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Figure 2 | Journal of Animal Science and Technology

Figure 2

From: Fatty acid analysis as a tool to infer the diet in Illinois river otters (Lontra canadensis)

Figure 2

Principal components analysis of fatty acid in four major taxonomic groups that are potential prey species for Illinois river otters. Each data point represents the principal components of 60 FA from an individual animal, jointly accounting for 27.8% of the variance in FA. There is considerable variation between individuals but taxonomic groups (identified by color) form identifiable clusters on the plot so that mollusc, fish, and frog species can be distinguished from each other. Crayfish occupy the space between frogs and fishes.

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