Table 2.
Results of Generalized Linear Mixed Model (GLMM) with negative binomial distribution and log link explaining the abundance of helminth species. Disc length (DL), sex (males or females), gonadal development stages (immature, initial development, advanced development and resting) and Condition Factor are predictors. Host species and collection site are random variables. Marginal significance statistical (*) and significant statistically (**) of p-values are indicates.
| Fixed effects | Category | Estimate (SE) | z value | p value |
|---|---|---|---|---|
| Intercept | 3.86 (2.03) | 1.89 | 0.0585* | |
| Disc length | 0.10 (0.05) | 2.18 | 0.0287** | |
| Sex | ||||
| Male vs. | Female | 0.35 (0.69) | 0.49 | 0.6208 |
| Gonadal development | 0.59 (0.33) | 1.74 | 0.0819 | |
|
Condition Factor (K) |
−5.24 (1.61) |
−3.23 |
0.0012** |
|
|
Random effects |
Variance (SE) |
Correlation |
||
|
Locality |
(intercept) |
0.01 (0.11) |
||
| Host | ||||
| Potamotrygon amandae vs. | Potamotrygon falkneri | 0.39 (0.62) | −1.00 | |