Open Access. Powered by Scholars. Published by Universities.®

Life Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Western Kentucky University

Earth Sciences

Keyword
Publication Year
Publication
Publication Type
File Type

Articles 1 - 30 of 187

Full-Text Articles in Life Sciences

Alfred Russel Wallace Notes 29. Extraterrestrial Entertainment: Are We Being Monitored By Alien Beings?, Charles H. Smith Jan 2024

Alfred Russel Wallace Notes 29. Extraterrestrial Entertainment: Are We Being Monitored By Alien Beings?, Charles H. Smith

Faculty/Staff Personal Papers

Alfred Russel Wallace (1823−1913) was an early advocate for the rational assessment of likelihood of extraterrestrial life. Current efforts to evaluate the situation have ranged from the heavily self-indulgent to the more objective, and it is still often difficult to decide just how much of the information we are receiving on the subject is dependable. An attempt is made here to cut through the haze and reduce the matter to elementals.


Alfred Russel Wallace Notes 25. Wallace And The 'Physical Environment'., Charles H. Smith Apr 2023

Alfred Russel Wallace Notes 25. Wallace And The 'Physical Environment'., Charles H. Smith

Faculty/Staff Personal Papers

Alfred Russel Wallace’s natural selection essay of 1858 has been held to frame a greater role for the physical environment in forcing selection regimes than we find in Darwin’s writings, but here that verdict is challenged by a re-examination of both the essay itself, and period usage of the term ‘physical.’


Comparison Of Groundwater Chemistry And Associated Biodiversity Of Sulfidic Karst Habitats In Southcentral Kentucky, Kendall Wheeler Jan 2023

Comparison Of Groundwater Chemistry And Associated Biodiversity Of Sulfidic Karst Habitats In Southcentral Kentucky, Kendall Wheeler

Mahurin Honors College Capstone Experience/Thesis Projects

In most ecosystems, primary production is conducted by plants or photosynthetic microbes; however, extremophilic sulfur-oxidizing bacteria can use hydrogen sulfide gas (H2S) as an electron donor to produce metabolic energy in a type of metabolism called chemoautotrophy. These ecosystems are a prominent feature of some karst landscapes, and two have been observed in the Mammoth Cave system, Sulphur River in Parker Cave and Marianne’s Pass in Mammoth Cave National Park respectively.

Sulfidic water is ubiquitous in southcentral Kentucky and is strongly associated with hydrocarbon deposits. This oil boom of the 1880s in this region predates most environmental regulation and records …


Factors Influencing Tree Growth In A Bottomland Hardwood Along The Green River In Kentucky, Caleb Miller May 2022

Factors Influencing Tree Growth In A Bottomland Hardwood Along The Green River In Kentucky, Caleb Miller

Masters Theses & Specialist Projects

In bottomland hardwood forests, large fluctuations in moisture availability can lead to stress from both flooded and drought conditions. These forests can have a complex species composition with different water use and drought strategies. The bottomlands in which these species co-occur can have a complex spatial distribution of alluvial sediments due to the meandering and migration of river or stream channels, which may impact the hydrology, nutrient dynamics, and productivity. At Western Kentucky University's Green River Preserve, approximately 9 ha of bottomland hardwood forest were planted in 2006. Although these hardwoods have received equal amounts of sunlight, rainfall, and wind, …


Antibiotic Resistant Gene Concentrations In Bacteria In Groundwater From Agricultural Waste, Koji Barnaby Jan 2021

Antibiotic Resistant Gene Concentrations In Bacteria In Groundwater From Agricultural Waste, Koji Barnaby

Mahurin Honors College Capstone Experience/Thesis Projects

The overuse of antibiotics has led to an increase in antibiotic resistant bacteria since some antibiotics are sent into the wastewater system by waste produced by both humans and agriculture, making exposure to these bacteria more likely. The evolution of these bacteria in groundwater is of particular concern, as groundwater is used as a source of drinking water, and infections by these bacteria would be more difficult to treat. There are no policies in place to monitor or regulate antibiotic resistance bacteria in groundwater, leaving the threat to public health unknown. The study area of Crumps Cave in Smiths Grove, …


Impacts Of Forest Management And Timber Harvest Practices On Karst Critical Zone Processes In Tongass National Forest, Alaska, Anna Gwendolyn Harris Oct 2020

Impacts Of Forest Management And Timber Harvest Practices On Karst Critical Zone Processes In Tongass National Forest, Alaska, Anna Gwendolyn Harris

Masters Theses & Specialist Projects

This study characterizes the throughfall, hydrogeochemistry, dissolution rates, and carbon sources of two proximate temperate rainforest cave systems within the Tongass National Forest in Southeast Alaska (Tongass). Study sites include: an old-growth forest, characterized by having never been logged (containing Walkabout Cave system); and a previously logged – within thirty years, second-growth forest (containing Zina Cave system). Precipitation data were recorded over a five-month period at 10-minute intervals, to understand the effects of throughfall between the altering old and second-growth canopies. At each major spring for the two cave systems, high-resolution data were collected from June 29 through November 21, …


Analysis Of Permaculture’S Water Conservation And Crop Supporting Abilities, Hannah Chaney May 2019

Analysis Of Permaculture’S Water Conservation And Crop Supporting Abilities, Hannah Chaney

Mahurin Honors College Capstone Experience/Thesis Projects

In the Middle East, virtually all agriculturally viable land is under high threat of desertification due to poor land and resource management and climate change. Mulching using straw flakes (straw mulch permaculture) is a method commonly used in successful dry land permaculture projects in the Middle East. We proposed that straw mulch permaculture would increase the amount of soil moisture during dry periods and that this method would not impact the growth and survival of the crop. In order to test this hypothesis, we took soil samples from plots with and without straw mulch permaculture in Bowling Green, KY and …


Ua84 Sigma Chi, Wku Archives Jan 2019

Ua84 Sigma Chi, Wku Archives

WKU Archives Collection Inventories

Records created by and about the WKU chapter of Sigma Xi.


Evaluating The Influences Of Karst Hydrogeology On Freshwater Harmful Algal Blooms In Kentucky Lakes, Robert T. Schaefer Jul 2016

Evaluating The Influences Of Karst Hydrogeology On Freshwater Harmful Algal Blooms In Kentucky Lakes, Robert T. Schaefer

Masters Theses & Specialist Projects

A problem exists in Nolin River Lake and Rough River Lake in Kentucky, due to the increasing prevalence of cyanobacterial-based harmful algal blooms (CyanoHABs) and the threats they pose to local communities. These lakes were developed as artificial reservoirs from embankment. Further complicating the issue, the lakes are located within a heavily karstified region and there exists no plan or method currently for monitoring or managing CyanoHABs in a karst region with regard to groundwater inputs to the lake systems or their tributaries. A mixture of techniques and analysis methods was used to determine the best way to monitor and …


Undergraduate Research Projects Help Promote Diversity In The Geosciences, De'etra Young, Shannon R. Trimboli, Rick S. Toomey, Thomas Byl Apr 2016

Undergraduate Research Projects Help Promote Diversity In The Geosciences, De'etra Young, Shannon R. Trimboli, Rick S. Toomey, Thomas Byl

Mammoth Cave Research Symposia

No abstract provided.


Citizen Science At Mammoth Cave National Park: Integrating Research And Education, Shannon R. Trimboli Apr 2016

Citizen Science At Mammoth Cave National Park: Integrating Research And Education, Shannon R. Trimboli

Mammoth Cave Research Symposia

No abstract provided.


Modeling Activity Of The Indiana Bat (Myotis Sodalis) At Mammoth Cave National Park Using Remotely-Sensed Descriptors Of Forest Canopy Conditions, Luke E. Dodd, N, S. Skowronski, M. B. Dickinson, L. K. Rieske, M. J. Lacki Apr 2016

Modeling Activity Of The Indiana Bat (Myotis Sodalis) At Mammoth Cave National Park Using Remotely-Sensed Descriptors Of Forest Canopy Conditions, Luke E. Dodd, N, S. Skowronski, M. B. Dickinson, L. K. Rieske, M. J. Lacki

Mammoth Cave Research Symposia

No abstract provided.


Quantitative Dye Studies To Evaluate The Spill Response System For Mammoth Cave National Park, Jetara Brown, Thomas Byl, Rick S. Toomey, Lonnie Sharpe Jr. Apr 2016

Quantitative Dye Studies To Evaluate The Spill Response System For Mammoth Cave National Park, Jetara Brown, Thomas Byl, Rick S. Toomey, Lonnie Sharpe Jr.

Mammoth Cave Research Symposia

No abstract provided.


Natural Resource Condition Assessment For Mammoth Cave National Park, Cate Webb, Chris Groves, Katie Algeo Apr 2016

Natural Resource Condition Assessment For Mammoth Cave National Park, Cate Webb, Chris Groves, Katie Algeo

Mammoth Cave Research Symposia

No abstract provided.


The Max Kämper Map Of Mammoth Cave: An Nps Centennial Restoration, Tres Seymour Apr 2016

The Max Kämper Map Of Mammoth Cave: An Nps Centennial Restoration, Tres Seymour

Mammoth Cave Research Symposia

No abstract provided.


What Data Analytics Can Do For You!, Leyla Zhuhadar, J. Kirk Atkinson, Albert Meier, Ouida Meier Apr 2016

What Data Analytics Can Do For You!, Leyla Zhuhadar, J. Kirk Atkinson, Albert Meier, Ouida Meier

Mammoth Cave Research Symposia

No abstract provided.


Use Of Multiphysics Simulation To Model Environmental Conditions Associated With Bat Hibernacula Including Preliminary Indication Of Impacts On Saltpeter Vats In Mammoth Cave, Aaron Bird, Rick Olson, Rick Toomey, Aaron Addison, Rachel Bosch Apr 2016

Use Of Multiphysics Simulation To Model Environmental Conditions Associated With Bat Hibernacula Including Preliminary Indication Of Impacts On Saltpeter Vats In Mammoth Cave, Aaron Bird, Rick Olson, Rick Toomey, Aaron Addison, Rachel Bosch

Mammoth Cave Research Symposia

No abstract provided.


The Effect Of Faulting On Past And Present Hydrogeology In Long Cave, Mammoth Cave National Park, Rick Olson, Rick S. Toomey Apr 2016

The Effect Of Faulting On Past And Present Hydrogeology In Long Cave, Mammoth Cave National Park, Rick Olson, Rick S. Toomey

Mammoth Cave Research Symposia

No abstract provided.


An Overview Of The Reverse Flow Patterns Of River Styx In Mammoth Cave, Kentucky: 2009-2012, Shannon R. Trimboli, Kim Weber, Susan Ryan, Rick S. Toomey Apr 2016

An Overview Of The Reverse Flow Patterns Of River Styx In Mammoth Cave, Kentucky: 2009-2012, Shannon R. Trimboli, Kim Weber, Susan Ryan, Rick S. Toomey

Mammoth Cave Research Symposia

No abstract provided.


Measurement Of Inorganic Carbon Fluxes From Large River Basins In South Central Kentucky Karst, Connor Salley, Chris Groves Apr 2016

Measurement Of Inorganic Carbon Fluxes From Large River Basins In South Central Kentucky Karst, Connor Salley, Chris Groves

Mammoth Cave Research Symposia

No abstract provided.


Tracing Carbon In Karst Environments In South-Central Kentucky To Identify Changes In Groundwater Dynamic Under Varying Land Uses, Chelsea Ballard, Jason Polk, Kegan Mcclanahan Apr 2016

Tracing Carbon In Karst Environments In South-Central Kentucky To Identify Changes In Groundwater Dynamic Under Varying Land Uses, Chelsea Ballard, Jason Polk, Kegan Mcclanahan

Mammoth Cave Research Symposia

No abstract provided.


Ongoing Geographic Documentation Of The Mammoth Cave System And Related Caves, Pat Kambesis, Bob Osburn Apr 2016

Ongoing Geographic Documentation Of The Mammoth Cave System And Related Caves, Pat Kambesis, Bob Osburn

Mammoth Cave Research Symposia

No abstract provided.


Strip Adaptive Cluster Sampling With Application To Cave Crickets, Kurt Lewis Helf, Tom Philippi, Bill Moore, Lillian Scoggins Apr 2016

Strip Adaptive Cluster Sampling With Application To Cave Crickets, Kurt Lewis Helf, Tom Philippi, Bill Moore, Lillian Scoggins

Mammoth Cave Research Symposia

No abstract provided.


Organization And Development Of The Eyes Of Ptomaphagus Hirtus, The Troglobitic Small Carrion Beetle Of Mammoth Cave, Markus Friedrich, Jasmina Kulacic, Elke Buschbeck Apr 2016

Organization And Development Of The Eyes Of Ptomaphagus Hirtus, The Troglobitic Small Carrion Beetle Of Mammoth Cave, Markus Friedrich, Jasmina Kulacic, Elke Buschbeck

Mammoth Cave Research Symposia

No abstract provided.


Evaluating The Energetic Value Of Lepidoptera Using Bomb Calorimetry, Shelby A. Fulton, Luke E. Dodd, Lynne K. Rieske Apr 2016

Evaluating The Energetic Value Of Lepidoptera Using Bomb Calorimetry, Shelby A. Fulton, Luke E. Dodd, Lynne K. Rieske

Mammoth Cave Research Symposia

No abstract provided.


Summary Of 2015 Winter Bat Monitoring At Mammoth Cave National Park, Laura Shultz, Chris Clark, Rick Toomey, Shannon Trimboli Apr 2016

Summary Of 2015 Winter Bat Monitoring At Mammoth Cave National Park, Laura Shultz, Chris Clark, Rick Toomey, Shannon Trimboli

Mammoth Cave Research Symposia

No abstract provided.


The Activity Of Myotis Sodalis And Myotis Septentrionalis Changes On The Landscape Of Mammoth Cave National Park Following The Arrival Of White-Nose Syndrome, Rachael Griffitts, Luke E. Dodd, Michael J. Lacki Apr 2016

The Activity Of Myotis Sodalis And Myotis Septentrionalis Changes On The Landscape Of Mammoth Cave National Park Following The Arrival Of White-Nose Syndrome, Rachael Griffitts, Luke E. Dodd, Michael J. Lacki

Mammoth Cave Research Symposia

No abstract provided.


Video Presentation: Monitoring Cave Organisms, Cumberland Piedmont Inventory And Monitoring Network, Kurt Helf, Steven Thomas, Michael Durham Apr 2016

Video Presentation: Monitoring Cave Organisms, Cumberland Piedmont Inventory And Monitoring Network, Kurt Helf, Steven Thomas, Michael Durham

Mammoth Cave Research Symposia

No abstract provided.


Conducting A Biological Inventory Of Sloan’S Crossing Pond, Miranda Thompson, Jason A. Matthews, Christy Soldo Apr 2016

Conducting A Biological Inventory Of Sloan’S Crossing Pond, Miranda Thompson, Jason A. Matthews, Christy Soldo

Mammoth Cave Research Symposia

No abstract provided.


The Effects Of Rainfall On Vernal Herbs, Janis Lemaster, Albert Meier Apr 2016

The Effects Of Rainfall On Vernal Herbs, Janis Lemaster, Albert Meier

Mammoth Cave Research Symposia

No abstract provided.