Migration Sex Comigrating pairs Observed pairs to/from same trib. Simulated pairs to/from same trib. P
Ascent (MS1) Female 19 2 4.9 ± 1.9 0.157
Male 6 3 2.2 ± 1.1 0.790
Descent (MS4) Female 22 3 6.0 ± 2.1 0.204
Male 7 3 3.0 ± 1.3 1.000