What is the inherent characteristic of a system where functional redundancy is low, meaning only a few species handle a key function?

Answer

Highly susceptible to collapse

When functional redundancy is low, the system becomes inherently brittle because the failure or impact on those few species responsible for a key process can halt the entire operation.

What is the inherent characteristic of a system where functional redundancy is low, meaning only a few species handle a key function?
EcologyEcosystemResiliencebiodiversity