You are browsing the archive for 1 August 2012 - Mountain Beltway.

1 August 2012

Cottonwood trees being consumed by caterpillars

In Waterton Lakes National Park, Alberta, my students and I camped under the shade of cottonwood trees… But some of the cottonwoods’ branches were looking a little thin… Caterpillars were munching on their leaves. And some trees had been completely denuded by the voracious little larvae: All three photos are taken on roughly the same scale (note the Moon as a reference point in each!).


3 Comments/Trackbacks >>