approaching to the target

flower insect invertebrate bee wildflower honeybee nature green yellow pollen petal pollinator apis mellifera honey species apidae family bees worldwide western european continent antarctica production crop pollination 2600bc eastern cerana south southeast east asia 17th century colonists subspecies america: german ligustica italian crops nectar clear liquid water complex sugars biological mixture inverted glucose fructose threatened pests diseases colony collapse maya biosphere reserve mbr petén department northern guatemala localized target approaching