Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated September 2025
Definition
Species interactions refer to the ways in which species interact with each other within an ecosystem. These can include predation, competition, symbiosis (mutualism, commensalism, parasitism), and more.
A long-term interaction between two different biological organisms that may be mutually beneficial (mutualistic), harmful to one party (parasitic), or neutral for one party while benefiting the other (commensalistic).