Icteridae; Birds of North America -- Ecology; Birds of North America -- Behavior; Conservation biology; Ecological genetics;
In this dissertation, I examined the Bahama Oriole (Icterus northropi) at multiple scales, with the aim of developing a sound management plan for this critically endangered bird. In the first of five studies, I measured plumage variation among four...
Brain microbleeds (BMB), often present in cerebrovascular and neurodegenerative diseases and neurotrauma, are associated with both chronic and acute illness of significant social and economic impact. Because BMB present a source of potentially...
Many birds communicate via a diverse set of vocalizations, but the contexts, roles, and structure of their varied songs and calls may change with age, differ between sexes, and vary temporally and geographically. In New World orioles, most tropical...
Geology, Stratigraphic -- Pliocene; Sedimentation and Deposition; Death Valley (Calif. and Nev.);
The Copper Canyon Formation, a fluvial-lacustrine deposit exposed within the
Black Mountains of Death Valley National Park, has only previously been broadly included in regional tectonic and depositional analyses. The formation is significant...
Previous studies demonstrated enhanced fetal adrenal cortisol biosynthesis following exposure to long-term hypoxia (LTH). The studies presented here were designed to determine the mechanism(s) regulating this important adaptive endocrine response....
The internet has been demonstrated to be a promising modality to deliver mental health care services to cancer survivors suffering from multifaceted distress (Winzelberg et al., 2003; Fernsler et al., 1997; Fogel et al., 2003; Gustafson et al.,...
Alterations in brain metals homeostasis and particularly brain iron overload have been postulated to play a role in Alzheimer’s disease, contributing to oxidative stress and neuronal injury; however, the source of this iron is not clear and may...
This dissertation reports a survey of water quality, algal biodiversity, and toxin production in Southern California lakes, ponds, bays, and lagoons along the California coastline, in five counties from Santa Barbara to San Diego. Samples were...
Child Abuse, Sexual -- Psychology; Depression; African Americans; Caucasians
According to the theory of Fundamental Assumptions, childhood sexual abuse survivors have more depressive symptoms as a consequence of disrupted assumptions relating to optimism and mastery (Janoff-Bulman, 1992). This study tested whether positive...
Intelligence: Bilingualism in children; Monolingualism in children; Memory; Brain Injuries
Pediatric traumatic brain injury (TBI) occurs at an average rate of 180 per 100,000 children who are hospitalized for head injury within the United States (Schwartz et al., 2003). Bilinguals are a large proportion of the population living in the...
Perihematomal edema causes major neurologic deterioration following
intracerebral hemorrhage (ICH), mainly resulting from the disruption of the blood-brain barrier (BBB) by multiple mediators, including inflammatory mediators and thrombin. The...
