Phenotypic Plasticity and Adaptation in a Holometabolous Insect: The Chironomid Midge
Figure 1
The relationship between salt concentration and gill length in the larvae of Chironomus transvaalensis. Open circles: ratio of length of posterior prolegs (a) to length of ventral tubule (b). Black dots: ration of length of posterior prolegs (a) to length of anal papillae (c). Terminal abdominal segments 11 and 12 are shown, after McLachlan [16]. Salt concentration, on the -axis, is given as conductivity; length (mm) is on the -axis.
