Outdoor seating, such as benches, tables, and chairs, can significantly influence the growth of lichen on nearby surfaces. Lichens, symbiotic organisms composed of fungi and algae, thrive in specific environmental conditions. The presence of outdoor seating alters microclimates by providing shade, trapping moisture, and reducing airflow—factors that directly impact lichen colonization.

Shaded areas beneath or around seating often retain higher humidity, creating ideal conditions for lichen to flourish. Additionally, seating materials like wood or stone may absorb moisture, further promoting lichen growth. Conversely, frequent human contact or cleaning can inhibit lichen development by disrupting their delicate structures.

Urban environments with outdoor seating may see varied lichen distribution based on seating placement, material, and maintenance. Understanding these dynamics helps in managing urban green spaces and preserving biodiversity. By studying lichen patterns near seating areas, researchers gain insights into microhabitat changes caused by human infrastructure.