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Articles 11971 - 12000 of 12142
Full-Text Articles in Life Sciences
Promising Results On West Kimberley Pindan Country, A L. Payne
Promising Results On West Kimberley Pindan Country, A L. Payne
Journal of the Department of Agriculture, Western Australia, Series 4
IN the 22 to 28 inch rainfall belt of the West Kimberley area of Western Australia are extensive areas of what is locally known as "pindan" country.
The term "pindan" refers to a light red or yellow sandy soil type supporting scattered Eucalypts, sparse-dense wattle scrub and grasses such as curly spinifex, ribbon grass and native sorghum.
Fishery Report Iv (4) - Report On The Barramundi Fishery In Western Australia, N M. Morrissy
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.
Water Storage Has Not Kept Pace With Stock Numbers : South Stirling Survey Finding, A L. Prout
Water Storage Has Not Kept Pace With Stock Numbers : South Stirling Survey Finding, A L. Prout
Journal of the Department of Agriculture, Western Australia, Series 4
RESULTS of a survey on water storage capacity in the South Stirlings area indicate that farm water storage has not kept pace with increased clearing and stock numbers.
This has resulted in many farmers requesting advice on water conservation projects following two consecutive years of low rainfall runoff.
Shed Lambing In The Esperance Environment, T Marshall, F. F. Dixon
Shed Lambing In The Esperance Environment, T Marshall, F. F. Dixon
Journal of the Department of Agriculture, Western Australia, Series 4
Neonatal lamb mortality is often high in Western Australia and losses as high as 33 per cent, have been recorded on private properties in the Esperance area. Surveys by Western Australian Department of Agriculture officers have indicated that more than threequarters of such lamb deaths occur after birth. About half these deaths result from the combined effects of weather and mismothering.
Work in Victoria has indicated that lamb mortality may be reduced by intensive lambing systems such as shedding and this trial was established to see if shedding could reduce lamb mortality in the Esperance environment.
Honey Plants In Western Australia, F. G. Smith
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 …
Wood Formation And The Concept Of Wood Quality, Philip R. Larson
Wood Formation And The Concept Of Wood Quality, Philip R. Larson
Yale School of the Environment Bulletin Series
No abstract provided.
Pasture Establishment In The Wheatbelt, M L. Poole
Pasture Establishment In The Wheatbelt, M L. Poole
Journal of the Department of Agriculture, Western Australia, Series 4
The value of legume based wheatbelt pastures is so great that considerable care is warranted during their establishment. Without such care patchy establishment or even complete failure is likely to occur.
IN THE WHEATBELT too many farmers still put less effort into their seeding of pasture species than their seeding of crops.
This may be because both compete for the farmer's time in the busy seeding period and it is the cereal crop which possesses the obvious cash value.
However, the total value of a good pasture has to be assessed over a period of several years because of its …
Pasture Improvement In South Western Australia, J W. Malcolm
Pasture Improvement In South Western Australia, J W. Malcolm
Journal of the Department of Agriculture, Western Australia, Series 4
"There is no doubt that Australia's enhanced prosperity in the last 30 years has been dependent in no small measure on the use of legume-based pastures." E. M. Hutron, June, 1968. *
THE LAST 30 years have seen an increased interest in pasture improvement which has transformed much of Western Australia. Large areas have been sown to new and improved pasture species—as a result productivity of both livestock and cereal enterprises has risen.
Wildflowers Of The Stirling Range, Alexander S. George
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.
Pastures For The Pastoral Areas, D G. Wilcox, K. Fitzgerald
Pastures For The Pastoral Areas, D G. Wilcox, K. Fitzgerald
Journal of the Department of Agriculture, Western Australia, Series 4
The pastoral areas lie generally outside the zone where cultivated crops are grown.
The rainfall is erratic and the basic pastures for sheep and cattle consist of native plants.
In some favoured areas however, and in particular situations, sown pasture species are becoming increasingly important.
Chemical Ploughing, Geoffrey A. Pearce
Chemical Ploughing, Geoffrey A. Pearce
Journal of the Department of Agriculture, Western Australia, Series 4
PROGRESS in the field of chemical weed control has been spectacular in recent years. One field that is attracting interest is the idea of replacing cultivation with chemical sprays.
Saltland Pastures, C V. Malcolm
Saltland Pastures, C V. Malcolm
Journal of the Department of Agriculture, Western Australia, Series 4
FOLLOWING THE DEVELOPMENT of Agriculture in Western Australia considerable areas of highly productive land have become salt affected to the degree that normal crops and pastures cannot be grown.*
However, species and establishment methods are available which can bring at least some of this land back into production.
The Effect Of A Large Reservoir On Local Government Revenue And Expenditure, Clyde T. Bates
The Effect Of A Large Reservoir On Local Government Revenue And Expenditure, Clyde T. Bates
KWRRI Research Reports
Development of a large multi-purpose reservoir within the area of their jurisdiction may affect property ta.x revenue and expenditure of county governments and school districts. Privately owned land sold to a federally sponsored reservoir is not subject to property taxes because of the doctrine of intergovernmental immunity. Local officials often assume that this loss of assessment will reduce their tax revenue and thereby their fiscal ability to provide an acceptable level of government services. They may also expect the influx of construction workers or the disruption of existing facilities to increase the cost of providing these services. The study approaches …
Simulation Of The Growth Of Even-Aged Stands Of White Spruce, Kenneth J. Mitchell
Simulation Of The Growth Of Even-Aged Stands Of White Spruce, Kenneth J. Mitchell
Yale School of the Environment Bulletin Series
No abstract provided.
On Temperature And Heat Flow In Tree Stems, Lee Pierce Herrington
On Temperature And Heat Flow In Tree Stems, Lee Pierce Herrington
Yale School of the Environment Bulletin Series
No abstract provided.
History Of The State Vermin Barrier Fences, Formerly Known As Rabbit Proof Fences, J S. Crawford
History Of The State Vermin Barrier Fences, Formerly Known As Rabbit Proof Fences, J S. Crawford
Research Reports
There is evidence of rabbits arriving in Australia as far back as 1788, and it is well known that others were liberated on islands around the coast, including some off the coast of Western Australia. However, they remained localised and it is now generally accepted that the rabbits which did spread originated from a small shipment of the wild type brought on the Clipper “Lightning” in 1859. They were released on “Barwon Park”, the property of Thomas Austin, near Geelong in Victoria, and within three years, had reached pest proportions
The Prairie Naturalist Volume 1, No.4. December 1969
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
Bulletin No 3609 - Land Development In The South Eastern Wheatbelt, G T. Halpin, P. Nelson
Bulletin No 3609 - Land Development In The South Eastern Wheatbelt, G T. Halpin, P. Nelson
Bulletins - 3000 - 3999
Interest in the development of light lands in the south-eastern wheatbelt was spurred by the many ex-servicemen seeking farms after the 1939-45 World War.
Previous attempts to develop this area had been frustrated by poor crop yields, and by the poor carrying capacity of those volunteer pastures which developed on cleared land.
Research into reasons for the poor crop results was begun in 1948-49 with trials sown by Messrs Smith and Halpin between Borden and Lake Grace. The results clearly showed the important role played by copper and zinc in successful crop growth. Since then, field trials have been conducted …
Biological Studies Of Selected Reaches And Tributaries Of The Colorado River, Nelson Thomas, Federal Water Pollution Control Administration
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
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
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
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 …
The Systematics Of Sympatric Species In West Indian Spatangoids: A Revision Of The Genera Brissopsis, Plethotaenia, Paleopneustes, And Saviniaster, Richard H. Chesher
The Systematics Of Sympatric Species In West Indian Spatangoids: A Revision Of The Genera Brissopsis, Plethotaenia, Paleopneustes, And Saviniaster, Richard H. Chesher
Studies in Tropical Oceanography
No abstract provided.
Biological Aspects Of Heat Pollution, Theodore Olson
Biological Aspects Of Heat Pollution, Theodore Olson
Journal of the Minnesota Academy of Science
The importance of temperature as an environmental factor has long been recognized by the ecologist, and its special impact upon the aquatic ecosystem has been of interest to aquatic biologists since they first began to observe interactions between living things and the physical environment. Interest in water temperatures as an environmental factor has recently become more widespread; and one aspect of the phenomenon, namely "thermal pollution," has attracted special attention.
West Midlands Development : Farm Planning, G W. Spencer
West Midlands Development : Farm Planning, G W. Spencer
Journal of the Department of Agriculture, Western Australia, Series 4
FARM planning relates to the development and sub-division of a property in such a way that it is possible to obtain the safest, most efficient, and most practical use of every acre of land.
The Certified Strains Of Subterranean Clover : Their Origin, Potential Use And Identification, B J. Quinlivan, C. M. Francis, M. L. Poole
The Certified Strains Of Subterranean Clover : Their Origin, Potential Use And Identification, B J. Quinlivan, C. M. Francis, M. L. Poole
Journal of the Department of Agriculture, Western Australia, Series 4
SUBTERRANEAN CLOVER originated in the countries surrounding the Mediterranean Sea and in parts of Western Europe.
Therefore it is not surprising that it grows well in the agricultural districts of Western Australia, for these regions have a typically Mediterranean climate with cool wet winters and hot dry summers.
Wheat In Development Programmes For New Esperance Farmers, R J. Doyle, G. D. Oliver
Wheat In Development Programmes For New Esperance Farmers, R J. Doyle, G. D. Oliver
Journal of the Department of Agriculture, Western Australia, Series 4
IN the December, 1967, issue of the Journal of Agriculture, we reported on five development budgets for the Esperance region.
The aim of the exercise was to find out if a new settler concentrating on sheep, with $20,000 available for development after acquisition of land, could make a reasonable living for himself and his family while developing his farm.
West Midlands Development : Development Techniques, Department Of Agriculture, Western Australia
West Midlands Development : Development Techniques, Department Of Agriculture, Western Australia
Journal of the Department of Agriculture, Western Australia, Series 4
Most clearing in the West Midlands is carried out by chaining, though the method chosen will depend on the country being cleared and on the resources of the farmer.
Entering The Egg Industry With Laying Cages, W Ward
Entering The Egg Industry With Laying Cages, W Ward
Journal of the Department of Agriculture, Western Australia, Series 4
DEPARTMENT of Agriculture Bulletin 3579, "Entering the Egg Industry with Laying Cages", by W. Ward, examines various aspects of the cage system of housing laying hens.
This system is by far the most popular method of housing layers, with 90 per cent, of new farms using cages and many daep litter farms now converting to cages.
Space Requirements For Pullets And Layers On Litter, A H. Lean
Space Requirements For Pullets And Layers On Litter, A H. Lean
Journal of the Department of Agriculture, Western Australia, Series 4
UNEVEN growth, cannibalism, weakened resistance to disease, unsanitary conditions and poor production commonly arise from failure to provide sufficient floor, feed and watering space for pullets and layers.