Life Sciences Commons^™

Forest Grouse Ecology And Management In The Bear River Range Northern Utah, Skyler Y. Farnsworth

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

To better manage dusky grouse (Dendragapus obscurus) and ruffed grouse (Bonasa umbellus), hereafter forest grouse, managers require better information on forest grouse population status and habitat selection. To address this need, from 2015-2017, I conducted research on a sympatric populations inhabiting the Bear River Range of northern Utah to develop a breeding survey protocol, assess habitat selection, evaluate dusky grouse response to livestock grazing, and determine hunter harvest rates.

The breeding census protocol that I developed compared listening intervals with and without electronic playback calls at designated survey stop locations. Using digital mapping software, I plotted …

Investigation Of Selected Aspects Of Kokanee (Onchorhynchus Nerka) Ecology In Porcupine Reservoir, Utah, With Management Implications, Paul Joel Janssen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Several aspects of kokanee (Onchorhynchus nerka) ecology were studied in the fluctuating, 80ha Porcupine Reservoir, Utah in order to determine optimum management strategies. In 1981, escapement was enumerated and estimates of egg deposition were made. An estimate of the resulting fry recruitment was also attempted and was successful up to the arrival of spring runoff. In 1982, escapement was enumerated and estimates of egg deposition were made, with subsequent estimates of egg deposition and percent survival to the advanced eyed stage. Age and growth rates were determined and survival rates estimated.

Escapement for 1981 and 1982 was 5,463 …

A Comparison Of Daughters Of Sires In Artificial Breeding At Different Levels Of Management, Richard C. Cook

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

One of the largest problems facing the successful dairyman of today is selection of proper sires to mate to his high producing cows. Many breeders and dairymen have the impression that proven sires will give the same increase in production regardless of the dam's production or the level of environment present. Even though sires come from high producing herds, some as high as 600 pounds of butterfat, the average production of all cows in the state of Utah remains at a much lower figure. The average for all cows in Utah is about 250 pounds of butterfat and the average …

A Management Study Of The Idaho-Utah Interstate Deer Herd With Special Reference To The Sublett, Black Pine, And East Raft River Mountain Unit, Kenneth L. Diem

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Extensive deer migrations have been observed for many, years in western mountain regions. More recently several complex interstate migrations have become the objects of careful study and the subjects of special wildlife movement programs. The interstate deer migrations between the Sublett-Black Pine, Idaho, areas and the East Raft River Mountain, Utah, area are not exceptional. These migrations are now of such a magnitude that they are creating management problems of increasing importance to the 2 states involved.