Outdoor seating, a common feature in urban and suburban areas, may have unintended consequences on local ecosystems—particularly for microscopic organisms like water bears (tardigrades). These resilient creatures thrive in moist environments, such as moss, lichen, and leaf litter. The introduction of benches, tables, and paved surfaces can disrupt their microhabitats by altering moisture levels, reducing organic matter, and increasing exposure to sunlight.

Studies suggest that water bears are highly sensitive to habitat changes. When outdoor seating replaces natural ground cover, it can fragment their populations, making it harder for them to find food and reproduce. Additionally, chemical runoff from treated wood or metal seating may further endanger these tiny organisms.

However, not all impacts are negative. Some artificial structures, like shaded seating with nearby vegetation, can create new microhabitats if designed thoughtfully. To protect water bears, urban planners should consider eco-friendly materials and preserve green spaces alongside seating areas. Understanding these interactions highlights the importance of balancing human convenience with biodiversity conservation.