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J. Free | 1962The fruit set on plum trees decreased greatly with increase in distance from pollinizer trees, and less so with increase in distance from honey-bee colonies. Trees adjacent to pollinizers had a greater set on the sides facing the pollinizers tha[...]
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J. Free ; Preece, D. A. | 1969Une détérioration des conditions de butinage décourage relativement plus le butinage chez les fortes colonies que chez les petites
article/chapitre/communication
J. Free | 1963The flower constancy of honeybees on successive days has been studied by removing and identifying pollen collected by marked pollen-gatherers. Removing pollen from the bees decreased their tendency to collect it later; chilling the bees before m[...]
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J. Free ; Simpson, J. | 1963Honigbienenvölker wurden im Winter aus ihren Stöcken genommen und in galvanisierten Eisenbehältern (Tanks) Temperaturen zwischen 20 und ?39° C ausgesetzt. Das Kohlendioxyd der aus den Behältern abgesogenen Luft wurde absorbiert und gewogen. Die [...]
article/chapitre/communication
J. Free | 1957A study has been made of the behaviour patterns associated with food transmission between worker honeybees. There is a general tendency for food to pass from the older to the younger workers of a colony, although there is a considerable passage [...]
