https://doi.org/10.1351/goldbook.14869
Interaction between two or more species, giving fitness benefit to all the involved species, e.g., increased carrying capacity.
Notes:
- Similar interactions within one species are called cooperation.
- Symbiosis is the form of mutualism leading to the closest spatial or physical association. The process may be obligate, meaning the involved species cannot survive alone. Examples include cleaner fish, pollination and seed dispersal, gut flora, and nitrogen fixation by fungi.