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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 21 to 30 of 74 (0.047 seconds)Spelling suggestions: "subject:"cology -- arizona"" "subject:"cology -- orizona""
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SPATIAL DISTRIBUTION OF CARBON AND NITROGEN IN SOME DESERT SHRUB ECOSYSTEMSBarth, Richard Charles, 1943-, Barth, Richard Charles, 1943- January 1975 (has links)
No description available.
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| 22 |
ECOLOGICAL INVESTIGATIONS OF BACKWATERS ALONG THE LOWER COLORADO RIVERKennedy, David Millard January 1979 (has links)
No description available.
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| 23 |
VEGETATIONAL, EDAPHIC, AND FAUNAL CORRELATIONS ON THE WESTERN SLOPE OF THE TUCSON MOUNTAINS AND THE ADJOINING AVRA VALLEYYang, Tien Wei, 1921- January 1957 (has links)
No description available.
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| 24 |
Investigations into the ecological relationships of ponderosa pine in southeast ArizonaDodge, Richard Archie, 1932- January 1963 (has links)
No description available.
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| 25 |
Successional trends on protected versus grazed desert grassland ranges in ArizonaSmith, David Allen, 1943- January 1970 (has links)
No description available.
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| 26 |
EFFECT OF SOIL CATIONS ON THE DISTRIBUTION OF PHYMATOTRICHUM OMNIVORUM (SHEAR) DUGGARMueller, James Paul January 1981 (has links)
The occurrence of the cotton root rot fungus, Phymatotrichum omnivorum (Shear) Duggar, in sharply defined, localized areas in certain fields led to the suggestion that there may be a specific soil chemical factor which limits the spread of the fungus. The available sodium, potassium, calcium, and magnesium contents of infested and adjacent noninfested soils in 13 fields were determined and compared. At seven sites, there were no significant differences in cation contents of infested and adjacent noninfested areas (p = 0.05). Available sodium levels were higher in infested areas at three sites, and higher in noninfested areas at three sites. Potassium and calcium levels were higher in the infested area at one site, and higher in the noninfested areas at two sites. Magnesium levels were higher in the noninfested areas at three sites. Contrary to previous reports, the fungus was found to cause severe disease in soils with available sodium contents as high as 4.2 milliequivalents per 100 g soil. Applications of sodium chloride at rates ranging from 1800 to 4000 kg/ha did not reduce disease severity or increase yield significantly in ten field trials.
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| 27 |
SUMMER FORAGING BEHAVIOR OF SYMPATRIC ARIZONA GRASSLAND SPARROWSTramontano, John Philip, 1936- January 1971 (has links)
No description available.
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| 28 |
AN ANALYSIS OF A SONORAN DESERT SPECIES DIVERSITY GRADIENTYensen, Arthur Eric, 1944- January 1973 (has links)
No description available.
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| 29 |
EFFECTS OF WOODY VEGETATION REMOVAL ON RODENT POPULATIONS AT SANTA RITA EXPERIMENTAL RANGE, ARIZONAVaughan, Thomas Charles, 1943- January 1976 (has links)
No description available.
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| 30 |
Comparative behavior and ecology of the family Molossidae in ArizonaCox, Thomas Joseph, 1933- January 1962 (has links)
No description available.
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