Answer:
Stability Theory
Step-by-step explanation:
Stability can be defined at the ecosystem level — for example, a rancher might be interested in the ability of a grassland ecosystem to maintain primary production for cattle feed across several years that may vary in their average temperature and precipitation. Biologically diverse communities are also more likely to contain species that withhold resilience to that ecosystem because as a community accumulates species, there is a higher chance of any one of them having traits that enable them to adapt to a changing environment. Such species could buffer the system against the loss of other species. In this situation, species identity — and particular species traits — are the driving force stabilizing the system rather than species richness.