Ontogenetic diet shifts, where individuals change their resource use during development, are the rule rather than the exception in the animal world. Hanna studied the effects of competition among juveniles on the likelihood of an adaptive radiation to arise using a size-structured consumer-resource model and the adaptive dynamics approach.
ten Brink, H., & Seehausen, O. (2022). Competition among small individuals hinders adaptive radiation despite ecological opportunity. Proceedings of the Royal Society B: Biological Sciences, 289(1971), 20212655 (10 pp.). doi:10.1098/rspb.2021.2655,