Jim, I just wish Mother Nature would spread that rain out. It will interesting to see how the water level holds this summer. Yes, those were fire ants.
The main reason for burning the hardwood bottoms is, indeed, to reduce the amount of fuel in case of a wild fire. But this year the conditions were not conducive for burning the bottoms because of the moisture content of the oak leaves and, in a large area of the bottoms, there was standing water.
Prescribed burning of the longleaf pines not only reduces the fuel but, also helps control or kill woody brush. In our locale, native gall berry, wax myrtle, oak, and blackberry would soon take over the longleaf pine fields, at least until the pines provided a dense enough canopy to choke out some of the undesirables. The burn does not completely kill the blackberries but it sure slows them down and if the other woody brush is to large they will survive also. A burn should be scheduled every 3-4 years to not only kill new woody brush, but also, to ensure that there is not to much fuel (dead grass and pine needles) on the ground. To much fuel will create to much heat for the pines.
This was the second burn since my daughter bought the property. The previous owner went too long without a burn so a lot of the woody growth survived the first burn. My SIL and I spent a couple of days spraying the woody growth with Remedy. Last Thursday I did notice that there was a section of the west field that had a lot of wax myrtle so we will have to do some more spraying. The next burn should be even better.
It was interesting to learn about the longleaf pine/wiregrass ecosystem which once covered 90 million acres here in the south from Virginia to Texas. The longleaf pines and wiregrass evolved together with fire. Wiregrass will not propagate unless it's burned during its growing season. There is some wiregrass on the property but it will take a lot of effort to get it established through out the pines. I transplanted some clumps to my yard just to see if I could get it to go to seed and then use the seed on my daughter's property.
I have rambled enough. I'll attached a couple of my favorite pictures taken in the hardwood bottoms. The sand was deposited over many years of high water events. The habitat within the bottoms varies so it all doesn't look like this.
CRBR, you are welcome.