Answer:
Plants, algae and bacteria. They are called autotrophs
Explanation:
Each species of life are able to adapt under certain conditions. When these specific conditions change, they are outcompeted by those that can survive this conditions.
The changes in the plant species, also affect the type of fungal presence available. This is because many fungi are associated with a particular plant.
I believe it is temperature or rainfall. All of the factors are improtant but temperature comes first, cuz the temperature can also determine the air, and soil doesn't make a difference. Longitude doesn't have to do with an ecosystem.