Fig. 3.

Haplotype diversity and distribution of the four Collembola species among sites along the QAR and the QMM, including (A) a new genetic lineage and expanded distributional range for the SVL springtail G. hodgsoni, (B) low divergence (<1.6%) within B. sudpolaris, (C) low divergence (<0.4%) within T. mediantarctica, and (D) spatial isolation of the three genetically diverged lineages (11.7 to 13.9% p distance) of A. subpolaris (type locality: east of Shackleton Glacier). Sites where only one species was found are indicated with stars, while sites where any given species was not found are indicated with small white circles. Numbers in the gray boxes indicate the number of mutational steps between haplotypes.