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Articles 301 - 330 of 387

Full-Text Articles in Genetics and Genomics

Aspen-Birch Forest, Donald Rakstad, John R. Probst Jan 1979

Aspen-Birch Forest, Donald Rakstad, John R. Probst

Aspen Bibliography

No abstract provided.


Aspen Clearcut (8-Year), Donald Rakstad, John R. Probst Jan 1979

Aspen Clearcut (8-Year), Donald Rakstad, John R. Probst

Aspen Bibliography

This report includes a breeding-bird census, a list of dominant plant species, and brief physiographic data for a 8-year old aspen clearcut on the Chippewa National Forest, Michigan.


Aspen Forest (50-Year), Connie J. Pearson, John R. Probst Jan 1979

Aspen Forest (50-Year), Connie J. Pearson, John R. Probst

Aspen Bibliography

No abstract provided.


Aerial Stand Volume Table For Plains Cottonwood In Eastern Colorado, Carleton B. Edminster, James R. Getter Jan 1979

Aerial Stand Volume Table For Plains Cottonwood In Eastern Colorado, Carleton B. Edminster, James R. Getter

Aspen Bibliography

No abstract provided.


Long-Term Changes In Cottonwoods On A Grazed And An Ungrazed Plains Bottomland In Northeastern Colorado, Glenn L. Crouch Jan 1979

Long-Term Changes In Cottonwoods On A Grazed And An Ungrazed Plains Bottomland In Northeastern Colorado, Glenn L. Crouch

Aspen Bibliography

No abstract provided.


Fire-Decay: Interactive Roles Regulating Wood Accumulation And Soil Development In The Northern Rocky Mountains, A. E. Harvey, M. J. Larsen, M. F. Jurgensen Jan 1979

Fire-Decay: Interactive Roles Regulating Wood Accumulation And Soil Development In The Northern Rocky Mountains, A. E. Harvey, M. J. Larsen, M. F. Jurgensen

Aspen Bibliography

Decay and fire play interactive roles in recycling wood and other organic materials in forest ecosystems, and contribute to the development of high quality soils in the Northern Rocky Mountains. Decayed wood, charcoal, and other decomposed organic matter are the principal media for ectomycorrhizal and nonsymbiotic nitrogen fixing microbes. The activities of these microbes are critical to the growth of forest trees. The balance between decay and fire, as it affects the amount, distribution, and type of organic matter, controls the ability of forest soils to support the growth of trees.


Estimating The Volume Of Hardwood Crowns, Stems, And The Total Tree, Douglas R. Phillips, Noel D. Cost Jan 1979

Estimating The Volume Of Hardwood Crowns, Stems, And The Total Tree, Douglas R. Phillips, Noel D. Cost

Aspen Bibliography

No abstract provided.


Preliminary Classification For The Coniferous Forest And Woodland Series Of Arizona And New Mexico, Earle F. Layser, Gilbert H. Schubert Jan 1979

Preliminary Classification For The Coniferous Forest And Woodland Series Of Arizona And New Mexico, Earle F. Layser, Gilbert H. Schubert

Aspen Bibliography

The vegetation of southwestern United States, because of this geographic area's climatic patterns and extreme ranges in topographic relief, is complex and diverse.


Equations Predicting Primary Productivity (Biomass) Of Trees, Shrubs And Lesser Vegetation Based On Current Literature, W. Stanek, D. State Jan 1979

Equations Predicting Primary Productivity (Biomass) Of Trees, Shrubs And Lesser Vegetation Based On Current Literature, W. Stanek, D. State

Aspen Bibliography

No abstract provided.


Feeding Preference Of Penned White-Tailed Deer For Hybrid Popular Clones, Richard L. Verch Jan 1979

Feeding Preference Of Penned White-Tailed Deer For Hybrid Popular Clones, Richard L. Verch

Aspen Bibliography

No abstract provided.


Winter Diets Of Elk And Deer In The Blue Mountains, Oregon, Jon Skovlin, Martin Vavra Jan 1979

Winter Diets Of Elk And Deer In The Blue Mountains, Oregon, Jon Skovlin, Martin Vavra

Aspen Bibliography

No abstract provided.


Elk-Aspen Relationships On A Prescribed Burn, Joseph V. Basile Jan 1979

Elk-Aspen Relationships On A Prescribed Burn, Joseph V. Basile

Aspen Bibliography

No abstract provided.


Aspen Clearcut (2-Year), Connie J. Pearson, John R. Probst Jan 1979

Aspen Clearcut (2-Year), Connie J. Pearson, John R. Probst

Aspen Bibliography

No abstract provided.


Mature Aspen Forest, Donald Rakstad, John R. Probst Jan 1979

Mature Aspen Forest, Donald Rakstad, John R. Probst

Aspen Bibliography

No abstract provided.


Aspen Forest (20-Year), Connie J. Pearson, John B. Probst Jan 1979

Aspen Forest (20-Year), Connie J. Pearson, John B. Probst

Aspen Bibliography

This report includes a breeding-bird census, a list of dominant plant species, and brief physiographic data for a 20-year old aspen forest in Ontonagon, Michigan.


A Firm Stand For The Quaking Aspen, Robert F. Jones Jan 1978

A Firm Stand For The Quaking Aspen, Robert F. Jones

Aspen Bibliography

No abstract provided.


Assessment Of Regeneration Stocking Standards Used In Alberta: A Follow-Up, I. E. Bella, J. P. Defranceschi Jan 1978

Assessment Of Regeneration Stocking Standards Used In Alberta: A Follow-Up, I. E. Bella, J. P. Defranceschi

Aspen Bibliography

No abstract provided.


Equations For Estimating Stand Establishment, Release, And Thinning Costs In The Lake States, Jeffrey T. Olson, Allen L. Lundgreen, Dietmar Rose Jan 1978

Equations For Estimating Stand Establishment, Release, And Thinning Costs In The Lake States, Jeffrey T. Olson, Allen L. Lundgreen, Dietmar Rose

Aspen Bibliography

No abstract provided.


Characterizing The Growth Dynamics Of Lake States Aspen, Thomas Edward Burk Jan 1978

Characterizing The Growth Dynamics Of Lake States Aspen, Thomas Edward Burk

Aspen Bibliography

No abstract provided.


Aspen Sucker Production And Growth From Outplanted Root Cuttings, Donald A. Perala Jan 1978

Aspen Sucker Production And Growth From Outplanted Root Cuttings, Donald A. Perala

Aspen Bibliography

Aspen suckers from 1-m-long root cuttings survived and grew better than those from 12.5-cm-long cuttings. Sucker survival and growth were also inversely related to parent root diameter. Discusses the practical implications for aspen management.


Our Western Aspen Ecosystem: Quest For Management, Norbert V. Debyle Jan 1978

Our Western Aspen Ecosystem: Quest For Management, Norbert V. Debyle

Aspen Bibliography

No abstract provided.


Hypoxylon Mammatum Pathotoxin Responsible For Canker Formation In Quaking Aspen, Arthur L. Schipper, Jr. Nov 1977

Hypoxylon Mammatum Pathotoxin Responsible For Canker Formation In Quaking Aspen, Arthur L. Schipper, Jr.

Aspen Bibliography

No abstract provided.


Tree To Chips To Red Meat To Steaks, It Serves As Emergency Livestock Feed, Les Kamstra Jul 1977

Tree To Chips To Red Meat To Steaks, It Serves As Emergency Livestock Feed, Les Kamstra

Aspen Bibliography

We must be resourceful. Our "natural" resources are becoming scarcer every day, while waste products mushroom in dumps, along roadsides, in the water and air.


The Influence Of Predator Control On Two Adjacent Wintering Deer Herds, Dennis D. Austin, Philip J. Urness, Michael L. Wolfe Mar 1977

The Influence Of Predator Control On Two Adjacent Wintering Deer Herds, Dennis D. Austin, Philip J. Urness, Michael L. Wolfe

Aspen Bibliography

An unknown number of deer are continually killed on summer and winter ranges by predators, and in at least some locations these losses are significant.


Vegetation And Environmental Features Of Forest And Range Ecosystems, George A. Garrison, Ardell J. Bjugstad, Don A. Duncan, Mont E. Lewis, Dixie R. Smith Jan 1977

Vegetation And Environmental Features Of Forest And Range Ecosystems, George A. Garrison, Ardell J. Bjugstad, Don A. Duncan, Mont E. Lewis, Dixie R. Smith

Aspen Bibliography

This is one of the reports developed as part of the Forest-Range Environmental Study (FRES) of the Forest Service, U.S. Department of Agriculture. This report presents descriptive sketches of 34 soil-vegetation units, called ecosystems. These cover all the land area of the 48 contiguous States.


Jack Pine And Aspen Forest Floors In Northeastern Minnesota, Robert M. Loomis Jan 1977

Jack Pine And Aspen Forest Floors In Northeastern Minnesota, Robert M. Loomis

Aspen Bibliography

Characteristics of upland forest floors under mature jack pine and aspen in northeastern Minnesota were investigated.


Biomass Estimation For Some Shrubs From Northeastern Minnesota, David F. Grigal, Lewis F. Ohmann Jan 1977

Biomass Estimation For Some Shrubs From Northeastern Minnesota, David F. Grigal, Lewis F. Ohmann

Aspen Bibliography

Biomass prediction equations were developed for 23 northeastern Minnesota shrub species. The allometric function was used to predict leaf, current annual woody twig, stem, and total woody biomass (dry grams), using stem diameter class estimated to the nearest 0.25 cm class at 15 cm above ground level as the independent variable.


Natural Regeneration Of Northern Hardwoods In The Northern Great Lakes Region, Carl H. Tubbs Jan 1977

Natural Regeneration Of Northern Hardwoods In The Northern Great Lakes Region, Carl H. Tubbs

Aspen Bibliography

The forest types collectively known as "northern hardwoods" (Quigley and Babcock 1969) occupy nearly 100 million acres in eastern North America.


Some Individual Plant Biomass Values From Northeastern Minnesota, Lewis F. Ohmann, David F. Grigal Jan 1977

Some Individual Plant Biomass Values From Northeastern Minnesota, Lewis F. Ohmann, David F. Grigal

Aspen Bibliography

No abstract provided.


Forest Insect And Disease Management : Aspen Mortality At The Maroon Lake Campground, David W. Johnson, Thomas E. Hinds Jan 1977

Forest Insect And Disease Management : Aspen Mortality At The Maroon Lake Campground, David W. Johnson, Thomas E. Hinds

Aspen Bibliography

At the request of the White River National Forest, Dave Johnson, Plant Pathologist, FI&DM and Tom Hinds, Plant Pathologist, RMFRES, made an evaluation of aspen mortality in the Maroon Lake Campground, Aspen Ranger District during June 13 to 15, 1977. Previously, Hinds (1976) reported accelerated aspen loss in 17 campgrounds, including Maroon Lake, located throughout Colorado and New Mexico (Fig. 1).