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Articles 1 - 30 of 3668
Full-Text Articles in Animal Sciences
Quantifying Costs And Benefits Of Alternative Overwintering Strategies In A Southeastern Population Of Timber Rattlesnakes (Crotalus Horridus), John Powers, Amber Stubbs, Alfred J. Mead, Dominic L. Desantis
Quantifying Costs And Benefits Of Alternative Overwintering Strategies In A Southeastern Population Of Timber Rattlesnakes (Crotalus Horridus), John Powers, Amber Stubbs, Alfred J. Mead, Dominic L. Desantis
Graduate Research Showcase
Temperate reptile populations are under strong selective pressure to minimize the costs of extreme winter temperatures. For high latitude and high elevation snake populations, this has often favored communal overwintering behavior, wherein large numbers of conspecifics aggregate at optimal sites given the limited availability of such features in the environment. Timber Rattlesnakes (Crotalus horridus) are distributed across a wide latitudinal gradient in North America, and therefore represent ideal models for exploring how variable winter selective regimes might favor different strategies. Here, we leverage a unique intermediate population of C. horridus from central Georgia, USA, that exhibits both communal …
A Dietary Variety: Analyzing The Impacts Of Diverse Vs Worm-Exclusive Diets On The Blanding’S Turtle (Emydoidea Blandingii), Caitlin F. Copenhaver
A Dietary Variety: Analyzing The Impacts Of Diverse Vs Worm-Exclusive Diets On The Blanding’S Turtle (Emydoidea Blandingii), Caitlin F. Copenhaver
Honors Theses
The endangered Blanding’s turtle (Emydoidea blandingii) is a species with a generally diverse diet in their freshwater wetland habitats; they consume prey such as crayfish and snails. In captivity, these options often become more limited due to logistical reasons. As ex situ conservation efforts such as captive rearing and head-starting are becoming more popular for this species, it will be important to gain more insight on how these more limited diets might affect these turtles. This study describes a comparison between diets in six captive Blanding’s turtles from September to November of 2023, with three turtles receiving only …
Animal Conservation In St. Louis, Kate O'Sullivan
Animal Conservation In St. Louis, Kate O'Sullivan
Undergraduate Research Symposium
St. Louis has a multitude of organizations involved in the natural sciences. But how many of them actually contribute towards animal conservation? The St. Louis Zoo is an organization that focuses a lot of its effort on presentation, so how does that impact the funds that go towards actually saving the animals? I plan to dive into the different animal-based organizations in St. Louis and its surrounding areas, as well as discuss the positives and negatives of each organization. Furthermore, I will provide examples from several sources that I have been reviewing all year to support my claims. I plan …
Oregon State Rank Assessment For Golden Eagle (Aquila Chrysaetos), Misty Nelson
Oregon State Rank Assessment For Golden Eagle (Aquila Chrysaetos), Misty Nelson
Institute for Natural Resources Publications
Oregon state conservation status assessment for Golden Eagle (Aquila chrysaetos) using NatureServe methodology, 2024.
Site-Specific Space Use And Resource Selection By Black Vultures (Coragyps Atratus) In The Southeastern Usa, Betsy Evans, John S. Humphrey, Eric A. Tillman, Michael L. Avery, Bryan M. Kluever
Site-Specific Space Use And Resource Selection By Black Vultures (Coragyps Atratus) In The Southeastern Usa, Betsy Evans, John S. Humphrey, Eric A. Tillman, Michael L. Avery, Bryan M. Kluever
USDA Wildlife Services: Staff Publications
North American populations of Black Vultures Coragyps atratus have increased and expanded their distribution in the southern and eastern USA. In conjunction with these patterns has been a rise in human–vulture conflicts. To improve our understanding of space use patterns and better inform management, we evaluated the movements of Black Vultures (n = 23) in the southeastern USA using a long-term GPS tracking database. Our specific objectives were to: (1) quantify home-range sizes in relation to season and geographical study location and (2) examine within-home-range resource selection to identify landscape and anthropogenic factors influencing roost and diurnal space use. …
Treatment With The Immunocontraceptive Vaccine, Gonacon, Induces Temporary Fertility Control In Free-Ranging Prairie Dog Populations In Colorado, Usa, Aaron B. Shiels, Jackson Runte, Emily W. Ruell, Douglas C. Eckery, Gary W. Witmer, Daniel J. Salkeld
Treatment With The Immunocontraceptive Vaccine, Gonacon, Induces Temporary Fertility Control In Free-Ranging Prairie Dog Populations In Colorado, Usa, Aaron B. Shiels, Jackson Runte, Emily W. Ruell, Douglas C. Eckery, Gary W. Witmer, Daniel J. Salkeld
USDA Wildlife Services: Staff Publications
Context
Prairie dogs (Cynomys spp.) are rodents enjoyed by some humans; yet, they cause crop and property damage, and carry zoonotic disease. Non-lethal control of prairie dogs is of interest in urban/suburban settings. The injectable immunocontraceptive vaccine GonaCon (active ingredient is gonadotropin-releasing hormone [GnRH]) has been shown to be effective at reducing fertility in equine and deer, and is a US EPA-registered vaccine for use in these ungulate species.
Aims
To conduct a replicated field study to test efficacy of GonaCon in black-tailed prairie dogs (C. ludovicianus), and if found to be efficacious, to help facilitate …
Comparison Of Ketamine-Xylazine, Butorphanol-Azaperone-Medetomidine, And Nalbuphine-Medetomidine-Azaperone For Raccoon (Procyon Lotor) Immobilization, Shylo R. Johnson, Christine K. Ellis, Chad Wickham, Molly R. Selleck, Amy T. Gilbert
Comparison Of Ketamine-Xylazine, Butorphanol-Azaperone-Medetomidine, And Nalbuphine-Medetomidine-Azaperone For Raccoon (Procyon Lotor) Immobilization, Shylo R. Johnson, Christine K. Ellis, Chad Wickham, Molly R. Selleck, Amy T. Gilbert
USDA Wildlife Services: Staff Publications
Raccoons (Procyon lotor) are frequently handled using chemical immobilization in North America for management and research. In a controlled environment, we compared three drug combinations: ketamine-xylazine (KX), butorphanol-azaperone-medetomidine (BAM), and nalbuphinemedetomidine- azaperone (NalMed-A) for raccoon immobilization. In crossover comparisons, raccoons received a mean of the following: 8.66 mg/kg ketamine and 1.74 mg/kg xylazine (0.104 mL/kg KX); 0.464 mg/kg butorphanol, 0.155 mg/kg azaperone, and 0.185 mg/kg medetomidine (0.017 mL/kg BAM); and 0.800 mg/kg nalbuphine, 0.200 mg/kg azaperone, and 0.200 mg/kg medetomidine (0.020 mL/kg NalMed-A). Induction time was shortest with KX (mean6SE, 10.060.7 min) and longest with NalMed-A (13.061.3 min). …
Oral Rabies Vaccination Of Raccoons (Procyon Lotor) Across A Development Intensity Gradient In Burlington, Vermont, Usa, 2015–2017, Emily M. Beasley, Kathleen M. Nelson, Dennis Slate, Amy T. Gilbert, Frederick E. Pogmore, Richard B. Chipman, Amy J. Davis
Oral Rabies Vaccination Of Raccoons (Procyon Lotor) Across A Development Intensity Gradient In Burlington, Vermont, Usa, 2015–2017, Emily M. Beasley, Kathleen M. Nelson, Dennis Slate, Amy T. Gilbert, Frederick E. Pogmore, Richard B. Chipman, Amy J. Davis
USDA Wildlife Services: Staff Publications
Management of the raccoon rabies virus variant in North America is conducted primarily using oral rabies vaccination (ORV). When a sufficient proportion of the population is vaccinated (60%), rabies transmission can be eliminated. To date, ORV programs have successfully controlled and eliminated raccoon rabies in rural areas, but there has been less success in urban areas. We studied the proportions of rabies virus neutralizing antibodies (RVNA) in a raccoon (Procyon lotor) population during a 3-year ORV trial in developed areas of Burlington, Vermont, United States. We used a modified N-mixture model to estimate raccoon abundance, RVNA seroprevalence, and …
Recent Beak Evolution In North American Starlings After Invasion, Julia M. Zichello, Shelagh T. Deliberto, Paul Shrewsbury, Agnieszka A. Pierwola, Scott J. Werner
Recent Beak Evolution In North American Starlings After Invasion, Julia M. Zichello, Shelagh T. Deliberto, Paul Shrewsbury, Agnieszka A. Pierwola, Scott J. Werner
USDA Wildlife Services: Staff Publications
European starlings are one of the most abundant and problematic avian invaders in the world. From their native range across Eurasia and North Africa, they have been introduced to every continent except Antarctica. In 160 years, starlings have expanded into different environments throughout the world, making them a powerful model for understanding rapid evolutionary change and adaptive plasticity. Here, we investigate their spatiotemporal morphological variation in North America and the native range. Our dataset includes 1,217 specimens; a combination of historical museum skins and modern birds. Beak length in the native range has remained unchanged during the past 206 years, …
Assessing The Efficiency Of Local Rabies Vaccination Strategies For Raccoons (Procyon Lotor) In An Urban Setting, Guillaume Bastille-Rousseau, Nicole T. Gorman, Katherine M. Mcclure, Larissa Nituch, Tore Buchanan, Richard B. Chipman, Amy T. Gilbert, Kim M. Pepin
Assessing The Efficiency Of Local Rabies Vaccination Strategies For Raccoons (Procyon Lotor) In An Urban Setting, Guillaume Bastille-Rousseau, Nicole T. Gorman, Katherine M. Mcclure, Larissa Nituch, Tore Buchanan, Richard B. Chipman, Amy T. Gilbert, Kim M. Pepin
USDA Wildlife Services: Staff Publications
Raccoon rabies virus (RRV) has been managed using multiple vaccination strategies, including oral rabies vaccination and trap-vaccinate-release (TVR). Identifying a rabies vaccination strategy for an area is a nontrivial task. Vaccination strategies differ in the amount of effort and monetary costs required to achieve a particular level of vaccine seroprevalence (efficiency). Simulating host movement relative to different vaccination strategies in silico can provide a useful tool for exploring the efficiency of different vaccination strategies. We refined a previously developed individual-based model of raccoon movement to evaluate vaccination strategies for urban Hamilton, Ontario, Canada. We combined different oral rabies vaccination baiting …
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 …
Trends In Monitoring Of Australia’S Threatened Birds (1990–2020): Much Improved But Still Inadequate, Simon J. Verdon, Robert A. Davis, Ayesha Tulloch, Sarah M. Legge, David M. Watson, John C. Z. Woinarski, G. Barry Baker, Joris Driessen, Hayley M. Geyle, Hugh Possingham, Stephen T. Garnett
Trends In Monitoring Of Australia’S Threatened Birds (1990–2020): Much Improved But Still Inadequate, Simon J. Verdon, Robert A. Davis, Ayesha Tulloch, Sarah M. Legge, David M. Watson, John C. Z. Woinarski, G. Barry Baker, Joris Driessen, Hayley M. Geyle, Hugh Possingham, Stephen T. Garnett
Research outputs 2022 to 2026
Monitoring is vital to conservation, enabling conservation scientists to detect population declines, identify threats and measure the effectiveness of interventions. However, not all threatened taxa are monitored, monitoring quality is variable, and the various components of monitoring are likely to differ in their rates of improvement over time. We assessed the presence of monitoring and monitoring quality, using a range of metrics, for all Australia’s threatened bird taxa from 1990 to 2020 (four assessments spanning 30 years). We used our assessments to understand decadal trends in the number of taxa monitored; monitoring quality; and the groups that conduct monitoring. The …
Oregon State Ranking Assessment For Morrison Bumblebee (Bombus Morrisoni), Misty Nelson
Oregon State Ranking Assessment For Morrison Bumblebee (Bombus Morrisoni), Misty Nelson
Institute for Natural Resources Publications
Oregon state conservation status assessment for Morrison bumblebee (Bombus morrisoni) using NatureServe methodology, 2023.
Oregon State Rank Assessment For Yellow Bumblebee (Bombus Fervidus), Misty Nelson
Oregon State Rank Assessment For Yellow Bumblebee (Bombus Fervidus), Misty Nelson
Institute for Natural Resources Publications
Oregon state conservation status assessment for Yellow bumblebee (Bombus fervidus) using NatureServe methodology, 2023.
Oliver Agee Catfish Neurocranium, Charlotte R. Oliver, Kristina Agee, David Kerstetter
Oliver Agee Catfish Neurocranium, Charlotte R. Oliver, Kristina Agee, David Kerstetter
All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series
Neurocranium from 10.7 cm total length, [Catfish], collected by [Kerstetter].
Catfish Neurocranium 3-D Scan, Pamela Gonzalez, Jarod Johnson, David Kerstetter
Catfish Neurocranium 3-D Scan, Pamela Gonzalez, Jarod Johnson, David Kerstetter
All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series
No abstract provided.
Common Snook (Centropomus Undecimalis) Neurocranium, Ryan Robison, Lesley Wallace, David Kerstetter
Common Snook (Centropomus Undecimalis) Neurocranium, Ryan Robison, Lesley Wallace, David Kerstetter
All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series
Neurocranium length of 16.5 cm Common Snook (Centropomus undecimalis), collected from Dr. Kerstetter's Lab on 10/23 by Ryan Robison and Lesley Wallace.
Yellow Grouper (Epinephelus Awoara), Tyler Jurain, David Kerstetter
Yellow Grouper (Epinephelus Awoara), Tyler Jurain, David Kerstetter
All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series
No abstract provided.
Jack Crevalle Neurocranium, Rodolfo A. Heredia, David Kerstetter
Jack Crevalle Neurocranium, Rodolfo A. Heredia, David Kerstetter
All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series
No abstract provided.
Brown Bullhead Catfish (Ameiurus Nebulosus) Neurocranium, Reginald Leon Kempson Iii, David Kerstetter
Brown Bullhead Catfish (Ameiurus Nebulosus) Neurocranium, Reginald Leon Kempson Iii, David Kerstetter
All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series
Neurocranium from [6.3] cm total length (30 cm) [Brown Bullhead Catfish (Ameiurus nebulosus)], collected from [Dr.Kerstetters lab] on [6/December/2023] by [Reginald Kempson III]
Gag Grouper (Mycteroperca Microlepis) Neurocranium, Sierra Potts, David Kerstetter
Gag Grouper (Mycteroperca Microlepis) Neurocranium, Sierra Potts, David Kerstetter
All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series
10 cm neurocranium from Gag Grouper, Mycteroperca microlepis, collected from Snapper Mike's on 05/11/2023 by Sierra Potts
Resolution Of The Tetrabothrius Jagerskioeldi Cryptic Species Complex Among Holarctic Alcidae (Charadriiformes): Cestodes Among Fraterculinae—Exploring Marine Diversity, Host Range, And Dynamic Oceanography In The Greater North Pacific, Eric P. Hoberg, Kaylen Marie Soudachanh, Svetlana K. Bondarenko
Resolution Of The Tetrabothrius Jagerskioeldi Cryptic Species Complex Among Holarctic Alcidae (Charadriiformes): Cestodes Among Fraterculinae—Exploring Marine Diversity, Host Range, And Dynamic Oceanography In The Greater North Pacific, Eric P. Hoberg, Kaylen Marie Soudachanh, Svetlana K. Bondarenko
MANTER: Journal of Parasite Biodiversity
In the biosphere, limits for diversity among species, communities, and biomes are revealed through intensive and extensive field-based inventory and assembly of voucher specimens and associated informatics examined in a phylogenetic, historical, ecological, and biogeographic arena. Archival resources for specimens and information contribute to a cumulative view of faunal structure and assembly under a comparative umbrella. Ultimately, species definitions, and inclusive partitions among populations and lineages, are fundamental in articulating hypotheses that examine interactions about evolution, the nature of organisms, and the condition of environments across space and time. We conclude our proposals establishing species limits for tapeworms of the …
Parrotfish Skull, Grace Mikus, David Kerstetter
Parrotfish Skull, Grace Mikus, David Kerstetter
All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series
No abstract provided.
Serranidae Spp. Neurocranium, Justin Abonce, David Kerstetter
Serranidae Spp. Neurocranium, Justin Abonce, David Kerstetter
All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series
No abstract provided.
Rainbow Parrotfish Neurocranium, Theophilus J. Hebert, David Kerstetter
Rainbow Parrotfish Neurocranium, Theophilus J. Hebert, David Kerstetter
All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series
No abstract provided.
Accelerated Evolution Of Sars-Cov-2 In Free-Ranging White-Tailed Deer, Dillon S. Mcbride, Sofya K. Garushyants, John Franks, Andrew F. Magee, Steven H. Overend, Devra Huey, Amanda M. Williams, Seth A. Faith, Ahmed Kandeil, Sanja Trifkovic, Lance Miller, Trushar Jeevan, Anami Patel, Jacqueline M. Nolting, Michael J. Tonkovich, J. Tyler Genders, Andrew J. Montoney, Kevin Kasnyik, Timothy J. Linder, Sarah N. Bevins, Julianna B. Lenoch, Jeffrey C. Chandler, Thomas J. Deliberto, Eugene V. Koonin, Marc A. Suchard, Philippe Lemey, Richard J. Webby, Martha I. Nelson, Andrew S. Bowman
Accelerated Evolution Of Sars-Cov-2 In Free-Ranging White-Tailed Deer, Dillon S. Mcbride, Sofya K. Garushyants, John Franks, Andrew F. Magee, Steven H. Overend, Devra Huey, Amanda M. Williams, Seth A. Faith, Ahmed Kandeil, Sanja Trifkovic, Lance Miller, Trushar Jeevan, Anami Patel, Jacqueline M. Nolting, Michael J. Tonkovich, J. Tyler Genders, Andrew J. Montoney, Kevin Kasnyik, Timothy J. Linder, Sarah N. Bevins, Julianna B. Lenoch, Jeffrey C. Chandler, Thomas J. Deliberto, Eugene V. Koonin, Marc A. Suchard, Philippe Lemey, Richard J. Webby, Martha I. Nelson, Andrew S. Bowman
USDA Wildlife Services: Staff Publications
The zoonotic origin of the COVID-19 pandemic virus highlights the need to fill the vast gaps in our knowledge of SARS-CoV-2 ecology and evolution in non-human hosts. Here, we detected that SARS-CoV-2 was introduced from humans into white-tailed deer more than 30 times in Ohio, USA during November 2021-March 2022. Subsequently, deer-to-deer transmission persisted for 2–8 months, disseminating across hundreds of kilometers. Newly developed Bayesian phylogenetic methods quantified how SARS-CoV-2 evolution is not only three-times faster in white-tailed deer compared to the rate observed in humans but also driven by different mutational biases and selection pressures. The long-term effect of …
Rapid Evolution Of A(H5n1) Influenza Viruses After Intercontinental Spread To North America, Ahmed Kandeil, Christopher Patton, Jeremy C. Jones, Trushar Jeevan, Walter N. Harrington, Sanja Trifkovic, Jon P. Seiler, Thomas Fabrizio, Karlie Woodard, Jasmine C. Turner, Jeri Carol Crumpton, Lance Miller, Adam Rubrum, Jennifer Debeauchamp, Charles J. Russell, Elena A. Govorkova, Peter Vogel, Mia Kim-Torchetti, Yohannes Berhane, David Stallknecht, Rebecca Poulson, Lisa Kercher, Richard J. Webby
Rapid Evolution Of A(H5n1) Influenza Viruses After Intercontinental Spread To North America, Ahmed Kandeil, Christopher Patton, Jeremy C. Jones, Trushar Jeevan, Walter N. Harrington, Sanja Trifkovic, Jon P. Seiler, Thomas Fabrizio, Karlie Woodard, Jasmine C. Turner, Jeri Carol Crumpton, Lance Miller, Adam Rubrum, Jennifer Debeauchamp, Charles J. Russell, Elena A. Govorkova, Peter Vogel, Mia Kim-Torchetti, Yohannes Berhane, David Stallknecht, Rebecca Poulson, Lisa Kercher, Richard J. Webby
USDA Wildlife Services: Staff Publications
Highly pathogenic avian influenza A(H5N1) viruses of clade 2.3.4.4b underwent an explosive geographic expansion in 2021 among wild birds and domestic poultry across Asia, Europe, and Africa. By the end of 2021, 2.3.4.4b viruses were detected in North America, signifying further intercontinental spread. Here we show that the western movement of clade 2.3.4.4b was quickly followed by reassortment with viruses circulating in wild birds in North America, resulting in the acquisition of different combinations of ribonucleoprotein genes. These reassortant A(H5N1) viruses are genotypically and phenotypically diverse, with many causing severe disease with dramatic neurologic involvement in mammals. The proclivity of …
Yellowtail Snapper Ocyurus Chrysurus, Kevin Rafferty, Manuel Ploner, David W. Kerstetter
Yellowtail Snapper Ocyurus Chrysurus, Kevin Rafferty, Manuel Ploner, David W. Kerstetter
All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series
YELLOWTAIL SNAPPER OCYURUS CHRYSURUS 7.5CM Total length
Lionfish (Pterois Volitans) Neurocranium, Kate Heffner, Hosanna Gattle, David Kerstetter
Lionfish (Pterois Volitans) Neurocranium, Kate Heffner, Hosanna Gattle, David Kerstetter
All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series
Neurocranium from 30 cm total length (TL) Lionfish (Pterois volitans), collected from Second Reef on 15/10/2023 by Kate Heffner.
Yellow Edge Grouper (Hyporthodus Flavolimbatus) Neurocranium, Lili Mcelhill, Alison Novara, David Kerstetter
Yellow Edge Grouper (Hyporthodus Flavolimbatus) Neurocranium, Lili Mcelhill, Alison Novara, David Kerstetter
All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series
Neurocranium (11 cm) of Yellow Edge Grouper (Hyporthodus flavolimbatus), collected from South Florida local fish market on 02/11/2023 by Alison Novara and Lili McElhill.