Ecology 6th Edition by Charles Krebs

تمرين 2

The trophic cascade in Zion National Park illustrated in Figure 21.15 rests on a comparison of two geographically separate areas of the park because of human use patterns. Discuss whether this comparison of two separate areas at the same time can be used to validate a system of multiple stable states according to the criteria given on page 445 from council and Sousa ( 1983).
Reference Figure: 21.15