Biotic interactions are basically just a shorthand for the effect that biological organism have on other biological organisms in a certain ecosystem (often called a community). read more
Examples of biotic factors include any animals, plants, trees, grass, bacteria, moss, or molds that you might find in an ecosystem. In general, biotic factors are the living components of an ecosystem and are sorted into three groups: producers or autotrophs, consumers or heterotrophs, and decomposers or detritivores. read more
The types of interactions in an ecosystem depend on the ecosystem. In each ecosystem, whether as large as a desert or as small as a tree, there are organisms that are decomposers, consumers and producers. Abiotic and biotic components of an ecosystem help make it function. read more
Most land plants and land ecosystems rely on mutualisms between the plants, which fix carbon from the air, and mycorrhyzal fungi, which help in extracting water and minerals from the ground. An example of mutualism is the relationship between the ocellaris clownfish that dwell among the tentacles of Ritteri sea anemones. read more