ebees will also tend to visit the same patches of flowers every day, as long as nectar and pollen continue to be available. While foraging, bumblebees can reach ground speeds of up to 15 m/s (54 km/h).
When bumblebees arrive at a flower, they extract nectar using their long tongue. Many species of bumblebee also exhibit what is known as "nectar robbing": instead of inserting the mouthparts into the flower normally, these bees bite directly through the base of the flower to extract nectar, avoiding pollen transfer. These bees obtain pollen from other species of flowers that they “legitimately” visit.
Pollen is removed from flowers deliberately or incidentally by bumblebees. Incidental removal occurs when bumblebees come in contact with the anthers of a flower while collecting nectar. The bumblebee's body hairs receive a dusting of pollen from the anthers which is then groomed into the pollen baskets.
Bumblebees are also capable of pollination. With certain species of plants it I difficult to remove the pollen from the anthers. In order to release the pollen, bumblebees and some species of solitary bees are able to grab onto the flower and move their flight muscles rapidly, causing the flower and anthers to vibrate, dislodging pollen. This resonant vibration is called buzz pollination. The honeybee rarely performs buzz pollination. About 8% of the flowers of the world are primarily pollinated using buzz pollination. This behavior is very important for some plants such as blueberries, cranberries, tomatoes and peppers, all of which release pollen from pores within the anthers (similar to salt being shaken from a salt shaker).
In at least a few species, once a bumblebee has visited a flower, it leaves a scent mark on the flower. This scent mark deters visitation of the flower by other bumblebees until the scent degrades wears off. It has been shown that this scent mark is a general chemical bouquet that bumblebees leave behind in different locations (e.g. nest, neutral, and food sites) and they learn to use this bouq