In beekeeping, globalization has led to massive shifts in the distribution areas of the various bee subspecies. Instead of the territories originally occupied by a single breed, it is very common to have an amalgamation of various subspecies within one area. This leads to introgression into the original genepools.
Not only do the hybrids displace the original subspecies, the hybridization also affects the integrity or unity of the ancestral gene pool. With this, jointly developed and adapted gene combinations are lost. These are given particularly high adaptive properties.
For this reason, in many places pure breeding is being carried out and often not only strives to increase certain properties, but primarily focuses on breeding within a naturally occurring gene pool, in order not to compromise the integrity of this pool.