Brood Nest
Lexikon
The brood nest is the area of the comb where the queen lays eggs and the brood develops.
The brood nest is the area of the comb where the queen lays eggs and the brood develops. It sits roughly ball- to lens-shaped at the center of the comb structure, surrounded by a ring of pollen cells and, above that, the food ring of honey cells.
Temperature is decisive. In the brood nest area the bees maintain a fairly precise 33 to 36 degrees, regardless of the weather outside. The warmth is generated by the muscle shivering of heater bees, which sit in empty cells or press themselves against the cell caps. If the temperature drops too far, developmental damage occurs or the brood dies.
For the beekeeper this has three consequences. First, a colony needs enough bees to warm its brood nest, so expanding too early or too much causes harm. Second, the brood nest should not be broken up with foundation or empty combs while the nights are still cold. Third, a coherent, solid brood pattern is a good sign for the queen and colony health, while gaps can point to inbreeding, disease or chilling damage.