[R-sig-eco] How to differentiate niche dimensions?

[Olmo]

 Hi, I think you can use the niche.overlap in the spaa package to
 calculate niche overlapping, I used it, but it may be another better
 ways.

 Hope this helps.

El Fri, 30 Mar 2012 11:21:53 -0300
Ricardo Solar <rrsolar at gmail.com> escribió:
> Hi folks;
> 
> I have a dataset on stable isotopes involving differences in
> consumption of Carbon and Nitrogen between two species (nest builder
> and inquiline). I used "siar" package and I had two ellipses with
> Carbon in the x axes and Nitrogen in y axes.
> 
> OK, the point is that I can see (visually) a clear separation between
> the two species when I draw the ellipses. However, I'm stuck in how
> can I (analytically) calculate niche differentiation, or even better,
> overlapping area of ellipses to demonstrate that the two species are
> separated.
> 
> If anyone can help me, thanks in advance.
> 




-- 
Olmo Hernández Cuba
Instituto Universitario de Investigación CIBIO
Universidad de Alicante
Campus Universitario San Vicente del Raspeig
03690 Alicante
España