READ ME FILE The files included here were used to do the following analysis using the programs indicated: (1) sequence alignments for mtDNA and nDNA for GARLI and MrBAYES These two files were used to estimate the maximumliklihood tree and are in the nexus format. NAMES: C_megar_mtDNAlignment.txt C_megar_nDNAphasedalignment.txt (2) mtDNA and nDNA alignments in the formate for ARLEQUIN These two file were used for calculations for Fst, nuclear diveristy and genetic distance estimates. NAMES: C_megar_mtDNA_Arlequin.arp C_megar_nDNA_Arlequin.arp (3) mtDNA and nDNA alignments in the formate for NETWORK These two files were used for caluculations of the haplotype and allele networks. NAMES: C_megar_mtDNA_network.nex C_megar_nDNA_network.nex (4) mtDNA fully resolved tree and lat/long information for each specimen used for estimation of evolution in dispersal distance in PHYLOMAPPER NAMES: C_megar_mtDNABestTreePhylomapper.tre C_megar_Locations_phylomapper.nex (5) fasta files for each basin used to phase alleles for the nuclear the locus in PHASE NAMES: EI.fasta MB.fasta SPP.fasta SRB.fasta TF.fasta BB_SPB.fasta CapeV.fasta