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Fig. 5 | Environmental Evidence

Fig. 5

From: What evidence exists for temporal variability in Arctic terrestrial and freshwater biodiversity throughout the Holocene? A systematic map protocol

Fig. 5

Diagram showing how coded temporal metadata is represented within the graph structure. Circles and arrows represent nodes and links respectively. Blue nodes are a common time index; orange nodes represent individual dates within studies; and yellow nodes represent the timelines within individual studies that arise from individual dates. All dates are defined in years before present (yBP), where 0 = 1950AD

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