WHAT`S IN YOUR LOGGING CONTRACT? MANAGING WILD PIGS
Transcription
WHAT`S IN YOUR LOGGING CONTRACT? MANAGING WILD PIGS
CONGRESSMAN TOM REED: FLA INTERVIEW WITH PROPERTY RIGHTS ADVOCATE WHAT’S IN YOUR LOGGING CONTRACT? L A N D OWN E R PROMOTING PRIVATE FORESTS MANAGING WILD PIGS WHERE HAVE THE LANDOWNER PRESIDENTS GONE? MAY/JUNE 2016 WWW.FORESTLANDOWNERS.COM Hogging the Forest 12 FOREST LANDOWNER WWW.FORESTLANDOWNERS.COM Wild pigs reproduce like rabbits and tear up timberland. Here’s what a forest landowner can do to stop feral hogs – or at least contain them. By Mark D. Smith W hether you call them feral swine, wild boar, feral hogs, or simply wild pigs, these non-native animals are one of the greatest wildlife management challenges facing forest landowners and natural resource professionals. First introduced to North America in the 1500s by the Spanish explorer Hernando de Soto, wild pig populations have since expanded their range to at least 35 states with most of this expansion occurring in the past 20 to 30 years. As the recreational hunting of wild pigs grew in popularity during that period, so too did the trend of capturing, transporting, and releasing wild pigs into previously uninhabited areas to provide an additional game species for hunting purposes. Although now an illegal activity in just about every state, the damage is done and now we’re left to deal with an animal epidemic more challenging than any plant invasive species. MAY/JUNE/2016 13 (Left) Trent Smith changes out the memory card to a game camera positioned to record pigs entering the trap. Note the feeder in the trap that is used to dispense bait each day, which saves the landowner time since the trap can go five or six days before re-baiting. (Center) This is a typical corral style trap using recommended two-by-four inch mesh panels that are five-feet tall. The panels are placed to create a round corral that does not have corners. With corners, pigs will pile up eventually get out. S o what’s the big deal, you might ask? Ask any forest landowner who has dealt with wild pigs and you’ll get an earful of frustration, anger, and resignation. Not only do wild pigs compete with recreationally important native wildlife such as deer and turkey for food resources such as acorns, but pigs also have been known to prey upon bird nests, reptiles and amphibians, and other important plants and animals. In some areas oak regeneration is substantially impacted by acorn consumption while significant damage to newly planted trees can occur due to either direct consumption, rooting, or trampling of young seedlings. Some species such as longleaf pine are targeted by wild pigs due to the high level of carbohydrates in the roots of newly planted trees. And it’s not just the trees where wild pigs cause problems. Pigs also consume food plot plantings such as chufa, corn, and beans targeted for other preferred wildlife species. Then there are the rooting and wallowing activities of wild pigs that reduce water quality by increasing turbidity and bacterial contamination. These are just a few of the more common problems 14 FOREST LANDOWNER WWW.FORESTLANDOWNERS.COM forest landowners face when wild pigs take residence. Aside from the damage caused by pigs, what’s even worse is that once they become established in the area, they can become almost impossible to eradicate. Due to their high rate of reproduction (breeding twice a year at times with four to six piglets per litter on average) and early maturation (short time to reach breeding age, in some cases six months of age), populations can grow rapidly. White-tailed deer, another fast-reproducing species, create only one or two fawns per year. There is no other wild free-ranging large mammal with the reproductive ability of the wild pig. As such, a significant amount of effort will be required to remove enough pigs to keep the population in check or to eradicate it. Coupled with their relatively secretive nature and amazing adaptability, if you’re not careful in how you approach pig removal, things can become challenging in quick order. The obvious solution is to let the hunters take care of the problem. If only it were so simple. Hunting removes some pigs, but when the hunting becomes challenging, as it often does with the elusive wild pig, hunters go home. Hunting a high-density pig population (Right) These pigs were caught in a corral trap. Note the variation in pelage color and pattern as well as sizes of pigs. These naturally occurring markings help identify unique groups (sounders) of pigs, which enable the landowner to determine how many sounders are in the area and how many you should be removing before concluding a trapping effort. is enjoyable as hunters see and harvest a lot of pigs. But as the population dwindles, the hunting becomes gradually more difficult, ultimately surpassing the point of enjoyment. The recreational hunter reaches a point of diminishing returns and then quits well before putting a significant dent in the population. Thus rarely will you be able to hunt a wild pig population into submission except in areas with small isolated populations. This despite the fact that in many states pigs are considered nuisance animals and have no bag limits, no closed season, and few restrictions on how they may be killed (can be shot over bait, can be shot at night usually under permit, etc.). Yet we still have out-of-control pig populations in these same states. Hunting alone is just not enough. So why don’t states institute a bounty system to create incentives for hunters to kill more pigs? The financial incentive will, indeed, entice more hunters to spend more time in the field killing pigs. This is a logical suggestion frequently offered. However, as with many other previous bounty systems, it won’t work. That’s because there always are unscrupulous people who will find a way to cheat the system. Suppose one state implemented a bounty system requiring hunters to turn in pigtails as proof of kill. Without question, that state would receive a lot of pigtails, not only from within its boundaries but also pigtails from neighboring states and from domestic swine slaughterhouses from across the country. Aside from the damage caused by pigs, what’s even worse is that once they become established in the area, they can become almost impossible to eradicate. This brings us back to the question of what forest landowners are to do if they have pigs. Unfortunately, the burden of managing wild pigs falls upon the shoulders of the landowner. In most cases, an intensive, premeditated removal program using trapping as the primary method is MAY/JUNE/2016 15 Pigs consume food plot plantings and target longleaf pine due the high level of carbohydrates in the roots of newly planted trees. Here is an example of how repeated rubbing from pigs can injure a tree. 16 FOREST LANDOWNER WWW.FORESTLANDOWNERS.COM required to reduce the damage caused by pigs and in some cases eradicate the population. Trapping is the most effective means from both a cost and time standpoint to remove large numbers of pigs, especially in forested environments, because you can run multiple traps simultaneously. Large corral-style traps using three or four welded wire panels 16 feet in length work best and are easy to construct. Avoid box or cage traps as they don’t permit non-target species, such as deer or bears, to escape out the top of the trap if captured. Other important pieces of equipment include game cameras and feed dispensers. Positioned to record pig activity at the trap, camera images provide a wealth of information such as how many pigs are using the trap (compare this number to those you captured and don’t stop trapping until you’ve captured them all), arrival and departure times, and how well the pigs have been conditioned to the trap. A feeder with a timer is invaluable in keeping bait in the trap and minimizing the frequency in which revisits to the trap need to be made. And if you really want to go high tech, several companies produce monitoring systems that allow you to close the trap door based on camera images of what’s in your trap that are received in near real-time and sent directly to your smart phone. This technology is expensive on the front end, but will save significant time and effort each year in not having to revisit a trap until pigs are captured. Once captured, pigs should be quickly euthanized with a .22 gunshot to the brain cavity and the carcass should be properly disposed. In most states it is illegal to transport live wild pigs to a holding pen to “feed them out” or to In many states wild pigs are considered nuisance animals and have no bag limits, no closed season, and few restrictions on how they may be killed. Scott Jones, Executive Director of FLA (left) and FLA regional vice president Troy Harris display wild pigs they harvested near Columbus, Ga. Trapping is the most effective means from both a cost and time standpoint gloves since pigs can host several diseases transmissible to humans. Before consuming wild pigs, make sure the meat is cooked to an internal temperature of at least 145 degrees. There are several online resources that provide information for managing wild pigs including information on trapping and to remove large numbers of other control techniques. A comprehensive resource is pigs, especially in forested as a free PDF download from Alabama Cooperative Extension environments, because you can run multiple traps simultaneously. your local slaughterhouse. They must be killed onsite and processed accordingly if they are to be consumed. Wild pigs make great table fare whether on the grill or processed into sausage, hams, or even bacon. One thing to remember whenever handling wild pigs, such as during field dressing and butchering, is to wear latex, rubber, or nitrile “A Landowner’s Guide for Wild Pig Management” available and Mississippi State Extension that serves as a good starting point for unbiased science-based information. Because laws vary greatly among states, it’s important before undertaking any wild pig control activities to consult with your local conservation officer regarding legal means for controlling pigs in your area or for any special permits that might be required. Mark D. Smith is Associate Professor/Extension Specialist, Alabama Cooperative Extension System, School of Forestry and Wildlife Sciences, Auburn University. MAY/JUNE/2016 17