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Human Impacts To Minnesota Wetlands, Carol A. Johnston

Journal of the Minnesota Academy of Science

ABSTRACT-Minnesota's 3.6 million ha of wetlands have been impacted by a variety of human activities, including agricultural drainage, urbanization, water control, and nonpoint source pollution. More than half of Minnesota's wetlands have been destroyed since the first European settlers arrived, an average loss of about 35,600 ha/yr. Drainage for agriculture is the major cause of wetland loss in Minnesota, particularly in southern Minnesota and the Red River Valley. In addition to impacting wetlands directly, wetland drainage affects downstream areas by increasing flood flows, and releasing sediment and nutrients. Urban development and highway construction affect a smaller proportion of Minnesota's wetlands, …

Umm To You: Summer 1987, University Of Minnesota, Morris Alumni Association

UMM to You (1987-1996)

Contents Include: UMM Celebrates New Growth In the Summer of '87 -- From the Desk Of: -- Class Notes -- Chancellor's Choice -- Dan Fuchs Named New Development Director -- 9th Annual Jazz Fest Brings Back Alumni Jazz Ensemble -- UMM Adopts New General Education Requirements Strengthens Liberal Arts Emphasis -- UMM Concert Choir Plans Summer Tour -- Underwood Retires as Chair; Ahern Named Successor -- UMM Faculty Corner -- Dennis Clausen Publishes Texts -- Kelly Retires, Fohl Named New Athletic Director -- Stan Zweifel Joins UMM as Head Football Coach -- New UMM Alumni Network Project -- Events Calendar …

Abstracts Of Papers To Be Presented At The 53rd Annual Spring Meeting Of The Academy

Journal of the Minnesota Academy of Science

No abstract provided.

Utilization And Land Cover Examined In Two Blue Earth County Streams, Mark Gamm, Robert James Childs

Journal of the Minnesota Academy of Science

Examining soil mapping units of the United States Agriculture department's Soil Conservation Service for comparison with land usage In the Blue Earth River valley, this study found that seven of 56 units in the valley accounted for 76.5 percent of the study terrain. Agricultural use or non-use of the land units matched established . designations.

The Le Sueur River flows for about 40 miles within Blue Earth county of south ·central Minnesota. Land cover in the valley, as determined by stereoscopic examination of aerial photographs, shows forest on 65 percent, agriculture on 22 percent, and other cover on 13 percent …

Use Of Peat Hydrolysate For Cultivation Of The Yeast, Candida Utilis, Jeffrey S. Denny, Allen G. Good

Journal of the Minnesota Academy of Science

No abstract provided.

Land-Cover Changes In A River Valley In Blue Earth County, Minnesota, 1938-1974, Corrie Schaffer Cowley

Journal of the Minnesota Academy of Science

The boundary of the Blue Earth River Valley was determined by stereoscopic viewing of 1938-39 aerial photographs. The same boundary was then drawn on corresponding 1974 photographs. All area within the river valley was assigned to one of four land-cover. Comparison of 1938-39 to 1974 shows a decrease of 19 percent in river area, an increase of one percent in row crop area, an increase of 52 percent in tree area, and a decrease of 45 percent in scrub area.

Presettlement Vegetation Of The Nemadji River Basin, Rudy G. Koch, Larry A. Kapustka, Lorraine M. Koch

Journal of the Minnesota Academy of Science

Features of presettlement vegetation of the Nemadji River watershed were determined from surveying records covering three counties in two states. Data from 3,346 trees indicated major distributional differences in portions of the watershed. White pine (Pinus strobus L.) was the predominant species of the Glacial Lake Duluth Basin, while Tamarack (Larix laricina (Du Roi, K. Koch) characterized the surrounding area of glacial till. In addition, forests occupying ravines were, in general, composed of larger individuals and exhibited less evidence of reproduction than trees in adjacent uplands, which might suggest less erosional disturbance than is evident today.

Morone Chrysops (Rafinesque): The White Bass In Lake Superior, Jay T. Hatch, Byron F. Clark

Journal of the Minnesota Academy of Science

On August 18, 1975, a young-of-the-year white bass, Morone chrysops was beach seined from Lake Superior at Marquette, Michigan. This is the first reported occurrence of the species in Lake Superior or its tributaries since an unverifiable sighting about 1880. Most likely the species has been recently introduced or has migrated through the St. Mary's River from Lake Huron or Lake Michigan.

Aoa: A Personal Approach To Environmental Education, Michael J. Naylon

Journal of the Minnesota Academy of Science

MESFI (Minnesota Environmental Sciences Foundation, Inc.) is field testing materials for a community-based environmental course of study. Program emphasis includes clarification of values and examination of logistics necessary to the maintenance of communities in order that they might meet social needs. The approach is individualized, providing a means of studying the impact of one's lifestyle on the environment. Emphasis is placed on development of case studies, small group discussion, and cooperative problem-solving. Use of graphics as a form of summary is stressed. The Area of Affect (AOA) is a method of mapping participant activity, range or environmental impact within the …

An Analysis Of Cynicism Within Law Enforcement, Ervin G. Bublitz

Journal of the Minnesota Academy of Science

An investigation and analysis of the concept of cynicism as part of a social process involving other sociological variables within two law enforcement agencies was undertaken. The major theoretical contention of this study was that within the law enforcement setting one consequence of employing certain organizational control mechanisms has been an accompanying generation of social strain relative to such control mechanisms. The Niederhoffer scale was employed as an objective measure of cynicism. Extended interviews were conducted with those who scored high on the cynicism scale. Two major sources of social strain were indicated by the interview responses: (a) the area …

Observation Of Physiological Changes During Transcendental Meditation, Ron Royer, Edwin J. Nordheim

Journal of the Minnesota Academy of Science

Techniques of yoga have been associated with alterations in physiology, but until recently there has been only haphazard and uncontrolled research . Since 1970, information has been gathered which suggests that the practice of Transcendental Meditation (TM), a derivative of yoga, significantly affects changes in several physiological areas. This study observed changes in breath rate and peripheral circulation before, during, and after the practice of TM. Results showed a significant decrease in breath rate and changes in circulation patterns in the hand and forehead of subjects.

'T. C. Mits' And The Utility Of Science, Evan B. Hazard

Journal of the Minnesota Academy of Science

The general public, as well as many leaders of our society tend to view science as descriptive and to value science mainly for "practical" applications. Although technological implications are important, science cannot legitimately be considered primarily descriptive. Science is a creative activity, involving human judgment, and can most fruitfully be thought of as metaphor or play. The practical value of science, of the liberal arts in general, and of academe is that they provide the playful approach to experience which is a necessary basis for successful planning and action, and which makes us human.

A Basis For Legislation To Encourage Conservation Of Automobile Energy Fuel, James Pinson Ludwig

Journal of the Minnesota Academy of Science

A detailed basis for legislation to institute a system of rating automobiles according to their energy costs is proposed, together with mechanisms to tax wasteful uses of energy associated with cars. A complementary rebate system for owners of very efficient vehicles also is proposed. This proposal is advanced instead of systems of increasing energy supplies or gasoline rationing to control consumer demand.

Pollution From Sewage Loading In River And Lakes Downstream From Bemidji, James Ludwig

Journal of the Minnesota Academy of Science

The deleterious effects and downstream distribution of pollutants from domestic sewage discharged at Bemidji, Minnesota, are examined with reference lo parameters for pollution as defined by the state's Pollution Control Agency (PCA). Periodic overloading of the resort city's sewage treatment plant also is considered, along with problems pertinent to a community upstream of popular vacation facilities on a lake and river system.

Teaching Strategies For Integrating Man And Land, Michael J. Naylon

Journal of the Minnesota Academy of Science

No abstract provided.

Front Matter

Journal of the Minnesota Academy of Science

No abstract provided.