If there was a steep drop in community services as soon as species richness was decreased, this would support which species-richness community service model?

Question

Quizplus · Accepted Answer

The Keystone model posits that certain species have a disproportionately large effect on their environment relative to their abundance. A steep drop in community services upon a decrease in species richness suggests that some species are critical for those services, aligning with the Keystone model's emphasis on the pivotal roles of certain species.

If There Was a Steep Drop in Community Services as Soon