TABLE 1.

Results of simple and partial Mantel tests between distance matrices for genotypic dissimilarity, environmental dissimilarity, geographic distance, and temporal separation of isolates from each sampling eventa

Dependent variableIndependent variableControlling forrP value
Environmental dissimilarityTemporal separation0.0810.0034
Geographic distanceEnvironmental dissimilarity0.1410.0019
Genotypic dissimilarityWater temperature0.0230.1094
Genotypic dissimilaritySalinity0.0330.0366
Genotypic dissimilarityTurbidity−0.0100.3094
Genotypic dissimilarityAmmonium0.0490.0078
Genotypic dissimilarityEnvironmental dissimilarity0.0610.0004
Genotypic dissimilarityEnvironmental dissimilarityGeographic distance0.0470.0074
Genotypic dissimilarityEnvironmental dissimilarityTemporal separation0.0530.0028
Genotypic dissimilarityGeographic distance0.1020.0001
Genotypic dissimilarityGeographic distanceEnvironmental dissimilarity0.0940.0001
Genotypic dissimilarityGeographic distanceTemporal separation0.0970.0001
Genotypic dissimilarityTemporal separation0.1010.0001
Genotypic dissimilarityTemporal separationGeographic distance0.0950.0001
Genotypic dissimilarityTemporal separationEnvironmental dissimilarity0.0960.0001
  • a Simple and partial Mantel test data are shown in rows containing two and three comparison variables, respectively. All correlations were statistically significant (P < 0.05 with false discovery rate correction), except for the simple Mantel tests between genotypic dissimilarity and water temperature and between genotypic dissimilarity and turbidity. Ranges of r in the text represent the individual correlations of geographic, environmental, or temporal distance with genotypic dissimilarity when both remaining factors were accounted for.