Phifer-Rixey, M., Heckman, M., Trussell, G., and P.S. Schmidt. The maintenance of clinal variation for shell color phenotype in the flat periwinkle Littorina obtusata (poster). European Society for Evolutionary Biology, Uppsala, Sweden. August 2007.
Evolution in Changing Environments
Phifer-Rixey, M., Heckman, M., Trussell, G., and P.S. Schmidt. The maintenance of clinal variation for shell color phenotype in the flat periwinkle Littorina obtusata (poster). European Society for Evolutionary Biology, Uppsala, Sweden. August 2007.