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Full-Text Articles in Life Sciences
A Revision Of The Astragalus Lentiginosus Complex For The State Of Utah, Carol Susan Schoener
A Revision Of The Astragalus Lentiginosus Complex For The State Of Utah, Carol Susan Schoener
Theses and Dissertations
The taxonomy and distribution of the Astragalus lentiginosus complex in Utah is presented. The nine varieties are listed and a key is provided which allows determination of the members of the complex in Utah. Each entity is discussed and illustrated. Two distribtuion maps are included for each variety, one showing the distribution in Utah and the other, the general range of the entity. The body of this work is based on the study of herbarium specimens and field observations and collection. These studies have resulted in the synonymizing of two varieties, the inclusion of another and one nomenclatural change.
The Spatial Distribution Of The Nests Of The Black-Crowned Night Heron (Nycticorax Nycticorax) And The Snowy Egret (Leucophoyx Thula) In Central Utah, Randall S. Isham
The Spatial Distribution Of The Nests Of The Black-Crowned Night Heron (Nycticorax Nycticorax) And The Snowy Egret (Leucophoyx Thula) In Central Utah, Randall S. Isham
Theses and Dissertations
Nests of the Black-crowned Night Heron and the Snowy Egret were examined in five central Utah colonies in 1973 to determine the spatial distribution within the colony. Nest locations of the 1085 nests of the two species were plotted to the nearest foot with an alidade and plane table. Tests of randomness, clump size, association, segregation, and T distribution were utilized. No differences between species were noted for the distance to the nearest and the next nearest nest. The Night Heron nested closer to other Night Herons and more often than did the Snowy Egret which non-significantly selected either species …
Biological Studies On Cryptobia Atraria Sp.N. (Kinetoplastida: Cryptobiidae) In Fishes From The Sevier River Drainage, Utah, J. Stephen Cranney
Biological Studies On Cryptobia Atraria Sp.N. (Kinetoplastida: Cryptobiidae) In Fishes From The Sevier River Drainage, Utah, J. Stephen Cranney
Theses and Dissertations
Fish culture for both food and sport utilization has been greatly increasing throughout the world. The editor of Fish Farming Industries (1973) predicted an increase by 1977 in the United States of 83% for catfish producers, 49% for trout farmers, and 91% for bait dealers. Concomitant with the renewed interest in fish culture has been a corresponding need to further understand fish diseases.
Ecological Aspects Of Cercocarpus Montanus Raf. Communities In Central Utah, David Lee Anderson
Ecological Aspects Of Cercocarpus Montanus Raf. Communities In Central Utah, David Lee Anderson
Theses and Dissertations
Ecological and environmental aspects relating to Cercocarpus montanus Raf. Communities were investigated. Twenty study sites were sampled and described. All factors were then analyzed utilizing statistical methods. Signigicantly correlated factors to C. montanus parameters (i.e., frequency, density, cover, height) were: positive correlation--percent clay, percent clay-silt, percent litter cover, and total soluble salts in soil; negative correlation--percent silt-sand, percent sand, soil pH; exposed surface rock, Amelanchier alnifolia cover, Gotierrezia sarothrae cover and altitude. Several individual factors were singled out as being of importance in C. montanus communities; howerver, it was shown that a combination of factors was most important in determining …