However, as human populations continue to increase, the consequences of human activities continue to threaten our resources and have already significantly altered the global nitrogen cycle.

Greene. "Resource Configurations Over the Life Cycle of Ventures." In Frontiers of Entrepreneurship Research, 1997: Proceedings of the 17th Annual Entrepreneurship Research Conference, edited by W.

Owl populations cycle in a similar manner ... Thus both availability of resources and predation pressure affect the size of prey populations. We cannot easily determine the extent to which ...