Bio if you look at orher states that have banned feral hogs or never allowed the ownership of them , their feral hog problem is still increasing. Why? Could it be that they are escaping from farms. Or as some Indiana officials think,are spreading their range.
Watch the videos poz. They explain the different mechanisms by which pigs can colonize an area. In areas where they already exist, the main way they increase their numbers is not by escaping. It is by breeding. As they breed, they continue to colonize by spreading their range. You have to kill 50-70% of them per year to just keep a population stable.
In areas where they don't already exist, like Michigan as recently as about 2000, and where they are not adjacent to regions with existing populations, the main way they have colonized is by escaping or by purposeful release by idiot hunters.
Again, if you are really interested in understanding this topic, why don't you do some research? There are hundreds of documents available from reliable sources. Here are a few....I don't put them here for you because I believe you have no interest in understanding the issues, but others might be interested.
Berryman Institute--Utah State and Mississippi State Universities
http://www.berrymaninstitute.org/pdf/managing-feral-pigs.pdf
"Pure strains of Eurasian boar reportedly are rare;
nevertheless, at least a few small localized populations
of pure animals exist in the United States (e.g.,
Michigan), having originated from farm-raised wild
boar brought down from Canada (Mayer 2009). "
Wisconsin:
http://dnr.wi.gov/org/land/wildlife/publ/wlnotebook/pig.htm
"In locations where feral pigs have more recently been discovered it is likely that these "run-wild" individuals are the result of unintentional escapes from domestic swine facilities, escapes or releases from game farms, or illegal stocking."
Missouri
http://mdc.mo.gov/landwater-care/in...ment/feral-hog-control/shoot-feral-hogs-sight
"The situation took a wrong turn in the 1990s when hog hunting for recreation began to gain popularity. Groups started raising and promoting European wild boar as a form of alternative agriculture and for hunting on licensed shooting areas. It wasn’t long before many of these hogs escaped or were intentionally released on public land."
Mississippi State Extension Service and Alabama Cooperative Extension System:
http://myfwc.com/media/1357551/WildPigManagementAL.pdf
"THE HUMAN FACTOR
The popularity of wild pigs as a game species has
played a major role in the expansion of their range
throughout the United States. In some cases, the
sudden presence of wild pigs in an area where
they previously did not exist can be attributed to
escapes of stocked animals from privately owned,
“game-proof” fenced hunting preserves. In other
cases, the sudden presence of wild pigs is a result
of illegal translocation: the practice of capturing
wild pigs, transporting them to new locations, and
releasing them into the wild."
