Figure 2 from: Rosa G, Penado A (2013) Rana iberica (Boulenger, 1879) goes underground: subterranean habitat usage and new insights on natural history. Subterranean Biology 11: 15-29. https://doi.org/10.3897/subtbiol.11.5170

Figure 2 - Polar coordinates representing the activity cycle and breeding period of Rana iberica in two different sites (inside the drainage gallery in Sazes and the whole area of Planalto Superior) in Serra da Estrela; Portugal. Dark brown areas: post-metamorphic phase; beige areas: larval phase; green areas: adults in breeding activity.