Marbled polecat of at least 30% in the previous 10 years. In 1996, it had been considered a species of least concern. The decline in marbled polecat populations thought to be due to habitat destruction (cultivation) and reduction in available prey by use of rodenticides. In Pakistan, it is listed as an endangered species. The marbled polecat was once sought for its fur, generally known as "fitch" or more specifically, "perwitsky" in the fur trade.<ref name="http://www.merriam-webster.com/dictionary/perwitsky"></ref> In 1945, Kabul shopkeepers were reported to have kept marbled polecats to exterminate rodents. Their journals also show some developed an adverse reaction to the strong
European polecat and breed, as males are sterile, though females are fertile. The first captive polecat-mink hybrid was created in 1978 by Soviet zoologist Dr. Dmitry Ternovsky of Novosibirsk. Originally bred for their fur (which was more valuable than that of either parent species), the breeding of these hybrids declined as European mink populations decreased. Studies on the behavioural ecology of free-ranging polecat-mink hybrids in the upper reaches of the Lovat River indicate hybrids will stray from aquatic habitats more readily than pure minks, and will tolerate both parent species entering their territories, though the hybrid's larger size (especially the male's) may