Over the growing season of last year, 2020, I fell in love with spiders. It began with the little hunting spiders that are among the first visible animals to awaken on the orchard come spring. Soon, I began observing orb weavers and sheet web builders at night on my orchard, using an ultraviolet light to discover their webs. It became a natural part of my near-nightly routine to check in with different spiders while I walked to and from the trapeze at the end of the orchard. Most of the spiders I met let me watch them being spiders. Some of them I visited for only a single evening, while others I visited for longer periods of time.
There were three spider individuals that I was able to watch for between six and eight weeks living continuously in one location. One was a diadem spider that built an unusually complex web underneath our family’s mail-box. Her web was all the more interesting because she lost a leg early on and had a unique, jaunty way of weaving compared to other members of her species. Another was a cat-faced spider that built and maintained its web on one of our tractors, between the seat and the forks. This was especially interesting since it was during harvest season, when our tractor is running and lifting bins everyday. The web would lift, lower, and stretch along with the forks. The final spider was the biggest and most dominant female cat-faced spider I have seen so far. A voracious legend in the spider realm, she entertained multiple male suitors over the course of several evenings in her relatively loosely-woven web, which was set up in a genius location (from a spider’s perspective) in a wind-protected corner of our house’s patio. Based on the size she was by midsummer, I suspect she may have lived a year longer than most cat-faced spiders do. Most other spiders were observed for a few days up to a few weeks. Webs built in the apple trees tended to be a bit more ephemeral than those anchored on trellis posts, wires, and other human-made structures. What amazes me most from what I observed last year is how distinct spider individuals are in their movement, colouration, webs, and behaviour, even relative to other individuals of the same species.
I have come to realize that spiders are incredibly important beings on my orchard. They are generalist predators, so one of their functions in the ecosystem of our orchard is to prevent spikes in the population of most insect species. In turn, anything we can do on the farm to keep spiders healthy, we should do.
I am so excited that spider season is coming soon…