Figure 4. Smooth fitted functions plots between E.
canadensis abundance variation and three abiotic metrics (water
clarity, longitude and latitude) and five native macrophyte biodiversity
metrics (Shannon diversity, plant cover, submerged plant cover, floating
plant cover and beta diversity) obtained in the Boosted Regression Trees
variance partitioning scheme analyses at each lake group. Water clarity
values for each sampling point is defined as: lake secchi depth at the
deepest point of each lake/water depth at the PVI sampling point. Plant
cover, submerged plant cover, and floating plant cover values are
expressed as %.