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  1. Genetic and dietary effects on chicken heterophil function and immune response to Salmonella enteritidis

    Theses | Contributor(s): Sarah Beth Redmond, Susan J. Lamont (adviser)

    The function of the chicken innate immune system against pathogens is affected by genetic background and immune modulating diet. Heterophils from broiler, Leghorn, and Fayoumi birds showed differential expression of immune genes when stimulated with Salmonella enteritidis (SE) bacteria, a...

  2. The effects of low protein during gestation on mouse pancreas development and beta cell regeneration

    Theses | Contributor(s): Aaron Richard Cox, David Hill (adviser)

    Effects of a low protein (LP) diet during gestation on the metabolism of rat offspring have been well characterized and leads to glucose intolerance in adulthood. It is unknown how LP impacts endocrine pancreas development in the mouse, or whether this affects future β-cell plasticity....

  3. A natural history study of Bufo a. americanus, the eastern American toad, and the phenology of spring breeders in southwest West Virginia

    Theses | Contributor(s): Tomi Maria Bergstrom

    Natural history traits have not been thoroughly collected and analyzed on the ―common hoptoad, Bufo a. americanus (eastern American toad) in West Virginia. Updating natural history information is important to understand the present population status (Jackson, 2001). I chose to have two study...

  4. An integrative analysis of reproduction and stress in free-living male cottonmouths, Agkistrodon piscivorus

    Theses | Contributor(s): Sean Patrick Graham

    I conducted an integrative field study on male cottonmouths (Agkistrodon piscivorus), a common pitviper of the southeastern United States, to investigate the evolution of contrasting mating patterns in North American pitvipers (bimodal and unimodal annual patterns) and resolve conflicting...

  5. The effect of exercise and diet on rat skeletal muscle phospholipid molecular species profile: an electrospray ionisation mass spectrometric analysis

    Theses | Contributor(s): Todd W. Mitchell

    Biological membranes separate cells from the external milieu and compartmentalise organelles within a cell, providing a specialised environment for many specific biochemical processes. They exist as bilayers of amphipathic lipids arranged with their hydrophobic moieties internalised and their...

  6. Re-integrating crops and livestock in Maine: an economic analysis of the potential for and profitability of integrated agricultural production

    Theses | Contributor(s): Aaron K. Hoshide, Stewart N. Smith (adviser)

    This thesis examines the profitability of and sustainability indicators for potato and dairy farms in Maine integrating crops and livestock in two different ways. The first is inter-farm coupling, where two or more specialized producers are close enough to exchange manure applications for crops...

  7. The effect of one-session exposure treatment on selective processing and explicit memory bias in snake- and spider-fearful participants

    Theses | Contributor(s): Karen L. Stanley-Kime

    Unlike the empirically supported phenomenon of anxiety-induced selective processing bias, research on congruent explicit memory bias is inconclusive; indeed, there is evidence for recall decrements of threat-relevant information. There is also a paucity of literature examining the effects of...

  8. The effects of non-surgical interventions on osteoarthritis-like changes in the mouse knee

    Theses | Contributor(s): Wendy K. Anemaet, Anna Plaas (adviser), William Haley (adviser)

    Osteoarthritis (OA) is a debilitating condition affecting over 21 million persons in the United States. This number is expected to rise in the coming decades. Treatment approaches for OA focus on symptom modifying measures (i.e., pain relief) as disease modifying interventions do not currently...

  9. Predictive measures of fetal distress in calves during delivery

    Theses | Contributor(s): Kristin Elizabeth Hard, Howard Tyler (adviser)

    The effect of birth stress on tongue color, length, and responsiveness was studied in fifty eight calves. The calves were monitored from stage 2 of parturition until birth. Tongue parameters (Tongue color, length, and responsiveness) were measured at two minute intervals. Immediately after birth...

  10. Exploring sources of selection on the multimodal courtship displays of two sister species of wolf spiders: schizocosa crassipalpata and schizocosa bilineata

    Theses | Contributor(s): Mitchel D. Bern, Eileen A. Hebets (adviser)

    We examined multiple sources of selection on the multimodal courtship display of two sister species of wolf spiders, Schizocosa crassipalpata and Schizocosa bilineata. We first experimentally altered body condition in these two species by employing divergent diet treatments. We then tested for...

  11. Sex, contamination and movement in an invasive fish

    Theses | Contributor(s): Julie 
R.
 Marentette, 
Dr.
 Sigal 
Balshine
 (adviser)

    Animal movement has had a long history of study in the fields of behavioural ecology and toxicology, but rarely is the ecological context of behaviour in toxicology directly addressed. To explore how movement might be influenced by both sex differences and habitat contamination, I conducted...

  12. Abundance of bottlenose dolphins (Tursiops Truncatus) in the big bend of Florida, St. Vincent Sound to Alligator Harbor

    Theses | Contributor(s): Reny Blue Tyson

    Mark-recapture surveys implementing photographic identification techniques were used to estimate the abundance of bottlenose dolphins in an area of the Big Bend of Florida, stretching from St. Vincent Sound to Alligator Harbor, in the summer of 2007 and winter of 2008. The current population...

  13. Quantitative genetic analysis of reproduction traits in ball pythons

    Theses | Contributor(s): Benson H. Morrill, Lee F. Rickords (adviser)

    Although the captive reproduction of non-avian reptiles has increased steadily since the 1970’s, a dearth of information exists on successful management practices for large captive populations of these species. The data reported here come from a captive population of ball pythons (Python regius)...

  14. Osteoclast ontogeny-experimental studies in two osteopetrotic mutations in the rat: A Dissertation

    Theses | Contributor(s): Matthew Joseph Cielinski

    Osteopetrosis is a metabolic bone disease in mammals characterized by a generalized skeletal sclerosis caused by reduced bone resorption. This reduced bone resorption is manifested in afflicted animals by abnormal bone shape, reduced or absent marrow cavities, extramedullary hemopoiesis,...

  15. Home range, habitat use, and food habits of the black bear in southcentral Florida

    Theses | Contributor(s): Wade Allen Ulrey

    I studied a small, enigmatic, and imperiled black bear population in south-central Florida from 2004 - 2006. Annual home ranges of males (96.0 km2) were larger than those of females (32.2 km2). Female home ranges were smaller in winter than in summer or fall. At the landscape scale, bears...

  16. Reduction in mucosal barrier markers with soy protein diet but not Lactobacillus rhamnosus GG in DSS-treated mice

    Theses | Contributor(s): Huanyi Jiang, Ruth S. MacDonald (adviser)

    Inflammatory bowel disease (IBD) is a common ailment affecting people of all ages. Even though the pathogenesis of IBD has not been fully elucidated, there is evidence that it involves interactions between genetic susceptibility, aberrant activation of the immune system, and the environment....

  17. Endocrine correlates of social and reproductive behaviours in a group-living Australian Passerine, the White-Browed Babbler

    Theses | Contributor(s): Suzanne Oppenheimer

    To investigate the evolutionary rationale for the seemingly altruistic behaviours commonly seen in cooperatively breeding Australian passerines, I examined alloparental behaviour in the White-browed Babbler Pomatostomus superciliosus (WBBA). Toward this end, I analysed behavioural, hormonal, and...

  18. Development of frequency modulated vocalizations in big brown bat pups

    Theses | Contributor(s): Heather W. Mayberry, Dr. Paul A. Faure (adviser)

    Developing bat pups produce distinct vocalizations called isolation calls (I‐calls) that serve to attract the bat's mother. Mothers use spatial memory, auditory and olfactory cues to reunite with their offspring. Because I‐calls are unique to individual pups, vocalizations are crucial for the...

  19. Behavioral ecology of savanna chimpanzees (Pan troglodytes verus) with respect to insectivory at Fongoli, Senegal

    Theses | Contributor(s): Stephanie Lynn Bogart, Jill D. Pruetz (adviser)

    In this dissertation I examine the behavioral ecology of savanna chimpanzees in Senegal. I test hypotheses related to the effects of the environment on the diet of the chimpanzees at Fongoli, concentrating on their insectivory specifically. Fongoli is the hottest and driest site in which...

  20. Developing an online horseless horse learning lesson: an action research study

    Theses | Contributor(s): Jessica M. Bauman, Kathleen Lodl (adviser)

    In today’s society it is becoming ever so important to find creative and influential outlets to keep young people occupied in positive ways. High quality youth programs are shown to make a positive difference in the lives of many young people; therefore, it is important to continue the use of...