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Assessing Ecological and Social Dimensions of Success in a Community-based Sustainable Harvest Program
Environmental Management ( IF 3.5 ) Pub Date : 2021-01-21 , DOI: 10.1007/s00267-021-01425-6
Christian J Rivera 1, 2, 3 , Suzanne K Macey 2 , Mary E Blair 2 , Eleanor J Sterling 2
Affiliation  

Community-based conservation and resource management (CBCRM) programs often incorporate the dual goals of poverty alleviation and conservation. However, robust assessments of CBCRM program outcomes are relatively scarce. This study uses a multidisciplinary, systems approach to assess the ecological and social dimensions of success of an internationally acclaimed CBCRM program. This program, located in one of the largest protected areas in the Peruvian Amazon (Pacaya-Samiria National Reserve), strives for the sustainable harvest and trade of a turtle species (Podocnemis unifilis). We used mixed methods analysis, including interviews and population viability modeling, to understand three elements: how local perceptions of changes in the managed population compare to changes inferred by ecological analyses, the indicators stakeholders use to measure success, and the barriers to long-term program success and social–ecological system sustainability. We find that stakeholders perceive a growth trend in the managed turtle population, but this perception may diverge from our ecological understanding of the system under current management. Population viability analyses with a 1:1 sex ratio suggested population size will decline under two of three management scenarios (different degrees of harvest). Yet this and similar studies are plagued by a lack of species- and site-specific population parameters that could improve understanding of the system. Significant vulnerabilities exist for system sustainability, notably the recent decrease in foreign demand for the traded resource. Identifying a sustainable species-specific harvest rate, developing locally-grounded ecological and social indicators, and focusing on data-driven adaptive management will facilitate the identification of key leverage points for future management interventions.

中文翻译:

评估以社区为基础的可持续收获计划成功的生态和社会层面

以社区为基础的保护和资源管理 (CBCRM) 计划通常包含扶贫和保护的双重目标。然而,对 CBCRM 计划结果的有力评估相对较少。本研究使用多学科、系统的方法来评估国际知名的 CBCRM 计划成功的生态和社会层面。该计划位于秘鲁亚马逊地区最大的保护区之一(Pacaya-Samiria 国家保护区),旨在实现龟类 (Podocnemis unifilis) 的可持续收获和贸易。我们使用混合方法分析,包括访谈和种群生存力模型,来了解三个要素:当地对受管理种群变化的看法与生态分析推断的变化相比如何,利益相关者用来衡量成功的指标,以及长期项目成功和社会-生态系统可持续性的障碍。我们发现利益相关者认为受管理的海龟种群有增长趋势,但这种看法可能与我们对当前管理下系统的生态理解有所不同。使用 1:1 性别比进行的种群生存力分析表明,在三种管理方案中的两种情况下(不同的收获程度),种群规模将下降。然而,这项和类似的研究受到缺乏可以提高对该系统理解的物种和特定地点的种群参数的困扰。系统可持续性存在重大漏洞,特别是最近外国对交易资源的需求下降。确定可持续的特定物种收获率,
更新日期:2021-01-21
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