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Table 2 Genus x site mean vector (Figure 4 B) statistics for each genus

From: Trophic diversity in the evolution and community assembly of loricariid catfishes

Genus

Mean vector (μ)

Length of mean vector (r)

Concentration

Circular variance

Circular standard deviation

Rayleigh's Z (P)

Rao's spacing test (P)

Astroblepidae

 Astroblepus

58°

0.83

0.86

0.17

35°

0.128

–

Loricariidae

Hypoptopomatinae

 Hypoptopoma

254°

0.34

0.00

0.66

85°

0.837

–

Hypostominae

Ancistrini

 Ancistrus†

189°

0.53

1.05

0.47

65°

0.08

0.50 > P > 0.10

 Baryancistrus

28°

0.44

0.48

0.56

73°

0.487

0.90 > P > 0.50

 Chaetostoma*

180°

0.88

2.54

0.12

29°

0.004

< 0.01

 Dekeyseria

271°

1.00

–

–

–

0.512

–

 Etsaputu

96°

0.74

0.23

0.26

45°

0.392

–

 Hemiancistrus†

62°

0.68

1.68

0.32

50°

0.094

0.50 > P > 0.10

 Hopliancistrus

63°

0.31

0.00

0.69

88°

0.864

–

 Hypancistrus*

141°

0.93

2.79

0.07

22°

0.02

< 0.05

 Lasiancistrus

194°

0.46

0.55

0.54

71°

0.458

0.50 > P > 0.10

 Leporacanthicus

128°

0.92

0.66

0.08

23°

0.202

–

 Lithoxus

70°

1.00

–

–

–

0.512

–

 Panaque

84°

0.53

0.92

0.47

65°

0.258

0.50 > P > 0.10

 Peckoltia

76°

0.46

0.66

0.54

71°

0.362

0.50 > P > 0.10

 Pseudacanthicus

110°

1.00

–

–

–

0.512

–

 Pseudancistrus†

36°

0.76

0.98

0.24

42°

0.093

0.10 > P > 0.05

 Pseudolithoxus†

94°

0.94

2.44

0.06

20°

0.056

–

 Scobinancistrus

149°

1.00

–

–

–

0.512

–

 Spectracanthicus

86°

1.00

–

–

–

0.512

–

Hypostomini

 H. cochliodon grp.

263°

0.20

0.00

0.80

103°

0.713

0.99 > P > 0.95

 H. plecostomus grp.*

307°

0.60

1.41

0.40

58°

0.005

< 0.01

Pterygoplichthyini

 Pterygoplichthys

254°

0.73

0.22

0.27

45°

0.399

–

Loricariinae

Farlowellini

 Farlowella

222°

0.54

0.76

0.46

64°

0.459

–

Harttiini

 Harttia

2°

1.00

152.99

0.00

1°

0.137

–

 Lamontichthys

174°

1.00

–

–

–

0.512

–

 Sturisoma

227°

0.70

0.20

0.30

48°

0.432

–

Loricariini

 Limatulichthys

294°

0.83

0.89

0.17

35°

0.124

–

 Loricaria

331°

0.66

1.56

0.34

52°

0.111

0.10 > P > 0.05

 Loricariichthys

356°

0.89

0.49

0.11

27°

0.229

–

 Pseudoloricaria

331°

1.00

–

–

–

0.512

–

 Rineloricaria

354°

0.51

0.84

0.49

67°

0.289

0.10 > P > 0.05

 Spatuloricaria

93°

0.24

0.00

0.76

97°

0.732

0.10 > P > 0.05

  1. Significance of mean vectors determined by Rayleigh's Z and uniformity of vector distribution measured by Rao's Spacing test. Taxa with significant mean vectors designated with * (P < 0.05) or † (0.10 > P > 0.05). Total number of vectors = 120 (Figure 3C).