WETMAAP Technique 3
Lake Pontchartrain - Martello Castle Element 1

Technique 3: Recognition of Wetland Change
Element 1: Evaluate Habitat Change

Materials:

        1956 Colored NWI map (Skill 3, Element 3)

        1978 and 1988 Colored overlays taped together (Skill 3, Element 1)

        Drafting tape

Exercise:

1. Use the 1956 Colored NWI map and the 1978 and 1988 colored overlays taped together.

2. List at least two differences observed:

Note: Place a piece of white paper between the 1956 NWI map and the 1978 colored overlay to observe the difference between the 1978 and 1988 colored habitats.

3. Visually examine the colored habitat maps to determine if the following habitats increased or decreased between each time period. Write increase or decrease in the boxes.