Table 2. Factors affecting the number of ticks per host animala.
Region | Host | Tick abundance | Host abundance | Host species richness | R2 |
---|---|---|---|---|---|
Larvae | |||||
Northb | Mice | 0.622*** | −0.043*** | 0.012 | 0.867*** |
Southb | Mice | 0.110 | −0.002 | 0.004 | 0.191 |
Southb | Skinks | 0.974*** | −0.041 | 0.070 | 0.704*** |
Nymphs | |||||
Northb | Mice | 0.111 | −0.002 | 0.002 | 0.408 |
South | Mice | −0.005* | −0.001 | <0.0001 | 0.472 |
Southb | Skinks | 0.566*** | 0.005 | −0.004 | 0.868*** |
R2 values are for GLMs with “site” as a class variable (to account for environmental differences among sites) plus the variables “tick abundance” (= number of ticks collected from all hosts at the array per sample), “host abundance” (= number of host individuals captured at the array per sample), and “host species richness” (= total number of host species captured at the sample array).
aEntries for each variable are model coefficients. Significance for independent variables and for entire model (R2): *p < 0.05, **p < 0.01, ***p < 0.001.
bNumbers of ticks log transformed to improve model fit.
GLM, general linear model.