Fig. 3From: Noise constrains the evolution of call frequency contours in flowing water frogs: a comparative analysis in two cladesComparisons of frequency modulation (FM) and harmonic traits between still-water species and running-water species across Ranidae and/or Bufonidae. a Proportion of species with FM patterns in Ranidae and/or Bufonidae. b Proportion of species with harmonic patterns in Ranidae and/or BufonidaeBack to article page