Setting up experiments in the field is some of the most challenging, but also fun and rewarding work. Cleaning up experiments in the field is… well…just as challenging but a lot less fun! As I wrapped up my Ph.D. in the fall, I had to start to clean up the mess that I had made over the years. In this old field site, I was trying to understand what predicted abundance of introduced plant species and thus, I installed 10 inch deep aluminum cylinders (100 of them!) to create micro-communities, introduced some species, then installed cages (made of hardware cloth) to keep deer and voles away. It took several months to set up and it was a beautiful sight! But after many years of sampling and a few years of negligence, the beauty quickly turned to chaos. And then, it was time to clean it up. This clean up included three main tasks, all of which seemed fairly easy at the time.
Task #1: Mark 50 cylinders for future re-location
We chose to start with this task because we thought it would be the easiest. All we had to do was randomly select 50 of the 100 cylinders to mark with a wooden stake. Once the plots were selected, we drove a wooden stake on the north corner of the plot. The first plot, in the low-lying corner of the field where the soil is very loamy, was very easy to drive the stake into. And from there, things went downhill very quickly. I remembered 5 years earlier, when I had installed those aluminum cylinders, that the field was quite rocky and difficult to dig in. And that certainly had not changed! 8 hours later, after many cursed rocks, splinters in my fingers and hot, stinging biceps, it was done. The next day we would tackle my next task, which had to be easier than this one.
Task #2: Remove the other 50 cylinders
Installing these cylinders in 2013 SUCKED. It was a back-breaking, miserable task. They were installed for almost 5 years and until I finished using them, we never considered what it would take to remove them. It was late fall and the ground was very wet, so we figured this would be the prime time to move them. We figured they would just slide right on out…like a knife in soft butter! But once again, what you think, is not always realistic. Those cylinders would not budge. I had a field assistant with me, and we had a pair of pliers in each hand. We grasped the cylinder with both hands and heaved upwards…and nothing. Not even a slight movement. Even worse, the cylinders were made of aluminum flashing and if you pulled too hard, or on an angle, you would tear a piece of it off, your arms would fling up in the air and you would quickly lose your footing and land smack right on your bum! Eventually, after bruised tailbones and callused hands, we developed a system of careful jiggling, wiggling and coordinated heaving that removed those 50 cylinders. But I will admit, I cried several times that day! That day was terrible…at least the final task of the clean up would be easy!
Task #3: Tidy up fences
Like I said before, we used hardware cloth fencing throughout the project to keep herbivores and granivores out of the cylinder plots. However, as the experiment ended and the final sampling occurred, some cages did not end up back on the plots, and in the subsequent years, many blew off and were now littered all over the field site. But all we had to do was pick them up and store them in the field house. Simple, right? Well, it wasn’t so simple. The difficult part was that, like I said, they had been like that for a few years. Thick tufts of grass were growing up and intertwined between the quarter inch holes in the hardware cloth. If you pulled on the cage to pick it up, it wouldn’t budge. It was even worse than the cylinders. It took us over 30 minutes to coax one of them out from the jungle of grass, and it was at that point, we accepted that this was a task that would be easier in the spring, once the vegetation had died back a bit more. I am not totally convinced that this is true, but it does leave me with an excuse to do more field work in one of the best field work seasons!