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- Ecological Core Concepts -- Human impacts -- Alteration of biogeochemical cycles [X]
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Pathways to Scientific Teaching, Chapter 2a of 7: Climate change: confronting student ideas
Students bring prior knowledge about science to our courses, yet sometimes their information is inaccurate.The Beedlow et al. article [attached] provides a foundation for addressing several incomplete, naïve, or erroneous ideas that have been identified in students’ thinking about the carbon cycle (Carlsson 2002; Ebert-May et al. 2003), what scientists know about the relationship between plant ...
Publisher: EcoEd Digital Library
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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 pine and hardwood forest responded to long-term nitrogen fertilization?" Students address the question using data on several ecosystem characteristics and processes: net primary productivity, tree...
Publisher: EcoEd Digital Library
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Issues in Ecology, Issue 15: Excess Nitrogen in the U.S. Environment: Trends, Risks, and Solutions
It is not surprising that humans have profoundly altered the global nitrogen (N) cycle in an effort to feed 7 billion people, because nitrogen is an essential plant and animal nutrient. Food and energy production from agriculture, combined with industrial and energy sources, have more than doubled the amount of reactive nitrogen circulating annually on land. Humanity has disrupted the nitrogen...
Publisher: EcoEd Digital Library
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Issues in Ecology, Issue 15: Press Release
This January 2012 press release introduces and describes the significance of issue #15 of ESA's Issues in Ecology series, "Excess Nitrogen in the U.S. Environment: Trends, Risks, and Solutions."
Publisher: EcoEd Digital Library
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Climate, Weather and Anthropogenic Activity
This module presents a science-based story to demonstrate how climate determines the global, long-term, large-scale distribution of living organisms; whereas, weather determines the local, short-term, small-scale ecology of living organisms. Life thrives within specific, often narrow ranges of temperature and precipitation – two main players in climate and weather. Using a systems-based approach,...
Publisher: EcoEd Digital Library
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