Figure 2
MAP dynamics with the villus model. Simulations with the villus model (Equation 2), with parameter values d = 0.04, M u 0 = 10, and b = 0.04. Other parameters: (A) R MAP  = 0.8, R MF  = 0.2; (B) R MAP  = 0.8, R MF  = 2; (C) R MAP  = 0.8, R MF  = 0.2; (D) R MAP  = 0.8, R MF  = 0.2. Initial conditions: (M u , M i ) = (5, 5) in (A) and (B, black curve); (M u , M i ) = (9, 1) in (B, grey curve), (C), (D).