Similar title to Egas, M., Dieckmann, U. ORCID: https://orcid.org/0000-0001-7089-0393, & Sabelis, M.W. (2004). Evolution Restricts the Coexistence of Specialists and Generalists - The Role of Trade-Off Structure. IIASA Interim Report. IIASA, Laxenburg, Austria: IR-04-004