Outdoor seating, a common feature in urban and suburban areas, can significantly alter local ecosystems, particularly for small soil-dwelling organisms like isopods. These crustaceans, often called "pill bugs" or "roly-polies," thrive in moist, shaded environments with ample organic matter. The introduction of benches, tables, or other seating structures disrupts their habitat by compacting soil, reducing moisture retention, and limiting access to decaying plant material—their primary food source.

Studies suggest that frequent human activity around seating areas further exacerbates the problem. Foot traffic crushes isopods or exposes them to predators, while litter and chemical residues from treated wood or cleaning products may poison them. Conversely, some seating designs with gaps or crevices can unintentionally create microhabitats, offering temporary shelter.

To mitigate negative effects, urban planners can opt for permeable seating materials, maintain surrounding vegetation, and avoid overuse of pesticides. Understanding these interactions helps balance human comfort with biodiversity conservation in shared spaces.