巣の構成員

女王バチ


You can see the queen bee on the right at the head. The queen bee has a blacker and longer stomach than the worker bees. The queen bee is the only spawning bee in the hive.

It's bigger than all the worker bees, and it has a longer lifespan. The worker bees live only a month or two at the peak, whereas the queen lives a few years. However being a queen does not mean that she is in a better position than a worker. The decision about the colony, including how many eggs they lay, is made by the worker bees. The queen seems to be tough enough to be made to keep laying eggs day after day by working bees.

The queen bee can lay as many as 2,000 eggs a day. She puts the belly into the nest room cleaned by the worker bees and lays eggs.
The staple food of the queen bee is a nutritious food called the royal jelly. It is made by worker bees who process the fermented pollen (know as honey bread) in a place called the hypo pharyngeal gland.The royal jelly is rich in nutrients, which makes the queen live long. Also, the royal jelly has elements that induce spawn. They're made by worker bees, and the queen bee breeds by drinking them.

The work of the queen bee 

The queen bee can lay as many as 2,000 eggs a day. She puts the belly into the nest room cleaned by the worker bees and lays eggs.
The staple food of the queen bee is a nutritious food called the royal jelly. It is made by worker bees who process the fermented pollen (know as honey bread) in a place called the hypo pharyngeal gland.The royal jelly is rich in nutrients, which makes the queen live long. Also, the royal jelly has elements that induce spawn. They're made by worker bees, and the queen bee breeds by drinking them.

The birth of the queen bee 

The queen bee and the worker bee are exactly the same, including DNA, at birth, but in a special room at the bottom of the hive called the queen cell, there are eggs laid there and they become the queen bee by being continuously provided with a nutritious royal jelly. On the way, the larvae whose food that is turned from royal jelly to another bait are the worker bees.

The new queen, who grow up in the queen cell takes her guard to a once-in-a-lifetime mating flight in order to mate with drone of other nest. Then, it mates with several drones and store enough sperm to lay eggs for a lifetime.The new queen, after mating, comes back to her nest and lays eggs until she dies.

The queen bee can decide whether eggs are to be fertilized with the sperm. The worker bees come from the fertilized eggs, the drones from the unfertilized egg. Male eggs are laid in larger nest’s room during mating season. They decide whether eggs are unfertilized or fertilized depending on the size of the nest.

The queen comes out with pheromones that prevent the workers from producing eggs. When the larva is determined to be a worker bee, the spawning tube turns into a poison needle, but occasionally they are born with the spawning tube. And when the queen go away, the pheromones go away, and they start laying eggs

The absence of queen

The queen bee can be eaten by birds, sick, and so on during mating flight. It's no problem that the new queen will give birth to the new queen if honeybees have the queen cell, but it they don't have the queen cell, the queen bee will disappear.

In the case of European bees, they can turn young larva food into royal jelly and breed it into queen bee. And if it all goes all well, the colony will be saved from extinction. The problem with the Japanese bees, however, is that they don't want to breed the larvae into the queen bee and the worker bees immediately start laying eggs. The worker bees are not mating, so they can only lay unfertilized eggs. The newly fertilized egg will produce only drones. That means the colony would die out.

So it turns out that the queen bee is the lifeline  for the colony.For this reason when the queen bee loses its energy, it will be killed by the worker bees and replaced by the new queen.



References
Rowan Jacobsen『蜂はなぜ大量死したのか(原題 Fruitless Fall)』 文芸春秋、2009年
久志冨士男『ニホンミツバチが日本の農業を救う』 高文研、2009年
越中矢住子『ミツバチは本当に消えたか』 SoftBank Creative、2010年
フォーガスチャドウィック, スティーブオールトン, エマ・サラテナント, ビルフィツモーリス, ジュディー アール  『ミツバチの教科書(原題 The Bee Book)』 エクスナレッジ 、2017年
一般社団法人 日本養蜂協会 ホームページhttp://www.beekeeping.or.jp/