H. B. Shaffer

Retention of low-fitness genotypes over six decades of admixture between native and introduced tiger salamanders

H. Shaffer, J. Johnson, Benjamin M. Fitzpatrick, 2010, BMC Evolutionary Biology.

Rapid fixation of non-native alleles revealed by genome-wide SNP analysis of hybrid tiger salamanders

S. Voss, H. Shaffer, J. Smith, 2009, BMC Evolutionary Biology.