What's All the Buzz About
What’s that you said? I’m sorry, could you repeat that? Would you speak up, please? I can’t hear a thing you just said!
Sorry about that. It’s just hard to hear around here lately with all the cicadas. Many of you have probably heard—or maybe you’ve been infested as well—but the Midwest is home to a very populous brood of 17-year cicadas, and 2007 was their year.
For 17 years, these cicadas live underground as nymphs, quietly sucking the sap from tree roots. Most of us don’t even know they’re down there all that time. But boy, do we know now. We’re told that, in some areas, there are 1–1.5 million cicadas per acre (400,000–600,000 per hectare, or 250–370 cicadas per square meter).
Around the beginning of June, the nymphs began crawling out of the ground and making their way up tree trunks, where they attached themselves, shed their skins and transformed into winged adults. And then the chorus began.
In some areas, the noise is almost deafening. It seems more or less constant, but if you stand and listen, you can hear the cicadas react to each other en masse, their chirps rising in great waves of crescendos.
And then there are the dive-bombers. Cicadas aren’t particularly good navigators, and they’ll latch onto pretty much anything they run into, even—say—an editor out for an evening stroll.