Table 1
Results of the ANOSIM and SIMPER analyses of animal prey in the diet of allopatric and sympatric pumpkinseed Lepomis gibbosus and the cichlid Australoheros facetus in the Lower Guadiana Basin (Portugal) throughout the dry-season. Asterisks represent significant differences in pairwise comparisons of animal prey proportions (R) based on the sequential Bonferroni method (α = 0.05, k = 3). Prey categories contributing >20% to average dissimilarity (AvD) are highlighted in bold and ranks of prey contributions are shown in brackets. Prey codes are: CHI, Chrironomidae; HEM, Hemiptera; EPH, Ephemeroptera; OST, Ostracoda; COP, Copepoda; HYD, Hydracarina; Other, Other prey.
| R | AvD | CHI | EPH | HEM | OST | COP | HYD | OPREY | |
|---|---|---|---|---|---|---|---|---|---|
| Early dry-season | |||||||||
| Allopatry vs. Sympatry | |||||||||
| Pumpkinseed | 0.17* | 48.61 | 17.43(3) | 21.93(1) | 20.55(2) | ||||
| Cichlid | 0.44* | 58.59 | 26.99(1) | 21.02(2) | 15.16(3) | ||||
| Sympatry | |||||||||
| Pumpkinseed vs. Cichlid | 0.28* | 42.41 | 18.12(3) | 23.66(1) | 18.59(2) | ||||
| Late dry-season | |||||||||
| Allopatry vs. Sympatry | |||||||||
| Pumpkinseed | 0.22* | 49.06 | 19.23(1) | 13.40(4) | 15.82(2) | 14.89(3) | |||
| Cichlid | 0.85* | 69.16 | 21.91(2) | 28.29(1) | |||||
| Sympatry | |||||||||
| Pumpkinseed vs. Cichlid | 0.23* | 34.05 | 14.00(3) | 24.56(1) | 24.33(2) | ||||
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