An Evaluation of the Role of Sensory Drive in the Evolution of Lake Malawi Cichlid Fishes

Figure 9

A modified version of the sensory drive schematic proposed by Endler [21]. Violet boxes denote the portions of the model that coincide with the original sensory bias hypothesis first proposed by Ryan and Rand [20]. The red box represents the primary driver of sensory stabilization or diversification (the environmental transmission channel). Solid arrows represent selective forces that are likely active in Lake Malawi, while dashed arrows represent factors whose selective influence on sensory evolution in Lake Malawi is marginalized due to environmental characteristics.