Amplified Fragment Length Polymorphism (AFLP) data obtained for 34 Microtus longicaudus individuals at 91 loci

Prior to removal of pest species from an area, resource managers must determine if re-immigration from another population is possible. Voles inhabiting Saddle Rock on the southern Oregon coast are suspected to be partially responsible for declines in the Leach�s storm petrel colony on the island. The island is very close to the mainland, and it is potentially accessible during below-average low tides. USGS scientists Mark Miller and Susan Haig and colleagues used genetic techniques to assess how much population connectivity the island voles had. Results suggest there is little individual movement between island and mainland vole populations. If local resource managers decide to remove voles from the island to safeguard the important petrel nesting area, it is unlikely that immediate vole recolonization will occur.

Data are in an Excel spreadsheet and are organized as follows. Column A contains the sample identifier for each of 34 individuals that were included in analyses. An additional 9 individuals with the suffix �R� are replicates of samples that were included in analyses as a quality control measure. Samples beginning with �SR� originated on Saddle Rock, whereas samples beginning with �CP� originated on Crook Point.

Columns B through CN contain data from 91 AFLP loci that were included in analyses. Column headings reflect a shorthand annotation of the form �primer combination � marker size� (i.e., �C2-207� indicates a 207bp fragment observed with primer combination C2). In each column, �1� reflects the presence of a marker, whereas �2� indicates its absence.