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Articles 1 - 6 of 6
Full-Text Articles in Organisms
Chytridiomycota In Tree Bark, Paige Strasko
Chytridiomycota In Tree Bark, Paige Strasko
Honors College
Chytridiomycota is a phylum of microscopic aquatic fungi that form motile spores that typically have a single posterior flagellum, thus they require water to disperse (James et al., 2000). Chytridiomycota, collectively called chytrids, have round shapes with structures called rhizoids that absorb nutrients and anchor them to their substrate (Mueller et al., 2004). Chytrids are typically found in aquatic environments and soils since zoospores require water to germinate (James et al., 2000), but they also have been found in a number of unexpected environments. Chytrids are difficult to find because they are microscopic and have time-sensitive life cycles (Mueller et …
A Biogeographical Assessment Of Arctic Marine Fungi, Bentley E. Simpson
A Biogeographical Assessment Of Arctic Marine Fungi, Bentley E. Simpson
Honors College
Marine fungi play a crucial role in recycling nutrients and channeling energy to higher trophic levels in the world oceans. Despite their critical role, their distributions and community composition, particularly in the Arctic, are largely unknown. This study reveals depth-related trends of abundance, diversity, and community composition of Arctic marine fungi through analysis of data obtained in the Tara Oceans expedition. With samples from surface (0-50 m), deep chlorophyll max (50-200 m), and mesopelagic (200-1000 m) depths, relative abundance, operational taxonomic unit (OTU) richness, and diversity were found to increase as a function of depth. Basidiomycota and Ascomycota were found …
Silence Is The Loudest Sound, Emma Christian
Silence Is The Loudest Sound, Emma Christian
Honors College
Rhinoceros poaching is an act of killing a rhinoceros in order to take its horn, which is then used for human consumption or for cultural traditions. Both the Asian and the African rhinoceros are targets because of the demand from China, Vietnam, Yemen, and other countries around the world. Traditional Chinese Medicine practice is the main demand for rhinoceros horn and this demand in rhinoceros horn has caused an increase in the black market. Conservation of the rhinoceros is decreasing primarily because the price of rhinoceros horn is more than double the average household income in South Africa, thus making …
Improved Detection Of Streptococcus Equi Subspecies Equi In Drinking Water, Lily A. Mclaughlin
Improved Detection Of Streptococcus Equi Subspecies Equi In Drinking Water, Lily A. Mclaughlin
Honors College
Streptococcus equi subspecies equi (S. equi) is the causative agent of strangles, a contagious respiratory disease of horses. Transmission of the bacteria can occur when animals share water sources. Detection of S. equi in water could improve strangles surveillance and move towards eradication of the disease. The aims of this study were to determine the optimal membrane pore size for bacterial retention from an aqueous suspension, to determine the likely dispersion pattern of S. equi contaminated mucus in a water bucket to develop a collection technique to be used by veterinarians, and to find the sensitive range for …
Territorial Aggression Increases Along An Urban Gradient In Resident But Not Migratory Song Sparrows, Darlene Turcotte
Territorial Aggression Increases Along An Urban Gradient In Resident But Not Migratory Song Sparrows, Darlene Turcotte
Honors College
During the breeding season, birds behave more aggressively toward rivals to maintain and defend territories. Resident birds are thought to be more aggressive than migratory birds because they need to maintain a territory year round. Furthermore, birds in urban environments can exhibit more aggressive behaviors than their rural counterparts because of the bolder behavioral characteristics required to colonize urban habitats. In this study, we investigated how migration strategy and landscape composition interact to affect territory defense in two subspecies of Song Sparrow (Melospiza melodia). To evoke an aggressive response, we simulated invasions by broadcasting songs from within a …
A Study Of The Nutritional Effect Of Grains In The Diet Of A Dog, Kristyn M. Souliere
A Study Of The Nutritional Effect Of Grains In The Diet Of A Dog, Kristyn M. Souliere
Honors College
The present study was designed to address the prevalence of the lack of knowledge for what owners are feeding their dogs, and to determine if grain should be within the diet. It was hypothesized that a bag of feed containing protein at no specific level, with a low level of grain will be more beneficial for the animal, and that a diet needs to contain grains. The crude protein, crude fat, and first five ingredients listed were compared for four bags chosen, and to the nutritional requirements for a dog. “Holistic Blend Grain Free”, contained an extremely high amount of …