The concept of ecosystem services acquired a growing attention in Brazil in the last fifteen years. This fact was observed in the development of legal norms and court decisions throughout the country. Using the theory of densification normative by Thibierge et al. (2013), this paper analyses the theory’s seven parameters in two legal sources – legislation and jurisprudence – which identify a densification normative process over the concept of ecosystem services. This paper concludes that, under the prism of this theory, this densification normative process is being observed and it may contribute to the assignment of legal value to ecosystem services.

在过去的十五年中，生态系统服务的概念在巴西受到越来越多的关注。在全国各地制定法律规范和法院判决时都观察到了这一事实。使用Thibierge等人的致密化规范理论。（2013年），本文在两个法律渊源（立法和法学）中分析了该理论的七个参数，它们确定了生态系统服务概念的致密化规范过程。本文的结论是，在这种理论的支撑下，正在观察到这种致密化的规范过程，它可能有助于将法律价值分配给生态系统服务。