Predators And Ecosystem Management :: essays research papers fc

Predators and Eco brass ManagementNatural Resources ManagementPredators have an everlasting effect on different kinds of ecosystems.They find there ecosystems by controlling the abundance of lower speciescertain habitats. In this article, Predators and Ecosystem Management by(James A. Estes). He explains results of case studies that indicate importantecological roles for predators in a huge coastal ecosystem. The chief(prenominal) challengein this article is to determine if there are recurrent patterns else where innature and to also perceive when and where they occur.The author gives his perspective on predators and the coastal ecosystemsby giving us a living example, the sea otter and the kelp forests. The relationbetween the sea otters and the kelp-forests was provided because of a possibilityof history, the over-exploitation of sea otters in the Pacific maritime furtrade. The study compared areas where sea otters were abundant with nearbyareas to areas where theyre almost ex tinct. By doing this comparison of thesea otters coastal system it was possible to gain much insight into the seaotter ecological role in kelp-forest ecosystem. Over the years its beenpossible for us to observe the kelp-forest ecosystem over-time, thanks to the enormous growth of the sea otters population we observed the change from otter-free to otter-dominated.This article relates to many aspects of our textbook. On page 89 inchapter 5 the text explains what an ecosystem is, defined by the book, its acommunity of species interacting with one another where there is a non-livingenvironment. In this case the otter and kelp-forests ecosystems a coastalecosystem. As mentioned in the book, the food drawing string is involved in the sequenceof events with the organism that are the source of the food. In a survey ofcoastal habitats in many areas of the North Pacific sea have revealed thatkelp forests usually are extensively deforested where sea otters are absentwhereas this condition is rare where occur ( Estes and Duggins 1995).All ecosystem management has recently emerged as the main way of