What does green mean in the niche overlap plot?

[Ariadna Tripaldi]

Hi! I'm an undergrad student, and for a class project I'm attempting to make ENMs of a couple of species. When creating the niche overlap plot for two species, I get the blue and red polygons / lines for the environmental space for each species, and the purple polygon where they overlap, but I also get a green area where they don't overlap. So far i haven't been able to find any explanation for what this green area means, and was wondering if anyone here knew what it meant.

Thanks!

Ariadna

[Bethany Johnson]

Hi Ariadna,

I have a rundown of what the colors mean that I pulled from the 'ecospat' Helper file. Wallace uses the ecospat.plot.niche.dyn() function to plot the niche densities to visualize overlap. If you want more info on what these mean, check out the ecospat function documents. 

light green: the abandonment niche.
blue: the unfilling niche.
red: the expansion niche.
purple: the stability niche.
pink: the pioneering niche.
grey: the environments outside of both niches.
blue line: to delimit the native extent (i.e., sp1)
red line: to delimit the invaded extent (i.e., sp2)

The color palette used in Wallace does not match the default palette used by ecospat to account for red/green color blindness, however some new arguments were added to the function recently, which is why they are not explained or defined in the Wallace user guidance. I've already flagged this is an issue to be fixed.

Bethany