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Articles 271 - 300 of 306

Full-Text Articles in Natural Resources and Conservation

Us/Ibp Desert Biome Executive Meeting Minutes, Us/Ibp Desert Biome Jan 1974

Us/Ibp Desert Biome Executive Meeting Minutes, Us/Ibp Desert Biome

Progress reports

No abstract provided.


Aculeate Hymenoptera (Vespidae And Sphecidae) Of Curlew Valley, George E. Bohart, George F. Knowlton, Wilford J. Hanson Jan 1974

Aculeate Hymenoptera (Vespidae And Sphecidae) Of Curlew Valley, George E. Bohart, George F. Knowlton, Wilford J. Hanson

Progress reports

No abstract provided.


Executive Meeting Minutes, Us/Ibp Desert Biome Jan 1974

Executive Meeting Minutes, Us/Ibp Desert Biome

Progress reports

No abstract provided.


Measurement Of Evapotranspiration With A Monolith Lysimeter, D. W. Young, D. D. Evans, T. W. Sammis Jan 1974

Measurement Of Evapotranspiration With A Monolith Lysimeter, D. W. Young, D. D. Evans, T. W. Sammis

Progress reports

No abstract provided.


Biology Of Nematodes In Desert Ecosystems, D. W. Freckman, R. Mankau, S. A. Sher Jan 1974

Biology Of Nematodes In Desert Ecosystems, D. W. Freckman, R. Mankau, S. A. Sher

Progress reports

No abstract provided.


Reports Of 1971 Progress Volume 3 Terrestrial Validation Studies Part Ii. Individual Sites, U.S. International Biological Program Jan 1972

Reports Of 1971 Progress Volume 3 Terrestrial Validation Studies Part Ii. Individual Sites, U.S. International Biological Program

Progress reports

No abstract provided.


Abstract Of 1971 Progress Report, U.S. International Biological Program Jan 1972

Abstract Of 1971 Progress Report, U.S. International Biological Program

Progress reports

No abstract provided.


The Colorado Plateau, Robert Durrenberger Jan 1972

The Colorado Plateau, Robert Durrenberger

Canyonlands Research Bibliography

The Colorado Plateau was one of the last areas in the United States to be developed economically. Before the 1880s it was virtually empty except for Indians. Today the vast scenic and energy resources of the area are under development, and projections for future development are frightening. Problems of land use management are directly related to the fragmented nature of landholdings. Present methods of consolidation are inadequate, and new approaches to the organization of space must be devised if further degradation of the environment is to be prevented.


Water Resources Of Part Of Canyonlands National Park, Southeastern Utah, C. T. Sumsion, E. L. Bolke Jan 1972

Water Resources Of Part Of Canyonlands National Park, Southeastern Utah, C. T. Sumsion, E. L. Bolke

Canyonlands Research Bibliography

Canyonlands National Park is in about the center of the Canyon Lands section of the Colorado Plateaus physiographic province in southeastern Utah. The part of the park discussed embraces an area of about 400 square miles comprising isolated mesas, precipitous canyons, and dissected broad benches near the confluence of the Green and Colorado Rivers, the only perennial streams in the area. The climate is arid to semiarid; normal annual precipitation ranges from less than 8 to about 10 inches. Potential evapotranspiration is about 41 inches annually.

Geology of the park is characterized by nearly horizontal strata that dip gently northward. …


Reports Of 1971 Progress Volume 2 Terrestrial Validation Studies Part I. Methodological, U.S. International Biological Program Jan 1972

Reports Of 1971 Progress Volume 2 Terrestrial Validation Studies Part I. Methodological, U.S. International Biological Program

Progress reports

No abstract provided.


Reports Of 1971 Progress Volume 4 Terrestrial Process Studies, U.S. International Biological Program Jan 1972

Reports Of 1971 Progress Volume 4 Terrestrial Process Studies, U.S. International Biological Program

Progress reports

No abstract provided.


Reports Of 1971 Progress Volume 1 Central Studies, U.S. International Biological Program Jan 1972

Reports Of 1971 Progress Volume 1 Central Studies, U.S. International Biological Program

Progress reports

No abstract provided.


Reports Of 1971 Progress Volume 5 Aquatic Studies, U.S. International Biological Program Jan 1972

Reports Of 1971 Progress Volume 5 Aquatic Studies, U.S. International Biological Program

Progress reports

No abstract provided.


Assimilation, Metabolism And Growth Of Utah Chub, Gila Atraria, F.C. Cheng, R.L. Wallace, T.C. Bjornn, C. Macphee Jan 1972

Assimilation, Metabolism And Growth Of Utah Chub, Gila Atraria, F.C. Cheng, R.L. Wallace, T.C. Bjornn, C. Macphee

Progress reports

No abstract provided.


Environment And Communiy Organization In Grasslands Of Canyonlands National Park, Edgar F. Kleiner, K. T. Harper Jan 1972

Environment And Communiy Organization In Grasslands Of Canyonlands National Park, Edgar F. Kleiner, K. T. Harper

Canyonlands Research Bibliography

Sixty uniformly distributed stands in adjacent areas, 40 in Virginia Park (virgin) and 20 in Chesler Park (grazed), were analyzed. Cryptogamic and vascular species were recorded; cover was analyzed by the point sampling method, and frequency by means of 25 quadrats (each 0.125 m^2) per stand. The prevalent species (26 in Virginia, 23 in Chesler) were selected on the basis of a constancy-times-frequency index. Interspecific association patterns were determined by means of simple procedures based on quadrat frequency values for each species in the individual stands. Major environmental variables were recorded at each stand, and soil samples from four depths …


Sampling Small Mammal Population In Curlew Valley Methodological Study, David F. Balph Jan 1971

Sampling Small Mammal Population In Curlew Valley Methodological Study, David F. Balph

Progress reports

No abstract provided.


Productivity And Water Stress In Cacti Progress Report, Duncan T. Patten Jan 1971

Productivity And Water Stress In Cacti Progress Report, Duncan T. Patten

Progress reports

No abstract provided.


Validation Studies At Tucson, Arizona, David Hendricks, A. Neil Macgregor, E. Lendell Cockrum, Et Al Jan 1971

Validation Studies At Tucson, Arizona, David Hendricks, A. Neil Macgregor, E. Lendell Cockrum, Et Al

Progress reports

No abstract provided.


Development Of A Technique For Measuring The Water Balance Of Validation Study Areas Methodological Study, John Thames, H. Qashu, C. Kiesel Jan 1971

Development Of A Technique For Measuring The Water Balance Of Validation Study Areas Methodological Study, John Thames, H. Qashu, C. Kiesel

Progress reports

No abstract provided.


Validation Studies At Deep Creek, Curlew Valley Validation Study, G. W. Minshall, F. L. Rose, D. A. Andrews, D. M. Shaw Jan 1971

Validation Studies At Deep Creek, Curlew Valley Validation Study, G. W. Minshall, F. L. Rose, D. A. Andrews, D. M. Shaw

Progress reports

No abstract provided.


Role Of Algae In Crust Formation In Desert Soils Process Studies, Raymond I. Lynn, Roy E. Cameron Jan 1971

Role Of Algae In Crust Formation In Desert Soils Process Studies, Raymond I. Lynn, Roy E. Cameron

Progress reports

No abstract provided.


Models Of Ingestion Rates For Desert Biome Rodents Process Study, Donald R. Johnson Jan 1971

Models Of Ingestion Rates For Desert Biome Rodents Process Study, Donald R. Johnson

Progress reports

No abstract provided.


Validation Studies At Locomotive Springs, Curlew Valley Validation Study, J. Anne Holman Jan 1971

Validation Studies At Locomotive Springs, Curlew Valley Validation Study, J. Anne Holman

Progress reports

No abstract provided.


The Jornada Validation Site (Playa- Nmsu Ranch) Validation Study, Walter G. Whitford, John Ludwig Jan 1971

The Jornada Validation Site (Playa- Nmsu Ranch) Validation Study, Walter G. Whitford, John Ludwig

Progress reports

No abstract provided.


Growth And Development Of Sitanion Hystrix Process Study, M. Hironaka, E. W. Tisdale Jan 1971

Growth And Development Of Sitanion Hystrix Process Study, M. Hironaka, E. W. Tisdale

Progress reports

No abstract provided.


Evaluation Of Techniques For Estimating Population Sizes In Desert Rodents Methodological Study, C. D. Jorgensen, H. D. Smith, D. T. Scott, H. D. Tolley Jan 1971

Evaluation Of Techniques For Estimating Population Sizes In Desert Rodents Methodological Study, C. D. Jorgensen, H. D. Smith, D. T. Scott, H. D. Tolley

Progress reports

No abstract provided.


Development Of Techniques For Estimating Biomass Of Desert Inhabiting Invertebrate Animals Methodological Study, Gordon L. Bender Jan 1971

Development Of Techniques For Estimating Biomass Of Desert Inhabiting Invertebrate Animals Methodological Study, Gordon L. Bender

Progress reports

No abstract provided.


Diets, Food Preferences And Reproductive Cycles Of Some Desert Mammals Process Study, Russell P. Balda, Gary C. Bateman, Terry A. Vaughan Jan 1971

Diets, Food Preferences And Reproductive Cycles Of Some Desert Mammals Process Study, Russell P. Balda, Gary C. Bateman, Terry A. Vaughan

Progress reports

No abstract provided.


Autecological Studies Of Atriplex Confertifolia And Eurotia Lanata Process Study, Martyn M. Caldwell, Neil E. West, Peter J. Goodman Jan 1971

Autecological Studies Of Atriplex Confertifolia And Eurotia Lanata Process Study, Martyn M. Caldwell, Neil E. West, Peter J. Goodman

Progress reports

No abstract provided.


Soil Model -- Heat, Water, And Salt Flow, R. J. Hanks, D. D. Austin, W. T. Ondrechen Jan 1971

Soil Model -- Heat, Water, And Salt Flow, R. J. Hanks, D. D. Austin, W. T. Ondrechen

Progress reports

No abstract provided.