Information on natural resource exploitation is vital for conservation but scarce in developing nations, which encompass most of the world and often lack the capacity to produce it. A growing approach to generate information about resource use in the context of developing nations relies on surveys of resource users about their recollections (recall) of past harvests. However, the reliability of harvest recalls remains unclear. Here, we show that harvest recalls can be as accurate to data collected by standardized protocols, despite that recalls are variable and affected by the age of the recollecting person and the length of time elapsed since the event. Samples of harvest recalls permit relatively reliable reconstruction of harvests for up to 39 years in the past. Harvest recalls therefore have strong potential to inform data‐poor resource systems and curb shifting baselines around the world at a fraction of the cost of conventional approaches.

中文翻译：

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当地知识重建历史资源利用

有关自然资源开采的信息对于保护至关重要，但在发展中国家却很少，因为发展中国家涵盖了世界大部分地区，而且往往缺乏生产这些信息的能力。在发展中国家，生成有关资源使用信息的越来越多的方法依赖于对资源使用者对过去收获的回忆（回忆）的调查。然而，收获召回的可靠性仍不清楚。在这里，我们表明，尽管回忆是可变的，并且受到回忆者的年龄和事件发生后经过的时间长度的影响，但收获回忆可以与标准化协议收集的数据一样准确。收成召回样本可以相对可靠地重建过去长达 39 年的收成。因此，收获召回具有强大的潜力，可以为数据匮乏的资源系统提供信息，并以传统方法成本的一小部分来遏制世界各地基线的变化。