Thursday, September 30, 2010

Biotic Limiting Factors

This is an image of a large tree near the recreation center in my community. This tree is a limiting factor because it causes all the patches of grass underneath it to die. In addition, it takes up all of the roots from other plants like smaller trees and flowers. Third, it provides shelter for small animals like rabbits and possums from bigger animals like hawks. This has an effect in our world today because trees decompose oxygen. For example, the rain forest in South America provides nearly 35% of the Earth's oxygen. These several reasons are why this tree and many other trees in my township are vital to our everyday lives.