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Ecology and Evolutionary Biology

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Articles 1231 - 1260 of 1385

Full-Text Articles in Genetics and Genomics

Energy Values Of Nine Populus Clones, Terry F. Strong Jan 1980

Energy Values Of Nine Populus Clones, Terry F. Strong

Aspen Bibliography

Compares calorific values for components of nine Populus clones. The components include stem wood, stem bark, and branches. Also compares calorific values for clones of balsam poplar and black cottonwood parentages.


Northeastern Forest Experiment Station: Oak Site Index And Biomass Yield In Upland Oak And Cove Hardwood Timber Types In West Virginia, Harry V. Wiant, Michael S. Fountain Jan 1980

Northeastern Forest Experiment Station: Oak Site Index And Biomass Yield In Upland Oak And Cove Hardwood Timber Types In West Virginia, Harry V. Wiant, Michael S. Fountain

Aspen Bibliography

No abstract provided.


Ecology And Management Of Ruffed Grouse, Judith L. Landry Jan 1980

Ecology And Management Of Ruffed Grouse, Judith L. Landry

Aspen Bibliography

No abstract provided.


Propagation Of Quaking Aspen (Populus Tremuloides Michx.) From Root Cuttings, Karen Elizabeth Burr Jan 1980

Propagation Of Quaking Aspen (Populus Tremuloides Michx.) From Root Cuttings, Karen Elizabeth Burr

Aspen Bibliography

Lateral root cuttings were collected at five quaking aspen (Populus tremuloides Michx.) clones in Larimer County, Colorado on October 2, 1977 and May 30, 1978. The October 1977 root cuttings were stored eight months in air-tight plastic bags at 0 to 4°C. On June 1, 1978 the stored (October 1977) and the fresh (May 1978) root cuttings were planted in a greenhouse propagation bench. All sprouts that developed were allowed to grow on half of the 10-cm long root cuttings randomly selected as controls. On the remaining half of the root cuttings, designated pruned, all but the tallest sprout were …


Apparent Chromosomal Heterosis In A Fossorial Mammal, John C. Patton, Robert J. Baker, Hugh H. Genoways Jan 1980

Apparent Chromosomal Heterosis In A Fossorial Mammal, John C. Patton, Robert J. Baker, Hugh H. Genoways

University of Nebraska State Museum: Mammalogy Papers

For the past decade, numerous investigators have attempted to explain the plethora of genetic polymorphism found in nature (see Ayala 1976). However, few researchers have been able to document how polymorphisms have been maintained, whether the polymorphisms were genic or chromosomal. Our investigations into the maintenance of a Robertsonian chromosomal polymorphism in the plains pocket goher, Geomys bursarius major, have revealed evidence that this polymorphism is maintained by differential viabilities of the three chromosomal morphs, with the heterozygote being favored.


Biochemical Genetics And Systematics Of Garter Snakes Of The Thamnophis Elegans-Couchii-Ordinoides Complex, Robin Lawson, Herbert C. Dessauer Oct 1979

Biochemical Genetics And Systematics Of Garter Snakes Of The Thamnophis Elegans-Couchii-Ordinoides Complex, Robin Lawson, Herbert C. Dessauer

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

No abstract provided.


Morphological Evidence For Taxonomic Partitioning Of The Thamnophis Elegans Complex (Serpente, Colubridae), Douglas A. Rossman Oct 1979

Morphological Evidence For Taxonomic Partitioning Of The Thamnophis Elegans Complex (Serpente, Colubridae), Douglas A. Rossman

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

No abstract provided.


A New Dipsadine Snake Of The Genus Sibynomorphus From Peru, Douglas A. Rossman, Richard Thomas Apr 1979

A New Dipsadine Snake Of The Genus Sibynomorphus From Peru, Douglas A. Rossman, Richard Thomas

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

No abstract provided.


Type Specimens Of Birds In The Museo De Historia Natural "Javier Prado," Lima Peru, Manuel A. Plenge Apr 1979

Type Specimens Of Birds In The Museo De Historia Natural "Javier Prado," Lima Peru, Manuel A. Plenge

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

No abstract provided.


The Relationship Of The Groundsnakes Sonora Semiannulata And S. Episcopa (Serpentes: Colubridae), Darrel R. Frost, Thomas R. Van Devender Apr 1979

The Relationship Of The Groundsnakes Sonora Semiannulata And S. Episcopa (Serpentes: Colubridae), Darrel R. Frost, Thomas R. Van Devender

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

No abstract provided.


Status Of The Nominal Species Of The Fish Genus Xenoophorus (Goodeidae, Cyprinodontiformes) From Mexico, John M. Fitzsimons Apr 1979

Status Of The Nominal Species Of The Fish Genus Xenoophorus (Goodeidae, Cyprinodontiformes) From Mexico, John M. Fitzsimons

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

No abstract provided.


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.