Figure 6 . Results of Random Forest analysis showing the unique contribution of five native plant macrofossil diversity metrics (Shannon diversity, plant cover, submerged plant cover, floating plant cover and beta diversity) on E. canadensis abundance temporal variation across the three-study lake groups.
SUPLEMNTARY MATERIAL
APPENDIX 1
Table S1. Historical monitoring records of Elodea canadensis at 20 satellite lakes and the 4 basins in the central lake (ULE) in the ULE system at pre-1930; 1930-1949; 1950-1969; 1970-1986; 1988-1990, 2006-2007 and 2008-2009. Botanical records from the British Society & Ireland (BSBI) Botanical are indicated by an X; Abundance= semi-quantitative scale of 0-5. Lakes showing a decline in Elodeaabundances over time are highlighted in bold.