Table 4 in Courtship and Mating Behavior of the Rare, Rock-Crevice Dwelling Salamander Plethodon petraeus with a Review for Eastern North American Woodland Salamanders (Amphibia: Plethodontidae)

<p><b>Table 4. Pearson Product Moment correlation coefficients between the duration and frequency of some behaviors during the preliminary (pre-TSW) phase of courtship in the salamander <i>Plethodon petraeuS</i>. Data are from 20 individually unique pairs that engaged in ten incomplete courtships, which did not proceed to a tail-straddling walk (TSW), and ten complete courtships with TSW and spermatophore deposition. Duration <i>&frac14;</i> minutes per pre-TSW hour. Frequency <i>&frac14;</i> occurrences per pre-TSW hour. Apart <i>&frac14;</i> periods when salamanders were more than about 2.5 cm apart after their initial encounter. Close <i>&frac14;</i> periods when salamanders were within about 2.5 cm of each other but not in sustained contact via the mental gland. Dance/shuffle <i>&frac14;</i> foot dance and foot shuffle. MG <i>&frac14;</i> mental gland. See text for description of behaviors. C Coefficient for complete courtships, I coefficient for incomplete courtships, A coefficient for all courtships when both incomplete and complete courtships had very similar correlations. * <i>P</i></b>, <b>0.02, ** <i>P</i></b>, <b>0.01, *** <i>P</i></b>, 0.001.</p><table><tbody><tr><th><b>Duration of period or behavior</b></th></tr></tbody><tbody><tr><th></th><td><b>Apart</b></td><td><b>Close</b></td><td><b>MG</b></td><td><b>Discontinuous,</b> <b>female-first TSW</b></td><td><b>Continuous,</b> <b>female-first TSW</b></td></tr><tr><th></th><td><b>(</b>. <b>2.5 cm)</b></td><td><b>(2.5 cm)</b></td><td><b>sliding</b></td></tr><tr><th>Male frequency</th><td></td><td></td><td></td><td></td><td></td></tr><tr><th>Dance/shuffle</th><td></td><td>I 0.922***</td><td>A 0.528*</td><td></td><td>I 0.734*</td></tr><tr><th>MG popping</th><td></td><td></td><td></td><td></td><td>I 0.748*</td></tr><tr><th>MG swipe</th><td></td><td></td><td></td><td>C 0.704*</td><td></td></tr><tr><th>Mouth grasp</th><td>I 0.856**</td><td></td><td></td><td></td><td></td></tr><tr><th>Snout under</th><td></td><td></td><td></td><td>A 0.595**</td><td></td></tr><tr><th>Female frequency</th><td></td><td></td><td></td><td></td><td></td></tr><tr><th>Tail flex</th><td>I 0.806**</td><td></td><td></td><td></td><td></td></tr><tr><th>Undulate tail</th><td></td><td></td><td>A 0.751***</td><td></td><td></td></tr></tbody></table>