THE ECOLOGICAL QUESTION:
What are the short- and long-term effects of a whole-watershed deforestation experiment on streamflow?
small watershed concept; watershed response to major disturbance (i.e., deforestation); forest hydrology; importance of long-term research in ecology; experimental design.
WHAT STUDENTS DO:
Students will use MS Excel file or hard copy of data to graph short- and long-term streamflow response to a whole-watershed manipulation. Students compare results to baseline data, draw conclusions about hypotheses, and consider implications of long-term research.
Using a computer spreadsheet to make simple graphs; interpreting long-term data; critical thinking; hypothesis development and evaluation.
Graphs from spreadsheet data; written interpretation of data; written analysis of hypothesis results; poster presentation of results; written discussion of short- and long-term ecological research as shown in this experiment.
Hubbard Brook Experimental Forest LTER archive (www.hubbardbrook.org)
Adam Welman 1, Cynthia Berger 2, and Marianne Krasny 3.