Stephen J. Gould's concept of punctuated equilibrium has been linked with saltation by creationists who disingenuously hope to co-opt Gould's ideas for their own ends. This was vehemently rejected by Gould prior to his death as the punctuated equilibrium is ultimately Darwinian and gradualistic.
Gould's theory indicates long periods of stasis with short periods of high evolutionary rates. The short periods are those which the Creationists attempt to equate with saltation. This is wrong in that these periods are geological in scale and the short period is a relative term and does not preclude gradualism and small modifications cumulative over hundreds or thousands of generations at the core of Darwinism.