WETMAAP Technique 4
Trinity River Element 1 

Technique 4:  Analysis
Element 1:  Cause and Effect of Habitat Change 

Materials:

            1930    Trinity River Aerial Photograph
            1956    Trinity River Aerial Photograph
            1995    Trinity River Aerial Photograph
            2004    Trinity River Aerial Photograph
            Colored map and overlays generated in Skill 3, Element 1 

Exercise: 

            1. Use colored maps and overlays generated in Skill 3, Element 1. 

            2. Use tables generated in Technique 3, Element 1. 

            3. Using the table generated in Technique 3, Element 1, and overlays generated in Skill 3, Element 1, list the possible causes for differences observed in habitats between dates.

1930 and 1956  

1. _________________________________ 

 

2. _________________________________

 
1956 and 1995  

1. _________________________________ 

 

2. _________________________________

 
1995 and 2004  

1. _________________________________ 

 

2. _________________________________