Moth Walls: Living Placards for Biodiversity

By Joe Bowden, Research Scientist, Natural Resources Canada, Canadian Forest Service, Corner Brook, NL Posted October 26, 2018 My good friend and colleague Marianne Graversen in Aarhus, Denmark first introduced me to the concept of the moth wall while I was a postdoc (2013-2015) at Aarhus University and Natural History Museum (where she works). I remember heading out to one of their National Parks, Mols Bjerge, and seeing this white wall on a forest edge and thinking, “This is a fantastic idea!” During the day, it’s just a white board with a light fixed to it. At night, it is quite a spectacle when the light comes on. Moths (among other insects and the bats that eat them) start bombing around and eventually land on it. I also thought, “We need this kind of thing in Canada,” and was determined to get such a project up-and-running as soon as I could get the…

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