Table 6 Principal components analysis for sexual behaviour variables during the rut in male Iberian red deer (Cervus elaphus hispanicus). Correlations between variables and the principal components greater than 0.40 are marked in bold. Eigenvalues proportion of variance and cumulative variance for each component are shown

Roaring

0.674

−0.199

0.033

0.092

Flehmen

0.439

0.516

−0.041

−0.073

Antler rubbing

0.368

−0.496

0.106

−0.031

Parallel walk

0.275

−0.353

−0.355

− 0.346

Fight

0.042

−0.091

−0.395

0.889

Female harassment

0.367

0.546

0.037

0.058

Female mount

0.068

−0.121

0.838

0.267

Eigenvalue

1.451

1.399

1.036

1.001

Proportion of variance

0.207

0.199

0.148

0.144

Cumulative proportion

0.207

0.407

0.555

0.698