1. Wetlands

2. Wetlands There are 2 types of environments on our planet:
Terrestrial and aquatic
Wetlands are the middle ground between the two.
When flooded  more aquatic
During dry periods  more terrestrial

3. Examples of wetlands

4. Marsh A marsh is an ecosystem that is no more than 2 m deep.
Submerged plants: grow in the deepest zones. Most common is water milfoil which many aquatic species use its thin leaves for shelter and food.
Floating plants: Float on surface of water. Most common is duckweed. Provides shelter for most insects and as food for ducks.
Emergent plants: Take root in the mud and edge of the marsh. Cattails are examples of emergent plants and many species use them for shelter and food.

5. Function of marshes
Marshes are often referred to as “Earth’s kidneys” because they work as filters.
A marsh is able to filter water because water circulates through it very slowly.
In marshes plants and micro-organisms capture pollutants. Some pollutants are deposited on the bottom of the marsh.

6. Food web
A food web is a group of food chains, often interrelated, that makes up an ecosystem.

7. Adapting to the environment
Adaptations have helped species reproduce and survive.
Some adaptations are physical while some relate to the way the animal moves, feeds, reproduces or responds to climate

8. In class work
P.86
Homework:
P.83
“This way to the finish line”