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Articles 30721 - 30750 of 30825
Full-Text Articles in Physical Sciences and Mathematics
A Survey Of Farm-Game Habitat Restoration Programs In Fifteen States, William H. Marshall
A Survey Of Farm-Game Habitat Restoration Programs In Fifteen States, William H. Marshall
Other Publications in Wildlife Management
For at least twenty years the thinking of wildlife managers has been directed toward the importance of habitat in producing surplus game populations for hunting. The decline or disappearance of game populations - often over considerable areas - following changes in habitat brought about by agricultural, urban, or industrial developments demonstrates clearly the effects of the elimination of desirable habitat. Suitable habitat is basic to the survival of wildlife. Many field observations and experiences, as well as specific data from research, validate this conclusion. Where a harvestable surplus of game cannot be maintained because of changes made by man in …
Aerial Survey Township Areas, Willford L. Miller
Aerial Survey Township Areas, Willford L. Miller
Other Publications in Wildlife Management
In the year 1946, two townships of 36 square miles each were selected for experimental work in aerial censusing. The primary objective was to devise a technique for obtaining complete counts of upland game birds on limited areas during the winter months.
The aerial survey proved to be very satisfactory when snow conditions are right. All available cover must be well filled with snow, with very few bare spots in fields or other parts of the area. The birds tend to congregate on such bare places where it is very difficult to see them from the plane.
In 1951 a …
The Birds Of Riding Mountain National Park, Manitoba, Canada, J. Dewey Soper
The Birds Of Riding Mountain National Park, Manitoba, Canada, J. Dewey Soper
Other Publications in Wildlife Management
Riding Mountain National Park is located in southwestern Manitoba within easy reach of important centres of population. From park headquarters at Wasagaming, it is only 140 miles southeast to Winnipeg, 57 miles south to Brandon, 35 miles north to Dauphin, and 102 miles to the International Boundary. Most of the surrounding country is devoted to agriculture.
The total park area approximates 1,148 square miles. Except for restricted tourist areas, it remains in a primitive condition, with unspoiled forests, prairies, streams, and lakes.
Up to the time the area was set aside as a park in 1929, comparatively little was known …
To Rural And Star Route Carriers, Levi L. Mohler
To Rural And Star Route Carriers, Levi L. Mohler
Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts
Summary of your 1953 Winter Records
As we have mentioned before, an important item from the winter counts is the ratio of cock pheasants to hen pheasants after the season has ended. Your winter records showed 88 cocks per 100 hens for the state as a whole. In extreme southeastern Nebraska (where pheasants are scarce), and for central and western Nebraska, you recorded more cocks than hens. For most of the eastern third of the state (where most of the pheasant hunting is done) you recorded two cocks for every three hens. This reflects the removal of more cocks by …
Measuring Waterfowl Habitat- Population Changes From Aerial Photos, Harvey W. Miller
Measuring Waterfowl Habitat- Population Changes From Aerial Photos, Harvey W. Miller
Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts
A survey was conducted in 1953 to determine the feasibility of using aerial photography to measure the trends in available waterfowl habitat in the Nebraska Sandhills. This pilot survey included 96 one-square-mile sections systematically distributed over the area to give a 0.49 percent sampling rate.
The basic waterfo\o1l habitat types apparent on the aerial photos of these sections were identified and measured with a planimeter and map measure. These ascertained totals were then projected to obtain the estimated total of each habitat type in the study area.
A statistical analysis of the survey revealed that it would be necessary to …
Odor Report (1952), Walter A. Lawrance
Analytical Data(1952), Walter A. Lawrance
Analytical Data(1952), Walter A. Lawrance
Walter Lawrance Papers
No abstract provided.
Addition Of Sodium Nitrate (1952), Walter A. Lawrance
Addition Of Sodium Nitrate (1952), Walter A. Lawrance
Walter Lawrance Papers
No abstract provided.
Supplement To Odor Report (1952), Walter A. Lawrance
Supplement To Odor Report (1952), Walter A. Lawrance
Walter Lawrance Papers
No abstract provided.
Press Reports (1952), Walter A. Lawrance
Waterfowl Breeding Ground Survey, 1952 In Nebraska, Harvey W. Miller
Waterfowl Breeding Ground Survey, 1952 In Nebraska, Harvey W. Miller
Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts
The Nebraska Breeding Ground Survey has been conducted for the fifth consecutive year. This survey is aimed at providing indicators to the waterfowl population through measuring the seasonal and year b,y year trends in breeding numbers and production success. The survey recognizes the sandhill region as the most important waterfowl-producing area of Nebraska and therefore, studies have been largely concentrated there.
1952- Pheasant Brood Observations (For 1952), Levi L. Mohler
1952- Pheasant Brood Observations (For 1952), Levi L. Mohler
Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts
Pheasant Brood Observations
Ten broods have been reported to date by Grasmick, Burney, Bunney, Bowers, Owen, Schultz, Jensen and Cassell. Twelve other men have reported their first two broods.
Translation Of Mexican Game Law, Milton J. Linder, Rae Kaplan
Translation Of Mexican Game Law, Milton J. Linder, Rae Kaplan
Other Publications in Wildlife Management
Chapter 1
Chapter 2
Chapter 3
Chapter 4
Chapter 5
Chapter 6
Chapter 7
Chapter 8
Chapter 9
Chapter 10
Chapter 11
Transitories
Information to the Foreings Hunters in Mexico
Translation of Order appearing in the Diario Official (September 4, 1954)
Table
Effect Of Fire On Forest Soils In The Pine Barren Region Of New Jersey, Paul Yoder Burns
Effect Of Fire On Forest Soils In The Pine Barren Region Of New Jersey, Paul Yoder Burns
Yale School of the Environment Bulletin Series
No abstract provided.
Great Salt Lake Beach Plan, Planning Commission; Salt Lake County, Ut
Great Salt Lake Beach Plan, Planning Commission; Salt Lake County, Ut
Elusive Documents
No abstract provided.
Audio Census Of Some Wisconsin Game Birds, Donald R. Thompson, Charles W. Lemke
Audio Census Of Some Wisconsin Game Birds, Donald R. Thompson, Charles W. Lemke
Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts
Audio censuses of Wisconsin game birds were commenced in 1948, and now include the bobwhite quail, the pheasant and the ruffed grouse, in the order in which censuses were introduced.
Briefly, audio censuses are based on the characteristic sounds given by the male of the species concerned during the breeding season. An observer strategically located at a station, or stations in the field tallies the number of individuals calling, and/or the number of calls heard during a given time period.
In Wisconsin, only the transect method is used, with the observer following a given route and making listening stops of …
Odor Report (1951), Walter A. Lawrance
Supplement To Odor Report (1951), Walter A. Lawrance
Supplement To Odor Report (1951), Walter A. Lawrance
Walter Lawrance Papers
No abstract provided.
Addition Of Sodium Nitrate (1951), Walter A. Lawrance
Addition Of Sodium Nitrate (1951), Walter A. Lawrance
Walter Lawrance Papers
No abstract provided.
Press Reports (1951), Walter A. Lawrance
Analytical Data (1951), Walter A. Lawrance
Analytical Data (1951), Walter A. Lawrance
Walter Lawrance Papers
No abstract provided.
The Upland Game And Migratory Waterfowl Harvest, Russell W. Stuart
The Upland Game And Migratory Waterfowl Harvest, Russell W. Stuart
Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts
This report presents the results of data gathered by questionnaire from a random group of North Dakota license holders during the 1951 season and a report from 130 non-resident license holders who voluntarily filled out and returned a card attached to the non-resident license. The two sets of data will be treated separately in the report.
Lagoon Data (1950), Walter A. Lawrance
Supplement To Odor Report (1950), Walter A. Lawrance
Supplement To Odor Report (1950), Walter A. Lawrance
Walter Lawrance Papers
No abstract provided.
Odor Report (1950), Walter Lawrance
Sulphite Pulp Production (1950), Walter A. Lawrance
Sulphite Pulp Production (1950), Walter A. Lawrance
Walter Lawrance Papers
No abstract provided.
Analytical Data (1950), Walter Lawrance
Press Reports (1950), Walter A. Lawrance
Addition Of Sodium Nitrate (1950), Walter A. Lawrance
Addition Of Sodium Nitrate (1950), Walter A. Lawrance
Walter Lawrance Papers
No abstract provided.
A Subsurface Study Of The Pleistocene Deposits In Kearney County And Adjoining Parts Of Adams, Franklin, And Webster Counties, Vincent H. Dreeszen
A Subsurface Study Of The Pleistocene Deposits In Kearney County And Adjoining Parts Of Adams, Franklin, And Webster Counties, Vincent H. Dreeszen
School of Natural Resources: Dissertations, Theses, and Student Research
No abstract provided.