94 William C. McComb and Robert L. Rumsey 



over what would occur in an undisturbed forest. Ninety kg/ ha of 

 M-3864 was not a desirable treatment since none of the species used 

 plots with this rate over one of the other treatments. If ten plots per 

 1,000 ha were treated each year, habitat would be provided on a sus- 

 tained basis while allowing 100 years for recovery on each site. 

 Herbicide-treated plots and clearcuts placed on both north-facing and 

 south-facing slopes would increase the advantages to breeding migrants 

 and wintering residents or breeding Picids, respectively. 



ACKNOWLEDGMENTS.— We wish to thank R. L. Anderson, 

 D. M. Allen, M. J. Immel, and C. Rowell for advice on statistical ana- 

 lyses; Dow Chemical Corp. for supplying herbicides; J. B. Davis and the 

 Robinson Forest staff for assistance with field work; and R. N. Conner, 

 P. D. Doerr, B. A. Thielges, P. N. Allaire, R. E. Noble, R. B. Hamilton, 

 R. D. Shipman, R. N. Muller, and C. J. Liu for reviewing an early draft 

 of the manuscript. The investigation reported in this manuscript (No. 

 82-8-40) is in connection with Kentucky Agricultural Experiment Sta- 

 tion Project No. 620 and is published with the approval of the Director. 



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