Part one of term paper
Natural Resources Management Predators have an everlasting effect on different kinds of ecosystems. They influence there ecosystems by controlling the abundance of lower species certain habitats. In this article, “Predators and Ecosystem Management” by (James A. Estes). He explains results of case studies that indicate important ecolog ...

Part two of term paper
... the kelp forests. The relation between the sea otters and the kelp-forests was provided because of a accident of history, the over-exploitation of sea otters in the Pacific maritime fur trade. The study compared areas where sea otters were abundant with nearby areas to area's where they're almost extinct. By doing this comparison of the sea otters coastal system it was possible to gain much insight into the sea otter ecological role in kelp-forest ecosystem. Over the years it's been possible for ...