ecology rss icon

Wetland Productivity

Grass in a swamp
Wetlands produce about 15,000 pounds of plant material a year
3:21PM
August 12, 2011

Wetlands produce four grams of carbon per square meter per day, or 15,000 pounds of plant material a year – twice that of a forest.

Wetland Sediments

Sediment
Sediments in swamps
3:15PM
August 12, 2011

Soil particles flow into a wetland, can be stirred up, or can sink to the bottom

Plant Communities in Wetlands

Man in wetland
Plant communities in wetlands
3:04PM
August 12, 2011

Plants with roots in the water can grow up through the water, or can grow as algae, which can break off and float to the surface

Phosphorus in Wetlands

Wetland
Phosphorus levels need to be monitored in wetlands
2:38PM
August 12, 2011

Phosphorus is essential in wetlands, but too much is dangerous

The Functions of Wetlands

Plants in a wetland
Plants thrive in wetlands
2:21PM
August 12, 2011

Wetlands can do and be many things, including: reduce flooding, filter pollutants, be incredibly productive, and act as a nature preserve

Food Chain and Food Web of Wetlands

Duck in wetland
Animals in wetlands
11:46AM
August 12, 2011

Energy is transferred from the sun, plants, and animals. The food web in a wetland offers many choices for animals.

Effects of Flooding in a Wetland

water
Flooding
11:39AM
August 12, 2011

Bottomland hardwood forests, or swamps, receive most of its water from river floods, which effects what types of plants can grow in them.

Stories in Ice

Stories in Ice still frame
Stories in Ice
2:32PM
August 2, 2011

Through examining ice cores, scientists can observe and record past climate conditions without having lived in those conditions. Download the teacher’s guide (PDF, 90K)

Predictions from the Ice

Predictions from the Ice still frame
Predictions from the Ice
2:47PM
August 1, 2011

By examining past trends in carbon dioxide and methane levels as well as temperatures, scientists can predict future trends through ice core samples. Download the teacher’s guide (PDF, 124K)

Biochemistry of Wetlands

Biochemistry of Swamps
Biochemistry of Swamps
2:20PM
July 28, 2011

The amount of nitrogen in rivers has increased over the years, but wetlands can filter out some of it