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View Resource Impact of Cowbird Brood Parasitism on an Avian Community

This data set can be used to determine the effect cowbird brood parasitism has on a songbird population. It includes notes for students as well as instructions for faculty.

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...

View Resource Energy Balance and Trophic Status in Fish

In this activity, students work with a dataset to investigate energy balance in animals that have different feeding behaviors (diurnal/nocturnal) and diets (e.g., carnivore/detritivore).

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...

View Resource 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...

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