Safranyik, L. 1978a. Effects of climate and weather on mountain pine beetle populations. Pages 77-84 in A, A. Berryman, G. D. Amman, R. W. Stark, and D. L. Kibbee (eds.), Theory and practice of mountain pine beetle management in lodgepole pine forests. Symposium, 25-27 April 1978, Pullman, Washington. University of Idaho, College of Forest Resources. 220 p.