Respond to the following in a minimum of 175 words: 

• Do you think of yourself primarily as a conservationist, environmentalist, ecologist, preservationist, or none of these? Why? What are some examples that support your position?
• Where have you observed an ecosystem change over time? How would you describe the biodiversity–in terms of species richness and evenness–of the place and how the changes affected biodiversity? What are the positive and negative changes?