I picked up the Class of ’97 leg of the Trail Around Middlebury by the organic garden and headed north. A fresh dusting of snow from the night before had left a thin layer of flakes over a pavement of ice compacted by Middlebury’s population of hardy trail runners. It was late afternoon, but judging by the tracks in the snow, only two people and a canine had ventured out this way so far. One of these people had the foresight to bring crampons, a decision I soon envied as I felt my boots begin to slide.
I soon hit the first taste of forest this leg of the TAM has to offer: a stand of trees which my four weeks of tree identification practice quickly informed me is composed of eastern hemlock (Tsuga canadensis). I’ve walked through this grove many times in my three years here, but this time I had a new, much appreciated perspective on the ecology of this patch of forest. Unfortunately, given our last class period, this perspective was a rather morbid and hopeless one. A series of presentations and lectures that day had stuck in my mind as not-so-gentle reminders of the serious threats that forests face from diseases, insects, and climate change. Looking at this stand of hemlocks I couldn’t help but wonder how much longer it will stand before Hemlock woolly adelgid (Adelges tsugae) snuffs it out.
I continued on the trail and crossed Weybridge Street where I quickly wished for the stability only crampons can bring to boots trekking on an icy hill. Walking along the creek, I continued to reflect on how this place might change. How quickly will warming global temperatures alter the forest composition of this small corner of Vermont? Will some of these tree species disappear entirely as more southerly trees migrate north? I wondered what it might look like to return there and find a completely different forest landscape.
From afar, I spotted something tied to a tree just off the trail ahead of me. Approaching it, I found a timely, written reminder of the threat that ash trees face from emerald ash borer. This particular threat is one that Tim Parsons, Middlebury’s landscape horticulturalist, informed us will kill our campus’s entire population of ash trees in the next five years. It seemed a fitting marker for a break, so I sat down on one of serval felled logs in the area and observed the forest around me. Through the canopy of white pine (Pinus strobus) needles, I could see wispy clouds rush by. Looking behind me, I could see trees bathed in the golden rays of the late afternoon sun.
And next to me, I could see a dead tree pockmarked with holes left by pileated woodpeckers (Dryocopus pileatus). It was here that I found some solace: at least those lovers of deadwood will find some enjoyment as pestilence reshapes America’s forests.