Ecology 7th Edition by Manuel Molles

Exercise 16

Draw the four possible ways in which Lotka's (1932a) isoclines of zero population growth (see fig. 13.14 ) can be oriented with respect to each other. Label the axes and the points where the isoclines intersect the horizontal and vertical axes. Explain how each situation represented by the graphs leads to either competitive exclusion of one species or the other or stable or unstable coexistence.