Outer bark variation

Joy Perry joyperry at UWC.EDU
Tue Oct 21 13:50:18 EST 1997

Kathy Schmid asked if there might be selective advantages related to smooth
vs. rough bark. My understanding is that many tropical trees have smooth or
sloughing bark supposedly because this prevents epiphytes from gaining a
foothold and reduces competition. I can tell you from a recent trip to
Belize that this appears to be the case. Many wet lowland forest trees do
indeed have very smooth bark, and the bark of others peels off, and these
trees do appear to have fewer lichens, mosses, ferns, and other epiphytes
on them.

Joy B. Perry
Dept. of Biological Sciences
University of Wisconsin Fox Valley
P.O. Box 8002
Menasha, WI  54952-8002
office: 920-832-2653
FAX:  920-832-2674
joyperry at uwc.edu

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