AMHERST, Mass. - In a new analysis of the effectiveness of marine protected areas worldwide, University of Massachusetts Amherst marine ecologist Brian Cheng and colleagues report that reserves not only replenish target fish populations, they also restore ecological functioning. However, not all reserves performed equally well.
Ecological functioning is a measure of the activities that maintain life, Cheng points out. In this case, it involves rates of predation and herbivory, or when animals eat other animals or plants, he adds. Without these activities, these ocean habitats would be radically different, providing fewer benefits to society.