Competitive Interaction

p' = 0.50 (1 - 0.01 p - 0.005 q)p

q' = 0.50 (1 - 0.005 p - 0.01 q)q

Both axes run from zero to 200 with grid line spacing 50.

Aggressive Interaction

p' = 0.50 (1 - 0.005 p - 0.01 q)p

q' = 0.50 (1 - 0.01 p - 0.005 q)q

Both axes run from zero to 300 with grid line spacing 50.

Weak-Strong Interaction

p' = 0.50 (1 - 0.01 p - 0.005 q)p

q' = 0.50 (1 - 0.001 p - 0.002 q)q

Both axes run from zero to 1,000 with grid line spacing 100.

Cooperative Interaction

p' = 0.50 (1 - 0.005 p + 0.002 q)p

q' = 0.50 (1 + 0.002 p - 0.005 q)q

Both axes run from zero to 500 with grid line spacing 100.


Copyright c 1997 by Frank Wattenberg, Department of Mathematics, Montana State University, Bozeman, MT 59717