🐞 Honeybee Species, Biology, and Colony Organization

Honeybee colonies function as highly organized biological systems, making them central to both honey production and crop pollination.

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Important Honeybee Species

Four species of honeybees are of primary significance in India and worldwide. Apis cerana indica (Indian hive bee) is the native domesticated species of the Indian subcontinent, well adapted to tropical conditions, and kept in movable-frame hives. It produces 6-8 kg of honey per colony per year and is gentle in temperament. Apis mellifera (European or Italian bee) was introduced into India in the 1960s and is now the most commercially important species due to its higher honey yield of 25-40 kg per colony per year, larger colony size, and amenability to modern management techniques.

Apis dorsata (rock bee or giant bee) is the largest honeybee species and builds single, large, exposed combs on tree branches, cliff faces, and buildings. It is the most prolific honey producer among wild bees, yielding up to 50-80 kg per colony, but it cannot be domesticated due to its migratory and aggressive behaviour. Apis florea (little bee or dwarf bee) is the smallest species, building a single small comb on bushes and hedges. It produces only about 200-500 g of honey per colony and is primarily valued for its pollination services in gardens and orchards.

Castes and Colony Organization

A honeybee colony is a highly organized superorganism composed of three castes. The queen is the only fertile female, responsible for egg laying. She can lay up to 1,500-2,000 eggs per day and secretes queen pheromone (queen substance) that maintains colony cohesion and suppresses ovary development in workers. Each colony has a single mated queen.

Workers are sterile females that perform all colony tasks. Their duties change with age, a phenomenon called age polyethism or temporal division of labour. Young workers (1-3 days) clean cells; nurse bees (3-10 days) feed larvae with royal jelly and bee bread; middle-aged workers (10-18 days) build comb, process nectar, and guard the hive entrance; and foragers (18 days onwards) collect nectar, pollen, water, and propolis.

Drones are male bees whose sole function is to mate with virgin queens during nuptial flights. They develop from unfertilized eggs by parthenogenesis (arrhenotokous reproduction), possess 16 chromosomes (haploid) compared to 32 in females (diploid), and are expelled from the colony before winter or during dearth periods.

Communication in the Colony

Honeybees communicate through pheromones and dances. Karl von Frisch described the round dance (food source within 50-100 m) and the waggle dance (food source beyond 100 m), in which the angle relative to the vertical indicates direction with respect to the sun, and the duration of the waggle run indicates distance. This sophisticated communication system enables efficient foraging across large areas.

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Summary Cheat Sheet

• Key species in India are Apis cerana indica, Apis mellifera, Apis dorsata, and Apis florea.
• Colony castes include queen, workers, and drones with specialized roles.
• Worker duties change with age (age polyethism).
• Dance language and pheromones enable efficient colony-level communication.

References

1 source • [1]

[1]

Standard apiculture and honeybee biology references used for lesson preparation.