Biology and physiology of the bee
The bee is an insect belonging to the order Hymenoptera (together with wasps, ants, etc.). Hymenopterans are equipped with two pairs of wings, three pairs of legs, and articulated appendages. Their body is composed of three distinct parts: the head, the thorax, and the abdomen.
Honey bee biology and colony organization – a pedagogical overview
This ITSAP teaching module provides a structured introduction to honey bee biology and the functioning of the colony as a superorganism. It is designed for training in beekeeping schools and links biological fundamentals with practical observations.
The first section introduces classification and diversity. Apis mellifera belongs to the Apidae family within the Hymenoptera. While most apid species are solitary, Apis mellifera is a social species native to Africa, Europe and parts of Asia, later spread worldwide by humans.
The module then addresses origin and geographical races. Apis mellifera includes around 25 inter-fertile subspecies. Commonly used types include Carniolan, Italian, Caucasian, the dark European bee and Buckfast lines. Behavioral traits are presented as variable and strongly influenced by selection and environment.
Anatomy is described through the three body segments: head, thorax and abdomen. The thorax contains the flight and heat-producing muscles, essential for thermoregulation and ventilation. Bees have compound eyes and ocelli, perceive ultraviolet light and rely heavily on olfaction via their antennae. Oxygen is supplied through a tracheal system, while hemolymph transports nutrients.
Caste differentiation is a central topic. Workers perform age-related tasks ranging from cleaning and nursing to comb building, guarding and foraging. The queen is specialized for reproduction and differs only by larval nutrition. Drones are haploid males dedicated to mating and are expelled from the colony at the end of the season.
The module also details colony resources: nectar and honeydew as energy sources, pollen for proteins and vitamins, water for hydration and brood care, and propolis for structural and antimicrobial functions. Honey production involves trophallaxis, enzymatic activity and water evaporation.
The second main section focuses on colony organization. The annual cycle includes winter clustering, spring buildup, reproductive and swarming phases, and preparation for overwintering. Communication within the colony relies on pheromones, trophallaxis, acoustic signals and the waggle dance, which conveys information about the direction and distance of food sources.
In conclusion, this module offers a coherent and comprehensive educational overview of honey bee biology and social organization, forming a solid foundation for beekeeping practice and further training.
► Source: http://mallette-pedagogique.itsap.asso.fr/
See also:
- Internal Anatomy: General Overview
- Apis mellifera & Other Apis
- The Bee Dance
- The Winter Cluster
- All About Swarming