The biggest threat the highways pose is destroying their habitat, and then alongside palm trees are planted instead of milkweed
The loss of 99% of the population is an alarming statistic CityDad. I have my doubts that habitat is the sole cause of this but am also confident that automobiles are not a significant factor either. To me, Monarchs are like a canary in the coal mine and are warning of more of what we are likely to see. The loss of song birds are similarly alarming (though there seems to be an abundance of water turkey
). Let's hope we figure this out before its too late. Habitat improvement is a good step in the right direction but I do think factors we do not yet understand are also at play.
