Before revision:  simple resource-competition models do not allow for coexistence of a large number of species . However , it was recently shown that assuming the existence of metabolic trade-offs - in allocating a limited enzyme production capacity - can lead to unlimited diversity, when nutrients are steadily supplied.
After revision:  simple resource-competition models do not allow for coexistence of a large number of species , it was recently shown that assuming the existence of metabolic trade-offs - in allocating a limited enzyme production capacity - can lead to unlimited diversity, when nutrients are steadily supplied.