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Articles 1 - 21 of 21
Full-Text Articles in Life Sciences
Effects Of Roadways On Seasonal Movement Strategies And Mate Location Success In An Imperiled Pit Viper (Crotalus Horridus), Elizabeth J. Noble
Effects Of Roadways On Seasonal Movement Strategies And Mate Location Success In An Imperiled Pit Viper (Crotalus Horridus), Elizabeth J. Noble
Graduate Research Showcase
A detailed understanding of animal movement behavior is fundamental to effective conservation and management. Within populations, a diversity of movement strategies can be displayed in search of critical resources, and these strategies are influenced by multiple interacting factors related to individuals and the environment. Mating partners are one critical resource that often serves as a prominent selective force shaping movement during mating seasons. For many large-bodied snakes, such as pit vipers (Viperidae: Crotalinae), male mate- searching movements are the primary determinant of mate location success. During this time, males incur significant risks associated with elevated movement. In an increasingly human- …
Operation Shark: Addressing The Negative Portrayal Of Sharks In Media, Michael R. O'Shea
Operation Shark: Addressing The Negative Portrayal Of Sharks In Media, Michael R. O'Shea
Masters Theses
Sharks are some of the most well adapted and effective animals in the animal kingdom. Unfortunately, they are also some of the most feared. For many people the word shark evokes images of vicious attacks like those seen in movies such as Jaws. Sharks have also been negatively portrayed in the media. This negative portrayal of sharks has led to misconceptions about sharks that have damaged their populations. Efforts have been made to raise awareness and fight common misconceptions of sharks. However, many people still hold on to the incorrect ideas they have about sharks. This thesis will examine the …
From Pixels To Plants: Remote Sensing Of California Invasive Plants, Kenneth Rangel
From Pixels To Plants: Remote Sensing Of California Invasive Plants, Kenneth Rangel
Master's Projects and Capstones
Invasive plants cause significant impacts to ecosystems, the economy, and human health. California has experienced significant plant invasions and is well suited to future invasion because of its Mediterranean climate and human disturbance. Eradication or control of invasive plant species requires a detailed understanding of their spatial distribution, which typically involves on the ground surveys that can be expensive or inconsistent. Remote sensing offers a potential alternative or supplement to in-person invasive plant mapping. This study performed a comparative analysis of 41 remote sensing studies that mapped the distribution of California invasive plants. I found that while high spectral resolution …
Biodiversity Loss & Urban Heat: A Nature- Based Wildlife Policy For The Las Vegas Metro, Zachary Billot
Biodiversity Loss & Urban Heat: A Nature- Based Wildlife Policy For The Las Vegas Metro, Zachary Billot
Student Research
As the population of the Las Vegas Metro continues to grow, new developments expand on the periphery. As Las Vegas continues to increase in size and develop further into wildlife habitat, not only are native animals and plants endangered, but residents are at risk of increasingly dangerous urban heat given the increase in impervious cover that makes Las Vegas the 2nd fastest warming metro in the U.S. This policy brief examines current policy and practice in place to highlight the need for positive human-wildlife interaction that will address the growing threat of biodiversity loss and heat vulnerability. This policy brief …
Reef Ecosystem Conservation For The Hawaiian Islands: The Impacts Of Ocean Warming And Acidification On Benthic Reef Populations, Samantha Roberts
Reef Ecosystem Conservation For The Hawaiian Islands: The Impacts Of Ocean Warming And Acidification On Benthic Reef Populations, Samantha Roberts
Student Theses 2015-Present
This paper explores the anthropogenic effects of rapid climate change and ocean acidification on benthic coral populations along the Hawaiian archipelago. Moreover, the reliance of Hawaiian coastal communities on coral reefs for sustenance and economic prosperity is evaluated to determine the importance of reef ecosystem conservation for the prosperity of Hawaii. Chapter 1 introduces the importance of coral and supplies quantitative data on declining coral populations traditional to Hawaii, as a result of ocean warming and acidification. Empirical data from prior, prominent studies, combined with my own, will be discussed. Chapter 2 outlines the ecology of Hawaiian reef ecosystems, the …
Impact Of Changing Climate On Bryophyte Contributions To Terrestrial Water, Carbon, And Nitrogen Cycles, Mandy L. Slate, Anita Antoninka, Lydia Bailey, Monica B. Berdugo, Des A. Callaghan, Mariana Cárdenas, Matthew W. Chmielewski, Nicole J. Fenton, Hannah Holland-Moritz, Samantha Hopkins, Mélanie Jean, Bier Ekaphan Kraichak, Zoë Lindo, Amelia Merced, Tobi Oke, Daniel Stanton, Julia E. Stuart, Daniel Tucker, Kirsten K. Coe
Impact Of Changing Climate On Bryophyte Contributions To Terrestrial Water, Carbon, And Nitrogen Cycles, Mandy L. Slate, Anita Antoninka, Lydia Bailey, Monica B. Berdugo, Des A. Callaghan, Mariana Cárdenas, Matthew W. Chmielewski, Nicole J. Fenton, Hannah Holland-Moritz, Samantha Hopkins, Mélanie Jean, Bier Ekaphan Kraichak, Zoë Lindo, Amelia Merced, Tobi Oke, Daniel Stanton, Julia E. Stuart, Daniel Tucker, Kirsten K. Coe
Michigan Tech Publications, Part 2
Bryophytes, including the lineages of mosses, liverworts, and hornworts, are the second-largest photoautotroph group on Earth. Recent work across terrestrial ecosystems has highlighted how bryophytes retain and control water, fix substantial amounts of carbon (C), and contribute to nitrogen (N) cycles in forests (boreal, temperate, and tropical), tundra, peatlands, grasslands, and deserts. Understanding how changing climate affects bryophyte contributions to global cycles in different ecosystems is of primary importance. However, because of their small physical size, bryophytes have been largely ignored in research on water, C, and N cycles at global scales. Here, we review the literature on how bryophytes …
The Decline In Monarch Butterfly, Danaus Plexippus, Populations: An Example Of The Global Threat To Biodiversity, Olivia Sidoti
The Decline In Monarch Butterfly, Danaus Plexippus, Populations: An Example Of The Global Threat To Biodiversity, Olivia Sidoti
Honors Projects
Biodiversity encompasses the variety of all life on Earth and how these aspects of nature interact with each other. To have stable and abundant biodiversity, vast amounts of species and organisms are required within an ecosystem. As a result of the increase in negative impacts of human activities and behaviors on the health of nature, biodiversity has been decreasing. An example of the decrease in biodiversity is depicted by the recent decline of the monarch butterfly species. The monarch butterfly is an iconic North American insect that is experiencing a decline in its population due to threats such as deforestation, …
An Analysis On The Capacity Of Visual Art To Promote Conservation Efforts, Devi Bell
An Analysis On The Capacity Of Visual Art To Promote Conservation Efforts, Devi Bell
Honors Projects
In recent decades, we have become more aware of the ways in which anthropogenic actions are harming Earth’s climate, ecosystems, and overall stability. Scientists generally agree on the urgency of our situation, yet the public may find difficulty in comprehending the multitude of information on it. This study aims to educate the public on biodiversity loss and related ecological issues in Ohio by discussing these topics through the medium of visual art. Five pieces involving different scientific subject matter and art mediums were created and displayed for participants to view. Participants completed two surveys, one before viewing the art and …
Population Monitoring Of Beaver Mountain Groundsel, Autumn Gudmundsen, Loreen Allphin, Madison Huie, Steve Flinders
Population Monitoring Of Beaver Mountain Groundsel, Autumn Gudmundsen, Loreen Allphin, Madison Huie, Steve Flinders
Library/Life Sciences Undergraduate Poster Competition 2024
2nd Place Poster Design
• Beaver Mountain groundsel, Packera castoreus, is a rare flowering plant, endemic to the Tushar Mountains of Utah (fig.1 & 2).
• P. castoreus has been classified as high priority for monitoring and conservation by the Utah Native Plant Society1.
• The plants in the Tushars are some of the least studied in Utah.
• There have been conservation concerns for rare alpine species recently due to increased threats. Threats to this species include:
• Grazing from large ungulates (mountain goats, deer, & elk)2
• Human impacts, especially hiking1
• Climate change1
• To better understand …
Ecological And Educational Impacts Of A Living Shoreline On St. Simons Island, Georgia, Usa, C. Tate Holbrook, Cameron Atkinson, Jordan Fountain, Stephanie Knox, Jan Mackinnon
Ecological And Educational Impacts Of A Living Shoreline On St. Simons Island, Georgia, Usa, C. Tate Holbrook, Cameron Atkinson, Jordan Fountain, Stephanie Knox, Jan Mackinnon
Georgia Journal of Science
Living shorelines encompass a range of nature-based alternatives to traditional coastal armoring structures. In addition to shoreline stabilization and protection, living shorelines are intended to meet conservation goals such as restoring habitat, delivering ecosystem services, and promoting ecological resilience to climate change. While early results have been promising, further monitoring is needed to better understand and evaluate the performance of living shorelines across a range of designs and environmental contexts, thereby informing coastal management. Nature-based shoreline protection is relatively new in Georgia, USA, where in 2015 the state’s fourth living shoreline was constructed of oyster shell and native plants on …
Supply Is Not Limulus: Research Review Of Horseshoe Crab Conservation In The Face Of Intense Pharmaceutical Demand, Zoya Galeev
Supply Is Not Limulus: Research Review Of Horseshoe Crab Conservation In The Face Of Intense Pharmaceutical Demand, Zoya Galeev
University Honors Theses
Horseshoe crabs are being used by the pharmaceutical industry to conduct endotoxin tests using LAL derived from the organism’s blood to ensure safe medical practice. Their annual collection and bleeding, while not always leading to mortality, affects horseshoe crab behavior and health. This research seeks to understand how the American horseshoe crab, L. polyphemus, is being used by pharmaceutical agencies and the implications that their harvesting has on the industry and the conservation of the species. Studies were collected from the past decade across two databases, Web of Science (WOS) and PubMed, to assess present conservation techniques to reduce …
Gis And Genetic Diversity- Case Studies In Stylosanthes, P G. Jones, M C. Sawkins, B L. Maass, P C. Kerridge
Gis And Genetic Diversity- Case Studies In Stylosanthes, P G. Jones, M C. Sawkins, B L. Maass, P C. Kerridge
IGC Proceedings (1997-2023)
We present a new technique for mapping the potential occurrence of wild germplasm based in climate data and show its application to six important Stylosanthes species. The method can be used to develop hypotheses as to the distribution for purposes of collection and/or in situ conservation. It can also be used to investigate genetic diversity with a species. We present some first results based in isozyme data from S. guianensis.
Biodiverse Forage Mixtures For Bees And Beef Cattle, J. O. C. Kubesch, S. P. Greiner, G. J. Pent, J. L. Reid, B. F. Tracey
Biodiverse Forage Mixtures For Bees And Beef Cattle, J. O. C. Kubesch, S. P. Greiner, G. J. Pent, J. L. Reid, B. F. Tracey
IGC Proceedings (1997-2023)
Introduction: Beef cattle performance in the southeastern US is limited by tall fescue (TF) toxicosis. Native warm season grasses (NWSGs) can provide alternative forage for cattle and reduce TF toxicosis. Pollinator populations, especially bees, also have been declining across North America. Introducing native wildflowers into tall fescue grasslands might improve pollinator populations. An ongoing grazing experiment in central Virginia USA is testing the feasibility of integrating wildflowers and native grasses as a way to generate ecosystem services.
Objectives: This study sought to determine whether including native grasses and wildflowers in tall fescue pasture systems could improve beef heifer performance.
Methods: …
Surveys Of Aphonopelma Hentzi In Missouri: Conservation Efforts Through Population, Genetics, And Habitat Studies, Anderson B. Spencer Mr., Becky Hansis-O'Niell
Surveys Of Aphonopelma Hentzi In Missouri: Conservation Efforts Through Population, Genetics, And Habitat Studies, Anderson B. Spencer Mr., Becky Hansis-O'Niell
Undergraduate Research Symposium
Aphonopelma hentzi and other tarantula species are greatly understudied organisms. In the Missouri regions there is little knowledge on their mating patterns, gene diversity, or population sizes. The focal glades in this experiment display regional fragmentation, which could prevent tarantulas from traveling and mating between regions of their glades. Due to the lack of knowledge surrounding them, methods for determining gene diversity are harmful to the organism. Our recent work has shown that it is possible to extract genetic information from the molts of burrowing tarantulas. This will allow us to safely determine the lineages and interbreeding patterns of the …
A Computational Profile Of Invasive Lionfish In Belize: A New Insight On A Destructive Species, Joshua E. Balan
A Computational Profile Of Invasive Lionfish In Belize: A New Insight On A Destructive Species, Joshua E. Balan
The Journal of Purdue Undergraduate Research
Since their discovery in the region in 2009, invasive Indonesian-native lionfish have been taking over the Belize Barrier Reef. As a result, populations of local species have dwindled as they are either eaten or outcompeted by the invaders. This has led to devastating losses ecologically and economically; massive industries in the local nations, such as fisheries and tourism, have suffered greatly. Attempting to combat this, local organizations, from nonprofits to ecotourism companies, have been manually spear-hunting them on scuba dives to cull the population. One such company, Reef Conservation Institute (ReefCI), operating out of Tom Owens Caye outside of Placencia, …
Every Little Thing, Dereck Daschke
Every Little Thing, Dereck Daschke
Journal of Religion & Film
This is a film review of Every LIttle Thing (2024), directed by Sally Aitken.
A Coupled Model Of Population, Poaching, And Economic Dynamics To Assess Rhino Conservation Through Legal Trade, Henry Doyle, Kylie Champagne, Ditto Rajpal, Grace Seebeck, David J. Gerberry
A Coupled Model Of Population, Poaching, And Economic Dynamics To Assess Rhino Conservation Through Legal Trade, Henry Doyle, Kylie Champagne, Ditto Rajpal, Grace Seebeck, David J. Gerberry
Spora: A Journal of Biomathematics
Rhinoceros populations in Africa are in peril largely due to the high value of their horns and the poaching that ensues. The strategy of legalizing the international trade of rhino horn is receiving increased support among both the people and government officials in Africa. Many in the international conservation community remain opposed to the idea. The legalization strategy is straightforward in theory: legalizing the trade of rhino horn will introduce a large quantity of horn to the market, the increased supply will lead to lower prices for rhino horn, and lower prices will reduce the overall poaching pressure these animals …
On The Border Of Extinction And Speciation, Polygala Seyfegoluensis (Polygalaceae), A New Species From Marshy Habitat, Central Türkiye: Under The Threat Of Climate Change, Water Retreat, And Subsequent Degradation, Ali̇ Aslan Dönmez, Zübeyde Uğurlu Aydin, İbrahi̇m Sirri Yüzbaşioğlu
On The Border Of Extinction And Speciation, Polygala Seyfegoluensis (Polygalaceae), A New Species From Marshy Habitat, Central Türkiye: Under The Threat Of Climate Change, Water Retreat, And Subsequent Degradation, Ali̇ Aslan Dönmez, Zübeyde Uğurlu Aydin, İbrahi̇m Sirri Yüzbaşioğlu
Turkish Journal of Botany
Polygala seyfegoluensis Dönmez, Uğurlu & Yüzb. (Polygalaceae) is herein described and illustrated as a new species from Kırşehir Province around Seyfe Lake in Central Türkiye. This new species is similar to P. pruinosa and P. supina is distinctly characterized by its prostrate habit, nearly glabrous and smaller flower parts, and an unwinged capsule. A phylogenetic analysis was conducted to show the placement of the new species within selected Polygala taxa using the trnL-F and rbcL markers. Based on the field observation, an evolutionary scenario is proposed for the new species under the driving forces of climate change, the shrinking of …
Bridging Biological Systems With Social Behavior, Conservation, Decision Making, And Well-Being Through Hybrid Mathematical Modeling, Maggie Renee Sullens
Bridging Biological Systems With Social Behavior, Conservation, Decision Making, And Well-Being Through Hybrid Mathematical Modeling, Maggie Renee Sullens
Faculty Publications and Other Works -- Mathematics
This dissertation defense presentation highlights the power of hybrid mathematical modeling and addresses crucial issues such as:
1️. The Impact of Industry Collapse on Community Mental Health: A Complex Contagion ODE Model.
2️. Budget Allocation and Illegal Fishing: A Game Theoretic Model.
3️. Reactive Scope Model with an Energy Budget and Multiple Mediators: An ODE Model
The overarching theme of Hybrid Mathematical Modeling beautifully captures the essence of this work, demonstrating its potential to unravel ecological issues while addressing the intricate interactions between humans and the environment.
Limitations Of Invasive Snake Control Tools In The Context Of A New Invasion On An Island With Abundant Prey, Shane R. Siers, Melia G. Nafus, Jereid E. Calaor, Rachel M. Volsteadt, Matthew S. Grassi, Megan Volsteadt, Aaron F. Collins, Patrick D. Barnhart, Logan T. Huse, Amy A. Yackel Adams, Diane L. Vice
Limitations Of Invasive Snake Control Tools In The Context Of A New Invasion On An Island With Abundant Prey, Shane R. Siers, Melia G. Nafus, Jereid E. Calaor, Rachel M. Volsteadt, Matthew S. Grassi, Megan Volsteadt, Aaron F. Collins, Patrick D. Barnhart, Logan T. Huse, Amy A. Yackel Adams, Diane L. Vice
USDA Wildlife Services: Staff Publications
In October 2020, a new population of invasive brown treesnakes (Boiga irregularis) was discovered on the 33-ha Cocos Island, 2.5 km off the south coast of Guam, United States. Cocos Island is a unique conservation resource, providing refuge for many lizards and birds, including endangered species, which were extirpated from mainland Guam by invasive predators including brown treesnakes. We sought to evaluate the usefulness of toxic baiting with acetaminophen-treated carrion baits and cage trapping, common tools for the control of brown treesnakes on mainland Guam, as potential eradication tools on Cocos Island. We evaluated multiple bait types and …
Factors Associated With Acoustic Bat Presence During Spring Emergence In The Appalachian Mountains Of Western Virginia, Emily Kirk Pody
Factors Associated With Acoustic Bat Presence During Spring Emergence In The Appalachian Mountains Of Western Virginia, Emily Kirk Pody
Theses, Dissertations and Capstones
Studies of threats that bats face during hibernation have increased in response to white-nose syndrome (WNS), a fungal disease that has ravaged North American bat populations. However, impacts of WNS on bat ecology during spring emergence, when bats are potentially recovering from infection and allocating resources for reproduction, is relatively understudied. As more bat species become listed at the federal and state level, the need to understand the factors associated with spring emergence is critical for improving conservation guidelines and habitat management practices. Acoustic monitoring is an efficient method for monitoring bat presence for prolonged periods of time, giving biologists …