3 edition of Application of predictive model to forecast Douglas-fir tussock moth defoliation found in the catalog.
Application of predictive model to forecast Douglas-fir tussock moth defoliation
Wayne E. Bousfield
|Statement||by Wayne E. Bousfield and R. Ladd Livingston.|
|Series||Forest pest management, Forest pest management report -- 86-10., Report (United States. Forest Service. Northern Region) -- no. 86-10.|
|Contributions||Livingston, R. Ladd., United States. Forest Service. Northern Region.|
|The Physical Object|
|Pagination||8 p. ;|
The woodwasp Sirex noctilio is a major pest of pine plantations worldwide. Economically significant damage is however limited to outbreak populations. To understand what determines outbreaks dynamics in this species, we developed an individual based model for a wasp population developing within a pine plantation. We show that outbreaks may be the result of the insect's life history. LIEBHOLD, ROSSI & KEMP of defoliation caused by the Douglas fir tussock moth in British Columbia from and overlaid these images to obtain a map of defoliation frequency. This outbreak-frequency map was then overlaid with forest type and biogeoclimatic maps to determine how forest type and climate were related to outbreak frequency.
Daily Forecast Southwest Area - Intelligence Section. daily life Developing Predictive Models Wildland Resource Valuation - Selected Projects: Energy Center of Wisconsin Douglas-fir Tussock Moths (Type a title for your page here) Douglasia Occasional . For over sixty years, understanding the causes of multiannual cycles in animal populations has been a central issue in ecology. This book brings together ten of the leaders in this field to examine the major hypotheses and recent evidence in the field, and to establish that trophic interactions are an important factor in driving at least some of the major regular oscillations in animal.
Douglas fir use book. (Seattle, Wash.: West Coast Lumbermen's Association, ), by West Coast Lumbermen's Association (page images at HathiTrust; US access only) Die Douglas-Fichte und einige andere Nadelhölzer namentlich aus dem nordwest- lichen Amerika in . R.J. Clem, in Encyclopedia of Virology (Third Edition), The IAPs: Apoptosis Inhibitors Found in Both Viral and Cellular Genomes. Shortly after the discovery of p35, a genetic complementation assay was used in an attempt to identify p35 homologs in two other baculoviruses, orgyia pseudotsugata M nucleopolyhedrovirus (OpMNPV) and cydia pomonella granulovirus (CpGV).
Competition for negotiated government procurement can and should be improved
Northampton diocesan directory.
Western Wall (Holy Places)
Textbook of pharmaceutical compounding and dispensing
2000 California Tax Handbook (Annual)
Research Institute for Higher Education, Hiroshima University.
Inscribed Bamboo and Wooden Strips and Tablets
Flute concerto of Sidney Lanier.
Keys to contentment
Then there was one
Sex, censorship, and pornography
Application of predictive model to forecast Douglas-fir tussock moth defoliation Public DepositedAuthor: Wayne E. Bousfield, R. Ladd Livingston. During the tussock moth outbreak in the Northwest, a model to predict Douglas-fir tussock moth damage for northern Idaho was developed (Stoszek et al.
This predictive defoliation model was derived from inventory data collected from 70 stands that covered several successional stages and site conditions that represent the. An extract from Predictive Model to Forecast Douglas-Fir Tusock Moth Defoliation, USDA - FS-NR, Forest Pest Management, Report (), JUN8 pages The Douglas-fir tussock moth is a serious threat to western forests.
In the past this defoliator has caused extensive damage to Douglas-fir and grand fir forests. APPLICATION OF PREDICTIVE MODEL TO FORECAST DOUGLAS-FIR TUSSOCK MOTH DEFOLIATION by Wayne E. Bousfield 1 and R. Ladd Livingston June The Douglas-fir tussock moth 3 is a serious threat to western forests.
In the past this defoliator has caused extensive damage to Douglas-fir and grand fir forests. Download PDF: Sorry, we are unable to provide the full text but you may find it at the following location(s): (external link).
Relationships between intensity of defoliation caused by Douglas-fir tussock moth, Orgyia pseudotsugata McDunnough, and descriptive characteristics of forest sites and stands in. experiments using the model examined the effects of Douglas-fir tussock moth, Orgyia pseudo- tsugata McDunnough, defoliation on stand dynamics during the first 40 years of stand develop- ment.
An outbreak of the Douglas-fir tussock moth, Orgyia pseudotsugata McDunnough, occurred in the South Platte River drainage on the Pike-San Isabel National Forest in the Colorado Front Range attacking Douglas-fir, Pseudotsuga menziesii (Mirb.) Franco.
Stocking levels, species composition, and tree size in heavily and lightly defoliated stands were similar. Douglas-fir tussock moth defoliation. A user’s guide to the combined stand prognosis and Douglas-fir tussock moth outbreak model, U.S.
Forest Service General Technical Report INT, 49 pp. Google Scholar Morris, R. F.,The development of sampling techniques for forest insect defoliators, with particular reference to the spruce budworm, Can. Zool. – IPM systems for all three of the major forest defoliators now rely (Douglas-fir tussock moth and spruce budworm) or will rely (gypsy moth) on some form of a pheromone-trap- based monitoring system.
Douglas-fir tussock moth Outbreaks of the Douglas-fir tussock moth can be severe, and populations can increase by several orders of magnitude over a.
Abstract. Gap models are perhaps the most widely used class of individual-based tree models used in ecology and climate change research. However, most gap model emphasize, in terms of process detail, computer code, and validation effort, tree growth with little.
Defoliation by spruce budworm (Choristoneura fumiferana Clem.) on balsam fir (Abies balsamea (L.) Mill.) is more severe in fir than in mixed fir-hardwood stands.
Previous studies assumed that defoliation in fir-hardwood stands was reduced in proportion to percent hardwood regardless of outbreak severity. We tested the influence of stand composition on defoliation during the first 5 years of a.
Seven outbreaks of Douglas-fir tussock moth, Orgyia pseudotsugata McDunnough, have recurred in the interior of British Columbia since But little is known about their impacts on renewable resources in affected stands.
A study was undertaken to examine effects of the most recent outbreak on understory vegetation and tree productivity near Kamloops, British Columbia. Dry weight forage. Next, all predictors were fit in full models and a backwards elimination procedure was used to develop the best predictive models for landscape dynamics in defoliation and mortality.
During backwards elimination, analyses were limited to predictors that, when fit individually as described above, had a p‐value less than Outbreaks of Lambdina fiscellaria lugubrosa in British Columbia have always been preceded by a rapid population growth. Sampling methods and population prediction models are needed to provide forest managers with the capability of monitoring and predicting populations of the insect.
I sampled eggs, larvae, pupae and adults of Lambdina fiscellaria lugubrosa at various locations in the province. th0 Douglas fir tussock moth in the Pacific fior4hwe/t A SEMINAR SEMINAR CHAIRMAN Henry J.
Korp Deputy Assistant Administrator for Pesticide Programs U.S. Environmental Protection Agency PROGRAM COMMITTEE Roger Pierpont, Entomologist Ecological Effects Branch, Criteria and Evaluation Division Office of Pesticide Programs, U.S.
Environmental Protection Agency Washington. Impact of mating disruption pheromone treatments to control douglas-fir tussock moth, Orgyia pseudotsugata (McDunnough) (Lepidoptera: Predictive capabilities of a pheromone-based monitoring system for western hemlock looper Mating disruption of Douglas-fir tussock moth one and two years after the application of pheromone.
The system models for the mountain pine beetle (36) and the Douglas-fir tussock moth (31), and one developed by Bare & Phipps (10) for the Douglas-fir beetle in the Snohomish Watershed of Washington appear capable of evaluating ongoing practices or simulating alternative treatment strategies or management activities on a realistic basis.
The Douglas-fir tussock moth management system. () AH Rating the risk of tussock moth defoliation using aerial photographs. () AH U.S. inspected meat and poultry packing plants: a guide to construction and layout. () AH Particular outcomes of research will aid forest managers in predicting risks of insect outbreaks (e.g., Douglas-fir tussock moth early warning system); applying semiochemical control techniques for various pine, spruce, and fir beetle species; and designing prescribed fire and other fuel reduction programs in a manner to address potential.
An illustration of a computer application window Wayback Machine. An illustration of an open book. Books.
An illustration of two cells of a film strip. Video. An illustration of an audio speaker. Audio. An illustration of a " floppy disk. Software. An illustration of two photographs.The first extension to Prognosis came as a result of a major research effort regarding the Douglas-fir tussock moth, Through the effort of the Pacific Northwest Station and Oregon State University scientists, a model was builtindependent from Prog- nosisthat simulated the effects on single trees attacked by the Douglas- fir tussock moth.Application of Predictive Model to Forecast Douglas-Fir Tussok Moth Defoliation U.S.
Department of Agriculture, Forest Service, Northern Region, Forest Pest Management 8June Report HP 41 B Forestry English Burgan; Susott HP Replaces TI for Fire Calculations in the Field Fire Management Notes 3 No.