This article analyzes the incorporation of normative principles of governance in the management of protected areas on the Peninsula of Baja California, Mexico, during the period 2007-2011. A review of the literature permitted an evaluation of the following indicators: effectiveness, efficiency, participation, inclusiveness, and equality. It was found that important changes leading toward improved governance have taken place at the administrative level. However, these changes are still insufficient to bring about greater stakeholder involvement; therefore, continued improvement is necessary for governmental management practices and refining participatory mechanisms. [ABSTRACT FROM AUTHOR]