Stratification in ecosystem layer systems refers to the vertical layering that occurs within an ecosystem, typically in terms of plant and animal organization. This structure creates distinct habitats that offer varying resources and conditions, influencing species interactions and community dynamics. For instance, in a forest, layers may include the canopy, understory, and forest floor, each hosting unique organisms adapted to specific environmental conditions. Stratification enhances biodiversity by providing niches for different species, promoting complex interactions that contribute to the overall health and resilience of the ecosystem.