Summary
1. The agamid lizard Stellio stellio L. accelerates quickly and reaches maximum speed over short distances.
2. Maximum speed on the level is proportional to body mass to the ⅓ power. This relation differs from predictions based on an interspecific scaling model of “geometric” similarity (M0) and is intermediate between predictions based on interspecific scaling models of “elastic” similarity (M¼) and of “static stress” similarity (M⅖).
3. Maximum speed was also measured on slopes ranging from −15° to + 60°. The effect of slope on speed varies with body mass. The maximum speed of large lizards decreases on steep slopes, but that of small lizards is remarkably independent of slope.
- © 1982 by Company of Biologists