| Autor: |
Smith, Michael H., McGinnis, John T. |
| Zdroj: |
Population Ecology; December 1968, Vol. 10 Issue: 2 p115-126, 12p |
| Abstrakt: |
Litter size was positively correlated with latitude and altitude but not with production of offspring or with body size in Peromyscus. Increased litter size in northern populations probably reflects shortening the breeding season by climate and not a greater mortality rate at northern latitudes compared to southern latitudes. Production of offspring was negatively correlated with body size but not with latitude, altitude, or litter size. This is probably due to larger species living longer and taking longer to mature. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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