Yellow Star Thistle Essay

3541 Words15 Pages
Mauro Galus Nat. Resources of Econ. Melstrom, 3/9/2012 The Yellow Star Thistle Our planet is made up of seven continents and seven oceans holding hundreds of thousands of environments and ecosystems, each with unique variations, compositions, and distinctions, and each carefully balanced in the functions of its different members. In order to remain healthy and profitable, however, change must happen slowly in an ecosystem, so that all members of the ecological community can adapt and survive. Radical change results in dangerous instability and threatens the livability of the system for the animals, plants, and even humans who depend upon it. As systems are vastly different and extremely delicate, species that are successful, profitable and enhance the livability in one area are sometimes entirely inapplicable and in fact dangerous in another. It is for this reason that we find ourselves confronted, in recent history, with a relatively new problem: nonnative species invasion. As human populations have begun to engage in widespread travel, exchanges, and modification attempts worldwide, they have also, knowingly and unknowingly, introduced, transported, and intermingled species between ecosystems in a manner that is neither gradual nor delicate. Once introduced, foreign species often negatively affect their newfound homes, taking over with unexpected force and threatening the native organisms. Invasive species are not a distant threat that will make their effects felt twenty or thirty years from now, they compose a current problem having major impacts on life and industry everywhere, and the magnitude of this problem continues to grow. Invasive plant life is a particularly threatening consequence of this problem, most importantly because it is so easily overlooked. One such invader among many, Yellow Star Thistle, is of major concern in the Northwest. What

More about Yellow Star Thistle Essay

Open Document