Pleistocene Extinctions: The Death of an Ecosystem
	Elin Whitney-Smith, Ph.D.

		We tend to think extinctions only affect the animals which are gone. We forget that animals, vegetation and climate are linked. We also tend to forget that people act on their perceptions of their environment. If their environment changes slowly, they slowly adjust, and their perception of their environment does not change. But if their environment changes quickly, their perception of their environment as benign, also changes. The materials at this site talk about the interconnectedness of ecosystems and the impact of extinctions on human perception.

		The End of Eden: Brief description of the extinction model results		The Case of the Aboricidal Megaherbivores: Skylark Holmes and Dr. Janet Watson set up the problem and investigate.		Model Get a copy of the software and run the extinction model yourself.		Read About the Implications: If scarcity is a product of extinctions it motivates the invention of war.