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Articles 1321 - 1350 of 1387

Full-Text Articles in Ecology and Evolutionary Biology

Soil Moisture Recharge In Stands Of Quaking Aspen And Gambel Oak In Central Utah, James L. Boynton Jan 1968

Soil Moisture Recharge In Stands Of Quaking Aspen And Gambel Oak In Central Utah, James L. Boynton

Aspen Bibliography

No abstract provided.


Ninth Random Sample Laying Test, 1965-66, Department Of Agriculture, Western Australia Jan 1967

Ninth Random Sample Laying Test, 1965-66, Department Of Agriculture, Western Australia

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

NINTH RANDOM SAMPLE LAYING TEST, 1965-66

POULTRY RESEARCH STATION, WEMBLEY

FINAL REPORT TO 500 DAYS


Tenth Random Sample Laying Test, 1966-67 : Cages, Department Of Agriculture, Western Australia Jan 1967

Tenth Random Sample Laying Test, 1966-67 : Cages, Department Of Agriculture, Western Australia

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

TENTH RANDOM SAMPLE LAYING TEST, 1966-67 - CAGES

POULTRY RESEARCH STATION, WEMBLEY

SECOND PROGRESSIVE REPORT TO 26th FEBRUARY, 1967

Average age of birds 215.5 days or 30 weeks and 6 days.


Special Field Days For Merino Breeders, Department Of Agriculture, Western Australia Jan 1967

Special Field Days For Merino Breeders, Department Of Agriculture, Western Australia

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

More than 200 Merino stud breeders attended special stud breeding and fertility field days arranged for them by the Department of Agriculture recently.

Breeders attending represented some 40 per cent of the State's Merino studs.


Manipulation Of Water Use In An Aspen Forest, John D. Schultz, George B. Coltharp, George E. Hart, Jr., Michael Zan Jan 1967

Manipulation Of Water Use In An Aspen Forest, John D. Schultz, George B. Coltharp, George E. Hart, Jr., Michael Zan

Aspen Bibliography

No abstract provided.


Tenth Random Sample Laying Test, 1966-67 : Litter, Department Of Agriculture, Western Australia Jan 1967

Tenth Random Sample Laying Test, 1966-67 : Litter, Department Of Agriculture, Western Australia

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

TENTH RANDOM SAMPLE LAYING TEST, 1966-67 - LITTER

POULTRY RESEARCH STATION, WEMBLEY

SECOND PROGRESSIVE REPORT TO 26th FEBRUARY,1967

Average age of birds 215.5 days or 30 weeks and 6 days.


Competition And Natural Selection Among Laboratory And Naturally Occurring Populations Of Drosophila Melanogaster, John M. Connor Jan 1967

Competition And Natural Selection Among Laboratory And Naturally Occurring Populations Of Drosophila Melanogaster, John M. Connor

Masters Theses

No abstract provided.


Geographic Variation In Middle American Parrots Of The Amazona Ochrocephala Complex, Burt L. Monroe Jr., Thomas R. Howell Dec 1966

Geographic Variation In Middle American Parrots Of The Amazona Ochrocephala Complex, Burt L. Monroe Jr., Thomas R. Howell

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.


Influence Of Fire On Aspen, K. W. Horton, E. J. Hopkins Jan 1966

Influence Of Fire On Aspen, K. W. Horton, E. J. Hopkins

Aspen Bibliography

No abstract provided.


Review Of Silvicultural Research: White Spruce And Trembling Aspen Cover Types, Mixedwood Forest Section, Boreal Forest Region, Alberta-Saskatchewan-Manitoba, J. M. Jarvis, G. A. Steneker, R. M. Waldron, J. C. Lees Jan 1966

Review Of Silvicultural Research: White Spruce And Trembling Aspen Cover Types, Mixedwood Forest Section, Boreal Forest Region, Alberta-Saskatchewan-Manitoba, J. M. Jarvis, G. A. Steneker, R. M. Waldron, J. C. Lees

Aspen Bibliography

The Department of Forestry has been carrying on silvicultural research in the white spruce (Picea glauca (Moench) Voss) and trembling aspen (Populus tremuloides Michx.) cover types in the Mixedwood Forest Section of Alberta, Saskatchewan and Manitoba for about 40 years. Because of the needs of industry most of this research has been focused on spruce, and only as small portion on aspen. Much of the research is concerned with basic problems and the findings in one area may be applied directly or with minor modification throughout the entire Mixedwood Forest Section. Only a minor part of the total …


Two New Colubrid Snakes Of The Genus Rhadinaea From Southern Mexico, Douglas A. Rossman Nov 1965

Two New Colubrid Snakes Of The Genus Rhadinaea From Southern Mexico, Douglas A. Rossman

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.


A New Species Of Cacicus (Aves: Icteridae) From Peru, George H. Lowery Jr., John P. O'Neill Nov 1965

A New Species Of Cacicus (Aves: Icteridae) From Peru, George H. Lowery Jr., John P. O'Neill

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.


Two New Subspecies Of Birds From Oaxaca, Mexico, Laurence C. Binford Nov 1965

Two New Subspecies Of Birds From Oaxaca, Mexico, Laurence C. Binford

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.


The Nomenclature Of The Red-Winged Blackbird (Agelaius Phoeniceus) Of South-Central Mexico, Robert W. Dickerman Nov 1965

The Nomenclature Of The Red-Winged Blackbird (Agelaius Phoeniceus) Of South-Central Mexico, Robert W. Dickerman

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.


Aspen-Elk Relationships On The Northern Yellowstone Winter Range, William J. Barmore Jr. Apr 1965

Aspen-Elk Relationships On The Northern Yellowstone Winter Range, William J. Barmore Jr.

Aspen Bibliography

No abstract provided.


Cacodylic Acid As A Silvicide, Maurice W. Day Feb 1965

Cacodylic Acid As A Silvicide, Maurice W. Day

Aspen Bibliography

This report deals with the effectiveness of cacodylic acid (dimethylarsenic acid) as a silvicide for undesirable trees. Cacodylic acid has been used successfully as an herbicide for the destruction of grasses and weeds. Experimental work with this material was begun during the 1963 field season, and continued during 1964, to permit complete evaluation of the results. It appears that cacodylic acid has considerable potential as a silvicide.


Aspen Snag Yields Record Bitterbrush Seed Cache, Edward R. Schneegas Jan 1965

Aspen Snag Yields Record Bitterbrush Seed Cache, Edward R. Schneegas

Aspen Bibliography

No abstract provided.


Notes On The Avian Genus Arremonops With Description Of A New Subspecies From Honduras, Burt L. Monroe Jr. Dec 1963

Notes On The Avian Genus Arremonops With Description Of A New Subspecies From Honduras, Burt L. Monroe Jr.

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.


Relationships And Taxonomic Status Of The North American Natricine Snake Genera Liodytes, Regina, And Clonophis, Douglas A. Rossman Dec 1963

Relationships And Taxonomic Status Of The North American Natricine Snake Genera Liodytes, Regina, And Clonophis, Douglas A. Rossman

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.


A Revision Of The Lampornis Viridipallens Complex (Aves: Trochilidae), Burt L. Monroe Jr. Dec 1963

A Revision Of The Lampornis Viridipallens Complex (Aves: Trochilidae), Burt L. Monroe Jr.

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.


A New Race Of Centurus Aurifrons (Aves: Picidae) From British Honduras, Stephen M. Russell Dec 1963

A New Race Of Centurus Aurifrons (Aves: Picidae) From British Honduras, Stephen M. Russell

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.


A New Carolina Wren (Aves: Troglodytidae) From Southern Mexico, George H. Lowery Jr., Delwyn G. Berrett Dec 1963

A New Carolina Wren (Aves: Troglodytidae) From Southern Mexico, George H. Lowery Jr., Delwyn G. Berrett

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.


Three New Subspecies Of Birds From Honduras, Burt L. Monroe Jr. Dec 1963

Three New Subspecies Of Birds From Honduras, Burt L. Monroe Jr.

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.


Volume Tables For Aspen In Colorado, Geraldine Peterson Aug 1961

Volume Tables For Aspen In Colorado, Geraldine Peterson

Aspen Bibliography

No abstract provided.


Bee Farming : Maintaining Productive Stock, R S. Coleman Jan 1961

Bee Farming : Maintaining Productive Stock, R S. Coleman

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

EVERY bee hive must be a productive unit, headed by a young vigorous queen, to to make sure of the greatest possible return from capital invested in the commercial apiary.


Grasshoppers And Locusts In Western Australia, Clee Francis Howard Jenkins Jan 1960

Grasshoppers And Locusts In Western Australia, Clee Francis Howard Jenkins

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

GRASSHOPPERS and locusts are among the most ancient enemies of the farmer, for they figured prominently in Biblical times, and periodically throughout the ages have devastated crops in all parts of the world.


The Romney Marsh, J A. Mallett Jan 1960

The Romney Marsh, J A. Mallett

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

THE Romney Marsh, sometimes known as the Kent, is the most popular of the British longwoel sheep breeds used in Western Australia.

Rams of this breed are widely used for mating with Merino ewes, the crossbred female progeny of the matings being in demand for subsequent mating with Downs-type rams to produce export Iambs.


Some Aspects Of Regeneration Silviculture In Spruce-Aspen Stands In Alberta, L. A. Smithers Jul 1959

Some Aspects Of Regeneration Silviculture In Spruce-Aspen Stands In Alberta, L. A. Smithers

Aspen Bibliography

Surveys of spruce-aspen stands in Northern Alberta have shown that natural regeneration of white spruce is generally a failure on areas which have been logged but not burned (Candy 1951).


Growth Of Alberta White Spruce After Release From Aspen Competition, L. A. Smithers, G Ontkean Jan 1959

Growth Of Alberta White Spruce After Release From Aspen Competition, L. A. Smithers, G Ontkean

Aspen Bibliography

At the present time spruce sawtimber is the most important single commodity produced from the forests of Alberta.


Aspen Leaf Blight In The Intermountain Region, James L. Mielke Mar 1957

Aspen Leaf Blight In The Intermountain Region, James L. Mielke

Aspen Bibliography

No abstract provided.