Abstract There are high expectations for contemporary forestry research, and sustainability research more broadly, to have impact in the form of improved institutions, policy and practice and improved social and environmental conditions. As part of this trend, there has been an evolution of research approaches that move beyond isolated, reductionist, disciplinary science toward approaches that integrate disciplines (interdisciplinary) and that engage a wider range of research stakeholders (transdisciplinary) as a way to be more effective. While these approaches evolve, there are good opportunities to learn from the experience of projects that have had impact at some level. This paper presents lessons from a case-study of a research project that succeeded in crossing the science-policy interface. Our study characterizes the design and implementation of a research project on the influence of timber harvesting on Brazil nut production using transdisciplinary research (TDR) design principles, and empirically assesses project outputs and outcomes in relation to a project theory of change (ToC) based on document review and key informant interviews. The Brazil Nut Project included some TDR elements and realized a substantial part of its ToC. The interviews identified mixed perceptions of the research design, implementation and the extent of outcomes achievement from different stakeholder perspectives. Our analysis suggests that limited stakeholder engagement was a crucial factor affecting perceptions of legitimacy and relevance, the two main TDR principles underpinning the overall research effectiveness in our study. The application of the TDR analytical framework indicates substantial scope to improve research effectiveness, even without striving for a TDR theoretical ideal.

中文翻译：

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跨越科学政策界面：秘鲁巴西坚果管理研究项目的经验教训

摘要 人们对当代林业研究和更广泛的可持续性研究寄予厚望，以改善制度、政策和实践以及改善社会和环境条件的形式产生影响。作为这一趋势的一部分，研究方法已经从孤立的、还原论的、学科科学转向整合学科（跨学科）并吸引更广泛的研究利益相关者（跨学科）的方法，以提高效率. 在这些方法不断发展的同时，也有很好的机会可以从在某种程度上产生影响的项目经验中学习。本文介绍了一个成功跨越科学政策界面的研究项目的案例研究。我们的研究利用跨学科研究 (TDR) 设计原则描述了木材采伐对巴西坚果生产影响的研究项目的设计和实施，并根据项目变革理论 (ToC) 对项目产出和成果进行了实证评估文件审查和关键线人访谈。巴西坚果项目包括一些 TDR 元素并实现了其 ToC 的很大一部分。访谈确定了从不同利益相关者的角度对研究设计、实施和成果取得程度的不同看法。我们的分析表明，有限的利益相关者参与是影响合法性和相关性认知的关键因素，这两个主要的 TDR 原则是我们研究中整体研究有效性的基础。