What is the main role of worker termites in a colony?

The main role of worker termites in a colony is indeed to gather food, care for the queen, and maintain the nest. Worker termites are responsible for foraging for cellulose, which is their primary food source, derived from wood and plant material. They break down this cellulose and digest it with the help of microorganisms in their guts, providing nourishment not only for themselves but also for other members of the colony, including the queen and the nymphs.

In addition to food gathering, worker termites are crucial for the upkeep of the colony’s structure and environment. They build and repair the nest, ensuring that it remains a safe and suitable habitat. This includes managing the moisture levels and temperature within the nest, which is vital for the colony's survival.

While defending the colony against predators and exploring new areas for nesting are important functions within a termite community, these tasks are typically carried out by soldier termites and reproductive alates, respectively. Therefore, the worker termites are primarily focused on sustaining the life of the colony through their dedicated roles in foraging, nurturing, and nest maintenance.