Hello, How can I access the data that is used to draw the arrows on a biplot in package vegan? 
For example, mod[8] in the code below gets me a bunch of data about the ordination axes, and perhaps the data for the biplot arrows is in there, but I don't know which is used for the arrows. 

Thanks, Scott


require(vegan)
data(dune) 
mod <- rda(dune, scale = TRUE) 
biplot(mod, scaling = 3)
mod[8]



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