Resource Partitioning between Two Piranhas (Serrasalmus gibbus and Serrasalmus rhombeus) in an Amazonian Reservoir

Table 2

Mean observed and simulated Pianka indices and their respective p values for the dietary overlap of S. gibbus and S. rhombeus in the Coaracy Nunes reservoir in Ferreira Gomes, Amapá (Brazil).

Parameter	Seasonal	Nycthemeral
		Flood	Dry
(): observed mean	0.997	0.531	0.519
(): simulated mean	0.241	0.606	0.606
Variance of the simulated indices	0.083	0.001	0.002
C score: p (observed ≤ expected)	1.000
C score: p (observed ≥ expected)		0.982	0.984

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