The phytoplankton, or plant plankton, live in the open water throughout their life cycle and obtain the necessary nutrients from the water. They are important contributors to the total plant production of lakes and ponds.

The purpose of this paper is to relate the economic history of the Great Feeder Canal and preform an analysis on its flow of water. Historical chapters are portrayed chronologically and reveal in sight into the rustic irrigation problems that faced those individuals who developed the Great Feeder Canal. The latter part of the paper entails an economic analysis indicating that the Great Feeder Canal is unique in that it uses nearly twice as much irrigation water per acre as other canals in Southeastern Idaho, yet it tends to maximize net social benefits.

It has commonly been assumed that grazing decreases the longevity of plants, however, very few studies address this question. Knowledge of mean age, longevity and other aspects of population dynamics would help improve estimates of productivity and nutrient cycling and aid understanding of range condition and trend. These data would also aid in developing a theory of community organization and control. As a step toward these ends, pantograph records from twelve 1 m2 plots established at the U. S. Sheep Station on the Snake River Plains of southeastern Idaho between 1923 and ' l935 were examined. The plots were mapped almost yearly until 1956. These records were analyzed for establishment and survival of populations of major vascular, perennial plant species of the tall threetip sagebrush-grass vegetation type. Average longevities of the grazed plants were significantly different from ungrazed populations for some species. For the pastures grazed by sheep in the fall the average longevities of the dominant grass and two subdominant grasses were increased whereas the average longevity of tall threetip sagebrush was reduced by grazing. The differences in average longevity due to grazing are thought due to alteration of competitive relationships. The photosynthetically active sagebrush is sensitive to grazing in the fall whereas the grasses are dormant. A slight reduction in the total volume of the sagebrush apparently releases resources to the grasses the following spring. The greatest mortality was observed during the first year of life for all species . Survivorship curves for the first eleven years of life of most species could be linearized by logarithmic transformations on both axes indicating that the chance for survival improved with age, up to the physiological maximum. No linear relationships of increasing size to age were found in these plants. This indicates a considerable plasticity in the growth characteristics of these plants, where in poor years negative growth can occur by the reduction of unsupportable biomass. This all ows plant size to fluctuate with fluctuating environment, and allows for stands of even sized plants with great age differences. Labeling recruitment to these plant populations as "pulse" phenomena becomes a matter of definition. If a log-normal distribution is expected, as indicated by some researchers, outliers are not present and "pulse" regeneration does not occur in this system. However, if recruitment is expected to follow a normal distribution then the years with high numbers of seedlings become "pulses," by definition. From these analyses, it appears that these semi-desert communities are closed (the available resources are totally used) and replacement of individuals is somewhat random following more or less random death.

Since the end of World War I instrumental music has become an important and accepted part of the secondary school curriculum (17, pp. 56-59). According to a recent report published by the American Music Conference, Chicago, Illinois (19, p.3), there were in 1963 eleven million students studying music in the schools of America. There have been numerous studies conducted t o determine the purpose and objectives of instrumental music. Many studies have also been made to ascertain what the parents' feelings are toward their schools. Yet there has been very little research or study accomplished concerning the feelings or attitudes of parents toward instrumental music in the high school.

In the past, several projects have been conducted at Bear Lake, Utah-Idaho, by the Utah State University through the Wildlife Resources Department, in conjunction with the Utah and Idaho fish and game departments, the Fish and Wildlife Service , and the National Science Foundation. These projects have dealt primarily with limnology, limnological techniques, fish life histories, fish movements, and bottom fauna in the pelagic and benthic areas of the lake. Subsequently, a littoral zone project was set up to study some of the ecological aspects of the shallow waters of Bear Lake, and some of the influences that this area may have on the entire lake.

Within the last 30 years the music departments in the schools of the Southeastern Idaho areas have grown tremendously. With the mushrooming of the band programs within these music departments many problems appear. They arise primarily from inadequate funds.

This research employs a sample of archaeological sites from three ecological zones to investigate the mobility strategies of hunter-gatherer groups in Late Archaic southwestern Idaho. The sample sites are organized into site types based on an independent evaluation of site components and existing site records. Ceramic assemblages at each site were analyzed to quantify the investment in ceramic technology, as a proxy for mobility. These measures were then compared to expectations generated from three proposed mobility patterns for hunter-gatherer groups in southwestern Idaho. Some of the predictions were met and these data allude to an archaeological record with a multitude of settlement patterns that may have changed over the course of seasons, years, and even decades.

Thesis (Ph. D.)--University of Idaho, 2006. / Abstract. "May 2006." Includes bibliographical references (leaves 107-127). Also available online in PDF format.

We have recently developed and tested a new computational method for experiment prototyping at the Advanced Test Reactor (ATR). The method significantly reduces neutronic computation time while maintaining computational accuracy. In this thesis, we present the method and describe the techniques that we used to implement it. We then qualitatively and quantitatively analyze its performance for absorptive and multiplicative experiment perturbations over a single region and across multiple regions of the ATR. We conclude with a discussion of future research that might be conducted on the method. / text

The purpose of this study was to identify micro, mezzo, and macro level factors which may be contributing to disparities in the removal decision among Latino and Native Americans in the Idaho child welfare system. Additionally, this study explored what factors contribute to the decision to investigate a referral or substantiate a claim of child abuse or neglect. This study used a secondary data analysis of all families (n = 4547) referred for abuse or neglect to the Idaho public child welfare system between April 1 and September 30, 2009. It was found that children were more likely to be removed if they had previously been a victim of abuse or neglect. Native American children were 4.39 times more likely to be removed than White children and Latino children were 1.78 times more likely to be removed than White children. Additional positive predictors of removal were domestic violence, being on public assistance, being referred for "other" maltreatment type rather than neglect, and the county poverty rate. The only negative predictor of placement was being referred for physical abuse rather than neglect. The R2 for these variables was 17.09%. Additional significant results indicated that county variables, such as the presence of a field office in a given county and level of rurality, were factors in the investigation decision. Referrals for physical abuse were also more likely to result in an investigation than referrals for neglect. The child's age and a referral for "other" maltreatment type were negatively related to the disposition of a case. Finally, an assessment was conducted of disparity at various decision points in the child welfare process. It was determined that Native Americans, Latinos, and Blacks/African Americans all experience disparity at some point in the early decision-making process of a child welfare case. For Black/African American children, the greatest disparity occurs at the referral to child welfare. For Latino children, the greatest disparity occurs at the removal decision. Native American children also have the greatest disparity at the removal decision, although they experience disparity at nearly every explored point in the child welfare process. / text