the seed. This exercise will attempt to replicate experiments first done by G.F. Gause in the 1920s and early 1930s and reported in his book, The Struggle for Existence, published in 1934. He was attempting to show experimentally that the relationships described by the Pearl-Verhulst and Lotka-Volterra equations on population growth and species interaction were correct. These equations will be described later in the exercise. At present, suffice it to say that these two sets …showed first 75 words of 10733 total…

…showed last 75 words of 10733 total…K1 < K2/21 IV. Mechanisms for the coexistence of competitors 1. Resource partitioning a) specialization in resource use b) two phenomena expected if resource partitioning is pervasive i) checkerboard distributions ii) character displacement Character displacement: evolutionary changes in a species that result from selection to reduce interspecific competition by increasing resource partitioning (usually by increasing morphological differences between species). 2. Fugitive species a) tradeoffs between dispersal ability and competitive ability - r- and K-selection b) regional