Skunks for students

This sentence written by a Parrott makes a fine essay topic for students:

“Skunks were introduced into the Russian Federation and adjacent independent Republics, Ukraine and the Caucasus during the 1930s, but with little success.” Why, and why?

The quotation is from the study “The Status of Scarce Non-Native Birds and Mammals in England,” by Parrott and colleagues, mentioned here yesterday.