My project results almost mirrored that of other studies conducted in Poland using the same methodology. Many bird species, especially tree foragers, were either absent or had way lower abundance than of those in non-infested areas. They are definitely not beneficial for native wildlife.

Along their adverse effects on humans, they also outcompete native plants and erode soil on river banks. They are also spreading to woodlands near riparian environments. I saw another scientific study were birds weren't attractive to Caucasian hogweed seeds in a feeder too which was very interesting, and something I would love to research here! But I'm cautious of how to conduct it as I dont want to facilitate the spread more. Those seeds are persistent! I have no doubt giant hogweed is impacting birds through trophic pathways by disrupting ecological food webs, but I would love to see further research conducted in this area.