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(4 classifications) (41 resources)

Ecological Core Concepts -- Ecosystems

Discipline Specific Core Concepts Classifications
Biogeochemical cycling (16)
Decomposition (7)
Food webs and trophic cascades (10)
Production and respiration (12)
Resources
View Resource Issues in Ecology, Issue 05: Biotic Invasions

This report is an introduction to exotic species invasions. An exotic species becomes invasive, when it proliferates unchecked across the region in which it was introduced. The transformation from immigrant to invader and how humans act as dispersal agents is explained. Attributes of invaders, effects on native community, global ecological and economic consequences, prevention, and long term...

 

Publisher: EcoEd Digital Library
View Resource Issues in Ecology, Issue 07: Nutrient Pollution of Coastal Rivers, Bays, and Seas

This report addresses coastal ecosystem degradation as a consequence of human driven increases in nutrients such as Nitrogen and Phosphorus. Effects on ecological communities such as algal blooms, loss of seagrass beds, and coral leaching are described. Excess nitrogen is emphasized as being the limiting nutrient in coastal systems. Political and scientific consideration to support the control...

 

Publisher: EcoEd Digital Library
View Resource Issues in Ecology, Issue 12: Impacts of Atmospheric Pollution on Aquatic Ecosystems

This report discusses the three primary categories of atmospheric pollutants of aquatic ecosystems and how their ecological effects impact humans, fish and wildlife. Pollutants of concern such as organic compounds, synthetic fragrances, fluorinated surfactants, flame retardants, mercury, and nutrients are reviewed. The emission, deposition, and fate of atmospheric pollutants are discussed; in...

 

Publisher: EcoEd Digital Library
View Resource Human Alteration of the Global Nitrogen Cycle

In this Issue, students explore large-scale anthropogenic changes to the nitrogen cycle by examining studies that document anthropogenic inputs of nitrogen globally, the export of nitrogen from rivers to the ocean, and the ecology of Pfiesteria in the Chesapeake Bay.

 

Publisher: EcoEd Digital Library
View Resource Hubbard Brook Streamflow Response to Deforestation

This teaching activity explores what the short- and long-term effects of a whole-watershed deforestation experiment are on streamflow. Students can use an MS Excel file or hard copy of data to graph short- and long-term streamflow response to a whole-watershed manipulation. Students can then compare results to baseline data, draw conclusions about hypotheses, and consider implications of...

 

Publisher: EcoEd Digital Library
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