For the Life on the Japanese Knotweed study. This harvestman has a *huge* legspan (10 cm), because it has an extremely elongated second pair of legs that it was using as feelers. Interesting point: saw this species repeatedly (at least 3x) on Japanese Knotweed, but not elsewhere; saw another harvestman (the kind with the big orange body) on other plants, but not on the knotweed.
Never thought I'd be glad to see Japanese Knotweed, but the other plants abundant on Bull's Island are Stinging Nettle and Poison Ivy -- and I don't care if they are native, they're evil! Although there's Pale Jewelweed too.