| upca {simecol} | R Documentation |
simecol example: resource-predator-prey model, which is able to exhibit chaotic behaviour.
data(upca)
S4 object according to the odeModel specification.
The object contains the following slots:
mainuvwequationsparmstimesinitu, v and w.solverTo see all details, please have a look into the implementation and the original publications.
Blasius, B., Huppert, A., and Stone, L. (1999) Complex dynamics and phase synchronization in spatially extended ecological systems. Nature, 399 354–359.
Blasius, B. and Stone, L. (2000) Chaos and phase synchronization in ecological systems. International Journal of Bifurcation and Chaos, 10 2361–2380.
data(upca)
plot(sim(upca))
# omit stabilizing parameter wstar
parms(upca) <- list(wstar=0)
plot(sim(upca))
# change functional response from
# Holling II (default) to Lotka-Volterra
equations(upca)$f <- function(x, y, k) x * y
plot(sim(upca))