Treesearch - scientific articles written or published by the U.S. Forest Service

Show/Hide Search Form

Keywords (All fields) or Title:

Last Name of Author:

Date Range:

FS Series:

Subscribe to R&D Publications recently added to Treesearch - RSS feed More RSS options

Displaying 1 - 20 of 36

Pages

Records Per Page:

Sort By:

A simulation of probabilistic wildfire risk components for the continental United States

This simulation research was conducted in order to develop a large-fire risk assessment system for the contiguous land area of the United States. The modeling system was applied to each of 134 Fire Planning Units (FPUs) to estimate burn probabilities and fire size distributions. To obtain stable estimates of these quantities, fire ignition and growth was simulated for...

https://www.fs.usda.gov/treesearch/search?keywords=%22Growth%22&%3Bf%5B0%5D=author_facet%3A%22Schaberg%2C%20Paul%22&f%5B0%5D=author_facet%3A%22Bailey%2C%20Amey%22&f%5B1%5D=author_facet%3A%22Haight%2C%20Robert%20G.%22&f%5B2%5D=author_facet%3A%22Riley%2C%20Karin%22&f%5B3%5D=author_facet%3A%22Hayden%2C%20Katherine%22&f%5B4%5D=author_facet%3A%22Chamberlain%2C%20James%22&f%5B5%5D=author_facet%3A%22Skinner%2C%20Carl%22&f%5B6%5D=author_facet%3A%22Vavra%2C%20Marty%22

Author(s):

Mark A. Finney; Charles W. McHugh; Isaac C. Grenfell; Karin L. Riley; Karen C. Short

Year:

2011

Keywords:

wildfire risk, simulation research, LANDFIRE

Source:

Stochastic Environmental Research and Risk Assessment. 25: 973-1000.

Designing Species Translocation Strategies When Populaton Growth and Future Funding Are Uncertain

When translocating individuals to found new populations, managers must allocate limited funds among release and monitoring activities that differ in method, cost, and probable result. In addition, managers are increasingly expected to justify the funding decisions they have made. Within the framework of decision analysis, we used robust optimization to formulate and...

Author(s):

Robert G. Haight; Katherine Ralls; Anthony M. Starfield

Year:

2000

Keywords:

Translocation, population growth, optiminzation

Source:

Conservation Biology. Vol. 14 no. 5.:p. 1298-1307. (2000)

Ponderosa pine needle length: an early indicator of release treatment effectiveness

Growth responses of ponderosa pine seedlings range from fast to slow after release and often demonstrate the effectiveness of the prescribed treatments. Although several morphological parameters have have identified as being sensitive to competition, no link to future growth and treatment effectiveness has been made. Shrubs and grasses in four 1- to 3-year-old...

Author(s):

Philip M. McDonald; Carl N. Skinner; Gary O. Fiddler

Year:

1992

Keywords:

vegetation management, silviculture, regeneration, release treatment

Source:

Canadian Journal of Forest Research 22: 761-764

Continental-scale simulation of burn probabilities, flame lengths, and fire size distribution for the United States

Components of a quantitative risk assessment were produced by simulation of burn probabilities and fire behavior variation for 134 fire planning units (FPUs) across the continental U.S. The system uses fire growth simulation of ignitions modeled from relationships between large fire occurrence and the fire danger index Energy Release Component (ERC). Simulations of 10,...

Author(s):

Mark A. Finney; Charles W. McHugh; Isaac Grenfell; Karin L. Riley

Year:

2010

Keywords:

fire simulation, fire risk assessment

Source:

In: Viegas, D. X., ed. Proceedings of the VI International Conference on Forest Fire Research; 15-18 November 2010; Coimbra, Portugal. Coimbra, Portugal: University of Coimbra. 12 p.

Ecological effects of prescribed fire season: a literature review and synthesis for managers

Prescribed burning may be conducted at times of the year when fires were infrequent historically, leading to concerns about potential adverse effects on vegetation and wildlife. Historical and prescribed fire regimes for different regions in the continental United States were compared and literature on season of prescribed burning synthesized. In regions and vegetation...

Author(s):

Eric E. Knapp; Becky L. Estes; Carl N. Skinner

Year:

2009

Keywords:

Fire effects, fire intensity, fire season, fuel consumption, historical fire regime, phenology, prescribed fire, pyrodiversity

Source:

Gen. Tech. Rep. PSW-GTR-224. Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station. 80 p

Mechanical restoration of California mixed-conifer forests: does it matter which trees are cut?

The montane ecosystems of northern California have been subjected to repeated manipulation and active fire suppression for over a century, resulting in changes in community structure that contribute to increased wildfire hazard. Ecosystem restoration via reduction of stand density for wildfire hazard mitigation has received substantial attention in recent years;...

Author(s):

Jessica Miesel; Ralph Boerner; Carl Skinner

Year:

2009

Keywords:

forest floor, microbial activity, mixed-conifer forest, soil nutrients, soil organic matter, thinning

Source:

Restoration Ecology 17(6): 784-795

Optimal surveillance and eradication of invasive species in heterogeneous landscapes

Cost-effective surveillance strategies are needed for efficient responses to biological invasions and must account for the trade-offs between surveillance effort and management costs. Less surveillance may allow greater population growth and spread prior to detection, thereby increasing the costs of damages and control. In addition, surveillance strategies are usually...

Author(s):

Rebecca S. Epanchin-Niell; Robert G. Haight; Ludek Berec; John M. Kean; Andrew M. Liebhold

Year:

2012

Keywords:

Biological invasions, cost efficient, detection, eradication, gypsy moth, Lymantria dispar, monitoring, pest management, resource allocation, risk management

Source:

Ecology Letters. 15: 803-812.

Scaling up from greenhouse resistance to fitness in the field for a host of an emerging forest disease

Forest systems are increasingly threatened by emergent, exotic diseases, yet management strategies for forest trees may be hindered by long generation times and scant background knowledge. We tested whether nursery disease resistance and growth traits have predictive value for the conservation of Notholithocarpus densiflorus, the host most...

Author(s):

Katherine J. Hayden; Matteo Garbelotto; Richard Dodd; Jessica W. Wright

Year:

2013

Keywords:

forest management, generalized linear mixed models, host–parasite interactions, invasive species, natural selection and contemporary evolution, quantitative genetics, sudden oak death, survival analysis

Source:

Evolutionary Applications

Optimal strategies for the surveillance and control of forest pathogens: A case study with oak wilt

Cost-effective strategies are needed to find and remove diseased trees in forests damaged by pathogens. We develop a model of cost-minimizing surveillance and control of forest pathogens across multiple sites where there is uncertainty about the extent of the infestation in each site and when the goal is to minimize the expected number of new infections. We allow for a...

Author(s):

Tetsuya Horie; Robert G. Haight; Frances R. Homans; Robert C. Venette

Year:

2013

Keywords:

forest pathogens, surveillance, optimal management, uncertainty, Ceratocystis fagacearum

Source:

Ecological Economics. 86:78-85.

Failure of black cohosh (Actaea racemosa L.) rhizome transplants: potential causes and forest farming implications

Black cohosh (Actaea racemosa L.) rhizomes are harvested extensively from eastern North American forests and sold worldwide for treatment of menopausal symptoms. While forest farming is encouraged to reduce wild-harvest impacts, little information is available to aid landowners in successfully cultivating black cohosh. This study examined survival and multi-year growth...

Author(s):

Christine J. Small; James L. Chamberlain; Christopher M. Nuckols

Year:

2014

Keywords:

Deciduous forest herbs, Forest farming, fungal root rot, medicinal plant cultivation, non-timber forest products

Source:

Agroforestry Systems

Chapter 3: Old growth, disturbance, forest succession, and management in the area of the Northwest Forest Plan

In this chapter, we examine the scientific basis of the assumptions, management strategies, and goals of the Northwest Forest Plan (NWFP, or Plan) relative to the ecology of old-growth forests, forest successional dynamics, and disturbance processes. Our emphasis is on ?coarse-filter? approaches to conservation (i.e., those that are concerned with entire ecosystems,...

Author(s):

Thomas A. Spies; Paul F. Hessburg; Carl N. Skinner; Klaus J. Puettmann; Matthew J. Reilly; Raymond J. Davis; Jane A. Kertis; Jonathan W. Long; David C. . Shaw

Year:

2018

Keywords:

Northwest Forest Plan, science, management, restoration, northern spotted owl, marbled murrelet, climate change, socioeconomic, environmental justice.

Source:

In: Spies, T.A.; Stine, P.A.; Gravenmier, R.; Long, J.W.; Reilly, M.J., tech. coords. 2018. Synthesis of science to inform land management within the Northwest Forest Plan area. Gen. Tech. Rep. PNW-GTR-966. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station: 95-243.

Evaluation of forest management systems under risk of wildfire

We evaluate the economic efficiency of even- and uneven-aged management systems under risk of wildfire. The management problems are formulated for a mixed-conifer stand and approximations of the optimal solutions are obtained using simulation optimization. The Northern Idaho variant of the Forest Vegetation Simulator and its Fire and Fuels Extension is used to predict...

Author(s):

Kari Hyytiainen; Robert G. Haight

Year:

2010

Keywords:

even-aged management, fire risk, individual tree model, Monte Carlo simulation, simulation optimization, uneven-aged management

Source:

European Journal of Forest Research. 129: 909-919.

Scaling up from greenhouse to field resistance in tanoaks

Sudden oak death (SOD) has had a devastating impact on tanoaks (Notholithocarpus densiflorus (Hook. & Arn.) Manos, Cannon & S.H. Oh) in California and Oregon. Tanoaks are a key component of the forests in which they are endemic and are one of the few species that are both killed by Phytophthora ramorum and...

Author(s):

Katherine J. Hayden; Richard S. Dodd; Catherine Eyre; Matteo Garbelotto; Jessica W. Wright

Year:

2013

Keywords:

Sudden oak death, Phytophthora ramorum, invasive species, tanoak, Notholithocarpus densiflorus, coast live oak, Quercus agrifolia, Japanese larch, Larix kaempferi

Source:

In: Frankel, S.J.; Kliejunas, J.T.; Palmieri, K.M.; Alexander, J.M. tech. coords. Proceedings of the sudden oak death fifth science symposium. Gen. Tech. Rep. PSW-GTR-243. Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station: p. 146

Experimental harvest and regrowth in Appalachian black cohosh ( Actaea racemosa , Ranunculaceae) populations: Implications for sustainable management of a medicinal forest herb

A broad range of understory forest herbs are harvested for medicinal properties, particularly from species-rich forests of the central and southern Appalachian Mountains. Many species have been collected and used for centuries with little understanding of harvest impacts, some with resulting population declines. Species valued for belowground components, such...

Author(s):

Christine J. Small; James L. Chamberlain

Year:

2018

Keywords:

Appalachian oak forests, medicinal plants, nontimber forest products, perennial forest herbs, rhizome harvest

Source:

The Journal of the Torrey Botanical Society

Optimization of forest wildlife objectives

This chapter presents an overview of methods for optimizing wildlife-related objectives. These objectives hinge on landscape pattern, so we refer to these methods as "spatial optimization." It is currently possible to directly capture deterministic characterizations of the most basic spatial relationships: proximity relationships (including those that lead to...

Author(s):

John Hof; Robert Haight

Year:

2007

Keywords:

Habitat connectivity, landscape pattern, reaction-diffusion model, response-surface analysis, search heuristics, simulation optimization, spatial optimization, stochastic population model

Source:

In: Weintraub, Andres; Romero, Carlos; Bjorndal, Trond; Epstein, Rafael; Miranda, Jaime, eds. Handbook of operations research in natural resources: Springer. 405-418.

Florida’s forests, 2007

The principal findings of the eighth forest survey of Florida are presented. This survey marks a major change in the Forest Inventory and Analysis sampling protocol from a periodic prism sample to an annualized fixed-plot sample. Topics examined include forest area, ownership, forest-type groups, stand origin, timber volume, growth, removals, and mortality, timber...

Author(s):

Mark J. Brown; Jarek Nowak; Tony G. Johnson; Sonja N. Oswalt; James L. Chamberlain; Edward L. Barnard

Year:

2012

Keywords:

FIA, Florida, forest inventory, forest survey, forest type, timberland, TPO, volume

Source:

Resour. Bull. SRS–188. Asheville, NC: U.S. Department of Agriculture Forest Service, Southern Research Station. 132 p.

North Carolina’s forests, 2007

The principal findings of the eighth forest survey of North Carolina are presented. In 2007, forests covered 18.6 million acres of the State, of which 18.1 million were classified as timberland. Oak-hickory was the most common forest-type group and covered 7.3 million acres of the timberland. The second most common forest-type group was loblolly-shortleaf pine, which...

Author(s):

Mark J. Brown; Barry D. New; Tony G. Johnson; James L. Chamberlain

Year:

2014

Keywords:

FIA, forest health, forest ownership, timber growth, timber product output, timber removals, timber volume, timberland

Source:

Resour. Bull. SRS-RB-199. Asheville, NC: USDA-Forest Service, Southern Research Station. 112 p.

Developing a disease resistance research program for tanoaks

The introduced pathogen Phtyophthora ramorum has had a devastating impact on populations of tanoak (Notholithocarpus densiflorus (Hook. & Arn.) Manos, Cannon & S.H.Oh) in California and Oregon, where it causes the disease known as sudden oak death. Tanoaks are a keystone species ecologically, and one of the few species that are...

Author(s):

Katherine J. Hayden; Jessica W. Wright; Richard S. Dodd; Matteo Garbelotto

Year:

2012

Keywords:

forest disease and insect resistance, evolutionary biology, climate change, durable resistance

Source:

In: Sniezko, Richard A.; Yanchuk, Alvin D.; Kliejunas, John T.; Palmieri, Katharine M.; Alexander, Janice M.; Frankel, Susan J., tech. coords. Proceedings of the fourth international workshop on the genetics of host-parasite interactions in forestry: Disease and insect resistance in forest trees. Gen. Tech. Rep. PSW-GTR-240. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture. p. 252

Wildlife Conservation Planning Using Stochastic Optimization and Importance Sampling

Formulations for determining conservation plans for sensitive wildlife species must account for economic costs of habitat protection and uncertainties about how wildlife populations will respond. This paper describes such a formulation and addresses the computational challenge of solving it. The problem is to determine the cost-efficient level of habitat protection...

Author(s):

Robert G. Haight; Laurel E. Travis

Year:

1997

Keywords:

Importance sampling, metapopulation, Monte Carlo simulation, population modeling, retrospective optimization, wildlife management.

Source:

Forest Science. Vol. 43 no. 1.:p. 129-139. (1997)

Modeling for Endangered-Species Recovery: Gray Wolves in the Western Great Lakes Region

The Federal Endangered Species Act is intended to conserve endangered and threatened species and their habitats and to improve the species' status so that they no longer need protection under the Act. In the process of planning the recovery of threatened or endangered species, the U.S. Fish and Wildlife Service increasingly uses demographic models to predict...

Author(s):

Jean Fitts Cochrane; Robert G. Haight; Anthony M. Starfield

Year:

2003

Keywords:

Source:

In: Dale, Virginia H., ed. Ecological Modeling for Resource Management. New York, NY: Springer-Verlag: 23-45

Pages

Total Publications in Treesearch: 53,230

Show/Hide Search Form

Pages

A simulation of probabilistic wildfire risk components for the continental United States

Designing Species Translocation Strategies When Populaton Growth and Future Funding Are Uncertain

Ponderosa pine needle length: an early indicator of release treatment effectiveness

Continental-scale simulation of burn probabilities, flame lengths, and fire size distribution for the United States

Ecological effects of prescribed fire season: a literature review and synthesis for managers

Mechanical restoration of California mixed-conifer forests: does it matter which trees are cut?

Optimal surveillance and eradication of invasive species in heterogeneous landscapes

Scaling up from greenhouse resistance to fitness in the field for a host of an emerging forest disease

Optimal strategies for the surveillance and control of forest pathogens: A case study with oak wilt

Failure of black cohosh (Actaea racemosa L.) rhizome transplants: potential causes and forest farming implications

Chapter 3: Old growth, disturbance, forest succession, and management in the area of the Northwest Forest Plan

Evaluation of forest management systems under risk of wildfire

Scaling up from greenhouse to field resistance in tanoaks

Experimental harvest and regrowth in Appalachian black cohosh ( Actaea racemosa , Ranunculaceae) populations: Implications for sustainable management of a medicinal forest herb

Optimization of forest wildlife objectives

Florida’s forests, 2007

North Carolina’s forests, 2007

Developing a disease resistance research program for tanoaks

Wildlife Conservation Planning Using Stochastic Optimization and Importance Sampling

Modeling for Endangered-Species Recovery: Gray Wolves in the Western Great Lakes Region

Pages

Chief Financial Officer

Office of the Chief

Business Operations

National Forest System

Research and Development

State and Private Forestry