Outdoors
ODWC Part of United Effort to Deal With Feral Swine
Nov. 16, 2016-Along with the Wildlife Services Division of the Oklahoma Department of Agriculture, Food and Forestry, the Oklahoma Department of Wildlife Conservation is taking positive steps to address the feral swine situation in Oklahoma.
Feral swine have become a concern across Oklahoma because of their expanding numbers and the damage they inflict to the landscape. Feral swine have been detected in 70 of the state’s 77 counties, but they are most prevalent across the southern parts of Oklahoma. They are also most active at night.
Feral hogs congregate in “sounders,” as the large groups are called. Each sounder can tear up several acres every night looking for food, which can include cropland, pastures, golf courses and even residential lawns. They will eat about 4 percent of their body weight daily.
Besides destruction of property, other concerns about feral swine are:
- Population growth. Feral swine have high reproductive potential, and piglets become sexually active at about 6 months old. An estimated 600,000 to 1.5 million feral swine are in Oklahoma.
- Disease transmission. Feral swine can be infected with brucellosis and leptospirosis, which can be passed to people. Pseudorabies is found in about one-third of the feral swine population. This disease can spread to dogs, cattle, goats and sheep. Feral hogs also can carry and transmit many other diseases.
- Threat to wildlife: Native species are being stressed by the activities of feral swine. They compete for food resources that also support deer, raccoons, black bears and opossums. Wildlife can contract many diseases from feral swine. Feral swine have few natural predators, and in some cases, the feral swine have begun pursuing wild animals as prey items.
State agencies and landowner groups are highly interested in what can be done to control the feral swine problem. Experts have determined that the best methods are trapping – especially whole sounder trapping — and aerial gunning. Other forms of control are largely ineffective and can actually reduce the effectiveness of trapping.
Landowners who have experienced depredation due to feral swine can contact the state Agriculture Department’s Wildlife Services Division at (405) 521-4039.
Jeff Pennington, a biologist with the Oklahoma Wildlife Department, said eradication is not realistic on a landscape level. A realistic landscape goal is to slow the spread and reduce the density of feral hogs by the use of trapping and aerial gunning.
The Wildlife Department views feral swine as vermin and maintains they should not be glamorized in any way, even though feral hogs are desired by some people as target animals on hunting lands. Last year, the Wildlife Department declared it illegal to take feral hogs alive from wildlife management areas.
The Wildlife Department supports the Agriculture Department’s creation of a “swine free zone” where feral swine cannot be transported, along with measures to require accountability from anyone who transports feral swine in other parts of Oklahoma.
People who are having problems with feral swine without a depredation issue are encouraged to use the most effective methods including trapping. A secondary, less effective option is night shooting of feral swine, which the Wildlife Department believes should be a method of last resort because of the issues it creates that affect safety.
In response to Gov. Mary Fallin’s executive order in May 2016, the Wildlife Department has instituted a procedure to allow people to obtain exemptions from existing hunting regulations that prohibit night shooting. The new procedure became operational Nov. 1, and its goal is to provide landowners relief from feral swine while also protecting wildlife.
Only a deed-holding landowner (or a designee with written landowner permission) can register a property for a night-shooting exemption. The exemption procedure provides immediate approval for a landowner (or a designee with landowner’s written permission) to shoot feral swine on the property at night.
A landowner shooting feral swine on his property at night must carry his or her exemption number. Anyone else shooting feral swine at night is required to carry the property’s exemption number and written permission from the landowner or the landowner’s single designee. Rules are more stringent during the 16-day deer gun hunting season, limiting eligible shooters to the landowner, members of the landowner’s family, or the landowner’s single designee.
Feral hog night-shooting exemptions are available in several ways:
- Filling out information on the Wildlife Department’s website, www.wildlifedepartment.com.
- Downloading the “OK Hog Shooting Exemption” mobile app for Apple or Android.
- Calling, e-mailing or texting the game warden based in the county where the property is situated, or the game warden in an adjacent county.
Read the complete feral swine night-shooting exemption rules at www.wildlifedepart ment.com/sites/default/files/Feral%20Swine%20Emergency%20Rule%20%2716_0.pdf.
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Outdoors
Don’t Give Up on the Pond Yet
By Savannah Magoteaux
Right now, our ponds are looking a little tired.
Water levels may be down after weeks of heat and limited rain. Vegetation can be thick around the edges, the water may be warm and murky, and the bass that seemed willing to bite in spring can feel impossible to find.
But don’t give up on the pond just yet.
Late summer can be a hard time for fish. Warm water holds less dissolved oxygen than cool water, and oxygen levels matter even more in ponds with heavy plant or algae growth. In Oklahoma, oxygen depletion is one of the leading causes of pond fish kills.
Those conditions also change where fish spend their time. During the hottest part of the day, bass may slow down and move to more comfortable spots, including deeper water, shade, aquatic vegetation or structure. That makes early morning and evening good times to fish during the last hot weeks of summer.
Pay attention to cover, too. Submerged vegetation, brush, logs and other structure give bluegill and other small fish places to find food and protection, and bass are often nearby. Oklahoma State University Extension notes that some aquatic vegetation benefits a fishing pond, with about 20 percent plant coverage considered ideal.
Then September begins to bring a change.
Cooler nights gradually lower water temperatures, and fish that have been sluggish through the hottest part of summer often become more active. Bass start feeding more aggressively as conditions improve, and baitfish movement can make shallow areas productive again.
That doesn’t mean every cool morning will fill a stringer. Farm ponds are small ecosystems, and each one responds differently depending on depth, water clarity, vegetation, fish populations and rainfall.
Watch the pond itself during this transition. Fall can bring pond turnover, when the layers of water that formed during warm weather mix. If the deeper water holds little oxygen, that mixing can temporarily lower oxygen throughout the pond. Fish gulping at the surface, especially early in the morning, can signal an oxygen problem.
For most anglers, though, September has less to do with worrying over every change in the water and more to do with recognizing that the pond is entering a new season.
Fish earlier and later in the day while temperatures stay high. Work around vegetation and structure. As cooler weather settles in, try shallower water again and watch for signs of baitfish.
That farm pond that seemed nearly lifeless on an August afternoon may have plenty going on beneath the surface. Sometimes all it takes is a cooler morning, a little patience and one more cast.
Outdoors
What Happens to Wildlife in a Drought
By OKFR Staff
Drought is easy to see in a pasture. Grass turns brown, ponds shrink, creeks stop running and crops struggle. It’s harder to see what those same conditions are doing to wildlife.
For deer, turkey, quail and countless smaller species, drought changes much more than how much water is available. It changes where food grows, how much cover the land offers and, in some cases, how successfully animals reproduce.
White-tailed deer are a good example. Deer can go surprisingly long stretches without drinking from a pond or creek if they have succulent plants that supply moisture. During drought, those plants become scarcer and lower in quality. Deer may start eating plants they would normally pass over, and dry years can affect body condition and antler growth. Research in Oklahoma has also shown that fawn production tends to rise and fall with rainfall, so prolonged drought matters when you look at the health of a deer herd over time.
Turkeys face many of the same challenges. Adult birds can get much of the moisture they need from fruits and succulent plants, but drought cuts into those foods. It also affects insects, which young poults depend on. Good brood habitat includes broadleaf plants and plenty of insects, and when dry weather reduces both, young birds have less to eat at a critical stage of life.
Quail may surprise people. Northern bobwhites don’t necessarily need to visit standing water every day. They can get moisture from green vegetation, insects, fruit and even dew. Drought still makes their lives harder by reducing those foods and changing the plant structure they depend on for nesting, feeding and escape cover.
That is why putting out more water isn’t always the whole answer. Oklahoma State University research found that supplemental water can concentrate quail around water sources but hasn’t been shown to increase quail numbers, even in drought years. The bigger issue is habitat. Wildlife need food, cover and space along with access to moisture.
For landowners, some of the best drought help may already be growing on the property.
Avoiding overgrazing leaves more grass and broadleaf plants for wildlife. Leaving brushy areas, native vegetation and field edges undisturbed can provide valuable cover when the surrounding landscape is dry and sparse. Trees and shrubs along creeks and drainages give animals shade, cover and travel corridors.
Water sources still matter, particularly where drought has dried up ponds and streams. If wildlife can reach livestock tanks, ponds or other artificial water sources, make sure animals can get in and out safely. Steep-sided tanks can trap birds and small mammals, so add escape ramps or other exits.
Landowners may also be tempted to start supplemental feeding right away. Feeders and food plots can attract wildlife, but they don’t replace healthy habitat. Food plots may struggle in the same drought that is hurting native vegetation, and concentrating animals around feeders can raise other concerns, including disease transmission and heavy pressure on nearby plants.
Drought also changes wildlife behavior. As resources run short, animals may travel farther or gather around the few places left with food, water and cover. That can make wildlife look more abundant in some spots even while the overall population is under stress.
The effects don’t always end with the first good rain, either. Vegetation takes time to recover, ponds may need repeated rains to refill, and a hard spring or summer’s reproductive losses can’t be reversed overnight.
Oklahoma wildlife are used to changing weather. Dry years are part of the landscape, just like wet years, and most native species have ways of adapting. The longer and more severe a drought becomes, though, the harder those adaptations have to work.
If you want to help wildlife through a dry spell, focus less on replacing everything nature isn’t providing and more on protecting what remains. Conserving cover, avoiding unnecessary disturbance, managing grazing carefully and keeping water sources safe can give wildlife a better chance until the rain returns.
Outdoors
Why Fall Is the Best Time to Plant Trees
By Ann Asher
Every spring, garden centers fill with shoppers loading young trees onto trailers and into pickup trucks. It makes sense. The weather is warming, everything is turning green and planting season feels like it has arrived.
But ask an arborist or Extension horticulturist when they would rather plant a tree, and you’ll probably hear a different answer: fall.
It may seem backward at first, but in North Texas and central Oklahoma, experts widely consider the months between late September and early winter the best time of year to plant most trees. The leaves may be getting ready for winter, but the roots keep growing below the surface long after top growth has slowed. That lets a young tree establish itself before the next hot summer arrives.
That’s a tremendous advantage in a region where summer temperatures routinely climb into the 90s and beyond.
A newly planted tree has one job: grow roots. A tree planted in spring has only a short window before it must also support a flush of new leaves while enduring months of heat, drying winds and occasional drought. That combination can put significant stress on a young tree before its roots have had time to spread into the surrounding soil.
A fall-planted tree has a much easier assignment.
As air temperatures cool, the soil often stays warm for weeks. Those conditions encourage continued root growth without asking the tree to produce new leaves or long shoots. Instead of splitting its energy between growth above and below ground, the tree can put most of its effort into building a healthy root system. By spring, it has settled into its new home and is better prepared for warm weather. Research and recommendations from both Oklahoma State University Extension and Texas A&M AgriLife Extension support fall as an ideal planting season for many landscape trees in this region.
You still can’t dig a hole and walk away.
Choosing the right location is just as important as choosing the right tree. Consider the mature height and spread, not the size of the sapling you’re bringing home. A small oak, pecan or cedar elm may fit comfortably today, but in a few decades it could tower over a house or tangle with utility lines if you plant it without a plan. Likewise, trees that prefer moist soils may struggle in dry, exposed spots, while drought-tolerant native species often need far less maintenance once established.
When it’s time to plant, dig a hole two to three times wider than the root ball, but no deeper.
One of the most common mistakes homeowners make is planting too deep. The point where the trunk begins to flare into the roots should sit at or just above the finished soil level. Burying that flare can lead to poor growth and long-term health problems.
Backfill with the native soil that came out of the hole instead of rich potting soil or heavy amendments. It may seem like a kindness, but surrounding the roots with very different soil can discourage them from growing outward into the ground where they’ll ultimately need to survive.
Water thoroughly after planting, then keep watering deeply as needed during dry periods through fall and winter. Even dormant trees need moisture while their roots continue to develop. A layer of mulch two to four inches deep around the base helps conserve soil moisture, regulate temperature and reduce weed competition. Keep the mulch pulled back several inches from the trunk. The familiar “mulch volcano” piled against the bark may look tidy, but it can trap moisture, encourage decay and attract insects.
If you’re unsure what to plant, consider species well adapted to the Southern Plains. Bur oak, chinkapin oak, cedar elm, Shumard oak, bald cypress, Mexican plum, eastern redbud and native pecan are all excellent choices in many parts of North Texas and central Oklahoma, depending on soil conditions and available space. Native trees generally handle local weather extremes better and provide valuable habitat for birds, butterflies and other wildlife.
Planting a tree is one of the few gardening projects that benefits future generations. Long after this year’s tomatoes are forgotten and next season’s flowers have come and gone, that tree will still be growing. It may shade a porch, shelter wildlife, lower summer cooling costs or become the backdrop for family photographs that haven’t been taken yet.
Spring may get most of the attention, but fall gives young trees their best chance to thrive. Give them a strong start now, and they’ll spend the years ahead returning the favor.
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