Table 3. Components of reproductive performance by mutual mate preference in giant pandas.
| Variable |
Pairing type* |
Test | P | |||
|---|---|---|---|---|---|---|
| P–P | P–NP | NP–P | NP–NP | |||
| Total mate pairings | 12 | 4 | 7 | 3 | ||
| Total successful intromissions† | 83.3%a | 50.0%a,b | 57.1%a | 0.0%b | F3,22=2.97 | 0.05 |
| Cubs produced† | 90.0%a | 50.0%a,b | 50.0%b | 0.0%b | F3,22=3.37 | 0.04 |
| Mother reared cubs† | 88.8% | 100.0% | 100.0% | 0.0% | F1,9=0.14 | 0.87 |
| Mean number of cubs | 1.4 (0.48) | 1 | 1 (0.71) | 0 | F1,9=0.90 | 0.44 |
| Mean male age (years) | 12.3 (0.82) | 13.3 (0.75) | 11.4 (1.13) | 8.7 (0.88) | F3,22=0.90 | 0.45 |
| Mean female age (years) | 10.9 (1.16) | 8.8 (1.43) | 11 (1.69) | 13.3 (0.67) | F3,22=0.87 | 0.47 |
| Mean male body mass (kg) | 123.6 (2.01)a | 111.5 (8.83)b | 122.3 (3.37)a,b | 96 (4.58)b | F3,22=2.71 | 0.06 |
| Mean female body mass (kg) | 107 (6.95) | 105.3 (11.05) | 114.3 (3.24) | 109.0 (3.51) | F3,22=0.72 | 0.55 |
NP, non-preferred; P, preferred.
Numbers or mean values (s.e.), χ2 tests, and P values for various traits related to litter production by females that were mated with either a P or NP male. For each mating type, the female's preference of mate (P or NP) is given first, followed by the male's preference of mate. Different superscript letters (a,b) indicate significant differences (P<0.05) using a Tukey HD post hoc test.
*Parentheses are s.e.s.
†Proportion scaled to the variable above (for example, total successful intromissions out of total mate pairings).