The composition of agricultural landcapes influences life history traits of honeybee workers

The bee mortality in the large colo- nies 14 days after the HopGuard® treatment was higher, compared to the group small colo- nies, with a mean of 12.3 % (min. 28.45 %), but

The European honeybee, Apis mellifera , is the only Apis species that does not have a natural parasitic brood mite but is nevertheless highly susceptible to at least two mites that

It has even been shown that the fertility rate of the virgin females (both encoun- tered and artificially reared virgin) was similar to the fertility rates of mated females

To investigate the changes in infestation level of mites on adult bees during periods with little or no brood rearing, we equipped 10 colonies with net screen bottoms for col-

groups were significantly higher than the con- trol whereas the flour alone group was not (adj. At least one infected mite was found in 14 of the 22 hives in the two weeks

When the worker cells on the experimental frames were sealed (day 9) in the eight queenless subunits (1B –8B), queens with a yellow cuticle (yellow queens; A. ligustica )

The conditions of single or combined factors that showed a higher association with total colony mortality were: (1) the combination of var- roa mite presence, low bee population and

On the other hand, ant workers with a vestigial spermatheca in some species maintain the muscular layers of the sperm pump, the spermatheca gland, the sper- matheca duct, and