The bee not only gathers honey, pollen and propolis, but while foraging it pollinates many flowers. What is the importance of honeybees for the pollination of cultivated and wild plants? What is the economic importance of bees for agriculture? The article
Die Bestäubung der Blütenpflanzen durch Bienen - Biologie, Ökologie, Ökonomie (German (PDF, 675 kB, 04.10.2016) and French (PDF, 655 kB, 04.10.2016)) Pollination of flowering plants by bees - biology, ecology and economy
A. Pickhardt, P. Fluri (2000)
Last modification 07.11.2016