Animal Studies Commons^™

The Intersection Of Aging And Pet Guardianship: Influences Of Health And Social Support, Ranell L. Mueller, Elizabeth G. Hunter

People and Animals: The International Journal of Research and Practice

Studies of the human-animal bond show many positive health effects for pet guardians including a sense of companionship, reduced depression and loneliness, and higher activity levels, yet few studies have examined factors such as how the pet guardians’ health, age, and social networks influence their relationship with and ability to care for their pet. These health factors may affect the ability of older adults to care for their pets, therefore inhibiting them from reaping positive benefits associated with pet guardianship. This qualitative study involved 21 in-depth interviews with older adults, aged 60+, who were pet guardians. Four themes emerged from …

Co-Modulation Masking Release Begins In The Auditory Periphery, Kareem R. Hussein, Agudemu Borjigan, Mark Sayles

The Summer Undergraduate Research Fellowship (SURF) Symposium

Understanding speech in noisy environments can be difficult, especially for people with hearing loss. The background noise can cover up the sounds of interest. Normally, the auditory system works to alleviate this problem by tagging and then cancelling the noise. Our experiments are aimed at understanding the mechanism of this noise cancellation process. We hypothesize that non-linear signal processing in the mammalian cochlea (the most peripheral part of the auditory system) is the basis of noise cancellation. To test this hypothesis, we measured the responses of auditory-nerve fibers (ANFs) to sounds embedded in background noise with different statistical properties. ANFs …

Acoustic Signatures Of Habitat Types In The Miombo Woodlands Of Western Tanzania, Sheryl Vanessa Amorocho, Dante Francomano, Kristen M. Bellisario, Ben Gottesman, Bryan C. Pijanowski

The Summer Undergraduate Research Fellowship (SURF) Symposium

The Miombo Woodlands of Tanzania comprise several habitat types that are home to a great number of flora and fauna. Understanding their responses to increasing human disturbance is important for conservation, especially in places where people depend so directly on their local ecosystem services to survive. Soundscapes are a powerful approach to study complex biomes undergoing change. The sounds emitted by soniferous fauna characterize the acoustic profile of the landscapes they inhabit such that habitats with the highest acoustic abundance are considered as the most diverse and possibly more ecologically resilient. However, acoustic variability within similar habitat types may pose …

Effects Of Biomass Harvest On Eastern Red-Backed Salamanders, Patrick J. Ruhl

Open Access Theses

In a typical forest harvest, the volume of coarse woody debris (CWD) increases from nonmerchantable material (i.e., tree-tops, limbs, and small-diameter trees) left on the forest floor. Biomass harvesting removes much of this material for bioenergy production. When removed, ecosystem services associated with CWD, such as seedbed substrate, nutrient cycling, and essential wildlife habitat, is reduced. Woodland salamanders have strict microhabitat and soil moisture requirements that make them especially sensitive to timber harvest practices, particularly those that remove CWD, a primary habitat for the group.

I monitored the abundance of Eastern red-backed salamanders ( Plethodon cinereus ) in response to …

The Role Of Adiponectin And The Adipocyte In Energy Metabolism And Inflammation, Sheila Kay Jacobi

Open Access Dissertations

A series of experiments were conducted to characterize the autocrine role of adiponectin in modulating fatty acid metabolism and inflammation in the pig. In the first study, we cloned and sequenced the porcine adiponectin open reading frame and evaluated the regulation of adiponectin, in vitro and in vivo. The porcine sequence shares approximately 88, 86, 85 and 83% homology with the dog, human, cow and mouse adiponectin, respectively, and 79–83% similarity with dog, human, cow and mouse proteins at the amino acid level, based on the translated porcine sequence and GenBank submissions for the other species. Analysis of serum from …

Growth Of Post-Weaned Grazing Dairy Heifers When Evaluating The Effects Of Providing Shade Or Parasite Control, Mohammad W. Sahar

Open Access Theses

Reduced heat stress and lower gastrointestinal parasite loads can increase growth rate in heifers, potentially reducing the age at first breeding and lowering the costs associated with raising replacement dairy heifers. Providing shade is a recommended practice for reducing heat stress of grazing animals and is considered important for their wellbeing and productivity. However, limited information is available on the growth performance of young grazing dairy heifers when they are provided shade. Likewise, numerous products exist to prevent gastrointestinal parasites in animals. The development of new anthelmintic products, such as LongRange® (eprinomectin), increase the need for research to help understand …