1. Freshwater Wetlands (Marshes and Swamps)
By: Allison Vassallo

2. Productivity
Freshwater wetlands are highly productive. They receive a high annual precipitation and are very nutrient-rich.

3. Major Life Forms
Freshwater wetlands support micro-invertebrates, crustaceans, fish, amphibians, water birds, mammals, and reptiles.

4. Abiotic Limiting Factors
The limiting factors are dissolved oxygen, temperature, sunlight, salinity, pollutants, and fertilizers.

5. Special Features
Wetlands accept water during storms, and when water levels are already high. They also release vegetative matter into rivers, which helps feed various organisms.

6. Plant Adaptation
Many wetland plants have special air or pore spaces in their roots to allow more oxygen in, which is also known as aerenchyma. Wetland trees have shallow root systems, roots that grow above the ground, and swollen trunks. These adaptations allow the trees to get all of their necessary nutrients and to survive.

7. Animal Adaptations
Waterproof coats help keep mammals warm. Webbed feet are another adaptation that help animals navigate the water.

8. Sources
Works Cited
Freshwater Wetland Productivity. content/uploads/2017/02/Freshwater-Productivity.pdf.
NSW Office of Environment and Heritage. mationName=Freshwater+wetlands.
Pantanal. Amusing Planet, worlds-largest-freshwater.html.
Polluted Marsh. ny.curbed.com/2016/11/17/ /bronx-nyc- westchester-creek-photo-essay.
Webbed Frog Foot.