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INTERPRET DATA Examine the top and middle graphs in Figure 54-5. Are these examples of exponential or
RESULTS AND CONCLUSION: The top and middle graphs show how each species of Paramecium flourishes when grown alone. The bottom graph shows how they grow together, in competition with each other. In a mixed culture, P. aurelia outcompetes P. caudatum, resulting in competitive exclusion.
SOURCE: Adapted from G.F. Gause, The Struggle for Existence (Williams and Wilkins, Baltimore, 1934).
Figure 54-5 G.F. Gause’s classic experiment on interspecific competition
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