Table 1.
Life history traits of six Peromyscus species.
| Trait | Units | P. polionotus (old-field) | P. maniculatus (deer) | P. leucopus (white-footed) | P. eremicus (cactus) | P. aztecus (Aztec) | P. melanophrys (plateau) |
|---|---|---|---|---|---|---|---|
| Adult mass | g | 14.3 | 18.1 | 18.4 | 19.3 | 38.9 | 39.3 |
| Newborn mass | g | 1.6 | 1.6 | 1.9 | 2.4 | 3.8 | 3.9 |
| Litter size | no. | 3.8 | 4.0 | 3.6 | 2.4 | 2.2 | 3.0 |
| Conceptus mass | g | 5.4 | 5.7 | 5.5 | 4.8 | 6.0 | 6.9 |
| Gestation duration | months | 0.79 | 0 88 | 0.83 | 0.85 | 0.80 | 0.82 |
| Nestling period | months | 0.76 | 0.84 | 0.77 | 0.82 | 0.83 | 1.05 |
| Days between litters | d | 27.3 | 26.3 | 28.8 | 30.4 | 41.9 | 32.5 |