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Articles 1 - 6 of 6
Full-Text Articles in Life Sciences
Impacts Of Environmental Stressors On Native South Dakota Amphibian Physiology And Survival, Danielle Jean Galvin
Impacts Of Environmental Stressors On Native South Dakota Amphibian Physiology And Survival, Danielle Jean Galvin
Dissertations and Theses
Amphibian populations around the world are declining, with some of the most likely drivers behind these declines including emerging infectious diseases and environmental contaminants. To address major gaps in the current literature, I sought to evaluate the effect of two major environmental stressors on various aspects of amphibian physiology: emerging infectious diseases and environmental contaminants. Emerging infectious diseases of amphibians include fungal, viral, and parasitic pathogens which have expanded in host range, either geographically or in competent host species. Environmental contaminants include chemicals which may be naturally occurring in the environment, or which may be introduced to the environment, often …
Measuring Selenoprotein Content In False Map Turtles (Graptemys Pseudogeographica) Along The Missouri River, Ruby A. Hawks
Measuring Selenoprotein Content In False Map Turtles (Graptemys Pseudogeographica) Along The Missouri River, Ruby A. Hawks
Honors Thesis
Metals and metalloids are becoming more prevalent in lakes and reservoirs of South Dakota which are toxic and hazardous in high concentrations or when biomagnified through trophic levels. Selenium is of particular concern as it can bind into the structures of proteins in place of other elements, changing protein structure and function within affected organisms. Zebra mussels (Dreissena polymorpha) are an invasive filter-feeding metal-bioaccumulating species that are rapidly spreading upstream through the Missouri River. They can take up selenium and directly transfer it to higher trophic level taxa. False map turtles (Graptemys pseudogeographica) are a common …
How Phylogeny And Arboreality Affect Pelvic Girdle Anatomy Of Chameleons, Dakota J. John
How Phylogeny And Arboreality Affect Pelvic Girdle Anatomy Of Chameleons, Dakota J. John
Honors Thesis
Morphological adaptations have allowed animals to inhabit different landscapes such as mountains, forests, plains, etc. These adaptations have increase in prevalence through natural selection processes in all species which allow favorable traits to be passed to offspring. Chameleons have evolved a plethora of adaptations that have allowed them to persist in different niches. One anatomical feature of chameleons that has not been well studied is the pelvic girdle. The pelvic girdle bridges the axial and appendicular skeletons in animals, so the size, shape, and orientation of the girdle is important to how the animal functions in its environment. The pelvic …
Monitoring Movement And Range Expansion Of Silver And Bighead Carp (Hypophthalmichthys Molitrix, H. Nobilis) In South Dakota Tributaries Of The Missouri River, Lindsey Ann Pearl Labrie
Monitoring Movement And Range Expansion Of Silver And Bighead Carp (Hypophthalmichthys Molitrix, H. Nobilis) In South Dakota Tributaries Of The Missouri River, Lindsey Ann Pearl Labrie
Dissertations and Theses
Invasive species, climate change, human impacts on the landscape, flooding, and drought are all dynamic factors that greatly impact the Missouri River and its tributaries in eastern South Dakota. Invasive Carp, and more specifically, Bighead (Hypophthalmichthys nobilis) and Silver Carp (H. molitrix), first invaded the Missouri River watershed in eastern South Dakota in the late 1990s and have since spread throughout the basin downstream of Gavin’s Point Dam. The first chapter of this study uses environmental DNA (eDNA) in the context of two major barriers to fish movement in the Vermillion and Big Sioux Rivers to determine potential presence and …
Application Of Hierarchical Species Distribution Models To Avian Species Of South Dakota And The Upper Missouri River Basin, Reza Goljani Amirkhiz
Application Of Hierarchical Species Distribution Models To Avian Species Of South Dakota And The Upper Missouri River Basin, Reza Goljani Amirkhiz
Dissertations and Theses
Recognizing the distributional patterns of species can inform management actions and increase scientific knowledge about species. Habitat Suitability Models (HSMs) are valuable tools in modeling species’ niches and effects of climate change and anthropogenic and natural disturbances on species’ distributions and abundances. In this dissertation, I expanded the application of hierarchical HSMs for a rare bird (Virginia’s warbler) and an economically valuable bird (ring-necked pheasant) in South Dakota. Also, we developed multiscale HSMs for grassland birds in the Upper Missouri River Basin (UMRB) to quantify current habitat associations and predict the influences of climate and landcover change associated with the …
Documenting Range Expansion Of Two Invasive Tick (Acari:Ixodidae) Species In Eastern South Dakota, Braden Wojahn
Documenting Range Expansion Of Two Invasive Tick (Acari:Ixodidae) Species In Eastern South Dakota, Braden Wojahn
Dissertations and Theses
This project documents the expanded zoogeographic ranges of the blacklegged tick (Ixodes scapularis) and lone star tick (Amblyomma americanum) within eastern South Dakota. Ticks are important when considering a “One Health” approach, as many species are competent vectors of zoonotic pathogens causing human diseases and conditions such as Lyme disease, tularemia, rickettsia, and alpha gal syndrome. The research involved constitutes two steps. First, tick surveillance was conducted in eastern counties of South Dakota, spanning March 2021 through August 2022. Surveillance took place along edge habitat at recreation areas, state and public parks, wildlife management areas and refuges, and other natural …