Enrichment can stabilize population dynamics: autotoxins and density dependence. From: Ecology | Date: October 1, 1998| Author: | COPYRIGHT 1998 Ecological Society of America. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan.  All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information) Copyright information

Simple theories of predator-prey population dynamics predict that enrichment of the prey will reduce population stability and cause complex dynamics such as population cycles. This "paradox of enrichment" has rarely been tested, although it has been observed in laboratory populations of mites and protozoans. In this paper, replicated laboratory microcosms containing planktonic rotifer predators and phytoplankton prey were used to explore the effects of enrichment on predator population dynamics. Prey enrichment was accomplished by increasing the input concentration of prey into predator ...

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