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Application of Digital Field Photographs as Documents for Tropical Plant Inventory

机译：数字野外照片作为热带植物清单文件的应用

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Premise of the study: We tested the credibility and significance of digital field photographs as supplements or substitutes for conventional herbarium specimens with particular relevance to exploration of the tropics. Methods: We made 113 collections in triplicate at a species-rich mountain in the Philippines while we took 1238 digital photographs of the same plants. We then identified the plants from the photographs alone, categorized the confidence of the identification and the reason for failure to identify, and compared the results to identifications based on the dried specimens. Results: We identified 72.6% of the photographic sets with high confidence and 27.4% with low confidence or only to genus. In no case was a confident identification altered by subsequent examination of the dried specimen. The failure to identify photographic sets to species was due to the lack of a key feature in 67.8% of the cases and due to a poorly understood taxonomy in 32.2%. Discussion: We conclude that digital photographs cannot replace traditional herbarium specimens as the primary elements that document tropical plant diversity. However, photographs represent a new and important artifact that aids an expedient survey of tropical plant diversity while encouraging broad public participation.
机译：研究的前提：我们测试了数字野外照片作为传统标本室标本的补充或替代品的可信度和重要性，这些标本与热带地区的探索特别相关。方法：我们在菲律宾一个物种丰富的山区一式三份地收集了113个集合，同时为相同的植物拍摄了1238张数码照片。然后，我们仅从照片中识别出植物，将识别的可信度和识别失败的原因分类，然后将结果与基于干燥标本的识别进行比较。结果：我们确定了72.6％的高可信度摄影集和27.4％的低可信度或仅属属摄影集。在任何情况下，干燥样品的后续检查都不会改变置信度。未能识别出种类的摄影集是由于在67.8％的案例中缺少关键特征，而在32.2％的案例中由于对分类法的了解不足而导致的。讨论：我们得出结论，数码照片不能代替传统的植物标本室标本作为记录热带植物多样性的主要元素。但是，照片代表了一种新的重要文物，有助于对热带植物多样性进行权宜的调查，同时鼓励公众广泛参与。

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