Table 2.
Explanatory power (EP) of pathogen combinations belonging to different taxonomic groups for explaining the variations of fat reserves in free-roaming cats from Majorca Island, Spain
| Co-infection | R2X (%) | Eigenvalue | R2Y (%) | Q2 | Sign | EP |
|---|---|---|---|---|---|---|
| Helminths + protozoa + viruses | 20·68 | 2·67 | 29·15 | 0·17 | S | 1·00 |
| Arthropods + helminths + protozoa + viruses | 18·18 | 2·82 | 28·87 | 0·15 | S | 0·99 |
| Helminths + protozoa | 26·17 | 2·68 | 27·42 | 0·16 | S | 0·94 |
| Arthropods + helminths + protozoa | 22·14 | 2·86 | 26·91 | 0·16 | S | 0·92 |
| Helminths + viruses | 23·16 | 2·39 | 23·29 | 0·14 | S | 0·80 |
| Arthropods + helminths + viruses | 20·13 | 2·58 | 22·96 | 0·11 | S | 0·79 |
| Helminths | 30·79 | 2·33 | 22·03 | 0·14 | S | 0·76 |
| Arthropods + helminths | 25·42 | 2·57 | 21·34 | 0·11 | S | 0·73 |
| Protozoa + viruses | 34·46 | 1·99 | 13·37 | 0·07 | S | 0·46 |
| Arthropods + protozoa | 37·26 | 2·23 | 11·47 | 0·05 | S | 0·39 |
| Protozoa | 73·39 | 2·20 | 10·07 | 0·06 | S | 0·35 |
| Arthropods + viruses | 26·20 | 1·45 | 5·42 | −0·08 | n.s. | 0·19 |
| Viruses | 55·08 | 1·53 | 2·89 | −0·01 | n.s. | 0·10 |
| Arthropods | 67·57 | 1·89 | 1·83 | −0·02 | n.s. | 0·06 |
Models were ranked with respect to the percentage of observed body-condition variability (R2Y) explained by a specific co-infection. The R2X value indicates the percentage of variability of the X component explained by a specific co-infection of parasites belonging to one or different taxonomic groups.
Q2 index (i.e. leave-one-out cross-validation); S indicates statistically significant Partial Least Squares Regression (PLS-R) model (α = 0·05); n.s. non-significant. EP indicates the percentage of explained variance with respect to the PLS-R model (i.e. helminths + protozoa + viruses) explaining the greatest proportion of observed body-condition variability (i.e. 29·15%).