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College of Sciences and Mathematics: Recent submissions

Now showing items 381-399 of 399

Phylogenetic and morphologic analyses of a coastal fish reveals a marine biogeographic break of terrestrial origin in the southern Caribbean 

Acero, Arturo P; Betancur, Ricardo R; Santos, Scott R; Duque-Caro, Hermann (2019-07-01)
BACKGROUND: Marine allopatric speciation involves interplay between intrinsic organismal properties and extrinsic factors. However, the relative contribution of each depends on the taxon under study and its geographic ...

Performance of single and concatenated sets of mitochondrial genes at inferring metazoan relationships relative to full mitogenome data 

Havird, Justin C; Santos, Scott R (2019-05-10)
Mitochondrial (mt) genes are some of the most popular and widely-utilized genetic loci in phylogenetic studies of metazoan taxa. However, their linked nature has raised questions on whether using the entire mitogenome for ...

Genetic differentiation, structure, and a transition zone among populations of the pitcher plant moth Exyra semicrocea: implications for conservation 

Stephens, Jessica D; Santos, Scott R; Folkerts, Debbie R. (2019-05-10)
Pitcher plant bogs, or carnivorous plant wetlands, have experienced extensive habitat loss and fragmentation throughout the southeastern United States Coastal Plain, resulting in an estimated reduction to <3% of their ...

Tracking transmission of apicomplexan symbionts in diverse Caribbean corals 

Kirk, Nathan L; Ritson-Williams, Raphael; Coffroth, Mary Alice; Miller, Margaret W; Fogarty, Nicole D; Santos, Scott R (2019-05-10)
Symbionts in each generation are transmitted to new host individuals either vertically (parent to offspring), horizontally (from exogenous sources), or a combination of both. Scleractinian corals make an excellent study ...

Nemertean toxin genes revealed through transcriptome sequencing 

Whelan, Nathan V; Kocot, Kevin M; Santos, Scott R; Halanych, Kenneth M (2019-04-29)
Nemerteans are one of few animal groups that have evolved the ability to utilize toxins for both defense and subduing prey, but little is known about specific nemertean toxins. In particular, no study has identified specific ...

Biogeochemical and Microbial Variation across 5500 km of Antarctic Surface Sediment Implicates Organic Matter as a Driver of Benthic Community Structure 

Learman, Deric R; Henson, Michael W.; Thrash, J. Cameron; Temperton, Ben; Brannock, Pamela M; Santos, Scott R; Mahon, Andrew R; Halanych, Kenneth M (2019-04-29)
Western Antarctica, one of the fastest warming locations on Earth, is a unique environment that is underexplored with regards to biodiversity. Although pelagic microbial communities in the Southern Ocean and coastal Antarctic ...

Classification of a Hypervirulent Aeromonas hydrophila Pathotype Responsible for Epidemic Outbreaks in Warm-Water Fishes 

Rasmussen-Ivey, Cody R.; Hossain, Mohammad J.; Odom, Sara E; Terhun, Jeffery S.; Hemstreet, William G; Shoemaker, Craig A; Zhang, Dunhu; Xu, De-Hai; Griffin, Matt J; Liu, Yong-Jie; Figueras, Maria J; Santos, Scott R; Newton, Joseph C; Liles, Mark R (2019-04-29)
Lineages of hypervirulent Aeromonas hydrophila (vAh) are the cause of persistent outbreaks of motile Aeromonas septicemia in warm-water fishes worldwide. Over the last decade, this virulent lineage of A. hydrophila has ...

Siboglinid-bacteria endosymbiosis: A model system for studying symbiotic mechanisms 

Thornhill, Daniel J; Fielman, Kevin T; Santos, Scott R; Halanych, Kenneth M (2019-04-29)
Siboglinid worms are a group of gutless marine annelids which are nutritionally dependent upon endosymbiotic bacteria.1,2 Four major groups of siboglinids are known including vestimentiferans, Osedax spp., frenulates and ...

Geographic structure in the Southern Ocean circumpolar brittle star Ophionotus victoriae (Ophiuridae) revealed from mtDNA and single-nucleotide polymorphism data 

Galaska, Matthew P; Sands, Chester J; Santos, Scott R; Halanych, Kenneth M; Mahon, Andrew R (2019-04-29)
Marine systems have traditionally been thought of as "open" with few barriers to gene flow. In particular, many marine organisms in the Southern Ocean purportedly possess circumpolar distributions that have rarely been ...

Discovery and evolution of novel hemerythrin genes in annelid worms 

Costa-Paiva, Elisa M.; Whelan, Nathan V; Waits, Damien S; Santos, Scott R.; Schrago, Carlos G.; Halanych, Kenneth M. (2019-04-29)
BACKGROUND: Despite extensive study on hemoglobins and hemocyanins, little is known about hemerythrin (Hr) evolutionary history. Four subgroups of Hrs have been documented, including: circulating Hr (cHr), myohemerythrin ...

Phylogenomic analyses of Crassiclitellata support major Northern and Southern Hemisphere clades and a Pangaean origin for earthworms 

Anderson, Frank E.; Williams, Bronwyn W.; Horn, Kevin M.; Erséus, Christer; Halanych, Kenneth M.; Santos, Scott R.; James, Samuel W. (2019-04-26)
BACKGROUND: Earthworms (Crassiclitellata) are a diverse group of annelids of substantial ecological and economic importance. Earthworms are primarily terrestrial infaunal animals, and as such are probably rather poor natural ...

The influence of maternal nesting behaviour on offspring survival: evidence from correlational and cross-fostering studies 

Addis, Elizabeth; Warner, Daniel; Pruett, Jenna (2019-04-22)
The maternal effect of nesting behaviour is important in oviparous species because choice of microhabitat (e.g. shade cover, temperature) can determine the environment in which embryos develop. In turn, this maternal choice ...

Data Supplement for Finding Fault in Dyer County, TN 

Johnson, John (2018-12-13)
Seismic data in SEG-2 format.

Free-Boundary Axisymmetric MHD Equilibrium 

Guazzotto, Luca (2018-07-09)
The calculation of equilibrium conditions is a common task in the study and modeling of magnetic-confinement experiments for con- trolled nuclear fusion, in which a high-temperature plasma is confined in a finite region ...

Aeroacoustics of wind musical instruments 

Giordano, Nicholas (2017-10-24)
This is a record of a dataset deposit.

Explaining the Railsback stretch in terms of the inharmonicity of piano tones and sensory dissonance 

Giordano, Nicholas J. (2015-10-26)
The perceptual results of Plomp and Levelt for the sensory dissonance of a pair of pure tones are used to estimate the dissonance of pairs of piano tones. By using the spectra of tones measured for a real piano, the effect ...

Simulation studies of a recorder in three dimensions 

Giordano, Nicholas J. (2015-10-12)
The aeroacoustics of a recorder are explored using a direct numerical simulation based on the Navier–Stokes equations in three dimensions. The qualitative behavior is studied using spatial maps of the air pressure and ...

Bounded Complete Embedding Graphs, Extended Version 

Aust, Jennifer Katherine (2015-07-08)
This is the extended version of my dissertation, "Bounded Complete Embedding Graphs." This version is presented in three parts, each in a separate file. [Part 1] Bounded Complete Embedding Graphs [Part 2] Extension ...