Exploring the dynamics of knowledge through generations of immigrants and their descendants can elucidate different variables that contribute to the transformation of traditional ecological knowledge. In this study, we present a quantitative investigation of intergenerational plant knowledge among Polish descendants in Brazil. We seek to answer the following questions: 1) Would plant knowledge vary with age? 2) Does the composition of species vary in accordance with the descendant’s generation? 3) Does the strengthening of identity act as a homogenizer of plant knowledge? We interviewed 150 Brazilian descendants of Polish immigrants from three generational groups (second, third, and fourth generations). We classified them into two groups based on their participation in cultural associations. We found that the fourth generational group cited significantly fewer plants than the second and third groups. However, the composition of plant knowledge was similar throughout the generations. The involvement in cultural associations did not play a role in homogenizing plant knowledge. We discuss and reflect on the differences in knowledge between generations and groups that do and do not participate in cultural organizations.

通过几代移民及其后代来探索知识的动态，可以阐明有助于传统生态知识转化的不同变量。在这项研究中，我们对巴西波兰后代之间的代际植物知识进行了定量研究。我们寻求回答以下问题：1）植物知识会随着年龄变化吗？2）物种的组成是否根据后代的世代而变化？3）加强身份认同是否可以使植物知识趋于一致？我们采访了三代人（第二，第三和第四代）的150名波兰移民的巴西后裔。根据他们对文化协会的参与，我们将他们分为两组。我们发现第四代组引用的植物明显少于第二组和第三组。但是，植物知识的组成在几代人之间都是相似的。文化协会的参与在植物知识的均质化中没有作用。我们讨论并反思了参加和不参加文化组织的世代和群体之间知识的差异。