ArticleBiodiversity data journal2026
Intraspecific leaf morphometric diversity in the endangered and narrow endemic
Article in Biodiversity data journal, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
This study provides the first quantitative dataset on leaf morphometric diversity for Quercus trojana subsp. euboica (Papaioannou) K.I.Chr., a narrow endemic oak of Greece. This subspecies is of high conservation priority, listed in the Red Data Book of Rare and Threatened Plants of Greece and its restricted range in Northern Euboea was heavily impacted by a catastrophic wildfire in 2021. We sampled 301 leaves from three natural populations (Kerasia1, Kerasia2 and Prokopi) and processed them using a custom Python pipeline to extract 14 size and shape variables. Statistical analyses (PCA and LDA) showed that, while leaf shape remains relatively stable across populations, there is significant variation in leaf size. Specifically, the Prokopi population, where only understorey individuals were found, had much larger leaves (mean leaf area 1,015 mm
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