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Full-Text Articles in Life Sciences

Study To Save Block Island, Designer's News, May 19,1969, Students Of Risd, Risd Archives May 1969

Study To Save Block Island, Designer's News, May 19,1969, Students Of Risd, Risd Archives

Ecology and Environment

RISD Landscape Architecture Study to Save Block Island Article from Designer's News, May 19, 1969 student newspaper.


Saltland Pastures, C V. Malcolm Jan 1969

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.


Stomatopod Crustacea Of The Western Atlantic, Raymond B. Manning Jan 1969

Stomatopod Crustacea Of The Western Atlantic, Raymond B. Manning

Studies in Tropical Oceanography

No abstract provided.


Shed Lambing In The Esperance Environment, T Marshall, F. F. Dixon Jan 1969

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.


Chemical Ploughing, Geoffrey A. Pearce Jan 1969

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.


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.


Simulation Of The Growth Of Even-Aged Stands Of White Spruce, Kenneth J. Mitchell Jan 1969

Simulation Of The Growth Of Even-Aged Stands Of White Spruce, Kenneth J. Mitchell

Yale School of the Environment Bulletin Series

No abstract provided.


Wood Formation And The Concept Of Wood Quality, Philip R. Larson Jan 1969

Wood Formation And The Concept Of Wood Quality, Philip R. Larson

Yale School of the Environment Bulletin Series

No abstract provided.


On Temperature And Heat Flow In Tree Stems, Lee Pierce Herrington Jan 1969

On Temperature And Heat Flow In Tree Stems, Lee Pierce Herrington

Yale School of the Environment Bulletin Series

No abstract provided.


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 Effect Of A Large Reservoir On Local Government Revenue And Expenditure, Clyde T. Bates Jan 1969

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 …


Dolichopodidae (Diptera) And Braconidae (Hymenoptera) Of Curlew Valley, G. F. Knowlton, W.J. Hanson, G.E. Bohart Jan 1969

Dolichopodidae (Diptera) And Braconidae (Hymenoptera) Of Curlew Valley, G. F. Knowlton, W.J. Hanson, G.E. Bohart

Memorandum

No abstract provided.


Pasture Improvement In South Western Australia, J W. Malcolm Jan 1969

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.


Promising Results On West Kimberley Pindan Country, A L. Payne Jan 1969

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.


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 …


Water Storage Has Not Kept Pace With Stock Numbers : South Stirling Survey Finding, A L. Prout Jan 1969

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.


History Of The State Vermin Barrier Fences, Formerly Known As Rabbit Proof Fences, J S. Crawford Jan 1969

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


Pastures For The Pastoral Areas, D G. Wilcox, K. Fitzgerald Jan 1969

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.


Pasture Establishment In The Wheatbelt, M L. Poole Jan 1969

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 …