In honey bees, Danka, Rinderer, Spivak, and Kefuss
(2013) defined resistance as the ability of a hive to
“keep V. destructor at a relatively low level”. Efforts to
document resistance to varroa focus on the maintenance
of colony fitness being associated with reduced
numbers of infesting mites. Fitness in honey bees can be
measured in a number of ways such as amount of
brood, colony size, survival, queen, and honey production.
Although tolerance to the haplotype of varroa found
in Europe has not been demonstrated
(according to the
above definitions), efforts to do so would have to focus
on the maintenance of colony fitness with elevated numbers
of infesting mites.