Life Sciences Commons^™

Nepal Studies Association Newsletter, Issue 1, Nepal Studies Association

Nepal Studies Association Newsletter

No abstract provided.

Answering Questions About Tourism: A Growing Economic Development Tool, John D. Hunt, Perry J. Brown, John H. Schomaker

Forest Management Faculty Publications

No abstract provided.

The Use Of Activated Carbon For Removal Of Dyestuffs From Secondary Paper Mill Effluent, Duane L. Zomer

Paper Engineering Senior Theses

Adsorption of colored materials, dyestuff from simulated paper mill effluents by activated carbon columns appears to be a very effective method of removing color from waste effluents. Laboratory investigations have indicated that materials commonly encountered in paper mill effluents tend to slow the adsorption of color molecules. This phenomenon is overcome by allowing more time for adsorption. This lends itself to a diffusion-limited type adsorption mechanism with multi-layering adsorption on the carbon surface.

Using carbon of not less than 45 mesh, carbon adsorption columns appear to become feasible for large volume color removal. There appeared to be no significant head …

The Use Of Activated Carbon For Removal Of Dyestuffs From Secondary Paper Mill Effluent, Duane L. Zomer

Paper Engineering Senior Theses

Adsorption of colored materials, dyestuff from simulated paper mill effluents by activated carbon columns appears to be a very effective method of removing color from waste effluents. Laboratory investigations have indicated that materials commonly encountered in paper mill effluents tend to slow the adsorption of color molecules. This phenomenon is overcome by allowing more time for adsorption. This lends itself to a diffusion-limited type adsorption mechanism with multi-layering adsorption on the carbon surface.

Using carbon of not less than 45 mesh, carbon adsorption columns appear to become feasible for large volume color removal. There appeared to be no significant head …

Land For Ecological Purposes, Russell K. Rickert

Gordon Natural Area History & Strategic Plan Documents

No abstract provided.

Forestry Bulletin No. 22: Silviculture Of Southern Upland Hardwoods, Laurence C. Walker

Forestry Bulletins No. 1-25, 1957-1972

"Upland hardwood types occur throughout the forests of the southern United States. Sometimes deciduous species intermingle with pines to form mixed conifer-broadleaf types; other times hardwood types are interspersed with pine types; depending upon soil, physiography, past land use, and fire."

Texas Forestry Paper No. 11, J. Robert Singer, William T. Miller

Texas Forestry Papers, No. 1-29, 1970-1976

"A reconnaissance level system for planning and environmental impact analysis"

Texas Forestry Paper No. 13, Ray R. Hicks Jr., Johnny C. Jones, Michael H. Cotton

Texas Forestry Papers, No. 1-29, 1970-1976

"Pollen development and release in loblolly and shortleaf pine near nacogdoches, texas, 1971"

Texas Forestry Paper No. 12, J. Robert Hasness, J. David Lenhart

Texas Forestry Papers, No. 1-29, 1970-1976

"Cubic-foot volumes for loblolly pine trees in old-field plantations in the interior west gulf coastal plain"

Lucille Vinyard Journal 1972, Lucille Vinyard

Lucille Vinyard Journal Collection

No abstract provided.

Forest Fuel Accumulation -- A Growing Problem, Marvin Dodge

The Bark Beetles, Fuels, and Fire Bibliography

Discusses the problem caused by accumulation of forest fuels in the wild-land forests of the western USA under the policy of total fire protection pursued there for many years, and emphasizes the need to find economical and practical ways of reducing fuel hazards in these forests, especially by means of prescribed burning under conditions in which low-intensity fires can be achieved.

Effects Of Feeding And Mating On Pheromone Release In The Southern Pine Beetle, Jack E. Coster, J.P. Vite`

Faculty Publications

Response of field populations of Delldroetoll1lS frontalis Zimmermann to their aggregating pheromone was correlated with pheromone content of dissectted hindgut tissues of adult beetles a determined by the gas-liquid chromatography (GLC) technique. Adult beetles in various stages of feeding activity and reproductive states were used for this purpose. Two major components of the aggregating pheromones, frontalin and trans-verbenol, were found in the largest quantities in emergent unfed females. After 48 hours of feeding, frontal in content of the hindguts was 29% and trans-verbeno content was only 5% of that of emergent females. Continuous bioassays of females feeding in host material …

Predicting Survival Of Unthinned, Old-Field Loblolly Pine Plantations, J. David Lenhart

Faculty Publications

A prediction equation, graph, and tables can assist forest landowners in estimating tree survival in unthinned loblolly pine (Pinus Taeda L.) plantations in the Interior West Gulf coastal plain.

An Alternative Procedure For Improving Height/Age Data From Stem Analysis, J. David Lenhart

Faculty Publications

No abstract provided.

Natural Succession In North-Central Minnesota, Henry L. Hansen, Vilis Kurmis

Aspen Bibliography

No abstract provided.

Cattle Use Of A Sprayed Aspen Parkland Range, J.E. Hilton, A.W. Bailey

Aspen Bibliography

Aspen parkland range in central Alberta that had been treated with a herbicide two years prior to the study had greater grazing use of the sprayed forest vegetation than did the untreated forest.

A Simulation Model For The Management Of Sandhill Cranes, Richard S. Miller, George S. Hochbaum, Daniel B. Botkin

Yale School of the Environment Bulletin Series

No abstract provided.

Simulation Of The Daily Growth Of An Aspen Population From The Measured Co2-Exchange Rates Of The Components, G.C. Bate, D.T. Canvin

Aspen Bibliography

The daily total CO₂-exchange of an aspen population (32 trees) was measured using a growth chamber gas analysis system which had been shown to measure accurately the actual carbon gain of the population. The CO₂-exchange rates of the components (e.g. roots, stems, leaves) were measured in the light and dark and these rates were used to calculate the total CO₂-exchange of the population using a computer model. The carbon gain during the photoperiod was underestimated by 25% in the simulation while the carbon loss during the nyctoperiod was overestimated 100% by the simulation.

Phenetic Affinities In Small Populations Of New York Aspens, C.M. Harrison, F.A. Valentine

Aspen Bibliography

According to Anderson (1962) much of the variation in wild populations of plants is attributable to occasional introgressive hybridization.

The Basic Habitat Resource For Ruffed Grouse, Gordon W. Gullion, Franklin J. Svovoda

Aspen Bibliography

No abstract provided.

History Of Sedimentation In Montsweag Bay, Detmar Schnitker

Maine Collection

History of Sedimentation In Montsweag Bay

by Setmar Schnitker

Bulletin #25, Department of Forestry, Augusta, Maine, 1972.

Contents: Abstract / Introduction / Geographic Setting / Seismic Profiling / Pleistocene Sediments / Holocene Sediments / Actual Sedimentation /. Suspended Sediments / Recent Changes / Outlook / Acknowledgements / References

A Proposal To Study Soil Nutrient Losses Resulting From Clear Cutting The Aspen Forest Type, Zanner

Aspen Bibliography

No abstract provided.

Computer Simulation Of Douglas-Fir Tree And Stand Growth, James D. Arney

Aspen Bibliography

No abstract provided.

An Allometric Model For Bole Biomass Estimates Of Spruce And Aspen In Southwestern Colorado, Thomas D. Landis

Aspen Bibliography

No abstract provided.

Aspen Minnesota's No. 1 Tree, George Rossman, Bob Rossman, Allen Rossman

Aspen Bibliography

For thousands of years after the last glaciers disappeared from northern Minnesota, the forces of nature worked to develop a magnificent forest of predominantly white and red pine. Stands of big pines covered more than 5 million acres.

Deer And Aspen, American Box Board Co.

Aspen Bibliography

He's a big eater.

A Taxonomic Study Of Two Nominal Subspecies Of Pikas (Ochotona Princeps) In The Cascade Mountains Of Oregon, Richard M. Coots

Dissertations and Theses

Pikas from four colonies in the Cascade Mountains of Oregon were examined. Two colonies were chosen from within the geographical distribution of two nominal subspecies. A discriminate analysis of morphological measurements taken from the specimens showed that each colony could be distinguished from each other. Each colony studied showed more intra-colony similarity than inter-colony similarity regardless of distance separating the colonies or subspecies designations. The results indicate that the validity of subspecies designations for this species can be questioned.

[I] Ceratocystis Canker Of Aspen. [Ii] Insect Transmission Of Ceratocystis Species Associated With Aspen Cankers, Thomas E. Hinds

Aspen Bibliography

No abstract provided.

Insect Transmission Of Ceratocystis Species Associated With Aspen Cankers, Thomas E. Hinds

Aspen Bibliography

No abstract provided.

Youth, Maturity, And Old Age, James S. Fralish

Aspen Bibliography

No abstract provided.