What is the most uniquely biodiverse place in Canada?

Well this statement certainly need to be qualified – in this post I will explore coupling species distributions models with @LegeDeC13 approach of measuring site-level contribution to β-diversity. In case you are curious, the entire code (100% Julia) is available on GitLab. Specifically, I am interested in finding out where the waterfowl communities are the most distinctive.
The LCBD (Local contribution to β-diversity) is a measure which belongs to a family of approaches, relying on estimating β-diversity through the variance of a community data matrix $\textbf{Y}$, and requires a reduced number of transformations.