Lifespan responses to CR among isolates of Brachionus spp. Correlation between median lifespan under AL feeding and percent change in lifespan under (A) 10% CCR (rs = −0.54, p = 0.048, df = 10) and (B) IF (IF: rs = −0.47, p = 0.09, df = 10). Line indicates linear regression; R2 value shown. Blue circles denote B. manjavacas, green diamonds denote B. plicatilis sensu stricto, a red square denotes B. plicatilis Austria, all from Clade A; purple triangles denote Brachionus spp. from Clade B. (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.)