Digital Commons Network^™

Demographic Of Termite Colonies As Related To Various Environmental Factors: Population Dynamics And Role In The Detritus Cycle, W. L. Nutting, M. I. Haverty, J. P. Lafage

Memorandum

No abstract provided.

Effect Of Soil Water Potential On Soil Moisture Absorption, Transpiration Rate, Plant Water Potential And Growth For Artemisia Tridentata, G. S. Campbell, G. S. Harris

Progress reports

No abstract provided.

Demography Of Termite Colonies As Related To Various Environmental Factors: Population Dynamics And Role In The Detritus Cycle, W. L. Nutting, M. I. Haverty, J. P. Lafage

Progress reports

No abstract provided.

How To Make A Natural Resources Inventory, Community Natural Resources Inventory Project

Maine Collection

A Handbook How to Make a Natural Resources Inventory for Your Community

Prepared by: James F. Connors, Sterling Dow III & Dean B. Bennett

Community Natural Resources Inventory Project (Title I, Higher Education Act), The University of Maine at Portland - Gorham (Project Sponsor) and The Maine Association of Conservation Commissions (Project Co-Sponsor), 1975.

"This handbook is published as a result of a grant from the U.S. Office of Education, Department of Health, Education and Welfare under the Higher Education Act, Title I. No official endorsement by the U.S. Office of Education should be inferred."

Contents: Preface / Introduction / …

Water Infiltration Under Desert Condition, D. D. Evans, S. Nnaji, T. W. Sammis, G. Hansen

Memorandum

No abstract provided.

Plant Growth And Water Transfer Interactive Processes Under Desert Conditions, D. D. Evans, T. W. Sammis

Memorandum

No abstract provided.

Effects Of Temperature And Moisture On Productivity Of Oryzopsis Hymenoides, L. C. Pearson

Memorandum

No abstract provided.

Factors Affecting Seed Reserves In The Soil Of A Desert Ecosystem, R. M. Chew, J. F. Nelson

Memorandum

No abstract provided.

Classification And Quantification Of Invertebrate Activity And The Role Of Invertebrates In Nitrogen Processing In Plants, Litter And Soil In Curlew Valley, P. R. Sferra

Memorandum

No abstract provided.

Effect Of Soil Water Potential On Soil Moisture Absorption, Transpiration Rate, Plant Water Potential And Growth For Artemisia Tridentata, G. S. Campbell, G. S. Harris

Memorandum

No abstract provided.

Plant Food Preferences Of Two Sympatric Rodents And Their Potential Impact On A Great Basin Shrub Community, E.L. Becker Ii, D.F. Balph

Progress reports

No abstract provided.

Measurement Of Evapotranspiration With A Monolith Lysimeter, D. W. Young, D. D. Evans, T. W. Sammis, C. Constant

Progress reports

No abstract provided.

Conceptualization And Early Development Of A Water Response Ecosystem Model, D. C. Wilkin, P. W. Lommen, J. V. Robinson, G. S. Innis

Progress reports

No abstract provided.

Data Search For Aquatic Model, J. Perry Ii, G. W. Minshall

Progress reports

No abstract provided.

Further Development Of A Stream Ecosystem Model, J. H. Wlosinski, G. W. Minshall

Progress reports

No abstract provided.

Decomposition And Mineralization In An Artemisia Tridentata Community In Northern Nevada, P. L. Comanor

Progress reports

No abstract provided.

Water Infiltration Under Desert Conditions, D. D. Evans, S. Nnaji, T. W. Sammis, G. Hansen

Progress reports

No abstract provided.

Classification And Quantification Of Invertebrate Activity And The Role Of Invertebrates In Nitrogen Processing In Plants, Litter And Soil In Curlew Valley, P. R. Sferra

Progress reports

No abstract provided.

Effects Of Temperature And Moisture On Productivity Of Oryzopsis Hymenoides, L. C. Pearson

Progress reports

No abstract provided.

Gas Exchange, Translocation, Root Growth And Soil Respiration Of Great Basin Plants, M. M. Caldwell, E. J. Depuit, O. A. Fernandez, H. H. Wiebe, L. B. Camp, R. S. Holthausen, H. Neuber

Progress reports

No abstract provided.

Factors Affecting Seed Reserves In The Soil Of A Desert Ecosystem, R. M. Chew, J. F. Nelson

Progress reports

No abstract provided.

Results And Evaluation Of An Aerial Creel Survey Technique On Lake Sharpe, South Dakota, Bruce R. Schmidt

Electronic Theses and Dissertations

A creel survey, consisting of two independent surveys, was conducted on Lake Sharpe, South Dakota from May, 1973, through May, 1974. An aerial fisherman count was used to estimate fishing pressure and an angler interview survey was used to estimate catch rates, mean party size, mean fisherman day, and residence of the anglers. The results of the two surveys were combined to estimate harvest. The separate surveys were combined to estimate harvest. The separate surveys allowed optimum stratification and allocation of sampling effort for each. Estimated fishing pressure was 32,643 fisherman-hours, ±9.60% at the 95% confidence level, and the total …

Threatened Fishes Survey, Steve Schainost

Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts

The advance of civilization frequently results in activities which cause changes in the native wildlife species. The economy of the state of Nebraska has submitted its streams to the effects of intensive agricultural and irrigation developments, stream channelization, and dams. The responses of different fish species to these different activities vary but they always occur and are usually unnoticed unless of large magnitude.

Relatively little has been done with regard to noting the responses of Nebraska’s stream fishes to the activities of man. Previous workers have frequently worked within a basin rather than statewide. Jordan and Meek (1885), Jordan and …

Effect Of Feedlots On Water Quality, Ronald D. Cheetham, Alan J. Holmes, David Borresen

Journal of the Minnesota Academy of Science

The effect of feedlot runoff on water quality was examined. Samples were collected from river feedlots and offshore from lake feedlots and compared with samples from appropriate control sites. Bacterial contamination, as measured by the total coliform test over two successive summers, exhibited significant variation between feedlot and control sites. Coliform levels at lake sites adjacent to feedlots were double the levels at control sites; while in river systems average coliform levels downstream from feedlots were approximately 17 times the upstream controls.

Plating Wastewater Management, Earl Kenneth Ossorio

Retrospective Theses and Dissertations

A study was made of existing methods of management, treatment and disposal of water and wastewater effluents at a large aerospace facility (Martin Marietta Aerospace) in Central Florida. Water consumption and handling were evaluated, with emphasis being placed on the handling of plating wastes, since they are the main contributor of industrial wastewater pollutants at the facility. The flow, storage, and treatment of the plating wastes were studied. Literature concerning plating wastes was surveyed to determine the latest "state of the art" on handling of plating pollutants. Then, the "state of the art" processes were compared with the existing processes …

A Field Technique Measuring Virus Decay And Potential Aerosol Hazard From Wastewater Sprinkler Irrigation, Michael F. Torpy, Robert A. Gearheart, J. Clifton Spendlove, Rex S. Spendlove

Reports

The increased use of domestic wastewater for irrigation purposes has stimulated a growing practice of sprinkler irrigating from oxidation ponds and other domestic wastewaters. Aerosols generated from these sprinkler irrigation systems may contain potentially hazardous pathogens. Subsequently, the aerosols can contain infective viruses which can be carried through the air to surrounding populations. Thus, a public health hazard can be created by sprinkler irrigating domestic wastewater. This study is an investigation of a means by which the virus decay rate of viruses in aerosols and the potentials hazard of sprinkler irrigation aerosol clouds may be examined. A means of injection …

A Technique For Predicting The Aquatic Ecosystem Response To Weather Modification, Eugene K. Israelsen, David R. Bernard, Thomas M. Twedt, Henry M. Runke

Reports

In the past, considerable effort has been spent on the development of techniques for increasing precipitation from a given cloud formation. However, little attention has been given to identifying and evaluating the impacts of cloud seeing activities on the aquatic ecosystems within the affected areas. The objective of this study was to apply the simulation technique to predict the impacts of cloud seeing on the aquatic ecosystem within the area subject to weather modification. A small mountain watershed near Logan, Utah, was selected for the study. Measurements were made of the significant parameter levels under current conditions. A hydrologic and …

A Study Of Alternative Methods To Modernize Water Institutions And Eliminate Problems Of Multiple Jurisdiction And Conflicting Objectives, Frank W. Haws

Reports

No abstract provided.

Modeling Phytoplankton Blooms In A Stratified Embayment, William J. Grenney

Reports

A mathematical model was developed to simulate the nitrogen limited growth dynamics of phytoplankton in a stratefied embayment. The representation of biological growth dynamics includes consideration of intracellular nutrient storage as well as the effects of temperature and light intensity. Several competing species can be represented simultaneously. Model hydrodynamics represent the effects of vertical mixing in the water column on the physical distribution of nutrients and phytoplankton. Sinking velocities of the cells are also included. The model was applied to Auke Bay, Alaska, and model responses are compared to data observed during the spring and summer of 1967.

Nutrient Dynamics And Gas Production In Aquatic Ecosystems: The Effects And Utilization Of Mercury And Nitrogen In Sediment-Water Microcosms, D. B. Porcella, V. D. Adams, P. A. Cowan, S. Austrheim-Smith, W F. Holmes, J. Hill Iv, W. J. Grenney, E. J. Middlebrooks

Reports

Sixteen sediment-water microcosms designed to allow complete gas, liquid, and solid mass balances of gases, nutrients, and mercury were studies under dark conditions or varying light intensity for a period of 189 days. Results indicated that the microcosm technique is a very sensitive method of analyzing microbial dynamics in sediment water systems. Gas quantity and composition changes were easy to monitor and were especially sensitive to light and nutrient variations. Nitrogen fixation occurred in all lighted systems (blue-green algae nitrogen fixers, Anabaena, and others) and was adequate to insure that no nitrogen limitation occurred even though nitrogen limitation was imposed …