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Ecological Core Concept is Ecosystems -- Biogeochemical cycling

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		Experimental Aquatic Ecology in Stormwater Detention Ponds The exercises described in the article focus on the water quality management of small aquatic ecosystems, namely, stormwater detention ponds. One exercise focuses on management of sedimentation and...		More Info

		Forest Ecosystem Responses to Chronic Nitrogen Additions In this activity, students work with data collected during 15 years as part of a long-term research project at Harvard Forest. Students analyze the data to address the question, "How have stands of...		More Info

		How Much Water Do We Use? This short film presents the one of the basic concepts of a hydrologic cycle, a water budget. How much water is there? Where it is and how does it move. For example, how does land use effect the...		More Info

		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...		More Info

		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...		More Info

		Issues in Ecology, Issue 01: Human Alteration of the Global Nitrogen Cycle: Causes and Consequences This report presents an overview of how humans have altered the global nitrogen cycle. An introduction to the nitrogen cycle is provided; as well as human induced nitrogen fixation and its impact on...		More Info

		Issues in Ecology, Issue 03: Non Point Pollution of Surface Waters This report addresses pollution of aquatic ecosystems that originate from multiple unidentified sources or non point sources. Non point sources of phosphorus and nitrogen are of concern as they...		More Info

		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,...		More Info

		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...		More Info

		Issues in Ecology, Issue 13: Active Teaching on Carbon Dynamics in Ecosystems All ecology texts include figures showing carbon cycles of various types (terrestrial, marine, global, etc). However, education research shows that introductory level students (both college and high...		More Info

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