Open Access. Powered by Scholars. Published by Universities.®

Life Sciences

Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 3751 - 3780 of 3791

Full-Text Articles in Natural Resources and Conservation

The Prairie Naturalist Vol. 3, Nos. 3 And 4. September-December, 1971 Dec 1971

The Prairie Naturalist Vol. 3, Nos. 3 And 4. September-December, 1971

The Prairie Naturalist

EDITORIAL: Badlands-Old and New ▪ Paul B. Kannowski

SEASONAL INVESTIGATIONS OF ALGAE FROM DEVILS LAKE, NORTH DAKOTA ▪ Richard Verch and Dean W. Blinn

THE VASCULAR FLORA OF PEMBINA COUNTY, NORTH DAKOTA ▪ Rays E. Willenbring and William T. Barker

LET'S EAT WILD ▪ Alan M. Cvancara

SURF SCOTER IN NORTH DAKOTA ▪ Harold A. Kantrud

SNOW GOOSE-CANADA GOOSE HYBRIDS ▪ David C. McGlauchlin

NOTES

Cowbird parasitism of an upland plover nest ▪ Kenneth F. Higgins

Birds sighted within one hour from one observation point in Burleigh County, North Dakota ▪ William A. Buresh

Golden-winged warbler in Burleigh County, North …


Report On Water Pollution Problems In Las Vegas Wash And Las Vegas Bay, Environmental Protection Agency Nov 1971

Report On Water Pollution Problems In Las Vegas Wash And Las Vegas Bay, Environmental Protection Agency

Publications (WR)

This report was prepared by the Federal Water- Quality Administration, Pacific Southwest Region, now the Environmental Protection Agency (EPA), Region IX, at the request of the State of Nevada, Department of Health, Welfare, and rehabilitation. In a letter, dated December 5, 1969, this agency asked for technical assistance, as authorized by the Federal Water Pollution Control Act, in developing discharge standards appropriate for Las Vegas Bay, Lake Mead, and the Lower Colorado River. The subsequent study was performed by EPA from January through August, 1970. The establishment of Nevada State Water Quality Standards for these waters will enable responsible officials …


Ua77/1 Western Alumnus, Vol. 40, No. 2, Wku Alumni Relations Oct 1971

Ua77/1 Western Alumnus, Vol. 40, No. 2, Wku Alumni Relations

WKU Administration Documents

Quarterly magazine created for WKU alumni. Regular features are Hilltopics, Sports, Alumni Newsgrams and Notes and In Memoriam. This issue includes:

  • Graduate School (College) is On Its Way
  • Evening Class is Thataway
  • The Hilltopper Hundred to the Rescue
  • ETV - Keep Watching, It's All in Color
  • Student Interns Learn How Government Works
  • Significant Statements: The New Year Begins
  • Good News for Fishermen: Reservoir Research
  • There it Was! Your Homecoming - 1971
  • Performing Arts Illuminate the Campus Scene
  • Discovery 1 - Uncovering the Kentucky of Antiquity
  • Discovery 2 - Reviving the Heritage of Kentucky
  • Discovery 3 - The Intercultural Studies Program …


The Prairie Naturalist Volume 3, No.2. June, 1971 Jun 1971

The Prairie Naturalist Volume 3, No.2. June, 1971

The Prairie Naturalist

EDITORIAL: Environmental Rights ▪ Paul B. Kannowski

RIVER BASINS PLANNING ▪ H. A. Hendrickson

WATER RESOURCE PLANNING GONE AMUCK ▪ Charles H. Stoddard

THE INTERACTION OF CITIZENS' GROUPS AND GOVERNMENT AGENCIES WITH RESPECT TO ENVIRONMENTAL PROBLEMS ▪ Robert L. Burgess

WORDS AND MEANINGS ▪ Paul T. Crary

ENFORCEMENT OF NORTH DAKOTA ENVIRONMENTAL LAWS AND REGULATIONS ▪ Robert E. Beck

BIRDS OBSERVED IN NORTH DAKOTA DURING THE WINTER OF 1970-71 ▪ John T. Lokemoen and Paul E. Springer

STATUS OF CLARK'S NUTCRACKER IN NORTH DAKOTA ▪ Lewis W. Oring and Robert W. Seabloom

WINGED ANTS AS FISH FOOD ▪ Charles H. …


A Conceptual Draft Of A Dynamic Hydro-Biological Model For Lake Mead, L. G. Everett, Bureau Of Reclamation Apr 1971

A Conceptual Draft Of A Dynamic Hydro-Biological Model For Lake Mead, L. G. Everett, Bureau Of Reclamation

Publications (WR)

Food and energy transformation in an aquatic system must be understood in order to develop a simulation approach. This report provides a comprehensive study of an aquatic ecosystem. The objectives of this report are to show: (1) the biological relationships in an aquatic system (2) the role of nutrients in the biological cycle (3) the role of abiotic factors in a limnetic environment (4) the status of the art of "Eutrophication modeling".


The Prairie Naturalist Volume 3, No.1 March, 1971 Mar 1971

The Prairie Naturalist Volume 3, No.1 March, 1971

The Prairie Naturalist

EDITORIAL: One House for Natural Resource Management ▪ Paul B. Kannowski

CHECKLIST OF BIRDS IN NORTH DAKOTA ▪ Robert E. Stewart

ADDITIONAL INFORMATION ON THE WOOD DUCK IN NORTH DAKOTA ▪ Edmund A. Hibbard

NOTES ON DANDELIONS ▪ O. A. Stevens

CHRISTMAS BIRD COUNTS FOR NORTH DAKOTA—1970 ▪ Robert N. Randall

THE EROSION OF ONE OF MAN'S MOST PRECIOUS NATURAL RESOURCES: HIS FREEDOM OF CHOICE ▪ Gordon L. Iseminger

NOTEWORTHY PLANTS OF THE NORTH DAKOTA PRAIRIE COTEAU FOREST ▪ W. Carter Johnson

NOTE — Duck mortality caused by wind ▪ Harold Kantrud


Impoundment Effects On Water Quality As Reflected In Parasitism Of Reservoir Basses, David A. Becker Jan 1971

Impoundment Effects On Water Quality As Reflected In Parasitism Of Reservoir Basses, David A. Becker

Arkansas Water Resources Center Technical Reports

Our aquatic environments are rapidly becoming useless as natural resources through pollution from various sources. It is therefore necessary for us to further understand the various means which relate to this process. The interrelationships between the physico-chemical and biological water qualities undergo marked changes during the ageing of a reservoir. Eutrophication of these impoundments render them rela-tively useless as natural resources. It thus becomes apparent that we must gain further knowledge of these processes if we are to devise methods for proper reservoir management.


Fisheries Report No 9 - The Fauna And Flora Of Monte Bello Islands, A. A. Burbidge Dr Jan 1971

Fisheries Report No 9 - The Fauna And Flora Of Monte Bello Islands, A. A. Burbidge Dr

Fisheries Research Reports

Two visits were made to the Monte Bello Islands in 1970 and 1971.

The aim of the visits was to examine the islands for the presence of native mammals and other fauna, and to explore the possibility of re-establishing fauna now extinct,

The first survey was carried out in conjunction with a more detailed examination of the Dampier Archipelago. The fisheries patrols vessel "Dampier" was used to reach the islands and as a base. Personnel were R. Johnstone (W.A. Museum), E.J. Little and J.D. Harman (crew of the "Dampier"), R.F. Dear and A.A, Burbidge, all from the Department of Fisheries …


Micronutrients And Biological Patterns In Lake Mead, Hasan K. Qashu, Lorne G. Everett, J. S. Carlson, Bureau Of Reclamation Jan 1971

Micronutrients And Biological Patterns In Lake Mead, Hasan K. Qashu, Lorne G. Everett, J. S. Carlson, Bureau Of Reclamation

Publications (WR)

Progressive increases in concentration of dissolved solids in the Colorado River water from Lake Powell to Imperial Dam seem to alter plankton dynamics and biological productivity of the river. Also, changes in biological productivity and micronutrients concentrations occur within the same reservoir. Development of a digital simulation model to predict micronutrients concentrations and biological productivity is necessary for diagnosing changes in plankton population and effluent-carrying capacity of the system. The objectives of the study are: (1) to determine trace metal balance at different locations in Lake Mead, (2) to measure biological productivity and conduct plankton population counts at each sampling …


The Prairie Naturalist Volume 2, Nos. 3 And 4 September–December, 1970 Dec 1970

The Prairie Naturalist Volume 2, Nos. 3 And 4 September–December, 1970

The Prairie Naturalist

EDITORIAL: Ecology and Environmental Education ▪ Keith R. Stamm

PEOPLE IN PERIL ▪ Thomas L. Kimball

MEN IN MAN'S ENVIRONMENT ▪ Robert L. Burgess

ENERGY AND MAN'S ENVIRONMENT ▪ Dale Henegar

MINERALS AND SOILS IN MAN'S ENVIRONMENT ▪ Wilson M. Laird

WATER IN MAN'S ENVIRONMENT ▪ Norman Peterson

THE ATMOSPHERE IN MAN'S ENVIRONMENT ▪ Gene A. Christianson

WHY ENVIRONMENTAL EDUCATION IN THE LIFE SCIENCES? ▪ James R. Reilly

ECOLOGICAL EDUCATION IN THE PHYSICAL SCIENCES ▪ William P. Eastwood

MASS MEDIA AND ENVIRONMENTAL EDUCATION ▪ Richard Palmer

THE JUDGMENT OF THE JACKAL ▪ C. Benson Thomerson

THE ROLE OF COLLEGES AND …


The Prairie Naturalist Volume 2, No.2 June, 1970 Jun 1970

The Prairie Naturalist Volume 2, No.2 June, 1970

The Prairie Naturalist

EDITORIAL: Ecocide on the Sheyenne? ▪ Paul B. Kannowski

NEW RECORDS OF VASCULAR PLANTS IN NORTH DAKOTA ▪ Robert E. Stewart

SOME LOCAL NATIVE PLANT LOSSES AND SOME SAL V AGE ▪ O. A. Stevens

CHRISTMAS BIRD COUNTS IN NORTH DAKOTA ▪ Robert N. Randall

ENVIRONMENTAL DESIGN IN COMMUNITY PLANNING ▪ Cameron Man

DISTRIBUTION OF THE SCIRPUS VALIDUS COMPLEX IN NORTH DAKOTA ▪ Richard L. Ward


Some Wildflowers Of Western Australia, C. F. H. Jenkins, A. S. George Mar 1970

Some Wildflowers Of Western Australia, C. F. H. Jenkins, A. S. George

Bulletins - 3000 - 3999

MUCH recent discussion on conservation has centred around the importance of wild flower reserves and the need for protecting one of thci State's most important tourist attractions. Although less important to visitors than the flowers, many of our wild animals hold equal interest for nature lovers and scientists, and they also need protection.

ALTHOUGH the brilliance and diversity of West Australian wildflowers are widely appreci­ated, the localities where they can best be observed in their natural state are not so well known.

In this article a brief outline is given of the more important districts in the south western part …


The Prairie Naturalist Volume 2, No. 1. March, 1970 Mar 1970

The Prairie Naturalist Volume 2, No. 1. March, 1970

The Prairie Naturalist

EDITORIAL: Speaking of Ecologists ▪ Paul B. Kannowski

NEEDED: AN ETHICAL BASIS FOR ENVIRONMENTAL POLICY ▪ Gordon L. Iseminger

THE POPULATION PARADOX ▪ Gary L. Pearson

THE ENVIRONMENTAL CRISIS—A CALL TO ACTION ▪ Glen A. Sherwood

NORTH DAKOTA—1970 ▪ Philip B. Aus


Some Ecological Relations Of Fairy Shrimps In Alkaline Habitats Of Nebraska, D. B. Mccarraher Jan 1970

Some Ecological Relations Of Fairy Shrimps In Alkaline Habitats Of Nebraska, D. B. Mccarraher

Nebraska Game and Parks Commission: Staff Research Publications

Ecological studies on the distribution of fairy shrimps have been made from 246 sites in the sandhills region of Nebraska. New records for Nebraska have been established for Artemia salina, Branchinecta campestris, B. lindahli, B. mackini and Cyzicus mexicanus. Seasonal populations of shrimp have been located in habitats containing permanent fish populations. Water mineralization was the dominant environmental condition related to the distribution of phyllopods with sodium and potassium compounds predominating in the strongly alkaline lakes. Several of the Artemia lakes were classified as hydroxide sites. Many of the alkaline ponds, where B. lindahli and B. campestris flourish, are …


Fisheries Report No Iv (6) - Report On The Current Status Of Crocodiles In Western Australia, H. Robert Bustard Dr Nov 1969

Fisheries Report No Iv (6) - Report On The Current Status Of Crocodiles In Western Australia, H. Robert Bustard Dr

Fisheries Research Reports

The aim of the survey was fivefold,

(1) to determine the present abundance and composition of saltwater crocodile populations in Western Australia,

(2) to comment on the status of the freshwater crocodile in Western Australia following 7 years of total protection,

(3) to locate study area(s) for detailed work on crocodile biology,

(4) to investigate the feelings of people on the spot (especially shooters or ex-shooters) towards crocodile conservation, and

(5) to investigate law enforcement problems relating to crocodiles


West Midlands Development : Soil Map Used To Group Similar Soils Into Land Use Classes, Department Of Agriculture, Western Australia Jan 1969

West Midlands Development : Soil Map Used To Group Similar Soils Into Land Use Classes, Department Of Agriculture, Western Australia

Journal of the Department of Agriculture, Western Australia, Series 4

Selection of areas for initial treatment is basic to economic development of blocks in the West Midlands.

Obviously, it is best to develop large areas of the most productive "land use classes" first in order to obtain the highest and earliest returns on capital.


Fishery Report Iv (4) - Report On The Barramundi Fishery In Western Australia, N M. Morrissy Jan 1969

Fishery Report Iv (4) - Report On The Barramundi Fishery In Western Australia, N M. Morrissy

Fisheries Research Reports

Barramundi are widely distributed in rivers and estuaries in the semi-tropical and tropical regions of the Indo- Pacific from South China to the Persian Gulf and along the coast of northern Australia. The limiting factors to the distribution appear to be temperature and salinity.


Honey Plants In Western Australia, F. G. Smith Jan 1969

Honey Plants In Western Australia, F. G. Smith

Bulletins - 3000 - 3999

Successful honey production depends, among other things on a good knowledge of the plants which produce nectar.

Every apiarist needs to know which plants are of importance to honey-bees, where those plants occur, and when they flower. He also needs to know which plants produce nectar which will result in the production of good quality honey, and which produce unpalatable or unmarketable honey. To maintain the strength of his bee colonies he also needs to know which plants produce nutritious pollen.

The object of this bulletin is to provide the basic information on these subjects in the main beekeeping areas …


Wildflowers Of The Stirling Range, Alexander S. George Jan 1969

Wildflowers Of The Stirling Range, Alexander S. George

Journal of the Department of Agriculture, Western Australia, Series 4

TWO hundred miles south-east of Perth, the Stirling Range rises abruptly from the surrounding plain. About forty miles long, it is a line of semi-isolated hills, rather than a continuous block.

There are many intriguing plants of diverse colour and form. Well over 400 species are known from the Range. A number of these are found no-where else, and some are restricted to one mountain.


The Prairie Naturalist Volume 1, No.4. December 1969 Dec 1968

The Prairie Naturalist Volume 1, No.4. December 1969

The Prairie Naturalist

EDITORIAL: Restoring Beauty to the Human Environment ▪ Paul B. Kannowski

A REQUIEM FOR THE PRAIRIE ▪ Hugh H. Iltis

BIRDING IN MY BACK YARD ▪ Mrs. George A. Anderson

OCCURRENCE OF THE CECROPIA AND ROCKY MOUNTAIN SILK MOTHS IN SOUTHWESTERN NORTH DAKOTA ▪ James Oberfoell


Biological Studies Of Selected Reaches And Tributaries Of The Colorado River, Nelson Thomas, Federal Water Pollution Control Administration Oct 1968

Biological Studies Of Selected Reaches And Tributaries Of The Colorado River, Nelson Thomas, Federal Water Pollution Control Administration

Publications (WR)

This report fulfills the request of the Colorado River Basin Project, Denver, Colorado, to determine the effects of municipal and industrial wastes on the aquatic life in selected waters of the Colorado River Basin. These studies were conducted with the assistance of personnel from the Colorado River Basin Project.


The Prairie Naturalist Volume 1, No. 3. September, 1969 Sep 1968

The Prairie Naturalist Volume 1, No. 3. September, 1969

The Prairie Naturalist

EDITORIAL: A VOICE FOR CONSERVATION ▪ Paul B. Kannowski

CHRISTMAS BIRD COUNTS FOR NORTH DAKOTA—1968 ▪ Robert N. Randall

SOME ENVIRONMENTAL MANAGEMENT PROBLEMS AND PROPOSED SOLUTIONS ▪ Laurence R. Jahn

SOME PLANTS OF WESTERN MINNESOTA ▪ O. A. Stevens

MORTALITY OF MIGRATORY BIRDS AT GRAND FORKS, NORTH DAKOTA FOLLOWING A MOSQUITO CONTROL OPERATION IN MAY, 1969 ▪ Robert W. Seabloom, Lewis W. Oring and James R. Reilly

NESTING OF THE UPLAND PLOVER ON THE MISSOURI COTEAU ▪ K. F. Higgins, H. F. Duebbert and R. B. Oetting

NOTE

Albino sparrows discovered at Hazen, North Dakota ▪ Larry L. Kruckenberg and …


The Prairie Naturalist Volume 1, No. 2. May, 1969 May 1968

The Prairie Naturalist Volume 1, No. 2. May, 1969

The Prairie Naturalist

EDITORIAL: North Dakota's Naturalist-at-Large ▪ Paul B. Kannowski

WETLAND VEGETATION OF THE TURTLE MOUNTAINS, NORTH DAKOTA ▪ Robert L. Burgess and Dennis T. Disrud

RAPID METHOD OF FILTRATION OF MARSH WATERS ▪ V. A. Adomaitis and J. A. Shoesmith

NOTES

Additional distribution records of the false map turtle and the short-horned lizard in North Dakota ▪ Dennis J. Gemmell

Summer record of the snowy owl in North Dakota ▪ Donald R. Johnson

Long-billed curlews in LaMoure County, North Dakota ▪ Gary L. Krapu


The Prairie Naturalist Volume 1. No.1. March 1968 Mar 1968

The Prairie Naturalist Volume 1. No.1. March 1968

The Prairie Naturalist

EDITORIAL: Another Milestone ▪ John T. Lokemoen

NESTING OF THE COMMON SNIPE IN NORTH DAKOTA ▪ Robert E. Stewart and Harold A. Kantrud

SCIENCE WRITING — A PROBLEM ▪ Soren O. Kolstoe

INSECTICIDES: A DOUBLE-EDGED SWORD ▪ Richard D. Urban

NOTES

Why I like the Badlands ▪ Wayne Hecker

White-faced ibis in McIntosh County, North Dakota ▪ Harold F. Duebbert

Cinnamon teal observations in North Dakota ▪ A. T. Klett and John T. Lokemoen

Trumpeter swan in Kidder County, North Dakota ▪ Lewis M. Cowardin and James C. Bartonek

Specimen records of greater scaup ▪ Charles W. Dane and Harold …


Development, Verification, And Use Of Methods To Model Chemical And Thermal Processes Lakes Mead And Powell, Bureau Of Reclamation Jul 1966

Development, Verification, And Use Of Methods To Model Chemical And Thermal Processes Lakes Mead And Powell, Bureau Of Reclamation

Publications (WR)

PURPOSE The purpose of the proposed research is to quantify the effects that Lakes Mead and Powell have on the salinity in the Colorado River system, and to evaluate changes that cap be made to the operating system of the reservoirs (within legal/institutional constraints) to enhance salt precipitation and/or minimize evaporation within the reservoirs. The effect of any changes (i.e., selective withdrawal uses, pumped storage, etc.) on reservoir evaporation could also be evaluated with a goal of minimizing evaporation. This will be accomplished through the development of a mathematical model of the reservoirs as described below. BACKGROUND Two major problems …


Ua3/3/1 Comments On Activities At The Western Kentucky State College Farm, Dallas Wheat Feb 1966

Ua3/3/1 Comments On Activities At The Western Kentucky State College Farm, Dallas Wheat

WKU Administration Documents

Report on how the WKU Farm was used in courses on agricultural engineering and soil and water conservation.


Fisheries Report No 3 - Western Australian Freshwater Fisheries, Donald D. Francois Jan 1966

Fisheries Report No 3 - Western Australian Freshwater Fisheries, Donald D. Francois

Fisheries Research Reports

Most of the Australian States have a comprehensive system of inland waterways, Western Australia, however, is in a less fortunate position. True, the maps of the State show many rivers, but in much of the southern, more populous part, with no summer rain and no winter snow, the majority are virtually a chain of waterholes during the long summer months. At the same time, in a relatively small section in the south-west corner, there is a series of permanent streams flowing through what was originally dense forest. But apart from the three indigenous freshwater crustaceans, the marron (Cherax tenuimanus), the …


Ultrasonic Tracking Of Migratory Fishes With An Internal Tag, Ross M. Horrall, H. F. Henderson, A. D. Hasler Sep 1965

Ultrasonic Tracking Of Migratory Fishes With An Internal Tag, Ross M. Horrall, H. F. Henderson, A. D. Hasler

School of Natural Resources: Faculty Publications

First paragraph:

A small ultrasonic tag, 9 mm by 40 mm in size, has been developed by members of the fish orientation group at the University of Wisconsin. The tag emits a continuous signal at approximately 65 kc/sec. The signal is received via a directional hydrophone and a high quality communications receiver. Tracking ranges of up to 1 km have been obtained. The placement of the tag is internal: either into the stomach or into the body cavity of the fish. The tags and tracking equipment have been successfully employed in studies on the open water movements and orientation of …


Water Chemistry Survey Of Boulder Basin, Lake Mead, P. R. Tramutt, Bureau Of Reclamation Jun 1965

Water Chemistry Survey Of Boulder Basin, Lake Mead, P. R. Tramutt, Bureau Of Reclamation

Publications (WR)

The survey results indicate that the impoundment of water behind Hoover Dam has not adversely affected the dissolved oxygen (DO) content and that water quality and DO content were uniform regardless of depth. The study made in April-May 1964 will provide water quality data of Lake Mead prior to releases from Lake Powell as a basis for evaluating Lake Powell's effect on water quality and limnology of Lake Mead. The performance of a DO analyzer was tested and found unsatisfactory at depths below 150 ft. Parameters tested by standard chemical analyses of water samples in the Denver Laboratory and by …


Amphibians And Reptiles Of Vigo County, Indiana, David Rubin May 1965

Amphibians And Reptiles Of Vigo County, Indiana, David Rubin

All-Inclusive List of Electronic Theses and Dissertations

Vigo County, Indiana is an extremely interesting area for herpetological studyo Its geographical location allows for the interplay of faunal elements from east, west, north, and south (Smith and minton, 1957) and its physiography permits investigation of the relations of terrain and glacial geology to herpetofaunal distribution. Blatchley (1891, 1899) published two papers on the amphibians and reptiles of the county and Allyn and Shockley (1938) reported on the county's salamandersa The present paper has the following objectives: to determine which species occur or have recently occurred in Vigo County; to determine amphibian and reptile distribution in the county; to …