What is an ecotone in relation to forest ecosystems?

An ecotone refers to a transition area between two or more different ecological communities, such as the border where a forest meets a grassland or wetland. This unique area often has a mix of species from both ecosystems and can possess its own distinctive set of environmental conditions, thereby supporting a diverse array of organisms. Ecotones are important in forest ecosystems because they enhance biodiversity, provide unique habitats, and serve as zones for interactions between species from adjacent communities, which can lead to increased ecological resilience.

In contrast, a fully developed forest represents a mature ecosystem that has reached a stable state, but it does not embody the transitional nature of an ecotone. Endangered species habitats refer specifically to areas where species at risk require protection, which does not accurately capture the broader definition of an ecotone. Lastly, while methods for controlling invasive species may be important in managing ecosystems, they are not directly related to the concept of an ecotone, as this term focuses instead on ecological transitions rather than management techniques.