26 
Psyche 
[March 
overcrowding is minimized. Aerial dispersal would also allow suc- 
cessional species such as A. trifasciata and A. aurantia to colonize 
newly opened, ephemeral habitats. 
Acknowledgments 
I gratefully acknowledge the assistance of James Tanner, Gordon 
Burghardt, Charles Pless and David Etnier who ably served on my 
doctoral committee. I am especially grateful to Susan Riechert, 
my committee chairperson. I acknowledge the financial support 
of the National Science Foundation, Grant For Doctoral Disserta- 
tion Improvement (BMS 74-17602) and the Graduate Program in 
Ecology of the University of Tennessee. 
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