A Test for Temperature Effects on the Ontogeny of Shape in the Garter Snake Thamnophis sirtalis

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Abstract
The effects of maintenance temperature on static allometry and shape trajectories were examined in neonatal garter snakes (Thamnophis sirtalis). Different experimental groups were given access to a heat source for thermoregulation for 4, 12, or 24 h/d. Eye diameter, head width, head length, body size, and mass were measured shortly after birth, at 7 and 12 wk of age. Groups with less access to heat grew more slowly. Static allometric slopes and shape trajectories generally were unaffected by maintenance temperature.