Fares, Y., P. J. H. Sharpe, and C. E. Magnuson. 1980b. Pheromone dispersion in a forested ecosystem. Pages 75-93 in F. M. Stephen, J. L. Searcy, and G. D. Hertel (eds.), Modeling southern pine beetle populations. United States Department of Agriculture, Forest Service, Technical Bulletin 1630. 174 p.