Life Sciences Commons^™

An Investigation Of The Environmental Relationships Of Selected Forest Habitat Types In Northern Utah, Penelope Morgan Lawton

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

It was the purpose of this study to examine an assumption basic to the forest habitat type classification system. Included in each habitat type is all land capable of supporting a single climax plant community type. In practice, land is grouped based on species camposition, relative abundance, and successional trends of the vegetation supported by the land. Land units of the same habitat type are assumed to represent similar environments. No previous critical evaluation of this assumption has been done.

Land in the study area had been previously classified under the habitat type system. Relationships between vegetation and environment were …

Uneven-Aged Forest Management: State Of The Art (Or Science?)

Forestry

Examines some important historical factors that have caused widespread preference of the even-aged management system over the uneven-aged. Major decisions facing forest managers interested in applying uneven-aged management are defined, and a review is made of techniques traditionally used, or recently proposed, for use in making these decisions. Finally, problem areas needing further research and development are identified.

Mature Aspen Forest, Donald Rakstad, John R. Probst

Aspen Bibliography

No abstract provided.

Aspen Forest (50-Year), Connie J. Pearson, John R. Probst

Aspen Bibliography

No abstract provided.

Seasonal Variation In Soil Nutrients Under Six Rocky Mountain Vegetation Types, T. Weaver, F. Forcella

Aspen Bibliography

No abstract provided.

Tree Rings And Kaibab North Deer Hunting Success, 1925-1975, C.E. Young

Aspen Bibliography

Knowledge of the biotic and abiotic factors producing long and short-term changes in numbers provides the basis for managing wildlife populations. Frequently, evaluation of these factors over a long time period is impossible. the large, well-documented past fluctuations of mule deer (Odocoileus hemionus) numbers on Arizona's North Kaibab plateau (Rasmussen, 1941; Russo, 1964; Caughley, 1970; Burk, 1973) make it potentially useful for examining long-term effects.

Creating Stable Shrub Communities For Managed Openings In The Aspen Forest, Donald A. Perala, R.W. Sorensen

Aspen Bibliography

No abstract provided.

Virus And Virus-Like Diseases Of Poplar: Are They Threatening Diseases?, S. Navratil

Aspen Bibliography

No abstract provided.

Shrub Nesting Of The Red-Eyed Vireo [Vireo Olivaceous] In Relation To Structure Of Aspen [Populus Tremuloides] Forests [In Northern Minnesota], W.J. Mattson, Jr

Aspen Bibliography

No abstract provided.

A Classification Of Spruce-Fir And Mixed Conifer Habitat Types Of Arizona And New Mexico, William H. Moir, John A. Ludwig

Aspen Bibliography

Spruce-fir forests occupy less than 0.5% of Arizona and about 2% of New Mexico. Despite this limited distribution, these high elevation forests are important resources, providing major snow catchement and watershed areas and serving as focal points for winter and summer recreation. The subtending mixed conifer forests, covering about 3% and 4% of Arizona and New Mexico, respectively, are intensively utilized for timber, range and wildlife production, watershed management, and recreation. These forest types respond in complex ways to many man-caused and natural impacts and treatments such as timber harvesting, fire, recreation usage, and foraging by livestock and game.

Wildlife Habitat Investigations And Management Implications On The Bridger-Teton National Forest, G.E. Gruell, M.S. Boyce, L.D. Hayden Wing

Aspen Bibliography

Grazing impact by elk and moose has been a point of concern in Jackson Hole for many years. Concern has been primarily directed towards sparsely vegetated south aspects, aspen stands, and willow bottoms. Numerous transects have quantified heavy foliage utilization. Trend studies have been mostly inconclusive. Study of historical narratives have quantified heavy forage utilization. Trend studies have been mostly inconclusive. Study of historical narratives, early photographs and consideration of plant physiology, soils data, and fire ecology have aided interpretations of vegetal trend and plant succession in recent years. Photographs show little change on sparsely vegetated sites. Soils information on …

Growth Response To Fertilizer In A Young Aspen-Birch Stand, M.M. Czapowskyj, L.O. Safford

Aspen Bibliography

No abstract provided.

Elk Pellet Group Distributions And Rates Of Deposition In Aspen And Lodgepole Pine Habitats, W.B. Collins, P.J. Urness

Aspen Bibliography

No abstract provided.

Effects Of Burning On The Aspen Ecosystem, Dale L. Bartos

Aspen Bibliography

No abstract provided.

Brush Control On Sandy Rangelands In Central Alberta, A.W. Bailey, H.G. Anderson

Aspen Bibliography

No abstract provided.

Estimating The Volume Of Hardwood Crowns, Stems, And The Total Tree, Douglas R. Phillips, Noel D. Cost

Aspen Bibliography

No abstract provided.

Preliminary Classification For The Coniferous Forest And Woodland Series Of Arizona And New Mexico, Earle F. Layser, Gilbert H. Schubert

Aspen Bibliography

No abstract provided.

Aspen Forest (20-Year), Connie J. Pearson, John B. Probst

Aspen Bibliography

This report includes a breeding-bird census, a list of dominant plant species, and brief physiographic data for a 20-year old aspen forest in Ontonagon, Michigan.

Sucker Regeneration In A Utah Aspen Clone After Clearcutting, Partial Cutting, Scarification And Girdling, George A. Schier, Arthur D. Smith

Aspen Bibliography

No abstract provided.

Long-Term Changes In Cottonwoods On A Grazed And An Ungrazed Plains Bottomland In Northeastern Colorado, Glenn L. Crouch

Aspen Bibliography

No abstract provided.

Aerial Stand Volume Table For Plains Cottonwood In Eastern Colorado, Carleton B. Edminster, James R. Getter

Aspen Bibliography

No abstract provided.

Interacting Environmental Factors Associated With The Incidence Of Hypoxylon Canker On Trembling Aspen, R.I. Bruck

Aspen Bibliography

No abstract provided.

Metric Site Index Curves For Aspen, Birch And Conifers In The Lake States, P.R. Laidly

Aspen Bibliography

No abstract provided.

The Identification Of Tobacco Necrosis Virus In Deteriorating Clones Of Aspen, C.R. Hibben, J. Reese, R.F. Bozarth

Aspen Bibliography

No abstract provided.

Fire-Decay: Interactive Roles Regulating Wood Accumulation And Soil Development In The Northern Rocky Mountains, A. E. Harvey, M. J. Larsen, M. F. Jurgensen

Aspen Bibliography

Decay and fire play interactive roles in recycling wood and other organic materials in forest ecosystems, and contribute to the development of high quality soils in the Northern Rocky Mountains. Decayed wood, charcoal, and other decomposed organic matter are the principal media for ectomycorrhizal and nonsymbiotic nitrogen fixing microbes. The activities of these microbes are critical to the growth of forest trees. The balance between decay and fire, as it affects the amount, distribution, and type of organic matter, controls the ability of forest soils to support the growth of trees.

Equations Predicting Primary Productivity (Biomass) Of Trees, Shrubs And Lesser Vegetation Based On Current Literature, W. Stanek, D. State

Aspen Bibliography

No abstract provided.

Winter Diets Of Elk And Deer In The Blue Mountains, Oregon, Jon Skovlin, Martin Vavra

Aspen Bibliography

No abstract provided.

A Trap To Measure Populus And Salix Seed Fall, J.C. Zasada, R. Densmore

Aspen Bibliography

No abstract provided.

Phytoalexin Production By Aspen (Populus Tremuloides Michx.) In Response To Infection By Hypoxylon Mammatum (Wahl.) Mill. And Alternaria Spp, G. Flores, M. Hubbes

Aspen Bibliography

No abstract provided.

Aspen-Birch Forest, Donald Rakstad, John R. Probst

Aspen Bibliography

No abstract provided.