His study on Ecology is interrelated to topics such as Niche and Interspecific competition. His studies link Ecology with Niche. As part of his studies on Gene, Peter R. Reeves frequently links adjacent subjects like Enterobacteriaceae. Peter R. Reeves integrates many fields, such as Genetics and Mutant, in his works. In his articles, he combines various disciplines, including Mutant and Mutation. Peter R. Reeves conducted interdisciplinary study in his works that combined Mutation and Bacteriophage. He integrates many fields in his works, including Bacteriophage and Escherichia coli. In his research, he undertakes multidisciplinary study on Escherichia coli and Enterobacteriaceae. His work often combines Microbiology and Molecular biology studies.