• Daily Energy Budgets Of Caribou: A Simulation Approach (Energetics, Metabolism, Rangifer Tarandus, Migration)

      Fancy, Steven Glen (1986)
      Energetic constraints have played a major role in the evolution of caribou (Rangifer tarandus). This thesis discusses several ways in which these constraints have affected caribou morphology, physiology and behavior through their effects on the physiological condition of caribou. A computer model of daily energy budgets was used to simulate energy budgets of caribou in late winter, spring migration, and during the month of July when caribou may be harassed frequently by insects. Model outputs included estimates of metabolizable energy intake, and changes in body weight and body composition. Several of the model inputs, such as fasting metabolic rates and activity costs, were measured using captive caribou. The mean energy cost for locomotion by adult caribou was the lowest recorded for any terrestrial species, and was more strongly related to leg length than to body weight. Highly significant (p < 0.001) relationships between oxygen consumption and heart rates were used to estimate energy expenditures for activities from heart rates of caribou ranging within a large enclosure. Energy expenditures by caribou while feeding on grain at a trough, grazing, browsing and walking, as estimated from heart rates, were 12%, 18%, 18% and 46% higher than that while standing, respectively. The doubly labeled water method was validated using caribou and reindeer as a method for estimating energy expenditures by free-ranging ruminants. The computer model accurately predicted changes in body weight and composition in trials with captive caribou. The model predicted fat losses of approximately 4 kg for pregnant females of the Porcupine Herd during spring migration. During the insect season, a lactating female was predicted to be in negative energy balance on all days when insect harassment occurred for 12 h or longer. Variations in input data associated with energy intake had a much greater effect on model outputs than did factors associated with energy expenditure. Consequently, the optimal range use strategy in the absence of other constraints should involve movements to areas where the most digestible forages can be obtained and the highest eating rates attained.
    • Daily heterogeneity in habitat selection by the Porcupine Caribou Herd during calving

      Jones, Rachel Rands (2005-08)
      Caribou exhibit scale-dependent habitat selection, but variance in daily habitat selection by the Porcupine Caribou Herd (PCH) has not been examined. Investigating temporal variance in habitat selection may clarify the time period when managers may accurately estimate calving-related habitat selection. Annually, 1992-1994, approximately 70 calves were radio-collared within 2 days of birth and relocated daily until departing the calving grounds. We used daily 99% fixed kernel utilization distributions (UD's) to estimate caribou distributions, then estimated daily habitat selection using logistic regression. Habitat variables included relative vegetation greenness, greening rate, landcover class, and elevation. Spatial scales of investigation included concentrated vs. peripheral use within daily UD's, daily use within the merged extent of all daily UD's, and daily use within the historical extent of calving, 1983-2001. We used linear regression of logistic regression parameter estimates on sequential sampling days to estimate temporal habitat selection trends during the 3 weeks following capture. Overall, caribou exhibited habitat selection at multiple scales, without temporal trends, suggesting that the 21-day period following capture constituted a single domain and that managers may accurately estimate calving-related habitat selection at any point during this period.
    • Daily Meal Patterns, Voluntary Food Intake And Fattening Of Reindeer During Winter And Responses To Insulin

      Stimmelmayr, Raphaela; White, R. G.; Drew, K. L. (2001)
      I determined the effect of insulin injections on daily feeding behavior and voluntary food intake (VFI) in reindeer (Rangifer tarandus t. ) fed a concentrate ration during winter. Food intake in the absence of insulin injections was down regulated and characterized by small, regular meals during daylight and irregular and sometimes large nighttime meals. Each large nighttime meal was associated with a long post-meal interval. Daytime meal size could be predicted from an estimate of the energy deficit incurred since the previous meal; however, the occasional oversized nighttime meals were not predicted from energy deficit and suggested that appetite may be deregulated at night. I hypothesized that a low daily dose of long acting insulin (1.0 IU/kg BW, s.c.) would result in regular feeding day and night, which should result in reduced VFI. Changes in serum insulin concentration could not be detected following insulin treatment, however exogenous insulin resulted in a loss of daytime and nighttime differences in meal size and intermeal interval length and a decrease in mean daily meal size. Over a 21 d treatment period, exogenous insulin prevented an increase in VFI during a warming trend and tended to counter a linear decline in body mass and backfat depth (measured by ultra-sound) typified by control animals (given Lactate Ringer 0.005 ml/kg BW, s.c.). The influence of insulin over fat retention suggests that reindeer are capable of lipogenesis in winter. A combination of rhythmic variation in satiety response to meals during daylight and decoupling of meal size and frequency at night is suggested as an endocrine model underlying daily appetite regulation in the reindeer.
    • Daily WRF Output

      Morton, Don (2013-03-06)
    • Dairy and Potato Farms: In the Matanuska and Tanana Valleys 1951

      Andrews, Richard A.; Johnson, Hugh A.; Martin, Paul F. (Alaska Agricultural Experiment Station, 1953-02)
      The study reported here is one of a series designed to provide in formation on farm organization in Alaska for aiding economics development and expansion of permanent farm units. Records were obtained on 46 farm s in the Matanuska Valley and 4 farm s in the Tanana Valley; all were included in the 1950 study. Analysis is limited to a description of the general farm situation in 1951 and to a comparison with 1947, 1949 and 1950.
    • Dairy Farming With Dollars and Sense in the Matanuska Valley

      University of Alaska Agricultural Experiment Station, 1959-02-19
    • Dairy Herd Improvement

      Sweetman, W. J. (School of Agriculture and Land Resources Management, Agricultural and Forestry Experiment Station, 1965-05)
      Milk and milk fat production have both been improved by crossing good Holstein or Red Dane bulls with Guernsey cows ( 1). The mature equivalent production ( M. E. ) for 365 days, 3 times milking of Holstein-Guernsey crosses is reported at 17,186 pounds of milk and 805 pounds of fat compared with their dams average of 10,897 pounds of milk and 555 pounds of fat. The Dane- Guernsey crosses averaged 18.149 pounds of milk and 803 pounds of fat as against their clams average of l].] 63 pounds of milk and 546 pounds of fat.
    • "Dance, dance, dance: Alaska stories"

      Wise, Zoë E.; Soos, Frank; Johnson, Sara; Heyne, Eric (2019-05)
      Dance, Dance, Dance: Alaska Stories is a collection of young women's coming of age stories. The protagonists range in age from teenager to middle aged, and the circumstances that provoke their epiphanies include events spanning from the mundane to the dramatic, such as looking through a photo album, and death. Protagonists who move through these cumulative events seek to emerge from past identities and understandings of themselves. In all of these stories the Alaskan setting is important. Physical environment, in some stories, is only perceived to be a barrier; in other stories, the setting functions as a conflict that frustrates characters' desires. Regardless, all protagonists, to a degree, ultimately realize themselves to be a barrier, and must overcome internal conflicts before coming to terms with--or abandoning--their external environment. A technical aspect of these stories that I have particularly focused on developing is the varied point of view. The ranges of points of view in these stories include retrospective first person, second person, and third person limited. In this collection I focused on the irony that each point of view, when working with a coming of age story, can provide. Narrative distance in these stories is used to highlight the difference between what the characters know and understand and what we, the readers, understand about their situations
    • Dance/movement therapy (DMT) for cancer survivors and caregivers in Fairbanks, Alaska

      Sharma, Dinghy Kristine B.; Lopez, Ellen D. S.; Rivkin, Inna D.; Swift, Joshua K.; Goodill, Sharon W. (2016-08)
      Worldwide, the burden of cancer continues to grow and impact the quality of life of patients, their families, and caregivers. Aside from the physical effects and financial costs of cancer and its treatment, a significant portion of cancer patients and their caregivers experience emotional, social, and psychological distress throughout the trajectory of their illness and extending to long-term survivorship. Despite medical advances in cancer treatment, a cancer diagnosis is still often considered to be synonymous with death, pain, and suffering. It has been established that engaging in the creative arts could promote quality of life (QOL) especially for those suffering from chronic illnesses such as cancer. Specifically, studies on dance/movement therapy (DMT) have indicated its efficacy as a complementary and holistic intervention in providing social support, decreasing fatigue and stress, increasing mobility, and enhancing overall wellbeing of cancer survivors. Results from a pilot DMT study that explored the cultural suitability, feasibility, and benefits of using DMT in the post-treatment QOL of Alaska Native cancer survivors indicated positive impacts on participants' mobility, body awareness, emotional expression, self-care, and wellbeing. Participants from the pilot study highlighted the need for providing DMT in the community and opening the DMT group to both cancer survivors and caregivers. This suggestion was in consideration of the lack of support groups available to both cancer survivors and caregivers that focus on cancer survivorship and promotion of quality of life. Existing locally available cancer support groups emphasize cancer education but are limited in meeting the psycho-social, emotional and physical needs of both cancer survivors and caregivers. The encouraging results and feedback from participants not only supported existing studies on DMT's cross-cultural benefits in promoting QOL among cancer survivors but also provided the rationale for a larger dissertation study for survivors and caregivers in Fairbanks, Alaska. It was in this context that DMT's significance in increased survivorship and QOL among cancer survivors and caregivers in Alaska was examined. The study employed a sequential, mixed methods small-N design in investigating the therapeutic benefits of DMT among cancer survivors and caregivers (N = 16) in a practice-based setting in Fairbanks, Alaska. Adhering to the principles of community-based partnership research (CBPR), the study established a collaborative partnership with the Fairbanks Memorial Hospital as it piloted a 12- week, open DMT group intervention for cancer survivors and caregivers. The study was conducted in two phases: Phase 1: DMT Intervention (12 weeks) and Phase 2: Follow-up and Findings Meeting (3 months after the last offered DMT session), which assessed DMT’s lasting effects on participants. Quantitative and qualitative data were employed to examine DMT’s effects on participant’s mental health functioning, body awareness, subjective QOL, and sense of group cohesiveness and engagement with the DMT group. Quantitative findings indicated significant improvements in participants’ mental health functioning with a moderate effect size after participation in the DMT program. Although no significant pre- to post-change was found on participants’ subjective QOL, cancer survivors reported significantly better QOL (social, emotional and functional wellbeing) at the three-month follow-up, suggesting that DMT can offer late, but possibly lasting, positive changes. Additionally, participants’ ability for selfregulation and use of avoidance as a coping tool for pain were found to increase after their DMT participation. No significant changes were noted in participants’ level of cohesion with the DMT group. However, qualitative findings indicate that participants found that the DMT program was extremely beneficial in promoting their physical, psychological, social and spiritual wellbeing and expressed overall strong positive feelings toward their DMT group. Implications for research and clinic practice were discussed as informed by the study’s strengths and limitations. One the study’s strengths is its adherence to the principles of community-based participatory research (CBPR) as an over-arching framework in guiding all aspects of the research process. By establishing a collaborative partnership between the UAF academic community and the local community hospital (Fairbanks Memorial Hospital), this study was able to build on the community’s strengths and resources in an effort to help promote cancer survivorship for cancer survivors and caregivers. Future recommendations include further strengthening collaborative community partnerships with a larger, DMT confirmatory study using a Randomized Control Trial (RCT) design, while integrating a mixed-methods approach. Implementing these strategies would help establish DMT’s efficacy as a holistic and ecologically valid intervention for cancer survivors and caregivers in Fairbanks, Alaska.
    • Data (Appendix) for Book Chapter 22: Rapid Assessment of Urban Birds and GIS models of Kathmandu and Pokhara, Nepal with Regmi and Huettmann 2020 Hindu Kush Himalaya: Watersheds Downhill, Springer

      Hansen, Lindsay; Huettmann, Falk (4/2/2020)
      This compiled dataset consists of a field data from rapid assessment of common birds found in urban areas of Kathmandu and Pokhara, Nepal, Hindu Kush-Himalaya (HKH) region.The dataset consists of 31 bird and animal species from a detection survey of 2 transects and photos in MS Excel sheets. It is overlaid with Open Street GIS map predictors for the study areas, and model predicted with GIS. We used the following 6 layers:waterways, natural places, shop polygons, land use, roads and highways and computed proximities for each in GIS. Methods and details are specified in the book chapter by Huettmann in Regmi and Huettmann 2020. This is the first and best compiled field and GIS data for the study area and is to set a start of such views and investigations towards a better and more fair access to data, as part of a better and more democratic decision-making process. Here an example is presented using avian species and GIS habitat layers.
    • Data (Appendix) for Book Chapter 25: Museum Data holdings and Libraries in Nepal and Hindu Kush Himalaya region with Regmi and Huettmann 2020 Hindu Kush Himalaya: Watersheds Downhill, Springer

      Huettmann, Falk (4/2/2020)
      This compiled dataset consists of a value-added analysed GBIF data set in the wider Hindu Kush-Himalaya (HKH) region. The original data source is from individual national contributors found in GBIF. Data are used here for research purposes for the wider HKH region watersheds and to show institutional spread and distribution. Some major outside museums internationally are mentioned too. The dataset consists of MS Excel sheets Methods and details are specified in the book chapter by Huettmann in Regmi and Huettmann 2020. This is the first and best compiled data for the study area and is to set a start of such views and investigations towards a better and more fair access to data, as part of a better and more democratic decision-making process.
    • Data (Appendix) for Book Chapter 28: Sarus Crane GIS Model with Regmi and Huettmann 2020 Hindu Kush-Himalaya: Watersheds Downhill, Springer

      Karmacharya, D. K.; Huettmann, F.; Mi, C; Han, X; Duwal, R; Yadav, SK; Guo, Y (4/2/2020)
      This dataset consist of an appendix of GIS model predictions of Sarus Cranes (GRus antigone Taxonomic Serial Number TSN: 176181) in Nepal. Details are specified in the book chapter by Karmacharya et al in G.R.Regmi and F. Huettmann 2020. This is the first model for this species and shows conservation management implications for the Terai landscape between Nepal and India.
    • Data (Appendix) for Book Chapter 33: Persistent Langur (Semnopithecus) decline in Nepal with Regmi and Huettmann 2020 Hindu Kush Himalaya: Watersheds Downhill, Springer

      Ale, Purna Bahadur; Regmi, Ganga Ram; Huettmann, Falk (4/2/2020)
      This dataset consists of an appendix of a GIS map of langur sp information in Nepal. The datasets are locations, presences and absences from a value-added GBIF.org query, transect data by the authors and literature data Details are specified in the book chapter by Ale et al in Regmi and Huettmann 2020. This is the first and best compiled data for this species in Nepal and shows national declines with large conservation management implications.
    • Data (Appendix) for Book Chapter 37: 'Road, Railroad and Airport data for the Hindu Kush Himalaya region' with Regmi and Huettmann 2020 Hindu Kush Himalaya: Watersheds Downhill, Springer

      Huettmann, Falk (4/2/2020)
      This compiled dataset consists of an appendix of value-added merged GIS maps for roads, railroads and airports in the wider Hindu Kush-Himalaya (HKH) region. The original data source is from individual national DIVA-GIS files and used here for research purposes for the wider HKH region watersheds. Nations included are: Nepal, India, China, Buthan, Kazachstan, Tajikistan, Kyrgystan, Uzbekistan, Turkmenistan, Afghanistan, Iran, Laos, Myanmar, Thailand, Vietnam, Pakistan, Bangladesh and Cambodia. The dataset consists of 21zip archives of these nations also covering railways and airports. Methods and details are specified in the book chapter by Huettmann in Regmi and Huettmann 2020. This is the first and best compiled data for the study area.
    • Data (Appendix) for Book Chapter 43: Citizen Science Experience in Lumbini/Nepali for Sarus Cranes and Lesser Adjudants (Storks) with Regmi and Huettmann 2020 Hindu Kush Himalaya: Watersheds Downhill, Springer

      Karmacharya, D.K.; Duwal, R.; Yadav, S.K. (4/2/2020)
      This dataset consist of an appendix of citizen science data for the Sarus Crane and Adjudant storks in Lumbini and Jagdishpur Reservoir, Nepal. It's a plain MS Excel sheet.
    • Data analysis and data assimilation of Arctic Ocean observations

      Stroh, Jacob Nathaniel; Panteleev, Gleb; Mölders, Nicole; Weingartner, Thomas; Rhodes, John (2019-05)
      Arctic-region observations are sparse and represent only a small portion of the physical state of nature. It is therefore essential to maximize the information content of observations and bservation-conditioned analyses whenever possible, including the quantification of their accuracy. The four largely disparate works presented here emphasize observation analysis and assimilation in the context of the Arctic Ocean (AO). These studies focus on the relationship between observational data/products, numerical models based on physical processes, and the use of such data to constrain and inform those products/models to di_erent ends. The first part comprises Chapters 1 and 2 which revolve around oceanographic observations collected during the International Polar Year (IPY) program of 2007-2009. Chapter 1 validates pan- Arctic satellite-based sea surface temperature and salinity products against these data to establish important estimates of product reliability in terms of bias and bias-adjusted standard errors. It establishes practical regional reliability for these products which are often used in modeling and climatological applications, and provides some guidance for improving them. Chapter 2 constructs a gridded full-depth snapshot of the AO during the IPY to visually outline recent, previouslydocumented AO watermass distribution changes by comparing it to a historical climatology of the latter 20th century derived from private Russian data. It provides an expository review of literature documenting major AO climate changes and augments them with additional changes in freshwater distribution and sea surface height in the Chukchi and Bering Seas. The last two chapters present work focused on the application of data assimilation (DA) methodologies, and constitute the second part of this thesis focused on the synthesis of numerical modeling and observational data. Chapter 3 presents a novel approach to sea ice model trajectory optimization whereby spatially-variable sea ice rheology parameter distributions provide the additional model flexibility needed to assimilate observable components of the sea ice state. The study employs a toy 1D model to demonstrate the practical benefits of the approach and serves as a proof-of-concept to justify the considerable effort needed to extend the approach to 2D. Chapter 4 combines an ice-free model of the Chukchi Sea with a modified ensemble filter to develop a DA system which would be suitable for operational forecasting and monitoring the region in support of oil spill mitigation. The method improves the assimilation of non-Gaussian asynchronous surface current observations beyond the traditional approach.
    • Data mining for mine-mill ore grade reconciliation at Erdenet Mining Corporation

      Sarantsatsral, Narmandakh (2016-11)
      This project investigates the relationship between the mined ore and the produced copper at the Erdenet Mining Corporation (EMC) surface copper mine in Mongolia. Four and half years of data (from 2011-2015) was obtained from the open pit mine and mineral processing plant of EMC. The mine-mill data was collected on a shift basis. The data was examined carefully using process knowledge and exploratory data analysis techniques to detect and eliminate errors. Ultimately, two years of data (2013-2014) was selected for further analysis. As is common in all mines, the material flow between the mine and mill is complicated by numerous stockpiles. The copper grade going into a stockpile may not be directly related to the copper grade exiting a stockpile. Therefore, data mining techniques applied to detect the relationship between mined ore and milled copper had to overcome the complications introduced by the presence of stockpiles. Multiple data sets were created by aggregating the original dataset by different periods. For example, in one case, data was aggregated by three shifts, to convert the data from shift-basis to daily-basis. Aggregation is an ideal way to absorb variations in material flow (tonnage and grade) between mine and mill. Data was aggregated by 3, 4, 5, 6, 7, 8, 9, 10, 11 and 12 shifts ("aggregated widths" or AW). Correlation analysis was then conducted on each version of the data to determine if a relationship existed between mine data and mill data. Correlation was computed for various period lengths, but not exceeding 28 days. Therefore, in a given year, several correlation plots were produced at each aggregated width. The number of times the correlation coefficient exceeded 0.8 in a year was measured. Results showed that correlation improved with aggregation width. The highest correlations occurred at AW of 7 or 8. This suggests that the stockpiles aggregate material for 2-3 days. Correlation analysis also included examining a time shift ("lag") between mine data and mill data. This is useful to detect whether material takes a certain amount of time before it is processed and produced as copper. However, results indicated that once the data was aggregated, a time lag greater than 0 only worsened correlation.
    • Data Submission Package for Manuscript 'Model-predicting Matschie's Tree Kangaroo in Papua New Guinea'

      Falk Huettmann et al. (30-Jul-20)
      These are the GIS data used for modeling Matschie's Tree Kangaroo (Huon Tree Kangaroo) in Papua New Guinea PNG; for details please see metadata. THe manuscript is currently in revision phase.
    • Data-Driven Decisions for Library Liaisons: Exploring Strategies for Effectively Managing Diminishing Monograph Collections

      Jensen, Karen (Taylor & Francis, 2012-01-01)
      Many academic libraries have liaison programs as a means of building relevant and useful library collections and to promote library resources to campus users. Librarians have long served as liaisons without the benefit of much data to guide decisions. In this age of library budget cuts, librarians need to make every dollar count. What collection and use data help liaisons build a quality monograph collection that better meets the needs of library users? This article offers some ideas for providing the data needed by liaisons for more informed decision making and collection management and, ultimately, for ensuring that library materials purchased are needed and used.
    • Datalogger Evaluation

      Zarling, John P.; Kinney, Thomas C.; McGilvary, Randy; Briggs, Rick (1986-01)