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Ecology and Evolutionary Biology

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Articles 1351 - 1380 of 1383

Full-Text Articles in Genetics and Genomics

Aspen Management Problems Of The Lake States, Z.A. Zasada Jun 1950

Aspen Management Problems Of The Lake States, Z.A. Zasada

Aspen Bibliography

No abstract provided.


How To Control Undesirable Trees And Shrubs, Maurice W. Day May 1950

How To Control Undesirable Trees And Shrubs, Maurice W. Day

Aspen Bibliography

No abstract provided.


New Birds From The State Of San Luis Potosi And The Tuxtla Mountains Of Veracruz, Mexico, George H. Lowery Jr., Robert J. Newman Feb 1949

New Birds From The State Of San Luis Potosi And The Tuxtla Mountains Of Veracruz, Mexico, George H. Lowery Jr., Robert J. Newman

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

No abstract provided.


Aspen Defiberization And Refining Of Product, Robert Craig Jr. Mar 1948

Aspen Defiberization And Refining Of Product, Robert Craig Jr.

Aspen Bibliography

Because of the great demand for wood fiber and because there is an abundance of aspen available1/ for this purpose, its conversion into a usable fiberized material offers possibilities. It also affords an outlet for low-quality bolts developed in any aspen logging operation or from land of poor quality.


Aspen Properties And Uses, Zigmond A. Zasada May 1947

Aspen Properties And Uses, Zigmond A. Zasada

Aspen Bibliography

Because of the large demand for lumber during the last 10 years, and particularly during the war period, aspen has entered many new fields of use. At present there is widespread interest in the possibilities of building new industries and extending the life of old ones by increased use of aspen. Many people are interested in becoming familiar with this wood. This report has been prepared to give general information on the properties and present uses of aspen and also to help in correcting some of the existing erroneous ideas about this wood.


A Distributional Survey Of The Birds Of Sonora, Mexico, A. J. Van Rossem Oct 1945

A Distributional Survey Of The Birds Of Sonora, Mexico, A. J. Van Rossem

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

No abstract provided.


A Second Revision Of The Seaside Sparrows, Ludlow Griscom Dec 1944

A Second Revision Of The Seaside Sparrows, Ludlow Griscom

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

No abstract provided.


Geographic Variation Of Bewick Wrens In The Eastern United States, John W. Aldrich Dec 1944

Geographic Variation Of Bewick Wrens In The Eastern United States, John W. Aldrich

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

No abstract provided.


Geograpical Variation In The Red-Bellied Woodpecker In The Southeastern United States, Thomas D. Burleigh, George H. Lowery Jr. Dec 1944

Geograpical Variation In The Red-Bellied Woodpecker In The Southeastern United States, Thomas D. Burleigh, George H. Lowery Jr.

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

No abstract provided.


The Bird Life Of The Gulf Coast Region Of Mississippi, Thomas D. Burleigh Dec 1944

The Bird Life Of The Gulf Coast Region Of Mississippi, Thomas D. Burleigh

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

No abstract provided.


Seeding Grass On Deteriorated Aspen Range, A. Perry Plummer, George Stewart Oct 1944

Seeding Grass On Deteriorated Aspen Range, A. Perry Plummer, George Stewart

Aspen Bibliography

The herbaceous undercover on much of the aspen range in the Intermountain region is badly deteriorated. These areas, naturally highly productive, when revegetated can contribute greatly towards a much needed supply of range forage. One of the major obstacles to successful seeding has been the difficulty of getting the seeds covered with soil since both standing and fallen trees interfere with the use of drills, harrows, or other machinery. In the search for methods to overcome this difficulty, it was found that for open aspen stands the covering of seeds is unnecessary when the right precautions are taken in other …


A New Race Of Brown-Headed Chickadee From Northern Washington, Alden H. Miller Nov 1943

A New Race Of Brown-Headed Chickadee From Northern Washington, Alden H. Miller

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

No abstract provided.


Birds Of Linares And Galeana, Nuevo León, Mexico, George Miksch Sutton, Olin Sewall Pettingill Jr. Nov 1943

Birds Of Linares And Galeana, Nuevo León, Mexico, George Miksch Sutton, Olin Sewall Pettingill Jr.

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

No abstract provided.


The Yellow-Crowned Night Heron Of Socorro Island, Mexico, A. J. Van Rossem Nov 1943

The Yellow-Crowned Night Heron Of Socorro Island, Mexico, A. J. Van Rossem

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

No abstract provided.


Check-List Of The Mammals Of Louisiana And Adjacent Waters, George H. Lowery Jr. Nov 1943

Check-List Of The Mammals Of Louisiana And Adjacent Waters, George H. Lowery Jr.

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

No abstract provided.


How To Reseed Utah Range Lands, A. Perry Plummer, Richard M. Hurd, C. Kenneth Pearse Jun 1943

How To Reseed Utah Range Lands, A. Perry Plummer, Richard M. Hurd, C. Kenneth Pearse

Aspen Bibliography

Additional low cost forage is urgently needed by Utah's range livestock industry. Seeding of depleted tracts in accordance with recently developed methods and principles will help supply this forage and is entirely feasible. Where the value of the increased forage will repay the cost of planting, careful reseeding of selected sites is fully justified.

The important part that reseeding can play in restoring ranges to their former capacity has been demonstrated. Although satisfactory results can be obtained on many sites during average or better years, much more study is needed to insure consistent success in abnormal years and to extend …


A New Barn Swallow From The Gulf Coast Of The United States, Thomas D. Burleigh Mar 1942

A New Barn Swallow From The Gulf Coast Of The United States, Thomas D. Burleigh

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

No abstract provided.


An Inland Race Of Sterna Albifrons, Thomas D. Burleigh, George H. Lowery Jr. Mar 1942

An Inland Race Of Sterna Albifrons, Thomas D. Burleigh, George H. Lowery Jr.

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

No abstract provided.


Notes On The Birds Of Southeastern Coahuila, Thomas D. Burleigh, George H. Lowery Jr. Mar 1942

Notes On The Birds Of Southeastern Coahuila, Thomas D. Burleigh, George H. Lowery Jr.

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

No abstract provided.


A Revision Of The Fox Squirrels Of The Lower Mississippi Valley And Texas, George H. Lowery Jr., William B. Davis Mar 1942

A Revision Of The Fox Squirrels Of The Lower Mississippi Valley And Texas, George H. Lowery Jr., William B. Davis

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

No abstract provided.


The Effect Of Fomes Ignarius On Populus Tremuloides In The Gallatin National Forest Of Montana, Marvin F. Kelly Jun 1941

The Effect Of Fomes Ignarius On Populus Tremuloides In The Gallatin National Forest Of Montana, Marvin F. Kelly

Aspen Bibliography

No abstract provided.


Birds Of The Guadalupe Mountain Region Of Western Texas, Thomas D. Burleigh, George H. Lowery Jr. Aug 1940

Birds Of The Guadalupe Mountain Region Of Western Texas, Thomas D. Burleigh, George H. Lowery Jr.

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

No abstract provided.


Mammals Of The Guadalupe Mountains Of Western Texas, William B. Davis Jul 1940

Mammals Of The Guadalupe Mountains Of Western Texas, William B. Davis

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

No abstract provided.


Description Of Two New Birds From Western Texas, Thomas D. Burleigh, George H. Lowery Jr. Nov 1939

Description Of Two New Birds From Western Texas, Thomas D. Burleigh, George H. Lowery Jr.

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

No abstract provided.


A New Kangaroo Rat Of The Dipodomys Ordii Group From The Big Bend Region Of Texas, Monroe D. Bryant Nov 1939

A New Kangaroo Rat Of The Dipodomys Ordii Group From The Big Bend Region Of Texas, Monroe D. Bryant

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

No abstract provided.


Geographic Races Of The Kangaroo Rat, Dipodomys Microps, E. Raymond Hall, Frederick H. Dale Nov 1939

Geographic Races Of The Kangaroo Rat, Dipodomys Microps, E. Raymond Hall, Frederick H. Dale

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

No abstract provided.


Weather And Plant-Development Data As Determinants Of Grazing Periods On Mountain Range, David F. Costello, Raymond Price May 1939

Weather And Plant-Development Data As Determinants Of Grazing Periods On Mountain Range, David F. Costello, Raymond Price

Aspen Bibliography

Fundamental in economical range-resource management is the determination of proper grazing periods. It is of prime importance to be able to establish a date in the spring when the range has produced sufficient feed to keep livestock in thrifty condition, when it is reasonably safe from excessive trampling and packing of the soil, and when the more important key forage plants have attained sufficient development to withstand grazing use. Such opening dates, as well as the time to defer and rotate grazing and to remove livestock from the range, are dependent in part on the prevailing weather conditions and on …


A List Of Birds Observed On The 1938 Semple Expedition To Northeastern México, George M. Sutton, Thomas D. Burleigh Apr 1939

A List Of Birds Observed On The 1938 Semple Expedition To Northeastern México, George M. Sutton, Thomas D. Burleigh

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

No abstract provided.


A New Peromyscus From Texas, William B. Davis Feb 1939

A New Peromyscus From Texas, William B. Davis

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

No abstract provided.


A New Grackle Of The Cassidix Mexicanus Group, George H. Lowery Jr. May 1938

A New Grackle Of The Cassidix Mexicanus Group, George H. Lowery Jr.

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

No abstract provided.