TABLE 3.
Linear regression reanalysis of fitness (log 10 W, dependent variable) over the percentage of banded individuals (predictor) in the 8 populations studied by Johannesson and Butlin (2017). One of the populations (3) was not included because of the absence of banded individuals per year. Two tests for the combined information of the 7 populations are provided (see M&M): a t test for the β mean and a Fisher test (chi‐squared test) for combining probabilities from independent tests in the column probability
| Population | Banded Frequency | N | R 2 | Beta | F test | Probability |
|---|---|---|---|---|---|---|
| W1 | 0.05 ± 0.026 | 10 | 0.38 | −0.62 | 4.97 | 0.056 |
| W2 | 0.03 ± 0.025 | 10 | 0.34 | −0.58 | 4.13 | 0.077 |
| W3 | 0.02 ± 0.012 | 9 | 0.62 | −0.79 | 11.66 | 0.011 |
| R | 0.43 ± 0.065 | 10 | 0.40 | −0.63 | 5.27 | 0.051 |
| B1 | 0.50 ± 0.122 | 10 | 0.27 | −0.52 | 2.96 | 0.124 |
| B2 | 0.52 ± 0.076 | 10 | 0.27 | −0.52 | 2.90 | 0.127 |
| B3 | 0.03 ± 0.011 | 8 | 0.40 | −0.63 | 4.02 | 0.092 |
| Combined test | −0.61*** ± 0.092 | 38.94*** | ||||
N is the number of points (between consecutive periods) in the regression. R 2 is the percentage of variance explained in the dependent variable by the predictor variable. Beta is the standardized regression coefficient in the regression. The F test and probability are corresponding values in the regression ANOVA.
p ≤.001.