Search
Now showing items 1-10 of 13
Ecology Of Rudbeckia auriculata (Perdue) Kral (Asteraceae)
(2008-09-09)
Rudbeckia auriculata is a rare species endemic to three southeastern states: Alabama, Florida, and Georgia. Eight censuses of flowering individuals of the species were conducted from 1992 to 2002. Although the number of ...
Plumage coloration and morphology in Chiroxiphia manakins: interacting effects of natural and sexual selection
(2009-02-23)
I examined how natural and sexual selection may have influenced the morphology and coloration of Chiroxiphia manakins (Aves: Pipridae). In the first chapter, I investigated age and sexrelated patterns of plumage coloration ...
Effects of Trematode Parasites on Habitat Use and Disturbance Response of Freshwater Snails in the Genus Elimia
(2008-09-09)
Freshwater snails in the genus Elimia are abundant and important grazers in many southeastern USA streams; in addition, Elimia serves as intermediate hosts to many species of parasitic trematodes and is frequently subject ...
The Physiological Effects of Relocation on Gopher Tortoises (Gopherus polyphemus)
(2008-09-09)
As a result of habitat destruction throughout the southeastern United States, gopher tortoises (Gopherus polyphemus) have experienced an 80% decrease in their populations in the past 100 years. To protect the remaining ...
Reproductive Biology of Relict Trillium (Trillium reliquum)
(2008-09-09)
Pollination and seed dispersal were studied in six populations of the endangered plant species Trillium reliquum in Bullock and Lee counties in Alabama and in Muscogee County, Georgia. Few populations of this species exist ...
Thermotolerance in Gossypium hirsutum
(2008-09-09)
Heat and drought are major factors that affect the annual cotton yield. Cotton farmers are always looking for plants that are more thermotolerant and drought tolerant to increase the yield. These characteristics can be ...
Vigilance in Columbian Ground Squirrels: The Effects of Kinship and Mechanisms of the Group-size Effect
(2008-09-09)
Behavioral observations of Columbian ground squirrels (Spermophilus columbianus) were made to investigate two factors that can affect vigilance: the group-size effect and the presence of kin. Vigilance was timed in over ...
Study of a Novel Host-Parasite Relationship: Mycoplasma gallisepticum in House Finches (Carpodacus Mexicanus)
(2008-09-09)
Although host-parasite interactions are well recognized as dynamic interactions leading to the occurrence of emerging infectious disease, we know little about how host-
parasite systems evolve. To better understand how ...
Molecular Ecology of Peromyscus polionotus
(2008-09-09)
Lowe et al. (2004) describes ecological genetics as “the investigation of the origin and maintenance of genetic variation within and between populations, which ultimately leads to adaptation and speciation.” Thus, to gain ...
Variation in populational size and composition within two summer colonies of endangered gray bats (Myotis grisescens)
(2008-09-09)
For >30 years, the endangered gray bat (Myotis grisescens) has been a priority in conservation efforts in the southeastern United States. As part of these conservation efforts, the Alabama Department of Conservation and ...