BOUMRY: trochu si odpovidam sam (protoze me to opravdu zajima:). tady je pan, ktery ma s vcelou tmavou chovatelske zkusenosti:
http://www.dave-cushman.net/bee/whyamm.html
..."One of the attractions for importing other pure bred sub-species is docility. Beekeepers have seen how gentle both the New Zealand Italian and the Carnica bees are, and working with such bees is much more pleasant than handling bad tempered colonies. Yet the very act of importing these sub-species aggravates the problem of bad-temper generally, for one of the prime reasons for bad-temper is crossing different sub-species of bees (This is termed F2 Aggression. R.P.).
The Black bee has an undeserved reputation for being bad-tempered. Pure bred Black bees selected for docility are just as easy to handle as New Zealand Italians. One only has to look at some of the old bee photographs to see that very little protection was used by beekeepers in the last century."...
...
ale bouzel uz nezije: Dave Cushman's website is a huge resource that is considered by many to be the world's most comprehensive and authoritative beekeeping website. Dave was disabled in his latter years, with limited physical ability. He spent much of his time finding or writing material for this facility. He was rightly proud of it. Dave passed away on 22nd February 2011 and I am continuing to maintain it according to his wishes.