sustained by he basins rich natural resources. With their involvement an support, federal, state, private scientists, and land managers hope to restore ecological health to the basin so future generations will continue to be captured and enraptured by its natural beauty. Section 3: Basic Abiotic FactorsA body of water, such as the Columbia River will inevitably be disturbed by various factors, which will affect the distribution of organisms in the water. Wind is a prime factor responsible for disturbing water. For example the strongest wind of the year was a 59mph wind from the south. I am sure that this strong wind had a lot of effect on the distribution of organisms in the water. Though wind may change the placement and habitats of organisms, there is a good side to wind. Wind can provide an essential cove and shade needed for survival of some species. Other than wind causing movement, a river will have water movement as water succumbs to gravity and moves downstream. These are relatively constant factors that affect water movement though, for example, human intervention can also cause water movement. The surface tension of the water will also affect the organisms that occupy the area, depending on the cohesion of water at the surface; it can affect the amount of oxygen that reaches organisms living below the water surface. The oxygen concentration of the water and the surrounding air will have great bearing on which organisms can survive in a particular environment. Oxygen is required for respiration in animals, and the concentration of oxygen in an area is determined by many factors, including temperature and abundance of organisms for example. Many chemical reactions and cellular processes rely on the availability of oxygen; therefore the concentration of oxygen in the ecosystem will inevitably alter the ecosystem itself. The same applies to carbon dioxide concentration. CO2 is required for photosynthesis, and can also affect t...
