Outdoor seating areas, common in urban parks and cafes, may subtly alter local nematode populations—tiny worms crucial to soil health. These microfauna thrive in undisturbed soil but face disruptions from human activity. When benches, tables, or heavy foot traffic compact the ground, oxygen and moisture levels shift, directly affecting nematode habitats. Studies suggest that frequent seating use reduces biodiversity, favoring hardy species over sensitive ones.

Additionally, organic debris (e.g., food scraps) near seating can temporarily boost bacterial-feeding nematodes, creating short-term ecological imbalances. However, prolonged artificial structures may degrade soil structure, indirectly harming predatory nematodes that regulate pest populations.

To mitigate impacts, designers could opt for permeable materials or rotate seating locations to allow soil recovery. Understanding these dynamics helps balance urban convenience with ecosystem preservation.