The term biotic means living or having lived. Examples of biotic factors would include a frog, a leaf, a dead tree, or a piece of wood. The term abiotic means non-living, or never having lived. Examples of abiotic factors would include air, water, soil, sunlight, temperature, and climate.
Abiotic factors are essentially non-living components that effect the living organisms of the community.
When an ecosystem is barren and unoccupied, new organisms colonizing the environment rely on favorable environmental conditions in the area to allow them to successfully live and reproduce.
These environmental factors are abiotic factors. When a variety of species are present in such an ecosystem, the consequent actions of these species can affect the lives of fellow species in the area, these factors are deemed biotic factors.