Coyote Occupancy And Movement In Hanover County, Virginia, 2023 George Mason University
Coyote Occupancy And Movement In Hanover County, Virginia, Richard S. Groover
Virginia Journal of Science
Although the coyote (Canis latrans) is native to North America, we have limited understanding of its presence in Virginia. Coyote range expansion is linked to anthropogenic factors, including habitat fragmentation and the extirpation of apex predators. Information on coyote adaptations to Virginia habitats is scarce, and eastern coyotes may have unique adaptations for colonizing an area. Anecdotal evidence suggests that coyotes are abundant in Hanover County (north of Richmond, VA), but this has not been confirmed. This study was conducted over an 18-month period with multiple survey sites throughout Hanover County, each equipped with game camera stations and …
Highly Pathogenic Avian Influenza A(H5n1) Virus Outbreak In New England Seals, United States, 2023 Cummings School of Veterinary Medicine
Highly Pathogenic Avian Influenza A(H5n1) Virus Outbreak In New England Seals, United States, Wendy Puryear, Kaitlin Sawatzki, Nichola Hill, Alexa Foss, Jonathon J. Stone, Lynda Doughty, Dominique Walk, Katie Gilbert, Maureen Murray, Elena Cox, Priya Patel, Zak Mertz, Stephanie Ellis, Jennifer Taylor, Deborah Fauquier, Ainsley Smith, Robert A. Digiovanni, Adriana Van De Guchte, Ana Silvia Gonzalez-Reiche, Zain Khalil, Harm Van Bakel, Mia K. Torchetti, Kristina Lantz, Julianna B. Lenoch, Jonathan Runstadler
USDA Wildlife Services: Staff Publications
We report the spillover of highly pathogenic avian influenza A(H5N1) into marine mammals in the northeastern United States, coincident with H5N1 in sympatric wild birds. Our data indicate monitoring both wild coastal birds and marine mammals will be critical to determine pandemic potential of influenza A viruses.
Cell Volume As A Determinant Of Virus-Mediated Population Growth In Ciliates, 2023 University of Nebraska-Lincoln
Cell Volume As A Determinant Of Virus-Mediated Population Growth In Ciliates, Jace Miller, John Paul Delong Phd
Honors Theses
Many protists and other small aquatic organisms consume virus particles, a behavior known as virovory. Some species of protists, such as the ciliate Halteria grandinella, can grow and divide using viruses as their sole food source. Other ciliate species have previously been shown to consume large quantities of viral particles, but it is unclear if they are able to support population growth with viruses alone. Because large ciliates have a higher energy demand, we hypothesize that they will be unable to support population growth on a virus-only diet. We fed nine ciliate species a diet of chloroviruses and found …
Prairie Dogs, 2023 USDA-APHIS Wildlife Services
Prairie Dogs, Gary Witmer, Jon Grant, Kendra Cross
Wildlife Damage Management Technical Series
Prairie dogs (Cynomys spp.) occur throughout the prairie states of middle North America from Mexico northward into Canada. They occupy a variety of habitats from prairies to high mountain valleys and sage brush-dominated deserts. The most common species is the black-tailed prairie dog (Cynomys ludovicianus; Figure 1). Prairie dogs are considered a “keystone species.” They provide habitat for many other native, grassland species. Prairie dogs live in colonies or “towns” that can span hundreds to thousands of acres. Depending on the species, their presence is evident by their burrow system. Despite the many ecosystem benefits prairie dogs provide by modifying …
2022-2023 Christmas Bird Counts, 2023 Nebraska Ornithologists' Union
2022-2023 Christmas Bird Counts, Don Paseka
Nebraska Bird Review
Sixteen counts were run in the 2022-2023 CBC season. Because of weather and rescheduling issues, the Crawford, Harrison, and Harlan County counts were cancelled. Eight of the counts were completed during the first week of the count period and the other eight were scattered throughout the remainder of the count period. An early December cold snap seemed to drive many of the birds south, but the weather on actual count days was fairly benign: mostly dry with an average high of 34˚F and an average low of 19˚F and with three circles reporting light snow. The total number of species …
Winter Field Report, Dec. 2022 - Feb. 2023, 2023 Nebraska Ornithologists' Union
Winter Field Report, Dec. 2022 - Feb. 2023, W. Ross Silcock
Nebraska Bird Review
Since this is a Winter Seasonal Report, it seems appropriate to lead off with notable reports of occurrences that might be considered unexpected for midwinter, of which there were several. A range of species was involved, suggesting an encompassing cause such as climate change. Of interest were northerly wintering groups of waterfowl including Gadwall, Green-winged Teal, Canvasback, Ringnecked Duck, and Hooded Merganser. Reports of wintering Tundra Swans, Whitewinged Doves, and Lesser Goldfinches continue to increase, and numerous Redwinged Blackbirds in the northeast in midwinter were unexpected. Also quite unexpected were two Sandhill Cranes wintering in the east, the state’s first …
The Nebraska Bird Review Annual Color Photo Section, 2023 University of Nebraska - Lincoln
The Nebraska Bird Review Annual Color Photo Section
Nebraska Bird Review
Virginia Rail and chick, Washboard Road, North Platte, Lincoln Co., 28 June 2023. Photo by Boni Edwards.
American Coot, Eagle Scout Lake, Hall Co., April 2020. Photo by Colleen Childers.
Hudsonian Godwit, Marsh Wren Community Wetlands, Lancaster Co., 21 May 2022. Photo by Kirill Belashchenko.
American Avocet, N.P. Dodge Park, Omaha, Douglas Co., 2 May 2023. Photo by Thane Dinsdale
Female Cape May Warbler, photographer's backyard, Bellevue, Sarpy Co., 10 May 2022. Photo by Loren Padelford.
Male Cape May Warbler, Ft. Niobrara NWR, Cherry Co., 13 May 2022. Photo by Gordon Warrick.
Tennessee Warbler, Fontenelle Forest Wetlands, Sarpy Co., 24 …
Annual Treasurer's Report For 2022, 2023 Nebraska Ornithologists’ Union
Annual Treasurer's Report For 2022, Jan Johnson
Nebraska Bird Review
No abstract provided.
The Nebraska Bird Review: A Magazine Of Ornithology Of The Nebraska Region. Volume 91, Number 1. March 2023, 2023 University of Nebraska - Lincoln
The Nebraska Bird Review: A Magazine Of Ornithology Of The Nebraska Region. Volume 91, Number 1. March 2023, Nebraska Ornithologists’ Union
Nebraska Bird Review
Winter Field Report, Dec. 2022 - Feb. 2023 by W. Ross Silcock
Annual Color Photo Section
Annual Treasurer's Report for 2022 by Jan Johnson
Subscription and Organization Information
Biology Of Spodoptera Frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) On Rice And Different Corn Varieties, 2023 University of the Philippines Los Baños
Biology Of Spodoptera Frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) On Rice And Different Corn Varieties, Anthony S. Agravante, Karen B. Alviar, Analiza Henedina M. Ramirez, Sheryl A. Yap
The Philippine Agricultural Scientist
Rice and corn are one of the most important crops in the Philippines. Several insect pests contribute to the losses and low yield of these crops. The fall armyworm (FAW), Spodoptera frugiperda (J.E. Smith), was recently reported to cause economic damage to corn. Also, this insect consists of two genetically differentiated strains namely, the corn strain and the rice strain. This study was conducted in a laboratory conditions to evaluate the biological parameters of FAW on rice and corn varieties. Newly hatched larvae were fed such as the open pollinated variety (OPV), traditional variety, Macho F1 (hybrid), NK 6410 (genetically …
Blanding’S Turtle (Emydoidea Blandingii): Species Conservation Assessment, 2023 Nebraska Game and Parks Commission
Blanding’S Turtle (Emydoidea Blandingii): Species Conservation Assessment, Melissa J. Panella, Colleen Rothe-Groleau
Nebraska Game and Parks Commission: Publications
The primary goal in development of at-risk species conservation assessments is to compile biological and ecological information that may assist conservation practitioners in making decisions regarding the conservation of species of interest. The Nebraska Natural Legacy Project recognizes the Blanding’s turtle (Emydoidea blandingii) as a Tier 1 at-risk species. Some general management recommendations are made here regarding Blanding’s turtles; however, conservation practitioners will need to use professional judgment to make specific management decisions based on objectives, location, and a multitude of variables. This resource was designed to share available knowledge of this at-risk turtle that will aid in the decision-making …
An Evaluation Of Avian Influenza Virus Whole-Genome Sequencing Approaches Using Nanopore Technology, 2023 USGS National Wildlife Health Center
An Evaluation Of Avian Influenza Virus Whole-Genome Sequencing Approaches Using Nanopore Technology, Hon S. Ip, Sarah Uhm, Mary Lea Killian, Mia K. Torchetti
USDA Wildlife Services: Staff Publications
As exemplified by the global response to the SARS-CoV-2 pandemic, whole-genome sequencing played an important role in monitoring the evolution of novel viral variants and provided guidance on potential antiviral treatments. The recent rapid and extensive introduction and spread of highly pathogenic avian influenza virus in Europe, North America, and elsewhere raises the need for similarly rapid sequencing to aid in appropriate response and mitigation activities. To facilitate this objective, we investigate a next-generation sequencing platform that uses a portable nanopore sequencing device to generate and present data in real time. This platform offers the potential to extend in-house sequencing …
What Drives Larval Condition For Northern Anchovy (Engraulis Mordax)? Implications For Coastal Pelagic Species Recruitment Fluctuations And Fishery Management Practices, 2023 University of San Diego
What Drives Larval Condition For Northern Anchovy (Engraulis Mordax)? Implications For Coastal Pelagic Species Recruitment Fluctuations And Fishery Management Practices, Michelle Robidas
Theses
Discerning the causes of population boom and bust cycles for coastal pelagic species (CPS) has been a major focus of fisheries management research for over a century. Year-class strength is contingent on larval survival and condition, which can be influenced by larval size at age and growth rate. These two factors, in turn, can be affected by maternal investment and environmental variables such as water temperature, salinity, oxygen, and chlorophyll a. We evaluated each of these factors from 127 two to eight week-old Northern Anchovy (Engraulis mordax) larvae off the coast of San Diego to San Francisco, …
Burmese Pythons In Florida: A Synthesis Of Biology, Impacts, And Management Tools, 2023 USGS Wetland and Aquatic Research Center, Davie, Florida,
Burmese Pythons In Florida: A Synthesis Of Biology, Impacts, And Management Tools, Jacquelyn C. Guzy, Bryan G. Falk, Brian J. Smith, Johnd David Willson, Robert N. Reed, Nicholas G. Aumen, Michael L. Avery, Ian A. Bartoszek, Earl Campbell, Michael S. Cherkiss, Natalie M. Claunch, Andrea F. Currylow, Tylan Dean, Jeremy Dixon, Richard Engeman, Sarah Funck, Rebekah Gibble, Kodiak C. Hengstebeck, John S. Humphrey, Margaret E. Hunter, Jillian M. Josimovich, Jennifer Ketterlin, Michael Kirkland, Frank J. Mazzotti, Robert Mccleery, Melissa A. Miller, Matthew Mccollister, M. Rockwell Parker, Shannon E. Pittman, Michael Rochford, Christina Romagosa, Art Roybal, Ray W. Snow, Mckayla M. Spencer, J. Hardin Waddle, Any A. Yackel Adams, Kristen M. Hart
USDA Wildlife Services: Staff Publications
Burmese pythons (Python molurus bivittatus) are native to southeastern Asia, however, there is an established invasive population inhabiting much of southern Florida throughout the Greater Everglades Ecosystem. Pythons have severely impacted native species and ecosystems in Florida and represent one of the most intractable invasive-species management issues across the globe. The difficulty stems from a unique combination of inaccessible habitat and the cryptic and resilient nature of pythons that thrive in the subtropical environment of southern Florida, rendering them extremely challenging to detect. Here we provide a comprehensive review and synthesis of the science relevant to managing invasive …
A Dynamical System Model Of Dengue Transmission For Rio De Janeiro, Brazil, 2023 Utah Tech University
A Dynamical System Model Of Dengue Transmission For Rio De Janeiro, Brazil, Gregory Schmidt, Benjamin Whipple, Vinodh Chellamuthu, Xiaoxia Xie
Spora: A Journal of Biomathematics
The dengue virus is a serious concern in many parts of the world, including Brazil. As data indicates, a prominent vector for dengue is the mosquito Aedes aegypti. By using the dengue incidence records from the Brazilian SINAN database, we estimate the population of A. aegypti within the city of Rio de Janeiro. Using historical climate data for Rio de Janeiro and the computed population estimates, we extend an existing model for the population dynamics of mosquitoes to incorporate precipitation in aquatic stages of development for A. aegypti.
Prevalence Of Hesperevax Sparsiflora Var. Brevifolia (Short-Leaved Evax) At Ocean Ranch, Humboldt County, California: Exploring The Effects Of Disturbance, 2023 Humboldt State University
Prevalence Of Hesperevax Sparsiflora Var. Brevifolia (Short-Leaved Evax) At Ocean Ranch, Humboldt County, California: Exploring The Effects Of Disturbance, Shelby Diquirco, Matthew Estrada, Alana T. Fraley, Alexander D. Smith
Environmental Science & Management Senior Capstones
The prevalence of special-status plants within a landscape can be an indicator of the ecological health of that site, and therefore inform restoration efforts and post-restoration monitoring. Hesperevax sparsiflora var. brevifolia (short-leaved evax) is a special status species found within the Ocean Ranch unit of Humboldt, California. A primary threat to native plant communities are invasive plant species. Coastal dune ecosystems are largely dominated by invasive species, including Ammophila arenaria (European beachgrass). To work towards the eradication of A. arenaria, the California Department of Fish and Wildlife utilized treatment combinations of herbicide and prescribed fire at Ocean Ranch in …
Emerging Patterns In Population Structure And Trap Efficacy After Three Years Of A Survey Of Western Painted Turtles (Chrysemys Picta Bellii, Gray, 1830) In Marshall County, South Dakota, 2023 University of Minnesota - Morris
Emerging Patterns In Population Structure And Trap Efficacy After Three Years Of A Survey Of Western Painted Turtles (Chrysemys Picta Bellii, Gray, 1830) In Marshall County, South Dakota, Heather L. Waye, Amy C. Dolan, Peter C. Dolan
Biology Publications
Turtles are long-lived and globally declining, but relatively little is known about the natural history of many turtle species. Even amongst relatively well-studied species, there is a paucity of information for some habitats and long-term population trends are lacking. Here we report the results from the first three years of an intended long-term population survey of Western Painted Turtles (Chrysemys picta bellii) in the prairie highlands of the Coteau des Prairies, South Dakota. Turtles were sampled using basking traps, hoop traps, and dip nets. Catch per unit effort varied between years, but not significantly so, and hoop traps …
Carnivore And Ungulate Occurrence In A Fire-Prone Region, 2023 California State Polytechnic University Humboldt
Carnivore And Ungulate Occurrence In A Fire-Prone Region, Sara J. Moriarty-Graves
Cal Poly Humboldt theses and projects
Increasing fire size and severity in the western United States causes changes to ecosystems, species’ habitat use, and interspecific interactions. Wide-ranging carnivore and ungulate mammalian species and their interactions may be influenced by an increase in fire activity in northern California. Depending on the fire characteristics, ungulates may benefit from burned habitat due to an increase in forage availability, while carnivore species may be differentially impacted, but ultimately driven by bottom-up processes from a shift in prey availability. I used a three-step approach to estimate the single-species occupancy of four large mammal species: mountain lion (Puma concolor), coyote …
Western Gulls’ (Larus Occidentalis) Reproductive And Behavioral Responses To Human Disturbance, 2023 Cal Poly Humboldt
Western Gulls’ (Larus Occidentalis) Reproductive And Behavioral Responses To Human Disturbance, Lilamarie 'Asta Bowen
Cal Poly Humboldt theses and projects
Human disturbances can negatively affect wildlife by causing stress, altering behavior, or even impacting populations through changes in survival or productivity. Colonial-nesting seabirds are of particular concern due to population declines and their gregarious and conspicuous nature, which may attract human visitors. However, the effects of nearby human activities, though frequently negative, could be neutral or even positive through phenomena like habituation to human activities or subsidization by human-supplied food sources. In this observational study, I evaluated relative support for three hypotheses which may explain how Western Gulls are impacted by human activity: disturbance, habituation, and subsidization. I investigated this …
Insights Into The Conservation Of The Rare Perennial Herb, Astragalus Applegatei, 2023 Cal Poly Humboldt
Insights Into The Conservation Of The Rare Perennial Herb, Astragalus Applegatei, Sean Stewart
Cal Poly Humboldt theses and projects
As anthropogenic activities expand, conservation of rare and endangered species is critical to reduce extinction risks. Collecting and analyzing demographic data can assist in the development of conservation strategies and can help evaluate the success of existing strategies. In this study, I built integral projection models from five years of demographic data and conducted a population viability analysis on four populations of the rare perennial herb, Astragalus applegatei, to inform conservation decisions. I also assessed how planting A. applegatei seedlings might contribute to the growth of an extant population. I found that one population was already below the extinction …