Table 2 Path analysis of rotifer clone (N = 178) body size as related to the limnological parameters of 10 ponds. A – goodness-of-fit indices chosen according to recommendations of O'Rourke and Hatcher56; B – standardized path coefficients for the Version 1 model.

From: Body size variability across habitats in the Brachionus plicatilis cryptic species complex

Model

χ2

df

P > χ2

CFI

SRMR

RMSEA

(RMSEA CL90)

A

       

Initial

1.14

1

0.28

1.00

0.014

0.029

(0.000–0.204)

Version 1

2.85

4

0.58

1.00

0.026

0.000

(0.000–0.097)

Version 2

7.85

6

0.25

0.99

0.047

0.042

(0.000–0.112)

Path

Standardized estimate

SE

t-value

p-value

B

    

Oxygen concentration to Body size

− 0.120

0.086

− 1.40

0.16

pH to Body size

0.408

0.092

4.44

 < 0.0001

Salinity to Body size

− 0.127

0.087

− 1.46

0.15

pH to Oxygen concentration

0.480

0.051

9.44

 < 0.0001

Salinity to Oxygen concentration

0.128

0.014

8.99

 < 0.0001

Temperature to pH

− 0.271

0.057

− 4.75

 < 0.0001

Salinity to pH

0.571

0.048

11.81

 < 0.0001

  1. Note: Initial (a priori) model as illustrated in Fig. 3A; Version 1 – the model without the paths of Temperature to Salinity, Temperature to Body size and Temperature to Oxygen concentration; Version 2 – reduction of Version 1 by removing the paths of Oxygen concentration to Body size and Salinity to Body size.
  2. χ2 – chi-square; df – degrees of freedom; CFI – Comparative Fit Index; SRMR – Standardized Root Mean Square Residual; RMSEA – Root Mean Square Error of Approximation; RMSEA CL90 – RMSEA 90% Confidence Limits.
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