Predatory behavior, nesting habits, and impacts on honey bees (Apis mellifera) of an invasive hornet (Vespa tropica) on the island of Guam
Fig 3
Reported losses of managed Apis mellifera colonies on Guam due to Vespa tropica attack.
(A) Per reporting apiary, the number of managed honey bee colonies that were considered an economic loss due to attack by V. tropica, from the first detection of V. tropica in 2016 until the end of 2024. (B) The number of colonies reported lost due to V. tropica attack out of the total number of managed hives per year (left y-axis), which yielded the percentage of managed colonies for which loss was attributed to V. tropica attack (right y-axis).