Nitrogen isotope ratios (δ¹⁵N; ‰; mean ± standard error) in relation to stable carbon isotope ratios (δ¹³C; <b>‰)</b> of the three prey categories.

<p>The grey zone indicates the minimum convex polgygon area that includes all individual data points of potential prey animals. Predominantly browsing prey species are labeled green (circle: steenbok; lower triangle: scrub hare; upper triangle: eland; polygon: springbok; diamond: kudu), predominantly grazing animals with high δ¹⁵N values are labeled yellow (diamond: springhare; lower triangle: gemsbok; circle: cattle, square: guinea fowl) and grazing animals with low δ¹⁵N values are labeled blue (warthog: diamond; hartebeest: square).