WETMAAP Technique 3
Northshore - Element 1
Technique 3: Recognition of Wetland Change
Element 1: Evaluate Habitat Change
Materials:
1956 Colored Habitat map (Skill 3, Element 3)
1978, 1988, and 1995 Colored overlays taped together (Skill 1, Element 3)
Drafting tape
Exercise:
1. Use the 1956 Colored Habitat map and the 1978, 1988, and 1995 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.
1956 and 1978 | 1. 2. |
1978 and 1988 | 1. 2. |
1988 and 1995 | 1. 2. |
3. Visually examine the colored habitat maps to determine if the following habitats increased or decreased between each time period. Write increase, decrease, or stayed the same in the boxes.
Time periods |
Salt Open Water | Fresh Open water | Flats & Beaches | Salt Marsh |
Fresh Marsh |
Forested Wetlands | Wetland Scrub-shrub | Upland Forested | Upland Scrub-shrub | Urban | Ag/ Range |
1956-1978 | |||||||||||
1978-1988 | |||||||||||
1988-1995 |