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. 2012 Mar;2(3):574–592. doi: 10.1002/ece3.72

Table 7.

MANCOVA analyses examining how shape variation is related to various factors. As a result of finding significant interactions between ecomorph and genetic cluster, separate MANCOVA analyses were performed for each genetic cluster (St. Lawrence, Hudson, and Ontario). Note that partial variance explained does not sum to unity (Langerhans and DeWitt 2004).

F df (numerator, denominator) P Wilk's partial λ Partial variance explained (%)
All Populations
 Centroid size 41.33  28,445  0.0001 0.278 72.2
 Ecomorph  4.53  28,445 < 0.0001 0.778 22.2
 Genetic cluster 24.28  56,890 < 0.0001 0.156 60.4
 Ecomorph × cluster  2.58  56,890 < 0.0001 0.740 13.9
 Lake (Cluster)  7.45 252,3845 < 0.0001 0.033 26.7
St. Lawrence populations
 Centroid size  8.87  28,90 < 0.0001 0.266 73.4
 Ecomorph  3.24  28,90 < 0.0001 0.498 50.2
 Lake  7.50  56,180 < 0.0001 0.090 70.0
 Ecomorph × lake  1.48  56,180 < 0.0283 0.469 31.5
Hudson populations
 Centroid size  8.11  28,89 < 0.0001 0.110 89.0
 Ecomorph  2.17  28,89  0.0032 0.594 40.6
 Lake  6.06  56,178 < 0.0001 0.118 65.6
 Ecomorph × lake  1.18  56,178 0.214 0.533 27.0
Ontario populations
 Centroid size 13.89  28,201 < 0.0001 0.341 65.9
 Ecomorph  6.68  28,201 < 0.0001 0.694 30.6
 Lake  7.50  140,997 < 0.0001 0.029 83.0
 Ecomorph × lake  3.79  140,997 < 0.0001 0.122 65.1