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Articles 1 - 25 of 25

Full-Text Articles in Life Sciences

Hollies In Wisconsin, Peter J. Salamun Oct 1970

Hollies In Wisconsin, Peter J. Salamun

Field Station Bulletins

With the coming of the winter season botanical interests are directed chiefly toward yuletide plants, one of which is the holly. The species most commonly used in wreaths and decorations is the English Holly (Ilex aquifolium L.); however, many people are unaware that a number of native holly species are found in eastern North America and two of them occur in Wisconsin. Unfortunately, the Wisconsin representatives are deciduous shrubs and not suitable for Christmas decorations. Although' of no value to us for the holiday season, their fruits are eaten by overwintering birds and squirrels, hence they may be considered as …


Some Bog Denizens, G W. Prescott Oct 1970

Some Bog Denizens, G W. Prescott

Field Station Bulletins

Tucked away in the bogs and swamps of Wisconsin, and in similar habitats throughout the world, thrive a myriad of unicellular plants known as Desmids. They are among the most aesthetic of all microorganisms and vie with the glassywalled Diatoms as "Jewel Plants." If it were not for the inquisitive biologist and the students of the microscopic cosmos, Desmids well might exist unnoticed. For although they have highly intriguing biological features they play no role in water spoilage problems, nor are they important in the food cycle of aquatic animals. Hence they do not attract attention nor invite the condemnations …


Fungi At The Field Station, John W. Baxter Oct 1970

Fungi At The Field Station, John W. Baxter

Field Station Bulletins

The UWM Field Station now has a mycological reference collection, for use in identifying fungi of the area. Botanists and zoologists doing research at the Field Station will find the collection useful. It can also be used by visiting groups who have some interest in identifying the more conspicuous fungi that are likely to be seen during a tour of the area.


Sentiment Changes And Recreation Participation, Perry J. Brown Oct 1970

Sentiment Changes And Recreation Participation, Perry J. Brown

Forest Management Faculty Publications

If participation in recreation activities represents a choice among alternatives, then such discretion may have implications for measuring activity participation. Following is a discussion of the discretionary nature of recreation and the importance of such discretion for use projection which utilizes participation rates. It is proposed that consumer sentiment about the economy at the time participation data are collected is important in evaluating the data and activity projections. The 1960 Outdoor Recreation Resources Review Commission projections indicated that participation in recreation activities would increase by a factor of three from 1960 to 2000 (13). More recent (1965) statistics published by …


Insectivorous Plants In Cedarburg Bog, Peter J. Salamun Apr 1970

Insectivorous Plants In Cedarburg Bog, Peter J. Salamun

Field Station Bulletins

Bogs, with their poorly drained organic soils, high water tables, low mineral content and cool sluggish water, offer unique habitats for a variety of unusual plants of which the insectivorous ones are especially interesting. These plants have one feature that separates them from others-their leaves are capable of attracting, holding and partially digesting insects. Because bogs are difficult to traverse during the warmer months of the year, and the mosquitoes are numerous, many persons have never observed these plants in their native habitats and few professional botanists have studied the nature of their physiological adaptations to this environment. A series …


The Late-Glacial And Post-Glacial History Of The Cedarburg Bog Area, Wisconsin, Norman P. Lasca Apr 1970

The Late-Glacial And Post-Glacial History Of The Cedarburg Bog Area, Wisconsin, Norman P. Lasca

Field Station Bulletins

Continental glaciers moving over Wisconsin four times in the last two million years sculptured the underlying Paleozoic dolomites and limestones in the Cedarburg area and deposited vast amounts of debris on the bedrock surface. Since the retreat of the Wisconsinan ice, about 12,000 years ago, mass-wasting, fluvial activity, and weathering have modified the landscape and produced the topography we see today. The Pleistocene deposits of the Cedarburg area are late Wisconsinan in age, and the earlier history of the area must be inferred from studies done in Southern Wisconsin and the surrounding states. As early as the mid-1800's mention is …


The Stadium Interstate Freeway And Cedarburg Bog, Millicent S. Ficken, Forest Stearns Apr 1970

The Stadium Interstate Freeway And Cedarburg Bog, Millicent S. Ficken, Forest Stearns

Field Station Bulletins

Although the initially favored corridor for the Stadium interstate freeway was adjacent to Cedarburg Bog, the highway department is now favoring a route at least a mile from the Bog. Many different individuals had written highway officials stressing the scientific, educational and recreational value of the Bog. It is appropriate that the highway officials of a state which has been a leader in preserving natural areas for scientific and educational use should show concern with preserving Cedarburg Bog as a wilderness area. A hearing about the proposed route will be held July 10 in Ozaukee County, and testimony will be …


The Fat And Weight Cycle In Wisconsin Juncos, Charles M. Weise Apr 1970

The Fat And Weight Cycle In Wisconsin Juncos, Charles M. Weise

Field Station Bulletins

Our study was aimed at answering three specific questions. First, do wild Juncos in Wisconsin exhibit spring premigratory fat deposition. Second, it has been reported that during the winter, fat deposits and body weights are high during cold periods and lower during warm spells: in other words fat condition is inversely temperature-dependent. Our second objective then was to get large samples of weights and fat conditions under a variety of winter weather conditions in order to test the reality of the inverse temperature-dependence claimed by others. Third, we wanted to investigate the diurnal patterns of fat deposition.


Production Of Aggregating Pheromones In Re-Emerged Parent Females Of The Southern Pine Beetle, Jack E. Coster Jan 1970

Production Of Aggregating Pheromones In Re-Emerged Parent Females Of The Southern Pine Beetle, Jack E. Coster

Faculty Publications

No abstract provided.


Chemical Analyses Of Plant Tissues From The Hubbard Brook Ecosystem In New Hampshire, Gene E. Likens, F. Herbert Bormann Jan 1970

Chemical Analyses Of Plant Tissues From The Hubbard Brook Ecosystem In New Hampshire, Gene E. Likens, F. Herbert Bormann

Yale School of the Environment Bulletin Series

No abstract provided.


Natural Variation In Susceptibility Of Pinus To Neodiprion Sawflies As A Basis For The Development Of A Breeding Scheme For Resistant Trees, Walter R. Henson, Louis C. O'Neil, Francois Mergen Jan 1970

Natural Variation In Susceptibility Of Pinus To Neodiprion Sawflies As A Basis For The Development Of A Breeding Scheme For Resistant Trees, Walter R. Henson, Louis C. O'Neil, Francois Mergen

Yale School of the Environment Bulletin Series

No abstract provided.


Man And His Environment: The Ecological Limits Of Optimism, R. S. Miller, G. M. Woodwell, W. R. Burch, P. A. Jordan, R. L. Means Jan 1970

Man And His Environment: The Ecological Limits Of Optimism, R. S. Miller, G. M. Woodwell, W. R. Burch, P. A. Jordan, R. L. Means

Yale School of the Environment Bulletin Series

No abstract provided.


Supplying Wood Products For More People - A Challenge To The Forest Industry, John A. Segur, F. Bruce Lamb, Basil E. Allen Jan 1970

Supplying Wood Products For More People - A Challenge To The Forest Industry, John A. Segur, F. Bruce Lamb, Basil E. Allen

Yale School of the Environment Bulletin Series

No abstract provided.


Fire Weather : A Guide For Application Of Meteorological Information To Forest Fire Control Operations, Mark J. Schroeder, Charles C. Buck Jan 1970

Fire Weather : A Guide For Application Of Meteorological Information To Forest Fire Control Operations, Mark J. Schroeder, Charles C. Buck

The Bark Beetles, Fuels, and Fire Bibliography

Weather is never static. It is always dynamic. Its interpretation is an art. The art of applying complex information about weather to the equally complex task of wildland fire control cannot be acquired easily-especially not by the mere reading of a book. The environment is in control in wildland firefighting. Free-burning fires are literally nourished by weather elements, atmospheric components, and atmospheric motion. Outguessing mother nature in order to win control is an extremely difficult task. We need to soothe her with understanding. We have attempted to present information in such a way that your daily and seasonal awareness of …


Lucille Vinyard Journal 1970, Lucille Vinyard Jan 1970

Lucille Vinyard Journal 1970, Lucille Vinyard

Lucille Vinyard Journal Collection

No abstract provided.


Relation Of Canopy Area And Volume To Production Of Three Woody Species, James M. Peek Jan 1970

Relation Of Canopy Area And Volume To Production Of Three Woody Species, James M. Peek

Aspen Bibliography

No abstract provided.


Effects Of Spring Burning On Vegetation In Old Partially Cut Spruce-Aspen Stands In East-Central Alberta, A.D. Kiil Jan 1970

Effects Of Spring Burning On Vegetation In Old Partially Cut Spruce-Aspen Stands In East-Central Alberta, A.D. Kiil

Aspen Bibliography

No abstract provided.


World Developments In Increased Forest Resources For The Pulp And Paper Industry, J. L. Keays Jan 1970

World Developments In Increased Forest Resources For The Pulp And Paper Industry, J. L. Keays

Aspen Bibliography

No abstract provided.


Effects Of Phenylmercuric Acetate On The Transpiration And Physiology Of Quaking Aspen, Kenneth O. Higginbotham Jan 1970

Effects Of Phenylmercuric Acetate On The Transpiration And Physiology Of Quaking Aspen, Kenneth O. Higginbotham

Aspen Bibliography

No abstract provided.


Natural Regeneration Of White Spruce Under Spruce-Aspen Shelterwood, B-18a Forest Section, Alberta, J. C. Lees Jan 1970

Natural Regeneration Of White Spruce Under Spruce-Aspen Shelterwood, B-18a Forest Section, Alberta, J. C. Lees

Aspen Bibliography

No abstract provided.


Natural Regeneration Of White Spruce Under Spruce-Aspen Shelterwood, B-18a Forest Section, Alberta, J.C. Lees Jan 1970

Natural Regeneration Of White Spruce Under Spruce-Aspen Shelterwood, B-18a Forest Section, Alberta, J.C. Lees

Aspen Bibliography

No abstract provided.


Techniques For Rooting Aspen Root Sprouts, Miles K. Benson, Delmar E. Schwalbach Jan 1970

Techniques For Rooting Aspen Root Sprouts, Miles K. Benson, Delmar E. Schwalbach

Aspen Bibliography

The Aspen Genetics and Tree Improvement program of the Institute of Paper Chemistry (IPC) has had the problem of vegetatively propagating selected and improved individuals of various Populus species and hybrids for a number of years.


Effect Of Cycloheximide On Hypoxylon Cankers On Aspen, D.H. Brown, S.B. Silberborg Jan 1970

Effect Of Cycloheximide On Hypoxylon Cankers On Aspen, D.H. Brown, S.B. Silberborg

Aspen Bibliography

Direct applications of cycloheximide in fuel oil to Hypoxylon cankers on aspen arrested canker activity and enlargement for 5 years. Tree survival increased with increased concentrations of cycloheximide.


Some Effects Of Prescribed Burning On Jack Pine Reproduction In Northeastern Minnesota, C.E. Ahlgren Jan 1970

Some Effects Of Prescribed Burning On Jack Pine Reproduction In Northeastern Minnesota, C.E. Ahlgren

Aspen Bibliography

No abstract provided.


Foliar Penetration Of Picloram And 2,4-D In Aspen And Balsam Poplar, M.P. Sharma, W.H. Vanden Born Jan 1970

Foliar Penetration Of Picloram And 2,4-D In Aspen And Balsam Poplar, M.P. Sharma, W.H. Vanden Born

Aspen Bibliography

Added surfactant (Atlox 210) at 1% (v/v) and high relative humidity enhanced the penetration of both 4-amino-3,5,6-trichloropicolinic acid (picloram) and (2,4-dichlorophenoxy)acetic acid (2,4-D0 into detached leaves of aspen poplar (Populus tremuloides Michx.).