Which type of community has a clear distinction in boundaries?

A closed community is characterized by distinct and well-defined boundaries that separate it from surrounding environments. This type of community often exhibits a high level of stability and minimal interaction or exchange with outside ecosystems. The species composition is typically stable over time, reflecting the particular conditions and resources available within those boundaries.

In contrast, open communities are generally more dynamic and do not have clear ecological boundaries; they often experience significant interchange with other communities. Transitional communities occur at the edges of two distinct ecosystems and exhibit characteristics of both, while dynamic communities emphasize change over time and can be influenced by various factors such as climate, disturbance, and species interactions.

Thus, the identification of closed communities as having clear distinctions in boundaries underscores their ecological integrity and isolation from external influences, making them distinctive in terms of species composition and stability compared to other community types.