Figure 1.

Schematic of the experimental design. Metabolic rate (at 17°C) and growth (at 12°C and 22°C) were measured for 440 and 368 animals, respectively. Five unique clones of D. pulex were represented in each temperature treatment, and represented approximately equally at all factorial levels. This number of levels and animals yields approximately 10 inds. clone⁻¹ generation⁻¹ temperature⁻¹ for metabolism measurements and approximately 13 inds. clone⁻¹ generation⁻¹ temperature⁻¹ for growth measurements. (Online version in colour.)