Which castes are responsible for foraging and nest maintenance in ant colonies?

The castes responsible for foraging and nest maintenance in ant colonies are primarily the worker ants. Workers are non-reproductive females that take on various tasks within the colony, such as gathering food, caring for the queen's offspring, and maintaining the nest's structure. Their role is crucial for the colony's survival, as they actively seek out food sources, whether it be foraging for insects, seeds, or plant materials, and ensure that the nest remains clean and functional.

While the queen's primary role is reproduction, she does not engage in foraging or nest maintenance. She is primarily focused on laying eggs and ensuring the colony grows. The soldier caste, if present, typically serves a protective function rather than engaging in foraging or maintenance tasks.

This understanding highlights the vital role of worker ants in the daily operations of the colony, emphasizing that they are indeed the key agents in the activities of foraging and nest upkeep.