Browsing MS Theses - DO NOT EDIT by Title
Now showing items 29-48 of 60
-
Identifying Individual Eurasian Otters (Lutra lutra) Based On Measurements Of Their Footprints Standardization Of The Method And Its Potential For Censusing And Monitoring Wild Otter Populations
(Biology, 2007-08-23)A method for identifying individual Eurasian otters (Lutra lutra L.) from measurements of their footprints was first tested by performing experiments with captive animals. Digital photographs were taken of imprints in mud ... -
IMPACTS OF DAM REMOVAL ON CYANOBACTERIA BLOOMS AND ZOOPLANKTON COMMUNITY IN HYPEREUTROPHIC UPPER KLAMATH LAKE
(2023-08-14)The Chiloquin Dam was removed from the Sprague River in 2008 to restore the natural hydrology of Upper Klamath Lake (UKL), allow fish access to historical spawning grounds, and alleviate the effects of long-term eutrophication. ... -
Integration Mechanism Of The Site Specific Non-LTR Retrotransposon, R2Bm
(Biology, 2010-07-19)The focus of this thesis is the mechanistic study of non-LTR retrotransposon replication using the site specific transposon R2Bm. Non-LTR retrotransposons integrate into new chromosomal sites by copying their RNA back ... -
The Interplay Of Environmental Stressors On The Life History Traits In Daphnia lumholtzi
(Biology, 2014-12)In natural environments, organisms face multiple stressors that threaten their persistence. Aquatic organisms respond to a change in environmental conditions by adaptively modifying the expression of traits (i.e., ... -
Investigation Of Potential Virulence Factors In Pathogenic Marine Bacteria
(Biology, 2014-09-17)Coral reefs provide numerous ecological and economic functions and are critical to biodiversity in marine environments. Critical to coral reef health and diversity is the microbial consortium within the coral host along ... -
Lack Of Respiratory Effects Of Nicotine Applied To The Caudal Medullary Raphé
(Biology, 2008-08-08)Breathing is an involuntary and automatic process initiated by a network of neurons within the brainstem. These neurons are affected by a number of factors (mechanical, electrical and chemical) that help modulate the ... -
Molecular Systematics Of The Coffee Snakes, Genus Ninia (Colubridae: Dipsadinae)
(Biology, 2011-10-11)Although previous studies have addressed issues relating to the systematics and taxonomy in the snake genus Ninia, the evolutionary history of the group remains largely unknown. Preliminary morphological studies have been ... -
Monte Carlo Analysis Of Refuge Site Selection: Statistical Properties And An Empirical Example
(Biology, 2007-10-08)The Monte Carlo method can be a useful technique providing information on central tendencies and tolerance for selection data. There are many statistical hypothesis tests that are employed in selection studies, but most ... -
Morphology And Habitat Use Among Insular Populations Of The Lizard Anolis lemurinus From The Cayos Cochinos Archipelago Of Honduras
(Biology, 2009-09-16)In Honduras, Anolis lemurinus is distributed along the Atlantic versant of the mainland and on the Caribbean island system consisting of the Bay Islands and Cayos Cochinos archipelagos. In the Cayos Cochinos, A. lemurinus ... -
Population Genetics Of Phanaeus vindex And P. difformis And Congruence With Morphology Across A Geographic Zone Of Species Overlap
(Biology, 2007-08-23)Amplified Fragment Length Polymorphisms (AFLPs) reveal that the rainbow scarabs Phanaeus vindex (MacLeay) and Phanaeus difformis (LeConte) are distinct evolutionary units which occur in sympatry at the Fort Worth Nature ... -
Population Genetics, Systematics, Biogeography, And Evolution Of The Southeastern Central Texas Eurycea Clade blepsimolge (Plethodontidae)
(Biology, 2007-08-23)The central Texas Eurycea are a diverse group of perennibranchiate salamanders which inhabit the Edwards Plateau. Although several studies have addressed the systematics and taxonomy of this group, little is known about ... -
Proteasomal Gene Duplications And Recruitment Of Testis Specific Expression In Drosophila
(Biology, 2008-09-17)Proteasome is a large multisubunit complex that degrades ubiquitinated proteins in a highly regulated manner in all eukaryotes. Two subcompartments of this subunit are the 19Scap and the 20S core particle with 19S acting ... -
Proximate And Ultimate Mechanisms Associated With Female Secondary Coloration In The Mexican Boulder Spiny Lizard, (Sceloporus pyrocephalus)
(Biology, 2007-08-23)Secondary sexual coloration is thought to be the result of runaway selection for signals that honestly communicate relative fitness. Much theoretical work suggests sexual selection has driven conspicuous secondary traits ... -
Rcd-1 Related:a Positively Selected Retrogene With Spermatogenesis Function In Drosophila
(Biology, 2008-04-22)Gene duplication is one of the major forces in driving genome evolution. Our study focuses on a particular retrogene Rcd-1 related (Rcd-1r) that originated through retroposition of the parental gene Required for cell ... -
The Relationship Of Oribatid Soil Mite Abundance To Abiotic And Biotic Factors
(Biology, 2008-08-08)Oribatid soil mites primarily feed on fungi and dead organisms. They belong to the arthropod subclass, Acari, that are believed to contribute to soil processes such as plant litter breakdown and nutrient release. In order ... -
Reproductive Behaviors Of Two Congeneric, Sympatric Jumping Spiders: Gene Flow Barriers And Polyandry
(Biology, 2007-08-23)This two part study compares aspects of jumping spider reproductive behavior and their implications 1) as gene flow barriers during the process of speciation and 2) in the occurrence of polyandry. Courtship behaviors of ... -
Role Of Repetitive DNA In Apicomplexan Genome Evolution
(Biology, 2010-07-19)The Apicomplexa represent a phylum of obligate intracellular parasites that impart significant medical, veterinary, and socioeconomic burdens worldwide. The opportunistic, AIDS-associated, pathogen Toxoplasma gondii for ... -
Role Of The Extracytoplasmic Function Sigma Factor carQ In Oxidative Response Of Bradyrhizobium japonicum
(Biology, 2013-10-23)Bradyrhizobium japonicum is a nitrogen-fixing bacterium that can establish a symbiotic relationship with the soybean plant. To be a successful symbiont, B. japonicum must have an effective mechanism to deal with plant ... -
Sequence Evolution Of Recurrently Recruited Retroposed Genes In Drosophila And Their Possible Role In Meiotic Drive
(Biology, 2009-09-16)Gene duplications are a valuable source of genetic information that can evolve under positive selection creating a new gene function without affecting the original function.A gene duplication mechanism is retroposition. ... -
Sex, War And Disease: The Effects Of Infection On Horn Size And Intra-sexual Competition In The Broad-horned Flour Beetle, Gnathocerus cornutus
(Biology, 2010-03-03)Sexual selection is widely used to explain the evolution of mating systems where most often it is manifest as the competition among males for access to females. This competition takes the form of direct male-male interactions ...