Download or read book A Comparison of Spruce Budworm Population Estimates Between Southern Idaho and Eastern Oregon written by Walter E. Cole and published by . This book was released on 1973 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Comparison of Spruce Budworm Population Estimates Between Southern Idaho and Eastern Oregon written by Walter E. Cole and published by . This book was released on 1973 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book USDA Forest Service Research Note INT written by and published by . This book was released on 1971 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spruce Budworms Bibliography written by University of Maine at Orono. School of Forest Resources and published by . This book was released on 1979 with total page 708 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spruce Budworms Bibliography written by and published by . This book was released on 1981 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Western Spruce Budworm Egg Mass Dimensions written by Richard Irvin Washburn and published by . This book was released on 1973 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forest Insect Survey and Control written by Julius Alexander Rudinsky and published by Oregon State University Book Stores, Incorporated. This book was released on 1979 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1971 with total page 1388 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications Cumulative Index written by United States. Superintendent of Documents and published by . This book was released on 1976 with total page 1408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book General Technical Report RMRS written by and published by . This book was released on 1998 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Repeatability of Riparian Vegetation Sampling Methods written by and published by . This book was released on 2004 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tests were conducted to evaluate variability among observers for riparian vegetation data collection methods and data reduction techniques. The methods are used as part of a largescale monitoring program designed to detect changes in riparian resource conditions on Federal lands. Methods were evaluated using agreement matrices, the Bray-Curtis dissimilarity metric, the coefficient of variation, the percentage of total variability attributed to observers, and estimates of the number of sites needed to detect change. Community type (CT) cover data differed substantially among the six to seven observers that sampled the same sites. The mean within-site similarity in the vegetation data ranged from 40 to 65 percent. Converting CT data to ratings (bank stability, successional, and wetlands ratings) resulted in better repeatability, with coefficients of variation ranging from 6 to 13 percent and a percentage of variability attributed to observers of 16 to 44 percent. Sample size estimates for the ratings generated from CT cover data ranged from 56 to 224 sites to detect a change of 10 percent between two populations. The woody species regeneration method was imprecise. The effective ground cover method was quite precise with a coefficient of variation of two, but had so little variability among sites that statistically significant change in this attribute would not be expected. In general, reducing the CTs to ratings increased precision because of the elimination of differences among observers that were not important from the perspective of the rating. Studies that seek to detect change at a single site would need to take into account the observer variability described here. Studies that seek to detect differences between populations of sites could detect relatively large changes with these methods and ratings. Small differences among populations would be difficult to detect with a high degree of confidence, unless hundreds of sites were sampled.
Download or read book Forest Insect and Disease Conditions in the United States written by and published by . This book was released on 1978 with total page 550 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recent Advances in Spruce Budworms Research written by C. J. Sanders and published by Ottawa, Ont. : Canadian Forestry Service. This book was released on 1985 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1999 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Bulletin written by and published by . This book was released on 1987 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agrindex written by and published by . This book was released on 1995 with total page 896 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Agriculture with Subject Index written by and published by . This book was released on 1987 with total page 852 pages. Available in PDF, EPUB and Kindle. Book excerpt:
