VOLUME 6: Table of Contents
TEACHING ISSUES AND EXPERIMENTS IN ECOLOGY
TEACHING
ALL VOLUMES
SUBMIT WORK
SEARCH
Figure Set 3: Causes of intense elk browsing on cottonwoods and willows during the 20th century.
Purpose: To practice interpreting graphical data; to use the data to address the question of why browsing by elk in Yellowstone was so intense during the 20th century.
Teaching Approach: “Pairs share”
Cognitive Skills: (see
Bloom's Taxonomy) — knowledge, comprehension, interpretation
Student Assessment: minute paper or essay quiz
FIGURE SET
Figure 3. Twentieth century time series of (a) wolf populations and (b) elk population estimates and trend line for the Upper Gallatin Basin in the Yellowstone area. Shaded portions of a graph reflect uncertainty; elk census data are represented by closed diamonds. From Ripple and Beschta (2004a).
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