Changing line thickness in ordihull vegan r package

Question

How can I change the thickness of the boundary lines used in ordihull?

library(vegan)
data(dune)
data(dune.env)
mod <- cca(dune ~ Management, dune.env)
attach(dune.env)
plot(mod, type="n", scaling = 3)
pl <- ordihull(mod, Management, scaling = 3, label = TRUE)

Answer 1

You could use the lwd argument, see ?par for details.

pl <- ordihull(mod, Management, scaling = 3, label = TRUE, lwd=10)