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In Vivo Efficacy Of Pyrantel Pamoate As A Post-Exposure Prophylactic For Rat Lungworm (Angiostrongylus Cantonensis), John Jacob, Argon Steel, Lisa Kaluna, Steven Hess, Israel Leinbach, Carmen Antaky, Robert Sugihara, Lindsey Hamilton, Peter Follett, Kathleen Howe, Steven Jacquier, Supakit Wongwiwatthananukit, Susan Jarvi 2022 University of Hawaii at Hilo

In Vivo Efficacy Of Pyrantel Pamoate As A Post-Exposure Prophylactic For Rat Lungworm (Angiostrongylus Cantonensis), John Jacob, Argon Steel, Lisa Kaluna, Steven Hess, Israel Leinbach, Carmen Antaky, Robert Sugihara, Lindsey Hamilton, Peter Follett, Kathleen Howe, Steven Jacquier, Supakit Wongwiwatthananukit, Susan Jarvi

USDA Wildlife Services - Staff Publications

Rat lungworm (Angiostrongylus cantonensis) is a neurotropic nematode, and the leading cause of eosinophilic meningitis worldwide. The parasite is usually contracted through ingestion of infected gastropods, often hidden in raw or partially cooked produce. Pharmaceutical grade pyrantel pamoate was evaluated as a post-exposure prophylactic against A. cantonensis. Pyrantel pamoate is readily available over-the-counter in most pharmacies in the USA and possesses anthelmintic activity exclusive to the gastrointestinal tract (GIT). Administering pyrantel pamoate immediately after exposure should theoretically paralyze the larvae in the GIT, causing the larvae to be expelled via peristalsis without entering the systemic circulation. In this study, pyrantel ...


Epidemiological Assessment Of Wolbachia-Based Biocontrol For Reduction Of Dengue Morbidity, Olga Vasilieva, Oscar E. Escobar, Hector J. Martinez, Pierre-Alexandre Bliman, Yves Dumont 2022 Universidad Del Valle

Epidemiological Assessment Of Wolbachia-Based Biocontrol For Reduction Of Dengue Morbidity, Olga Vasilieva, Oscar E. Escobar, Hector J. Martinez, Pierre-Alexandre Bliman, Yves Dumont

Biology and Medicine Through Mathematics Conference

No abstract provided.


De-Coupling Cell-Autonomous And Non-Cell-Autonomous Fitness Effects Allows Solution Of The Fokker-Planck Equation For The Evolution Of Interacting Populations, Steph J. Owen 2022 Cleveland Clinic Lerner Research Institute

De-Coupling Cell-Autonomous And Non-Cell-Autonomous Fitness Effects Allows Solution Of The Fokker-Planck Equation For The Evolution Of Interacting Populations, Steph J. Owen

Biology and Medicine Through Mathematics Conference

No abstract provided.


Gene Drives And The Consequences Of Over-Suppression, Cole Butler 2022 Virginia Commonwealth University

Gene Drives And The Consequences Of Over-Suppression, Cole Butler

Biology and Medicine Through Mathematics Conference

No abstract provided.


Parameter Estimation Using Nudging On The Logistic Growth Equation, Susan Rogowski 2022 Florida State University

Parameter Estimation Using Nudging On The Logistic Growth Equation, Susan Rogowski

Biology and Medicine Through Mathematics Conference

No abstract provided.


Bioeconomic Analysis In A Predator-Prey System With Harvesting: A Case Study In The Chesapeake Bay Fisheries, Iordanka Panayotova, Maila Hallare 2022 Christopher Newport University

Bioeconomic Analysis In A Predator-Prey System With Harvesting: A Case Study In The Chesapeake Bay Fisheries, Iordanka Panayotova, Maila Hallare

Biology and Medicine Through Mathematics Conference

No abstract provided.


Hepatitis B And D: A Forecast On Actions Needed To Reduce Incidence And Achieve Elimination, Scott Greenhalgh, Andrew Klug 2022 Siena College

Hepatitis B And D: A Forecast On Actions Needed To Reduce Incidence And Achieve Elimination, Scott Greenhalgh, Andrew Klug

Spora: A Journal of Biomathematics

Viral hepatitis negatively affects the health of millions, with the worst health outcomes associated with the hepatitis D virus (HDV). Fortunately, HDV is rare and requires prior infection with the hepatitis B virus (HBV) before it can establish infection and transmit. Here, we develop a mathematical model of HBV and HDV transmission in Sub-Saharan Africa to investigate the effects of hepatitis B vaccination on both HBV and HDV. Our findings illustrate a hepatitis B vaccination rate above 0.006 year-1 reduces hepatitis D by over 90%, and a vaccination rate above 0.0221 year-1 reduces hepatitis B by ...


Life After Death – Does Carcass Biodiversity Scale With Carcass Body Size?, Troy Warfield 2022 University of Arkansas, Fayetteville

Life After Death – Does Carcass Biodiversity Scale With Carcass Body Size?, Troy Warfield

Biological Sciences Undergraduate Honors Theses

Mammals play a large role in the ecosystems where some, especially large-bodied mammals, act as ecosystem engineers. Mammal carcasses, particularly those of large body mass act as a temporary island of dense nutrients that support other organisms, including other mammal species, for an extended period. Research in this field currently focuses on the link between mammal carcass size and nutrient availably or on non-mammalian size and biodiversity, but little is available on the correlation between mammal carcass size and its influence on ecosystem biodiversity. Here we ask, does the available biomass (i.e., body size) of the carcass affect its ...


Relative Palatability And Efficacy Of Brodifacoum-25d Conservation Rodenticide Pellets For Mouse Eradication On Midway Atoll, Peter J. Kappes, Shane R. Siers, Israel L. Leinbach, Robert T. Sugihara, Wesley J. Jolley, Jonathan H. Plissner, Elizabeth N. Flint, Kelly L. Goodale, Gregg R. Howald 2022 USDA APHIS National Wildlife Research Center

Relative Palatability And Efficacy Of Brodifacoum-25d Conservation Rodenticide Pellets For Mouse Eradication On Midway Atoll, Peter J. Kappes, Shane R. Siers, Israel L. Leinbach, Robert T. Sugihara, Wesley J. Jolley, Jonathan H. Plissner, Elizabeth N. Flint, Kelly L. Goodale, Gregg R. Howald

USDA Wildlife Services - Staff Publications

Invasive mice (Mus spp.) can negatively impact island species and ecosystems. Because fewer island rodent eradications have been attempted for mice compared to rats (Rattus spp.), less is known about efficacy and palatability of rodenticide baits for mouse eradications. We performed a series of bait acceptance and efficacy cage trials using a standard formulation of brodifacoum-based rodenticide on wild-caught mice from Sand Island, Midway Atoll, to help inform a proposed eradication there. Mice were offered ad libitum brodifacoum pellets along with various alternative food sources, and a “no choice” treatment group received only bait pellets. Mortality in the no choice ...


Microplastics Exposure In At-Risk Myotis Lucifugus Bats Of The Northeastern United States, Leah Crowley 2022 University of Tennessee, Knoxville

Microplastics Exposure In At-Risk Myotis Lucifugus Bats Of The Northeastern United States, Leah Crowley

Chancellor’s Honors Program Projects

No abstract provided.


Elk Abundance, Survival, And Health In The Cumberland Mountains Of Tennessee, Katherine Kurth 2022 University of Tennessee, Knoxville

Elk Abundance, Survival, And Health In The Cumberland Mountains Of Tennessee, Katherine Kurth

Doctoral Dissertations

Managing sustainable wildlife populations requires insight into population abundance and health. Since reintroduction, elk (Cervus canadensis) at the North Cumberland Wildlife Management Area (NCWMA) in Tennessee have shown marginal population growth using low-precision abundance estimates. Limited research investigating possible population limiting factors has occurred since evaluations conducted directly after translocation. To provide information necessary for effective population management, we estimated abundance, identified survival rates, and conducted mortality and health surveillance. Precise abundance estimates of eastern elk populations are challenging to obtain using traditional capture-recapture due to invasive handling of individuals and low detection in forested landscapes. Therefore, we used elk ...


Site Fidelity Of Bottlenose Dolphins (Tursiops Truncatus) Using Elemental Analyses And Photo-Identification, Lauren R. Clance 2022 University of South Alabama

Site Fidelity Of Bottlenose Dolphins (Tursiops Truncatus) Using Elemental Analyses And Photo-Identification, Lauren R. Clance

Theses and Dissertations

The objective of this study was to determine if bottlenose dolphins (Tursiops truncatus) in Alabama waters acquire location-specific elemental signatures indicative of site fidelity. I measured trace metal concentrations (Chapter II) and stable isotope ratios (Chapter III) in skin from free-ranging dolphins remotely biopsied in Mobile Bay, the northern Gulf of Mexico (Gulf) and eastern Mississippi Sound (EMSS). Elemental findings were corroborated with photo-identification data. I found that dolphins acquired some location-specific elements indicative of site fidelity, with the greatest differences at geographic extremes, particularly relative to salinity. For trace metals, highest concentrations were found in winter, consistent with higher ...


Non-Native Coccinellid Beetles And Land Use Abundance Patterns In The Quad Cities Region, Jack Hughes, Tierney Brosius, Michael Reisner 2022 Augustana College, Rock Island Illinois

Non-Native Coccinellid Beetles And Land Use Abundance Patterns In The Quad Cities Region, Jack Hughes, Tierney Brosius, Michael Reisner

Biology: Student Scholarship & Creative Works

Harmonia axyridis was introduced in 1916. This species of coccinellid beetle is considered a desirable species for agriculture practices because of its ability to control pests. There is increasing evidence that H. axyridis may be outcompeting native species which could be contributing to the decline of some species that are disappearing from the landscape. Harmonia axyridis has a large migration range of 2 Km enabling the species to affect a large area of land. Invasive species often increase in abundance in urban landscapes which may be the case with H. axyridis. During the summer of 2021 we investigated H. axyridis ...


Editorial: Special Issue “Innovative Techniques And Approaches In The Control And Prevention Of Rabies Virus”, Amy T. Gilbert, Ryan M. Wallace, Charles E. Rupprecht 2022 USDA National Wildlife Research Center

Editorial: Special Issue “Innovative Techniques And Approaches In The Control And Prevention Of Rabies Virus”, Amy T. Gilbert, Ryan M. Wallace, Charles E. Rupprecht

USDA Wildlife Services - Staff Publications

Rabies is an ancient lethal scourge that has plagued humankind for centuries. Globally, 60,000 human deaths are estimated to occur each year from rabies virus (RABV) transmission in domestic dogs, mostly affecting children. While rabies is recognized as a neglected disease, there is cause for optimism in the context of growing global recognition, collaboration and commitment to advance a tripartite agenda to eliminate human deaths transmitted from rabid dogs by 2030, also known as “Zero By Thirty” (ZBT). Nevertheless, the ZBT goal must also confront competing challenge(s) of tracking and mitigating human morbidity and mortality during a global ...


Microbial Diversity And Community Structure In Sediments Associated With The Seagrass (Thallassia Testudinum) In Apalachicola Bay, Florida, Rahma Ahmed, Thomas McElroy, Troy Mutchler 2022 Kennesaw State University

Microbial Diversity And Community Structure In Sediments Associated With The Seagrass (Thallassia Testudinum) In Apalachicola Bay, Florida, Rahma Ahmed, Thomas Mcelroy, Troy Mutchler

Symposium of Student Scholars

Seagrass is an angiosperm which provides many ecosystem services in coastal areas, such as providing food, shelter and nurseries for many species, and decreasing the impact of waves on shorelines. A global assessment reported that 29% of known seagrass meadows are in a state of decline due to the effects of human activity. Seagrass is commonly found in shallow marine waters where they form meadows containing a microbiome that plays an important role in providing nutrients for seagrass growth, though little is known about the microorganisms within the seagrass meadow sediments. Our project collected sediments from seagrass meadows and adjacent ...


Can We Use Antipredator Behavior Theory To Predict Wildlife Responses To High-Speed Vehicles?, Ryan B. Lunn, Bradley Blackwell, Travis L. DeVault, Esteban Fernández-Juricic 2022 Purdue University

Can We Use Antipredator Behavior Theory To Predict Wildlife Responses To High-Speed Vehicles?, Ryan B. Lunn, Bradley Blackwell, Travis L. Devault, Esteban Fernández-Juricic

USDA Wildlife Services - Staff Publications

Animals seem to rely on antipredator behavior to avoid vehicle collisions. There is an extensive body of antipredator behavior theory that have been used to predict the distance/time animals should escape from predators. These models have also been used to guide empirical research on escape behavior from vehicles. However, little is known as to whether antipredator behavior models are appropriate to apply to an approaching high-speed vehicle scenario. We addressed this gap by (a) providing an overview of the main hypotheses and predictions of different antipredator behavior models via a literature review, (b) exploring whether these models can generate ...


Evaluating Gizzard Shad Dorosoma Cepedianum Populations In Two Kentucky Reservoirs Recently Invaded With Silver Carp Hypopthalmichthys Molitrix, Nathan Klein 2022 Murray State University

Evaluating Gizzard Shad Dorosoma Cepedianum Populations In Two Kentucky Reservoirs Recently Invaded With Silver Carp Hypopthalmichthys Molitrix, Nathan Klein

Scholars Week

Gizzard Shad Dorosoma cepedianum are an ecologically important fish species found in many reservoirs throughout the southeastern United States such as Kentucky Lake and Lake Barkley. One current challenge that Gizzard Shad may face in these two reservoirs is competition with the invasive Silver Carp Hypophthalmichthys molitrix. However, quantifying the impacts of this competition may be difficult because of limited baseline population data for Gizzard Shad in these two reservoirs. The objective of this study is to describe size structure, condition, age, growth, mortality, and spawning potential of these two populations. Gizzard Shad were collected by boat electrofishing and surface ...


Soybean Gall Midge (Resseliella Maxima Gagné): Insecticide Efficacy And Seasonal Larval Abundance, Vilma Maria Montenegro Castro 2022 University of Nebraska-Lincoln

Soybean Gall Midge (Resseliella Maxima Gagné): Insecticide Efficacy And Seasonal Larval Abundance, Vilma Maria Montenegro Castro

Dissertations and Student Research in Entomology

Soybean gall midge, Resseliella maxima Gagné was recently identified as a new species injuring soybean in Nebraska, Iowa, South Dakota, Minnesota, and Missouri. Resseliella maxima injury is caused by its three instars that feed on tissues within the soybean stem. Infested plants exhibit a darkening of the stem, disrupting nutrient flow within the plant and can lead to wilting or death of plants. Total yield losses can occur in the first 30 m of the field in heavily infested sites. The biology and behavior of this newly described insects is not well understood and management strategies for the management of ...


Winter Cover Crop Impacts On Weed Dynamics In Eastern And Central Nebraska, Elizabeth Ann Oys 2022 University of Nebraska - Lincoln

Winter Cover Crop Impacts On Weed Dynamics In Eastern And Central Nebraska, Elizabeth Ann Oys

Theses, Dissertations, and Student Research in Agronomy and Horticulture

Reducing tillage in cropping systems causes weed management to be dependent on chemical and cultural methods for weed control. Over time, herbicide-resistant weeds have developed due to the continuous selection pressures from herbicides, particularly in the Midwest Corn Belt. Integrated weed management strategies, such as cover crops, can be used to mitigate some of these issues. Cover crops are primarily known for their soil health benefits, but there is evidence that cover crops can suppress weeds. However, less research has been done at the field-scale level to address cover crop impacts on the weed seedbank and aboveground weeds during the ...


Understanding Continent-Wide Variation In Vulture Ranging Behavior To Assess Feasibility Of Vulture Safe Zones In Africa: Challenges And Possibilities, Adam Kane, Ara Monadjem, H. K.Ortwin Aschenborn, Keith Bildstein, André Botha, Claire Bracebridge, Evan R. Buechley, Ralph Buij, John P. Davies, Maria Diekmann, Colleen T. Downs, Nina Farwig, Toby Galligan, Gregory Kaltenecker, Chris Kelly, Ryno Kemp, Holger Kolberg, Monique L. MacKenzie, John Mendelsohn, Msafiri Mgumba, Ran Nathan, Aaron Nicholas, Darcy Ogada, Morgan Pfeiffer, W. Louis Phipps, Matteuns D. Pretorius, Sascha Rösner, Dana G. Schabo, Gabriel Lita Shatumbu, Orr Spiegel, Lindy J. Thompson, Jan A. Venter, Munir Virani, Kerri Wolter, Corinne J. Kendall 2022 University College Dublin

Understanding Continent-Wide Variation In Vulture Ranging Behavior To Assess Feasibility Of Vulture Safe Zones In Africa: Challenges And Possibilities, Adam Kane, Ara Monadjem, H. K.Ortwin Aschenborn, Keith Bildstein, André Botha, Claire Bracebridge, Evan R. Buechley, Ralph Buij, John P. Davies, Maria Diekmann, Colleen T. Downs, Nina Farwig, Toby Galligan, Gregory Kaltenecker, Chris Kelly, Ryno Kemp, Holger Kolberg, Monique L. Mackenzie, John Mendelsohn, Msafiri Mgumba, Ran Nathan, Aaron Nicholas, Darcy Ogada, Morgan Pfeiffer, W. Louis Phipps, Matteuns D. Pretorius, Sascha Rösner, Dana G. Schabo, Gabriel Lita Shatumbu, Orr Spiegel, Lindy J. Thompson, Jan A. Venter, Munir Virani, Kerri Wolter, Corinne J. Kendall

USDA Wildlife Services - Staff Publications

Protected areas are intended as tools in reducing threats to wildlife and preserving habitat for their long-term population persistence. Studies on ranging behavior provide insight into the utility of protected areas. Vultures are one of the fastest declining groups of birds globally and are popular subjects for telemetry studies, but continent-wide studies are lacking. To address how vultures use space and identify the areas and location of possible vulture safe zones, we assess home range size and their overlap with protected areas by species, age, breeding status, season, and region using a large continent-wide telemetry datasets that includes 163 individuals ...


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