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Figure 4 | BMC Evolutionary Biology

Figure 4

From: Unsuspected diversity of Niphargus amphipods in the chemoautotrophic cave ecosystem of Frasassi, central Italy

Figure 4

Map of the Frasassi cave system showing the observed occurrences of each species. All natural and man-made cave entrances are located in the vicinity of the Sentino River. Clade 1 (green diamonds) is only found in the northeastern part of the cave system, Clade 2 (blue triangles) is found nearly everywhere except in three locations in the northeast, Clade 3 (red cross) was only sampled in one site on the northern side of the Sentino river, and Clade 4 (blue circle) was only collected in one site in the south (Lago Primo).

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