Table 3. Contact zone cline parameters and LRT results of the null hypothesis that cline centres and widths do not differ significantly between the maternal and parental marker for a given transect.
| Parameter | cytb | SMCY11 | ∑lnLu | ∑lnLc | Δ=∑lnLc-∑lnLu | X 2=2 Δ |
|---|---|---|---|---|---|---|
| Jura | ||||||
| Cline centre | 28.98 (27.68–30.38) | 17.5 (17.15–18.05) | −63.7 | −128.399 | 64.699 | *129.398 |
| Cline width | 16.81 (13.31–21.91) | 1.59 (0.89–3.34) | −63.7 | −80.871 | 17.171 | *34.342 |
| lnLu | −53.973 | −9.727 | ||||
| Grisons | ||||||
| Cline centre | 49.32 (46.12–52.22) | 65.47 (64.47–67.37) | −76.6 | −111.595 | 34.995 | *69.990 |
| Cline width | 39.47 (31.00–50.97) | 0.25 (0.0–2.0) | −76.6 | −104.987 | 28.387 | *56.774 |
| lnLu | −76.6 | −0.000 | ||||
| Valais (C–W) | ||||||
| Cline centre | 28.4–70 (17.7–75.7) | 74.23 (45.8–77.9) | −0.701 | −0.702 | 0.001 | 0.002 |
| Cline width | 2.1–10.8 (0.01–37.7) | 10.19 (2.2–56.6) | −0.701 | −0.701 | 0.000 | 0.000 |
| lnLu | −0.000 | −0.701 | ||||
| Valais (W–I) | ||||||
| Cline centre | 100.3 (99.9–105.2) | 78.4 (78.1–81.6) | −0.001 | −26.446 | 26.445 | *52.890 |
| Cline width | 0.1–2 (0.01–10.9) | 0.1–1.1 (0.01–9.2) | −0.001 | −0.001 | 0.000 | 0.000 |
| lnLu | −0.001 | −0.000 | ||||
Maximum likelihood estimates of the positions of cline centres and their widths are given in kilometres and confidence intervals (two log-likelihood units≈95% confidence interval) are shown in parentheses. lnLu is the unconstrained log-likelihood support. lnLc is the maximum constrained likelihood in an analysis where cline centre or width was held constant at intervals while allowing the other parameter (width or centre) to vary freely. An asterisk indicates rejection of the null hypothesis at α=0.01 (critical χ2 value=6.635; one degree of freedom). Estimates for centres and widths in the Valais transect are given separately for the two different transition zones (Central–Western and Western–Italian).