happening between some groups whose belief it is that wolves have no place in human-inhabited areas and those who wish the wolf to be allowed to expand out into more of the area’s vast boreal forests. The former mostly consists of members of the rural working class who fear competition for certain large ungulate species (roe deer, moose, etc.), and who consider the wolf to be a foreign element. They argue that modern Scandinavian wolves are actually recent migrants from Russia and not the remnants of old native wolf packs. Scandinavian wolves had been nearly completely eliminated from the range due to extirpation campaigns in the 19th and 20th centuries, and were considered to be gone from the area by the 1960s. In the early 1980s, however, a single breeding pack was discovered in southern Sweden, over 1000 km away from the nearest known population in Russia or eastern Finland. The pack was small, about 10 animals, and it stayed that way for many years until its population began to noticeably increase starting in 1991. Prior to 1991, the small population lacked ideal genetic diversity, and inbreeding had been occurring to a potentially dangerous degree. Furthermore, low birth rates suggested that the wolves were apprehensive to mate with each other, which was most likely due to their close relation. Genetic data suggest that in 1991, a lone immigrant wolf from Russia migrated to the area and single-handedly restored genetic diversity to the population. A study showed that of the 72 wolves born between 1993 and 2001, 68 of them could trace their genetic heritage to this lone migrant wolf. Today, over 100 individuals range across this southern area of Scandinavia. The population remains genetically isolated, however, which is a cause of concern for some, but reason to believe exists that as the number of wolves living in this area increases, the boundaries of the population's range will creep towards the ranges of other, separate populations in Finland, thus promoting dispersal. Direct reintroduction remains an intriguing option to foster genetic diversity in the Scandinavian population in the meantime. Speculation arose as to how the original population came to be in the early 1980s. Some believe that they might be a native species – remnants of a population that somehow survived persecution. Much genetic research has been performed on this population, however, and this particular theory is not supported by the findings.