highly significantP < 0.001
Interestingly, from an ecological perspective, there was a highly significant correlation (R 2 = 0.426, P < 0.001, which increased to R 2 = 0.694, P < 0.000001 if one possible outlier was removed from the analysis) between the δ 13 C value and the δ 15 N of the wild Sodo and Dilla flies' legs which may be attributable to the nitrogen status of the C4 and C3 primary producing plants, or which could be linked to the rainfall status leading to variation in the plant nutrient cycling in the two sites.