Date of Award:
5-1938
Document Type:
Thesis
Degree Name:
Master of Science (MS)
Department:
Plants, Soils, and Climate
Department name when degree awarded
Botany
Committee Chair(s)
Frank B. Wann
Committee
Frank B. Wann
Abstract
The study of bird feeding problems has become a prominent factor in wild life management. This is true especially with respect to the evaluation of recently established migratory bird refuges. In 1929 the Federal Government assumed control of a large area of land located on the Bear River Bay of Great Salt Lake for the purpose of providing a sanctuary for water fowl. Dykes were built and the areas inside these dykes flooded with fresh water from Bear River. During subsequent years aquatic and marsh plants* developed abundantly and apparently have provided satisfactory feeding and nesting grounds for migratory birds. In an attempt at a partial evaluation of the Bear River Migratory Bird Refuge as a feeding area this study of the chemical composition of a few types of vegetation collected on the refuge was undertaken.
By the chemical analysis of these plants it was anticipated that information on the following points could be obtained: (1) variation in chemical composition of different food plants; (2) effect of season on the chemical composition; (3) effect of depth of water and the associated changes in pH, temperature, and turbidity on the chemical composition of food plants; (4) the feeding value of the most important food plants.
Checksum
a8d85a325c7888ea79a588cfd78f0403
Recommended Citation
Christensen, Dale Clair, "The Feeding Value of Certain Duck Food Plants of the Bear River Migratory Bird Refuge As Determined By Chemical Analysis" (1938). All Graduate Theses and Dissertations, Spring 1920 to Summer 2023. 323.
https://digitalcommons.usu.edu/etd/323
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