Browsing by Department "Biological Sciences"
Now showing items 261-280 of 301
Sexual Dimorphism, the Big-Mother Hypothesis, and Analyses of Hormones, Minerals, and Stable Isotopes to Determine Reproductive Events in Bowhead Whales (Balaena mysticetus)
(2015-12-03)
Baleen from bowhead whales (Balaena mysticetus) provided an opportunity to study reproduction and sexual dimorphism via analyses of hormones, minerals, and stable-isotopes. Concentration of progesterone in baleen was ...
Sickness Behavior and the Metabolic Demand of Immunity: Insight from a Live Bacterial Infection Model.
(2020-07-21)
Life-history theory states that animals have access to a finite amount of resources over their lifespan. These resources are allocated between growth, reproduction, and maintenance, and how these resources are allocated ...
Small RNA and Transcriptome Analysis of Cotton (Gossypium hirsutum L.) Susceptibility, Resistance, and Hypersensitivity to Reniform Nematodes (Rotylenchulus reniformis)
(2014-12-10)
Reniform nematodes (RN) are semi-endoparasitic nematode species causing significant yield loss in cotton, particularly in the eastern US cotton belt. Successful RN parasitism is contingent on establishment of a syncytium, ...
Small RNAs in Gossypium and Their Roles in the Response to Heat Stress
(2013-12-05)
Small regulatory RNAs, which usually are 20 to 24 nt in length, play crucial roles in plant growth, development, and stress response. Based on their origin, biogenesis and function, plant small RNAs can be classified into ...
Social Network Formation in Translocated Gopher Tortoises (Gopherus polyphemus)
(2020-07-31)
The gopher tortoise is a fossorial species native to the coastal plain of the southeastern United States. The species occurs spatially in colonies, or aggregations of individuals on the landscape, which were recently found ...
Some Like it Hot: Fire and Legume Germination in the Longleaf Pine Ecosystem
(2011-03-29)
Fire is a globally distributed disturbance and is important for structuring and maintaining the diversity of many frequently burned ecosystems. Competitive relationships and vegetation patterns may be affected by fire’s ...
Spatial Analysis of Plateau Pika Habitat Use
(2017-07-27)
The habitat occupied by animals during their normal activities is referred to as their home
range. This physical space contains limited resources that are necessary for reproduction and
survival. Using spatial analysis ...
Spatial ecology of the eastern diamond-backed rattlesnake (Crotalus adamanteus)
(2007-08-15)
An animal’s spatial ecology may be governed by variables operating at more than one spatial scale, which underscores the importance of incorporating multiple spatial scales into habitat selection models. This is particularly ...
SQSTM1/p62 Expression Effects on Mitochondria and Protection from Neurodegeneration: A Proposed Role from Mitochondrial Dynamics to Learning and Memory
(2013-09-12)
Sequestosome 1(SQSTM1/p62) is a multi-domain scaffolding protein involved in
multiple cellular processes ranging from endocytosis to protein degradation that employ
both the ubiquitin proteasome system and autophagy. In ...
Stream-breeding amphibian responses to land use distrubances
(2009-04-29)
Conversion of land from an undeveloped state into agricultural or urban areas is widespread. Urban areas in particular are growing both in size and number globally. Such land use changes can potentially have negative ...
Studies on the Role of Non-canonical Wnt/JNK Signaling During Early Anterior-Posterior Axis Formation in Sea Urchin Embryos
(2023-05-30)
The establishment of embryonic body axes is a crucial event during early metazoan embryogenesis, determining the correct shape of the adult body plan. Wnt signaling pathways are conserved cascades that regulate important ...
Study of a Novel Host-Parasite Relationship: Mycoplasma gallisepticum in House Finches (Carpodacus Mexicanus)
(2006-08-15)
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 ...
A survey on the dynamics of bacterioplankton assemblages associated with an estuarine system and the stomodeum of Mnemiopsis leidyi and their functional potential
(2016-11-02)
Estuaries are among the most biologically productive ecosystems. Eighty percent of our sea food is harvested from estuaries, which are popular recreation areas, yet vital to marine transportation. Unfortunately, estuaries ...
Survival and Transmission of Selected Pathogens on Airplane Cabin Surfaces and Selection of Phages Specific for Campylobacter jejuni
(2014-04-28)
We determined the limits of survival and transmission of Escherichia coli O157:H7 and methicillin-resistant Staphylococcus aureus (MRSA) on common surfaces found in the cabin of a civil aircraft. The two pathogens were ...
Symbiosis and Nitrogen Cycling: Physiological Effects of Anemone Shrimps on Host Sea Anemones in the Caribbean Sea
(2014-07-24)
Symbioses are characteristic of coral reef communities and can involve networks of species interactions as well as specialized adaptations to reef conditions. Because coral reefs are surrounded by nutrient-poor water, ...
Symbiotic benefits to sea anemones from the metabolic byproducts of anemonefish
(2007-12-15)
Although anemonefishes and their giant sea anemone hosts became known to the western world in the late nineteenth century, and the first studies exploring these associations were published almost one hundred years ago, to ...
Systematics and evolutionary history of sea catfishes (Siluriformes: Ariidae)
(2009-04-28)
Ariids or sea catfishes are one of the two otophysan fish families (out of 67 families in four orders) that inhabit primarily marine and brackish waters, although some ariid species occur strictly in fresh waters. The ...
A Tale of Two Anemone Shrimps: Predation Pressure and Mimicry in a Marine Cleaning Mutualism
(2016-12-10)
For mutualistic relationships between different organisms, coloration and behavior can be used to indicate the ability to provide a service. These visual signals allow other organisms to mimic them to gain their benefits ...
Taxonomic and Phylogenetic Revision of the Family Chiasmodontidae (Perciformes: Acanthomorpha)
(2009-08-07)
The family Chiasmodontidae, commonly known as swallowers, comprises four genera and 33 species distributed in the meso and bathypelagic regions of the Atlantic, Pacific, Indian and Southern Oceans. The species of Chiasmodon ...
Telomeres dynamics across early life of the Cuban Brown Anole (Anolis sagrei)
(2023-12-01)
Telomere length is a key biomarker for cellular senescence and organismal survival. However, relatively little research has been conducted on the dynamics of telomeres in early life, particularly in reptiles. Through the ...