What kind of environments do Pharaoh ants prefer for nesting?

Pharaoh ants have a strong preference for nesting indoors, particularly in environments like hospitals or other buildings where food sources and shelter are readily available. These ants thrive in warm and humid conditions, which are often found inside structures, making spaces such as hospitals ideal for their nesting. The environment allows them to access food and moisture, which are critical for their survival and reproduction.

In contrast, outdoor gardens, forests, and arid areas like deserts do not provide the same level of shelter and consistent resources that indoor environments offer. Pharaoh ants specifically seek out locations where they can establish colonies close to human activity, as this proximity enhances their access to food and helps support their colonies effectively.