TROPHIC POLYMORPHISM AND BEHAVIORAL DIFFERENCES DECREASE INTRASPECIFIC COMPETITION IN A CICHLID, HERICHTHYS MINCKLEYI

Resource polymorphisms, or morphological variations related to resource use, are common in fishes and are thought to be a possible step in speciation. This study experimentally tests the hypothesis that fitness (as estimated by growth rates) is increased by the presence of multiple trophic morphotyp... View More