Open Access. Powered by Scholars. Published by Universities.®
- Institution
- Keyword
-
- Broadleaves (9)
- Suckering (3)
- Increment (2)
- Island biogeography (2)
- Natural Regeneration (2)
-
- Silviculture (2)
- Variation (2)
- Yields (2)
- Agriculture (1)
- Beech-maple forest (1)
- Bird populations (1)
- Boreal Forests (1)
- Browse (1)
- Chemical composition (1)
- Clones (1)
- Cold air drainage (1)
- Conifers (1)
- Coppice (1)
- Economics (1)
- Environmental impact statements (1)
- Equations (1)
- Exploitable age or size (1)
- Fire (1)
- Fire effects (1)
- Flowering (1)
- Fodder (1)
- Foliage (1)
- Forage (1)
- Forest fragments (1)
- Forest islands (1)
Articles 1 - 29 of 29
Full-Text Articles in Life Sciences
The March Ice Storm: Disaster And Opportunity, Paul Matthiae, Philip B. Whitford
The March Ice Storm: Disaster And Opportunity, Paul Matthiae, Philip B. Whitford
Field Station Bulletins
The ice storm of March 1-5,1976, of perhaps once in a century severity, hit the UWM Field Station with ice loads up to 2 in. thick. The crowns of many trees, especially older beech and maple, were literally torn asunder by the sheer weight. In the swamp forest most tamaracks had their tops snapped off. The beech-maple forest of course was one of the Nature Conservancy's first major projects in Wisconsin, one of the jewels of the Scientific Areas System, and fortunately one of the most thoroughly studied tracts in the state. We had excellent pre-storm data on the forest …
Soil Monolith Construction: A Practical Teaching Experience For Field And Lab, Nicholas P. Kobriger, James B. Levenson
Soil Monolith Construction: A Practical Teaching Experience For Field And Lab, Nicholas P. Kobriger, James B. Levenson
Field Station Bulletins
Soil formation, structures and differences are difficult to visualize or understand without being able to experience them. Most of us are familiar with the soil profiles (soil sequum) on display in many Soil Conservation Service or County Extension Service offices. Whether an ecologist, engineer, or home gardener, we have all examined the intricate structures, features and horizon development. The objective of this paper is to describe a technique to construct such soil monoliths for classroom use with minimal expense.
Mineral Cycling And Productivity In An Upland Deciduous Forest: Soils And Methods, Nicholas P. Kobriger
Mineral Cycling And Productivity In An Upland Deciduous Forest: Soils And Methods, Nicholas P. Kobriger
Field Station Bulletins
This study was designed to improve our understanding of the dynamics of the upland forest and of the productivity of Wisconsin forest communities. Data were collected to quantify the biological cycling of nutrients, nutrient availability and water availability, the principal factors supporting production of organic matter in forest ecosystems (Duvineaud and Denaeyer-De Smet, 1970). Using the data from this study we can then examine the stability of the upland deciduous forest and its response to the environment, for example recovery from a catastrophic event such as the March ice storm. Once this ecosystem's structure and functioning are known, we can …
Landscape Patterns And Forest Island Interactions, Forest Sterns, James B. Levenson, Paul Matthiae
Landscape Patterns And Forest Island Interactions, Forest Sterns, James B. Levenson, Paul Matthiae
Field Station Bulletins
On March 18, the Field Station welcomed faculty and graduate students involved in the Landscape Pattern Analysis project. This study has both theoretical and practical objectives. The theoretical problems are concerned with island biogeography as outlined by Robert MacArthur and E. O. Wilson were discussed in the Spring 1975 Field Station Bulletin. These questions relate principally to how island size and distance from neighboring islands affect species composition and extinction, i.e., affect the diversity of island communities. These theoretical questions are being approached in a series of studies undertaken jointly by scientists at the Oak Ridge National Laboratory, Rutgers University, …
Cold Air Drainage: A Field Experiment, James Levenson, Paul Matthiae
Cold Air Drainage: A Field Experiment, James Levenson, Paul Matthiae
Field Station Bulletins
The following descriptions of a 24-hour cycle of the flows of radiant energy in November 1974 were written as follow-up assignments to a class exercise measuring these energy flows at the Field Station (Meteorology 511 - Dynamic Meteorology I: Radiation). All the flows of short-wave (or solar) radiation (wave length less than 3 micrometers) and long-wave radiation (wave lengths 3 to 50 micrometers) were measured, and their interrelations calculated.
Forestry Report, P. Sims, G. Steneker, K. Fronting, C. Kirby, P. Van Eck, H. Johnson, N. Walker, R. Bohning, L. Carlson, I. Bella, W. Johnstone, R. Waldron, L. Brace
Forestry Report, P. Sims, G. Steneker, K. Fronting, C. Kirby, P. Van Eck, H. Johnson, N. Walker, R. Bohning, L. Carlson, I. Bella, W. Johnstone, R. Waldron, L. Brace
Aspen Bibliography
No abstract provided.
Nepal Studies Association Bulletin, No. 8, Nepal Studies Association, Donald A. Messerschmidt
Nepal Studies Association Bulletin, No. 8, Nepal Studies Association, Donald A. Messerschmidt
Nepal Studies Association Newsletter
No abstract provided.
Natural Landscaping Bill (Ab 348), Philip Whitford
Natural Landscaping Bill (Ab 348), Philip Whitford
Field Station Bulletins
Native plants are making a comeback in Wisconsin, thanks to the growing number of homeowners who are switching to "natural landscaping". Many parks are also preserving or restoring areas with native plant communities, and the state highway department and some county departments are reducing mowing and spraying of road sides to encourage the return of native wildflowers, grasses and some shrubby species. Too often such efforts are stymied, however, by a municipal cutting ordinance or noxious weed list, and citizens are told to conform with the conventional clipped lawn aesthetics (an ecological wasteland) or the city will do it for …
Species Composition And Absolute Population Density Of Breeding Birds Obtained By Two Methods, Dennis Keith Gustafson
Species Composition And Absolute Population Density Of Breeding Birds Obtained By Two Methods, Dennis Keith Gustafson
Field Station Bulletins
John Emlen in 1971 (Auk 88:323-341.) explained details of a new technique for determination of bird population densities involving a transect or strip-census count. From this count, using previously established coefficients of detectability, absolute population densities can be determined. The Emlen technique is applicable in summer and winter while necessitating proportionately fewer man-hours in the field than comparable methods. This study was an evaluation of the technique by comparing it with the territorial mapping method. The study was conducted in the upland beech-maple woods at The University of Wisconsin-Milwaukee Field Station. Twelve censuses each year were taken from June 28 …
Island Biogeography In Southeastern Wisconsin: A Progress Report., James Levenson, Paul Matthiae
Island Biogeography In Southeastern Wisconsin: A Progress Report., James Levenson, Paul Matthiae
Field Station Bulletins
Ecosystems develop as a result of interactions between the biotic and abiotic components in the environment. Natural systems are diverse and stable when interactions between the community and the supersystem are in balance. Change or perturbation in the supersystem will effect a commensurate change in the natural subsystems. Urbanization results in the remaining natural systems becoming isolated within the urban system-a supersystem quite unlike that which gave rise to the natural system. As a result, the natural subsystem must change in the way in which it interacts with its new supersystem to reach equilibrium. A mechanism for such change in …
The Radiation Weekend, David Miller, Anthony Siebers, Joe Manning
The Radiation Weekend, David Miller, Anthony Siebers, Joe Manning
Field Station Bulletins
The following descriptions of a 24-hour cycle of the flows of radiant energy in November 1974 were written as follow-up assignments to a class exercise measuring these energy flows at the Field Station (Meteorology 511 - Dynamic Meteorology I: Radiation). All the flows of short-wave (or solar) radiation (wave length less than 3 micrometers) and long-wave radiation (wave lengths 3 to 50 micrometers) were measured, and their interrelations calculated.
Scope Of Work, Environmental Impact Statement For The Dickey-Lincoln School Lakes Project, New England Division, United States Army Engineer Division, United States Army Corps Of Engineers
Scope Of Work, Environmental Impact Statement For The Dickey-Lincoln School Lakes Project, New England Division, United States Army Engineer Division, United States Army Corps Of Engineers
Dickey-Lincoln School Lakes Project
Revised draft combines data previously published in two separate impact statements prepared by the corps relating to the dams, reservoirs and power plants and by the U. S. Department of Energy for transmission facilities to link the St. John River development to the New England power grid. The latter agency is responsible for the marketing and distribution of power generated at federally-financed installations.
Notes On Nosodendron Californicum Horn On Slime Fluxes Of Grand Fir, Abies Grandis (Douglas) Lindley, In Northern Idaho (Coleoptera: Nosodendridae), David Kulhavy, Harold Osborne
Notes On Nosodendron Californicum Horn On Slime Fluxes Of Grand Fir, Abies Grandis (Douglas) Lindley, In Northern Idaho (Coleoptera: Nosodendridae), David Kulhavy, Harold Osborne
Faculty Publications
Adults and larvae of Nosodendron californicum Horn were observed and collected from sap exudations on and adjacent to frost cracks of Abiesgrandis (Douglas) Lindley. This is the first published record of this species in Idaho and east of the Cascade Range in the Pacific Northwest.
Nepal Studies Association Bulletin, No. 9, Nepal Studies Association, Donald A. Messerschmidt
Nepal Studies Association Bulletin, No. 9, Nepal Studies Association, Donald A. Messerschmidt
Nepal Studies Association Newsletter
No abstract provided.
Genetic Control Of Sex Ratio, Earliness And Frequency Of Flowering In Populus Tremuloides, F.A. Valentine
Genetic Control Of Sex Ratio, Earliness And Frequency Of Flowering In Populus Tremuloides, F.A. Valentine
Aspen Bibliography
No abstract provided.
Forest Ecology Of The Alaska Taiga, L.A. Viereck
Forest Ecology Of The Alaska Taiga, L.A. Viereck
Aspen Bibliography
No abstract provided.
An Aid To Identifying Aspen Diseases Frequently Encountered In The Southwest, James W. Walters
An Aid To Identifying Aspen Diseases Frequently Encountered In The Southwest, James W. Walters
Aspen Bibliography
No abstract provided.
Deterioration Of Aspen Clones In The Middle Rocky Mountains, George A. Schier
Deterioration Of Aspen Clones In The Middle Rocky Mountains, George A. Schier
Aspen Bibliography
The frequent failure of deteriorating aspen (Populus tremuloides Michx.) clones to regenerate vegetatively by root suckers was studied by comparing the suckering capacity of these clones with adjacent healthy clones. Sucker production from root cuttings was used to evaluate the suckering capacity of a clone. Scarcity of regeneration in deteriorating clones was found to be unrelated to the ability of roots to sucker. A hypothesis based on the apical dominance phenomenon is presented to account for the low numbers of suckers produced by deteriorating clones. Stand data, sucker densities, and root ages of the clones are compared. Aspects of aspen …
Development Of Some Young Aspen Stands In Arizona, J.R. Jones, David P. Trujillo
Development Of Some Young Aspen Stands In Arizona, J.R. Jones, David P. Trujillo
Aspen Bibliography
No abstract provided.
Height-Growth Comparisons Of Some Quaking Aspen Clones In Arizona, John R. Jones, David P. Trujillo
Height-Growth Comparisons Of Some Quaking Aspen Clones In Arizona, John R. Jones, David P. Trujillo
Aspen Bibliography
No abstract provided.
Wounds And Canker Diseases On Western Aspen [Populus Tremuloides], Thomas E. Hinds, R.G. Krebill
Wounds And Canker Diseases On Western Aspen [Populus Tremuloides], Thomas E. Hinds, R.G. Krebill
Aspen Bibliography
No abstract provided.
Sucrose Synthetase From Triploid Quaking Aspen Callus Tissue, Larry Lester Graham
Sucrose Synthetase From Triploid Quaking Aspen Callus Tissue, Larry Lester Graham
Aspen Bibliography
No abstract provided.
A Preliminary Analysis Of Short-Rotation Aspen Management, Alan R. Ek, J.D. Brodie
A Preliminary Analysis Of Short-Rotation Aspen Management, Alan R. Ek, J.D. Brodie
Aspen Bibliography
No abstract provided.
Quaking Aspen: Silvics And Management In The Lake States, K.A. Brinkman, E.I. Roe
Quaking Aspen: Silvics And Management In The Lake States, K.A. Brinkman, E.I. Roe
Aspen Bibliography
No abstract provided.
Wood And Wood-Based Residues In Animal Feeds, Andrew J. Baker, Merril A. Millett, Larry S. Satter
Wood And Wood-Based Residues In Animal Feeds, Andrew J. Baker, Merril A. Millett, Larry S. Satter
Aspen Bibliography
Cellulose is the most abundant, naturally renewable material on earth. It, and hemicellulose, make up about 70% of the dry weight of shrubs and trees. The cellulose of woody plants, however, is largely unavailable to ruminants because of the highly crystalline nature of the cellulose molecule and the existence of a lignin-carbohydrate complex. If convenient ways can be found to enhance the availability of wood cellulose to enzymatic or microbiological systems, wood residues could provide an additional renewable energy feed supply for a world that can maintain no contingency reserve of feedstuffs. It would permit utilization of the large quantities …
Phenotypic Variation Of Trembling Aspen In Western North America, B.V. Barnes
Phenotypic Variation Of Trembling Aspen In Western North America, B.V. Barnes
Aspen Bibliography
No abstract provided.
Odum's Ecosystem Attributes: Testing An Hypothesis, James A. Macmahon, Jan A. Henderson
Odum's Ecosystem Attributes: Testing An Hypothesis, James A. Macmahon, Jan A. Henderson
Aspen Bibliography
No abstract provided.
Production And Nitrogen Content Of Herbage In A Silverberry (Elaeagnus Commutata) Community Compared To Adjacent Grassland And Forest Communities, G.L. Whysong, A.W. Bailey
Production And Nitrogen Content Of Herbage In A Silverberry (Elaeagnus Commutata) Community Compared To Adjacent Grassland And Forest Communities, G.L. Whysong, A.W. Bailey
Aspen Bibliography
No abstract provided.
Estimating Aspen Volume And Weight For Individual Trees, Diameter Classes, Or Entire Stands, Bryce E. Schlaegel
Estimating Aspen Volume And Weight For Individual Trees, Diameter Classes, Or Entire Stands, Bryce E. Schlaegel
Aspen Bibliography
No abstract provided.