HP, that is an very intelligent well thought out response that I was hoping for. I doubt if my bees can recognize me as an individual rather a human. Can the bees distinguish between folks, say a child verses a man. I don?t know
On subject but a different critter:
Ticks, a colony of ticks for twelve years was maintained in a single controlled room. The ticks were moved to a new controlled room and every single tick died. Same person maintained the ticks, same food, same container, everything the same except the ticks were moved, to a new room, about 50 feet, they all died. Reason unknown to this day. Medically speaking to lose such a colony of ticks maintained for years was devastating for medical researchers.
minks. In same facility, minks were raised due to the fact the mink is the only know host for a specific viral disease of children. Every year the single caretaker would go on vacation. The replacement wearing same boots, same white coat, same respirator, feeding exact same food caused the female mink to abort. Every year this happened. Minks certainly can distinguish the slightest change, the change of a caretaker.
Why the death of ticks and minks to abort their young: 42, is the best answer I can give. Brother Adams makes no mention of bees ability to know their keeper. If any person would know, he would.
I think your answer, HP, is spot on, the ability to determine, interpret threats relative to their environment. I would wager via evolutionary genetics some bees interpretation of perceived threats evolved to meet the environmental factors such as the African honey bees with their host of invaders from honey badgers to man.
I also agree with above beeks.