Benchmark 5D
The Living Environment: Interdependence of Life
Grades 9-12, page 117

Like many complex systems, ecosystems tend to have cyclic fluctuations around a state of rough equilibrium. In the long run, however, ecosystems always change when climate changes or when one or more new species appear as a result of migration or local evolution.

NSES Content Standard C 
Life Science: The interdependence of organisms
Grades 9-12, page 186
Organisms both cooperate and compete in ecosystems. The interrelationships and interdependencies of these organisms may generate ecosystems that are stable for hundreds or thousands of years.

No closely related standards have been identified.