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- Algivorous minnows (1)
- Amphibian decline (1)
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- Brook salamanders<br />Hybridization<br />Morphology<br />Salamanders -- Missouri -- Onondaga Cave State Park (1)
- Calcium-binding proteins<br />Muscarinic receptors<br />Nanoparticles<br />Zinc oxide (1)
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- Frogs -- Vocalization -- North America<br />Hylidae -- Vocalization -- North America<br />Larynx -- Anatomy (1)
- Impacts of predation risk and development on susceptibility of North American anurans to ranaviruses (1)
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Articles 1 - 19 of 19
Full-Text Articles in Biology
Impacts Of Predation Risk And Development On Susceptibility Of North American Anurans To Ranaviruses, Nathan Alden Haislip
Impacts Of Predation Risk And Development On Susceptibility Of North American Anurans To Ranaviruses, Nathan Alden Haislip
Masters Theses
For over three decades, amphibian populations have been declining across the globe. Emerging infectious diseases are responsible for some of these declines. Ranaviruses have caused die-offs in wild amphibian populations on 4 continents, in 5 Canadian provinces, and in over 25 U.S. states. In order to understand host-pathogen dynamics, it is critical to establish baseline information on species susceptibility and the effects of natural stressors. The goal of my thesis research was to quantify the effects of anuran development and exposure to invertebrate predators on species-specific susceptibility to ranavirus. My experiments were designed in factorial arrangements, and consisted of exposure …
Characterizing Cell-Cell And Cell-Surface Interactions In The Rhizobacterium Azospirillum Brasilense, Calvin Shay Green
Characterizing Cell-Cell And Cell-Surface Interactions In The Rhizobacterium Azospirillum Brasilense, Calvin Shay Green
Masters Theses
Microaerophilic and chemotaxic diazotrophs, azospirilla are found in close association with certain cereals such as durum wheat and maize and are active in enriching these ecological niches with the macronutrient nitrogen as ammonia. Regarded as highly pleomorphic, Azospirillum spp. are highly motile, using either a single polar flagellum when grown in liquid environments or peritrichous lateral flagella in viscous environments. Additionally, azospirilla are able to adhere onto surfaces as a biological film or aggregate cell-to-cell as nonproliferating flocculi, and these two processes having been suggested as positively affecting the survival and dispersal of the bacteria in the soil. Even though …
Avian Community Structure And Diversity In Relation To Coastal Development In The Sian Ka’An Biosphere Reserve And Riviera Maya, Quintana Roo, Mexico, Angeles A. Raymundo Sanchez
Avian Community Structure And Diversity In Relation To Coastal Development In The Sian Ka’An Biosphere Reserve And Riviera Maya, Quintana Roo, Mexico, Angeles A. Raymundo Sanchez
Masters Theses
Habitat loss and fragmentation caused by tourist development along the eastern coast of the Yucatan Peninsula of Mexico represents a big threat to the survival of Nearctic-Neotropical migratory songbirds. This habitat plays a crucial role for successful migration for many migratory birds. However, the effects of habitat loss and fragmentation on these birds have not been well documented in the region. From September- December, 2006-2008, we mist-netted and conducted transect surveys to assess the variation in the avian community among three different levels of development (high, medium and low). The study area included two small reserves (10-20 ha) in the …
Bat Habitat Use And Roost Tree Selection For Northern Long-Eared Myotis (Myotis Septentrionalis) In North-Central Ohio, Timothy J. Krynak
Bat Habitat Use And Roost Tree Selection For Northern Long-Eared Myotis (Myotis Septentrionalis) In North-Central Ohio, Timothy J. Krynak
Masters Theses
Understanding roosting behavior and habitat use of bats is an important component when unraveling life histories and their ecology. Ohio remains under-represented in published information of bats compared to surrounding states. This large scale survey in 2002–2003 and Myotis septentrionalis radio telemetry study in 2005 is one of the few conducted within the state and is the first in Ohio’s North-Central region. It is also the first study conducted where net sites were chosen randomly and spatially distributed to adequately survey bat populations within Cuyahoga Valley National Park and Cleveland Metroparks. This survey documented seven species (n = 668), with …
Prey Preference As A Function Of Feeding Experience And Prey Type In Neonate Gartersnakes (Colubridae: Thamnophis), Kathryn B. Hale
Prey Preference As A Function Of Feeding Experience And Prey Type In Neonate Gartersnakes (Colubridae: Thamnophis), Kathryn B. Hale
Masters Theses
No abstract provided.
Zinc Oxide Nanoparticle Disruption Of Store-Operated Calcium Entry In A Muscarinic Receptor Signaling Pathway, Hsiu-Jen Wang
Zinc Oxide Nanoparticle Disruption Of Store-Operated Calcium Entry In A Muscarinic Receptor Signaling Pathway, Hsiu-Jen Wang
Masters Theses
"The influences of ZnO nanoparticles on cellular responses to activation of muscarinic receptors were studied in Chinese hamster ovary cells expressing the human M3 muscarinic acetylcholine receptor. ZnO particles (20 nm) induced cytotoxicity in a time and concentration-dependent manner: following a 24 h exposure, toxicity was minimal at concentrations below 20 µg/ml but virtually complete at concentrations above 28 µg/ml. ZnO particles did not affect antagonist binding to M3 receptors or allosteric ligand effects, but increased agonist binding affinity while eliminating guanine nucleotide sensitivity. At a noncytotoxic concentration (10 µg/ml), ZnO increased resting [Ca²⁺]i from 40 to 130 nM without …
A Spatially Explicit Model To Predict Radiocesium Body Burdens In White-Tailed Deer On The Department Of Energy's Savannah River Site, Christopher W. Bobryk
A Spatially Explicit Model To Predict Radiocesium Body Burdens In White-Tailed Deer On The Department Of Energy's Savannah River Site, Christopher W. Bobryk
Masters Theses
No abstract provided.
Multiple Endpoints Of Endocrine Disruption In Gravid Watersnakes (Colubridae:Nerodia) As A Function Of Ingestion Of A Common Herbicide, Lorin Anne Neuman-Lee
Multiple Endpoints Of Endocrine Disruption In Gravid Watersnakes (Colubridae:Nerodia) As A Function Of Ingestion Of A Common Herbicide, Lorin Anne Neuman-Lee
Masters Theses
No abstract provided.
Soil Variability And Its Influence On Plant Performance, Jeremy R. Klass
Soil Variability And Its Influence On Plant Performance, Jeremy R. Klass
Masters Theses
No abstract provided.
The Seasonality Of Parasites In Illinois House Sparrows (Passer Domesticus): Effect Of Stress On Infection Parameters, Tiffany C.M. Gibson
The Seasonality Of Parasites In Illinois House Sparrows (Passer Domesticus): Effect Of Stress On Infection Parameters, Tiffany C.M. Gibson
Masters Theses
No abstract provided.
Population Ecotoxicology Of The Common Snapping Turtle In Agriculturally Impacted Lotic Ecosystems, Derrick L. Douros
Population Ecotoxicology Of The Common Snapping Turtle In Agriculturally Impacted Lotic Ecosystems, Derrick L. Douros
Masters Theses
No abstract provided.
Does Evolutionary Exposure Mediate Allelopathic Effects?, Nikki Leigh Pisula
Does Evolutionary Exposure Mediate Allelopathic Effects?, Nikki Leigh Pisula
Masters Theses
No abstract provided.
The Spatial Distribution Of Japanese Beetles, Popillia Japonica, In Soybean Fields, Stacey A. Sara
The Spatial Distribution Of Japanese Beetles, Popillia Japonica, In Soybean Fields, Stacey A. Sara
Masters Theses
No abstract provided.
A Model Cost Analysis Comparing Solar, Wind And Geothermal Energies, Including Alternatives To Changing Energy Sources, Using Texas Households And Weather, Kimberly Speed
Masters Theses
No abstract provided.
Analysis Of Eurycea Hybrid Zone In Eastern Missouri, Bonnie Jean Beasley
Analysis Of Eurycea Hybrid Zone In Eastern Missouri, Bonnie Jean Beasley
Masters Theses
"Evolutionary mechanisms are often difficult to observe in action because evolution generally works slowly over time. Hybrid zones provide a unique opportunity to observe many evolutionary processes, such as reinforcement, because of the rapid changes that tend to occur in these zones. Salamanders provide an ideal model for examining the rapid changes in populations that result from hybridization because many closely-related species lack reproductive barriers. In Missouri, a well-documented hybridization zone exists among the two subspecies Eurycea longicauda longicauda (long-tailed salamander) and E. L. melanopleura (dark-sided salamander). These salamanders inhabit caves, limestone creek beds, and abandoned mine shafts. A closely …
Laryngeal Apparatus And Call Structure In North American Hylids, Barbara Ann Catherine Fears
Laryngeal Apparatus And Call Structure In North American Hylids, Barbara Ann Catherine Fears
Masters Theses
"Although the ecological implications and structure of frog calls have been the subject of much study, little is known about the association between the laryngeal apparatus morphology and call structure in North American hylids. In this study linear measurements of the laryngeal apparatus were captured and compared to the call structures of thirteen species of North American hylids. Species examined included: Pseudacris crucifer, P. triseriata, P. ocularis, Acris crepitans blanchardi, Hyla avivoca, H. cinerea, H. gratiosa, H. chrysoscelis, H. versicolor, H. squirella, H. femoralis, H. arenicolor, and H. eximia. Six homologous landmark points were identified, and the lengths between them …
The Role Of Skeletal Development In Body Size Evolution Of Two North American Frogs, Sarah Beth Havens
The Role Of Skeletal Development In Body Size Evolution Of Two North American Frogs, Sarah Beth Havens
Masters Theses
"In order to better understand the evolution of miniaturization in Acris blanchardi, a North American Hylid with a unique life history and of ecological interest in the United States. The development and ossification sequences of 48 larvae, 5 juveniles and 5 adult A. blanchardi were examined. The adult was described by Maglia et al. (2007) to be a miniature and to display morphological novelties. In addition, 44 larvae, 2 juvenile and 5 adults of Pseudacris crucifer a closely related frog that has been suggested to be a miniature, were examined. The cranial and postcranial adult elements of this species, as …
The Capacity Of Diatom Species To Survive Ingestion By The Algivorous Minnow, Pimephales Notatus, Paul Gregory Grubach
The Capacity Of Diatom Species To Survive Ingestion By The Algivorous Minnow, Pimephales Notatus, Paul Gregory Grubach
Masters Theses
The capacity of diatom species to survive gastrointestinal passage through the algivorous minnows Pimephales notatusand Campostoma anomalum was studied. From a site on the Grand River in northeastern Ohio, 27 minnows and 7 epilithic diatom samples were taken. In order to determine whether diatom taxa varied in digestibility, live/dead ratios of diatom cells taken from the minnows’ feces were compared with live/dead ratios of cells taken from immersed rocks. Diatoms that were live/undigested at the time of collection were differentiated from dead/digested cells under light microscopy by noting the presence of chloroplasts and/or lipid droplets. Seventy-seven percent of the …
Effects Of Forest Edges On Population Dynamics In A Successional System, Kimberly Anne Lang
Effects Of Forest Edges On Population Dynamics In A Successional System, Kimberly Anne Lang
Masters Theses
No abstract provided.