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Articles 56551 - 56580 of 59364

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Distribution And Balance Of Biomass And Nutrients In Desert Shrub Ecosystem, J. O. Klemmedson, R. C. Barth Jan 1975

Distribution And Balance Of Biomass And Nutrients In Desert Shrub Ecosystem, J. O. Klemmedson, R. C. Barth

Memorandum

No abstract provided.


Process Studies Related To The Deep Creek Ecosystem, C. W. Minshall, J. T. Brock, D. A. Mccullough, R. Dunn, M. R. Mcsorley, R. Pace Jan 1975

Process Studies Related To The Deep Creek Ecosystem, C. W. Minshall, J. T. Brock, D. A. Mccullough, R. Dunn, M. R. Mcsorley, R. Pace

Memorandum

No abstract provided.


Comparative Ecology Of The Harvester Ants Pogonomyrmex Barbatus (F. Smith) And Pogonomyrmex Rugosus (Emery), W. G. Whitford, P. Johnson, J. Ramirez Jan 1975

Comparative Ecology Of The Harvester Ants Pogonomyrmex Barbatus (F. Smith) And Pogonomyrmex Rugosus (Emery), W. G. Whitford, P. Johnson, J. Ramirez

Memorandum

No abstract provided.


Factors Contributing To Production And Distribution Of Chihuahuan Desert Annuals, P. D. Whitson Jan 1975

Factors Contributing To Production And Distribution Of Chihuahuan Desert Annuals, P. D. Whitson

Memorandum

No abstract provided.


Data Search For Aquatic Model, J. Perry Ii, G. W. Minshall Jan 1975

Data Search For Aquatic Model, J. Perry Ii, G. W. Minshall

Memorandum

No abstract provided.


Primary Production And Carbon Allocation In Creosotebush, G. L. Cunningham, J. P. Syvertsen, T. V. Feather Jan 1975

Primary Production And Carbon Allocation In Creosotebush, G. L. Cunningham, J. P. Syvertsen, T. V. Feather

Memorandum

No abstract provided.


Abundance And Distribution Of Soil Microarthropods In Rock Valley, Nevada, E. B. Edney, J. F. Mcbrayer, P. J. Franco, A. W. Phillips Jan 1975

Abundance And Distribution Of Soil Microarthropods In Rock Valley, Nevada, E. B. Edney, J. F. Mcbrayer, P. J. Franco, A. W. Phillips

Memorandum

No abstract provided.


Seasonal Use Of Soil Moisture By Larrea Tridentata And Ambrosia Deltoidea, D. R. Cable Jan 1975

Seasonal Use Of Soil Moisture By Larrea Tridentata And Ambrosia Deltoidea, D. R. Cable

Memorandum

No abstract provided.


Jornada Validation Site Report, W. G. Whitford Jan 1975

Jornada Validation Site Report, W. G. Whitford

Memorandum

No abstract provided.


Plant Productivity And Nutrient Interrelationships Of Perennials In The Mohave Desert, A. T. Vollmer, S. A. Bamberg, A. Wallace, J. W. Cha Jan 1975

Plant Productivity And Nutrient Interrelationships Of Perennials In The Mohave Desert, A. T. Vollmer, S. A. Bamberg, A. Wallace, J. W. Cha

Memorandum

No abstract provided.


Demographic Of Termite Colonies As Related To Various Environmental Factors: Population Dynamics And Role In The Detritus Cycle, W. L. Nutting, M. I. Haverty, J. P. Lafage Jan 1975

Demographic Of Termite Colonies As Related To Various Environmental Factors: Population Dynamics And Role In The Detritus Cycle, W. L. Nutting, M. I. Haverty, J. P. Lafage

Memorandum

No abstract provided.


Mycorrhizae Of Desert Plants, E. E. Staffeldt, K. B. Vogt Jan 1975

Mycorrhizae Of Desert Plants, E. E. Staffeldt, K. B. Vogt

Memorandum

No abstract provided.


Relationship Of Lead Mineralization And Bottom Sediment Composition Of Streams, Ponca-Boxley District, Arkansas, William S. Bowen, Kenneth F. Steele Jan 1975

Relationship Of Lead Mineralization And Bottom Sediment Composition Of Streams, Ponca-Boxley District, Arkansas, William S. Bowen, Kenneth F. Steele

Journal of the Arkansas Academy of Science

Samples from tributaries draining known mineralized areas contain considerably more lead than those from the main stream. The unique sediments (i.e. lead rich) from the tributaries are quickly diluted in the main stream to background levels. The lead content of the sediments from the tributaries apparently is controlled by the presence of lead-rich clasts. Sorption of lead by iron oxide coating grains is more significant in the main stream because the unique clasts are diluted. The mineralization also increases zinc and cadmium levels in the sediments. The concentration of calcium is controlled largely by the presence of limestone, whereas the …


Fisheries Report No 16 - Notes On The Wildlife Of A Proposed Nature Reserve Around Lake Grace And Lake Chinokup, Western Australia, N. L. Mckenzie, W. K. Youngson Jan 1975

Fisheries Report No 16 - Notes On The Wildlife Of A Proposed Nature Reserve Around Lake Grace And Lake Chinokup, Western Australia, N. L. Mckenzie, W. K. Youngson

Fisheries Research Reports

During 1972 and 1973 plants and vertebrate animals were collected and recorded from a proposed 22 000 ha nature reserve centred on a chain of salt lakes in south-western Western Australia (33° 10' S - 33° 35' 8 and 118° 19' B - 118° 29' E).

The dominant plant species were collected, the structural formations desert bed and a vegetation map produced. Seven species of native terrestrial mammal and three species of bat were recorded.

Three of the terrestrial species are endemic to southwestern Western Australia, and two of these - Pseudomys occidentalis and Sminthopsis granulipes - are regarded as …


Descubiertos Restos Recientes De Un Megaterio, Aldemaro Romero Jr. Jan 1975

Descubiertos Restos Recientes De Un Megaterio, Aldemaro Romero Jr.

Publications and Research

No abstract provided.


How To Make A Natural Resources Inventory, Community Natural Resources Inventory Project Jan 1975

How To Make A Natural Resources Inventory, Community Natural Resources Inventory Project

Maine Collection

A Handbook How to Make a Natural Resources Inventory for Your Community

Prepared by: James F. Connors, Sterling Dow III & Dean B. Bennett

Community Natural Resources Inventory Project (Title I, Higher Education Act), The University of Maine at Portland - Gorham (Project Sponsor) and The Maine Association of Conservation Commissions (Project Co-Sponsor), 1975.

"This handbook is published as a result of a grant from the U.S. Office of Education, Department of Health, Education and Welfare under the Higher Education Act, Title I. No official endorsement by the U.S. Office of Education should be inferred."

Contents: Preface / Introduction / …


Further Development Of A Stream Ecosystem Model, J. H. Wlosinski, G. W. Minshall Jan 1975

Further Development Of A Stream Ecosystem Model, J. H. Wlosinski, G. W. Minshall

Memorandum

No abstract provided.


Responses And Interactions In Desert Plants As Influenced By Irrigation And Nitrogen Applications, R. B. Hunter, E. M. Romney, J. W. Childress, J. E. Kinnear Jan 1975

Responses And Interactions In Desert Plants As Influenced By Irrigation And Nitrogen Applications, R. B. Hunter, E. M. Romney, J. W. Childress, J. E. Kinnear

Memorandum

No abstract provided.


Gas Exchange, Translocation, Root Growth And Soil Respiration Of Great Basin Plants, M. M. Caldwell, E. J. Depuit, O. A. Fernandez, H. H. Wiebe, L. B. Camp, R. S. Holthausen, H. Neuber Jan 1975

Gas Exchange, Translocation, Root Growth And Soil Respiration Of Great Basin Plants, M. M. Caldwell, E. J. Depuit, O. A. Fernandez, H. H. Wiebe, L. B. Camp, R. S. Holthausen, H. Neuber

Memorandum

No abstract provided.


Growth Of Perennials In Response To Varying Moisture And Defoliation Regimes, J. A. Macmahon, B. E. Norton, B. M. Capen Jan 1975

Growth Of Perennials In Response To Varying Moisture And Defoliation Regimes, J. A. Macmahon, B. E. Norton, B. M. Capen

Memorandum

No abstract provided.


Physiological And Biochemical Studies Of Nitrogen Fixation In The Nodules Of Sagebrush (Artemisia Ludoviciana) And Other Desert Nitrogen-Fixing Systems, R. B. Farnsworth Jan 1975

Physiological And Biochemical Studies Of Nitrogen Fixation In The Nodules Of Sagebrush (Artemisia Ludoviciana) And Other Desert Nitrogen-Fixing Systems, R. B. Farnsworth

Memorandum

No abstract provided.


Nitrogen Transformations In Rock Valley And Adjacent Areas Of The Mohave Desert, R. B. Hunter, A. Wallace, E. M. Romney, P. A.T. Wieland Jan 1975

Nitrogen Transformations In Rock Valley And Adjacent Areas Of The Mohave Desert, R. B. Hunter, A. Wallace, E. M. Romney, P. A.T. Wieland

Memorandum

No abstract provided.


Water Infiltration Under Desert Condition, D. D. Evans, S. Nnaji, T. W. Sammis, G. Hansen Jan 1975

Water Infiltration Under Desert Condition, D. D. Evans, S. Nnaji, T. W. Sammis, G. Hansen

Memorandum

No abstract provided.


Plant Growth And Water Transfer Interactive Processes Under Desert Conditions, D. D. Evans, T. W. Sammis Jan 1975

Plant Growth And Water Transfer Interactive Processes Under Desert Conditions, D. D. Evans, T. W. Sammis

Memorandum

No abstract provided.


Effects Of Grazing On Desert Vegetation, B. E. Norton Jan 1975

Effects Of Grazing On Desert Vegetation, B. E. Norton

Memorandum

No abstract provided.


Tucson Basin Validation Site Report, J. L. Thames Jan 1975

Tucson Basin Validation Site Report, J. L. Thames

Memorandum

No abstract provided.


Rock Valley Validation Site Report, F. B. Turner Jan 1975

Rock Valley Validation Site Report, F. B. Turner

Memorandum

No abstract provided.


Curlew Valley Validation Site Report, R. S. Shinn, R. D. Anderson, M. Merritt, W. Osborne, J. A. Macmahon Jan 1975

Curlew Valley Validation Site Report, R. S. Shinn, R. D. Anderson, M. Merritt, W. Osborne, J. A. Macmahon

Memorandum

No abstract provided.


Nitrogen And Phosphorus Constraints On Primary Production In The Great Basin Desert, J. J. Jurinak, D. W. James, R. L. Evans Jan 1975

Nitrogen And Phosphorus Constraints On Primary Production In The Great Basin Desert, J. J. Jurinak, D. W. James, R. L. Evans

Memorandum

No abstract provided.


Plant Response To Insect Herbivory, B. E. Norton, L. B. Smith Jan 1975

Plant Response To Insect Herbivory, B. E. Norton, L. B. Smith

Memorandum

No abstract provided.