What unique capability helps larger Formosan termite colonies thrive?

The unique capability that allows larger Formosan termite colonies to thrive is their greater than normal reproductive capabilities. Formosan termites are known for their prolific breeding, which enables their colonies to grow rapidly and establish dominance in their environments. A queen can produce thousands of eggs daily, leading to a significant population increase that can overwhelm natural predators and competitors. This high reproductive rate contributes to their ability to take over areas and cause extensive damage to wooden structures, making them particularly troublesome for pest control efforts.

While the other options mention interesting capabilities — such as defense mechanisms in social structures or potential advantages in mobility — it is primarily the reproductive capabilities that give Formosan termites their edge in establishing large and resilient colonies. This reproductive strategy plays a crucial role in their survival and expansion, particularly in regions where they can proliferate without significant intervention.