Figure 3. a ) Boosted Regression Trees (BRT) variance
partitioning scheme on the three-study lake groups showing the pure and
shared proportions of explained and unexplained variance in Elodea
canadensis abundance patterns by abiotic metrics and macrophyte
biodiversity metrics; b) Diversity fraction of the BRT variance
partitioning analysis showing the unique contribution of five native
macrophyte diversity metrics (Shannon diversity, plant cover, submerged
plant cover, floating plant cover and beta diversity) on E.
canadensis abundance variation across the three-study lake groups; c)
Abiotic fraction of the BRT variance partitioning analysis showing the
unique contribution of three abiotic metrics (water clarity, longitude
and latitude) on E. canadensis abundance variation across the
three-study lake groups. Only percentages values of explained variation
>10% are presented in the plots.