Have you noticed fewer butterflies in your garden in 2020? For me, the bees have been plentiful, including the native ones, but butterflies of any sort? Remarkably few.
It’s probably not just in my garden, or just in Toronto. A garden friend in Washington, D.C., commented on the same thing. And another Facebook commenter noted that people in the Northeast were also experiencing butterfly no-shows.
Was it our cold snap in May? This extended heatwave and drought? I’m sure it’s a complex formula.
World Wildlife Fund, for example, this spring posted about the 53% decrease in area occupied by monarch butterflies in their Mexican wintering site during 2019/20. Cold spring temperatures were amongst the many reasons why. And there is this troubling report from the Center for Biological Diversity that graphs the downward trend in monarch populations since 1994.
How are things where you are?