| the impact of past climate change on genetic variation and population connectivity in the icelandic arctic fox. | previous studies have suggested that the presence of sea ice is an important factor in facilitating migration and determining the degree of genetic isolation among contemporary arctic fox populations. because the extent of sea ice is dependent upon global temperatures, periods of significant cooling would have had a major impact on fox population connectivity and genetic variation. we tested this hypothesis by extracting and sequencing mitochondrial control region sequences from 17 arctic foxes ... | 2012 | 22977155 |