nectar-rich and begins in April–May, provides bees with a valuable cue that attracts them to flowers that have not yet been pollinated.
What is it ?
1. Less than 48 hours
2. Up to 5 days
3. About 2 weeks
4. Up to 1 year
- Detail of a contemporary abstract sculpture, “Elliptical Sequins,” with acrylic paint applied using a palette knife
- Detail of the hair of the goddess Artemis, generated by AI
- Asian hornet nest
- Other
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What is the annual amount of water required by a well-developed production colony?
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<p><strong>A winter cluster of 2 kg of bees …</strong></p>
<ol>
<li>consumes <strong>more</strong> energy at 2 °C than at an internal hive temperature of 15 °C.</li>
<li>consumes <strong>less</strong> energy at 2 °C than at an internal hive temperature of 15 °C.</li>
<li>consumes <strong>the same amount of energy</strong> at 2 °C and at 15 °C because the cluster contracts as the internal hive temperature decreases.</li>
</ol>
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What do you see?
How do you interpret this bottom drawer (20 November)?
Which answer(s) is/are correct?
In spring:
- The approximately 500 gynes (fertilised queens) that left the secondary nest hidden at the top of a tree and survived the winter build a primary nest to found a new colony.
- In spring, the gynes (fertilised queens) emerge from their winter shelter to feed on nectar.
- The founding queens (queens building an embryonic nest) lay diploid eggs from which workers emerge that are approximately the same size as the queens.
- The gynes (fertilised queens) engage in fierce fighting to usurp embryonic nests.
- The first workers reared by the founding queens are larger than the workers reared by subsequent generations of workers.
- The workers of the Asian hornet feed their queen with a royal jelly–like substance reminiscent of that produced by nurse bees of the honey bee.
Water is indispensable for the basic metabolism of each individual in the colony. The “nurse bees” use it to produce royal jelly and brood food; the “climate bees” use it for thermoregulation and for controlling humidity inside the hive …
How much water does a colony need over the course of a year?
- About 20 litres
- About 33 litres
- More than 50 litres
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How many days after emergence does it take for the queen to reach sexual maturity, and when does she begin laying eggs?
Which answers are correct?
1. Epigenetics directly modifies the DNA sequence.
2. Epigenetics modulates gene expression without modifying the genome.
3. Epigenetic mechanisms are always stably transmitted across several generations.
4. Epigenetics is influenced only by hereditary factors and not by the environment.
5. Unlike genetics, epigenetic mechanisms are reversible.
6. Epigenetic modifications have no effect on the phenotype.
- For the queen during the six days preceding capping
- For the workers
- For the drones
- For all larvae
- By transmitting viruses
- By increasing the bees’ susceptibility to diseases
- By destroying the colonies’ food reserves
- By reducing the lifespan of worker bees
- By decreasing the quality of the food produced by nurse bees
- By causing varroosis, which gradually weakens the colonies
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- ~+15°C
- ~+5°C
- ~-7°C
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Today’s inspection: a small colony, created in July 2020 with a queen that emerged in June 2020 and is marked, appears to be somewhat behind compared to its neighboring colonies (only 3 frames covered). On 2 frames, there are palm-sized, fairly compact patches of worker brood, accompanied by a few scattered drone cells at the periphery. A closer inspection reveals unusually fresh egg-laying. What do you think?
- No, they live solitarily both on bees and in the brood.
- Yes, by high-frequency vibrations they detect their conspecifics.
- Yes, through the release of pheromones.
- Yes, through changes in the coloration of their cuticle, with immature stages being whitish and adults reddish-brown.
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- The more the temperature inside the hive decreases, the more the temperature of the core increases.
- The more the temperature inside the hive decreases, the more the temperature of the outer mantle of the cluster increases.
- The more the temperature inside the hive decreases, the more the temperature of the outer mantle of the cluster decreases, potentially dropping to as low as +2°C.
Are the drones, sons of a selectively bred queen of the “F0” generation, genetically identical (same DNA)?
- YES
- NO
The compound eye of the bee allows it:
- to see the color red, provided it does not absorb in the ultraviolet range
- to detect a flower moved by the wind better than a stationary flower
- to see in the dark, during the night
What is the average annual amount of pollen collected by a well-developed production colony?
- 5 kg
- 30 kg
- 220 kg
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Photo of a bee with wings held in a cross (or K-shaped) position.
What should be thought about this bee?
- The insect positions its wings to release a trail pheromone that allows nearby foragers to relocate the nectar source.
- In case of high temperature, the bee stretches its wings to facilitate heat dissipation.
- Bee infected with acarine disease
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What is the annual amount of nectar/honeydew collected by a well-developed production colony?
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- Insects equipped with a stinger connected to a venom sac
- Insects with two pairs of transparent wings
- Strictly pollinating insects
- Insects whose thorax is separated from the abdomen by a “wasp waist”
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How many ommatidia (light-sensitive receptors) make up the eye of a queen / a worker / a drone?
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Given that a Dadant brood frame measures 410 mm/265 mm (internal dimensions) and that a cell is approximately ~5 mm wide, how many cells are there on both sides of this frame?
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Why does the egg, which is in a “vertical” position on the first day after being laid, gradually move into a “horizontal” position by the third day, shortly before hatching?
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- Indicator of the toxicity of a substance.
- Dose of a substance that kills all exposed animals.
- Concentration of an inhaled molecule that disorients 50 bees.
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Do you recognize these diseases?
The most important thing is not to know all diseases, but to recognize that the colony is healthy!
- Like other arthropods, the vision of the varroa mite is similar to that of the honey bee with regard to the colour spectrum (ultraviolet).
- The vision of the varroa mite is similar to that of humans with regard to the perception of the colour red.
- Is completely absent.
- The achromatopsic vision of the varroa mite allows it to distinguish only between black and white.
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- −5 °C
- +2 °C
- +15 °C
- Other
