Fig 1.
Map of all sampling locations.
Basemap data from the Ontario Government, via ESRI Canada.
Fig 2.
PCA plots utilizing LULC data (a) and physico-chemical data (b).
Table 1.
Significant PCA results from both the initial LULC PCA and follow-up physico-chemical PCA (with LULC VF1 as a parameter) on selected site parameters.
Fig 3.
TDN, TDP (a) and DOC (b) plotted against LULC VF1.
Fig 4.
δ 15N values of nitrate and animal tissues plotted against percent riparian monoculture (A) and TDN (B).
Table 2.
Landscape and environmental data from all sites of study.
Table 3.
Averaged animal tissue and periphyton stable isotope data from all sites of study.
Fig 5.
δ15N of animal tissues plotted against δ15N of nitrate (a), δ15N of darters plotted against δ15N of trout and bass (b), δ15N of fish tissues plotted against δ15N of mussles (c), and δ13C of darters plotted against δ13C of trout and bass (d).
Table 4.
The presence or absence of prey items in the stomachs of selected fish species (4 specimens collected at each site).
Fig 6.
A comparison of observed and modelled animal tissue δ15N values based on the equation of [17], using an assumed δ15N of 3.4‰ and using either the δ15N of nitrate (A) or mussel tissues (B) as baseline values.