Digital Commons Network^™

Comparisons Of Habitat Use Between Parent-Reared And Costume-Reared Whooping Cranes In The Eastern Migratory Population, 2012–2023, Mary Anderson, Glenn H. Olsen, Susie Dunham, Hillary L. Thompson, Marianne M. Wellington

Proceedings of the North American Crane Workshop

Different rearing and release methods have been used to introduce captive-raised whooping cranes (Grus americana) into eastern North America. One method, parent-rearing, coupled with direct release into the wild, offers several benefits over costume-rearing cranes coupled with guided migration by ultralight aircraft. However, little research has compared how these different rearing methods may influence post-release behavior of cranes in the wild. We compare habitat use between costume and parent-reared cranes. Habitat use is an expression of behavior, where cranes choose which habitats in which to spend their time. Using leg-band-mounted satellite transmitters, we documented habitat use patterns of costume-reared and …

Maximum Daily Dispersal Distance Of Wintering Whooping Cranes At Goose Pond Fish And Wildlife Area, Indiana, Alicia M. Ward, Hillary M. Thompson, Allisyn-Marie T. Y. Gillet, Amy J. Kearns, Andrew J. Caven

Proceedings of the North American Crane Workshop

Whooping cranes (Grus americana) are an endangered species consisting of 4 populations, including the Eastern Migratory Population (EMP), a reintroduced experimental population that is not yet self-sustaining. The EMP breeds in Wisconsin and winters primarily in Indiana and Alabama. The International Crane Foundation and its partners release captive-reared chicks into the EMP annually to support the growth of the population. This population continues to face multiple threats throughout its flyway, including habitat loss and degradation, and collision mortalities. By analyzing global positioning system (GPS) data from whooping cranes at a primary wintering site, Goose Pond Fish and Wildlife Area (FWA, …

The Diets Of Wild And Reintroduced Whooping Cranes, Heather A. Neri, Glenn H. Olson, Eric C. Kindahl, Susan L. Carney

Proceedings of the North American Crane Workshop

We characterized the diets of the recently established Eastern Migratory Population (EMP) and the extant Aransas-Wood Buffalo population (AWBP). Starting in 2013, frozen proventriculus and ventriculus contents from previously collected dead whooping cranes from both populations were examined to identify dietary items and quantity. EMP whooping cranes (n = 29) consumed benthic macro-invertebrates, beetles, crabs/crayfish, vegetation, seeds, mollusks, and unidentifiable vertebrates. The diets of AWBP whooping cranes (n = 7) examined included all the same food items except benthic macro-invertebrates. Both populations also consumed a variety of non-food items, including plastic and metal. Our data suggests that the wild and …

Lead And Mercury Exposure In Eastern Whooping Cranes: Cause For Concern?, Barry K. Hartup, Anne E. Lacy, Hillary L. Thompson

Proceedings of the North American Crane Workshop

The dietary uptake of lead (Pb) and mercury (Hg) risks limiting population growth of reintroduced whooping cranes (Grus americana) in the Eastern Migratory Population (EMP). We evaluated these potentially toxic trace elements in blood and marginal covert feathers of wild-hatched juvenile and adult cranes sampled in the Wisconsin breeding range between 2016 and 2023. Samples were obtained at live capture events, and analyzed using inductively coupled plasma/mass spectrometry for Pb and Total Hg (THg). Blood Pb concentrations from adults were greater than those of juveniles, but feather Pb concentrations were similar between age classes. Blood and feather THg concentrations were …

Evidence Of Polygyny In A Greater Sandhill Crane, Gary L. Ivey, Chad W. August

Proceedings of the North American Crane Workshop

No abstract provided.

Sandhill Crane Lead Poisonings Linked To A Wetland Restoration, Andrew J. Caven, Joshua D. Wiese

Proceedings of the North American Crane Workshop

Toward the end of the 2018 spring sandhill crane migration on the Platte River in Nebraska, we detected 7 dead cranes near a recently restored wetland within 200 m of the river’s main channel. Topographic recontouring of the soils had occurred in January of 2018 and the area was not yet revegetated. The area had formerly hosted an excavated pond where hunting occurred for many years prior to the 1991 ban on lead ammunition for waterfowl harvest. Two of the cranes with no physical signs of trauma were submitted for necropsy. The cause of death in both cases as lead …

Predators And Scavengers Of Eastern Migratory Whooping Crane Eggs, Hillary L. Thompson, Nicole M. Gordon

Proceedings of the North American Crane Workshop

The Eastern Migratory Population of whooping cranes (Grus americana) is not yet self-sustaining, primarily due to low recruitment. We deployed 81 cameras on whooping crane nests in Wisconsin during 2019–2024 to determine the fate of each nest. We identified 7 instances of depredation of crane eggs and 10 of abandoned eggs that were later scavenged. Coyotes (Canis latrans, n = 3 nests) and raccoons (Procyon lotor, n = 2) were the primary predators of crane eggs. We documented common ravens (Corvus corax, n = 2 nests), American crows (Corvus brachyrhynchos, n = 2), a bald eagle (Haliaeetus leucocephalus, n = …

Correlates Of Sandhill Crane Off-Channel Roosting Behavior In The Platte Valley, Bethany L. Pstrom, Andrew J. Caven

Proceedings of the North American Crane Workshop

During spring migration, more than 1 million sandhill cranes stage along the Platte River in central Nebraska. Appropriate river flows can support ideal depths for roosting and provide protection from terrestrial predators. Cranes and other waterbirds occasionally roost outside of the river channel or reduce diurnal activity therein but conditions under which this occurs remain poorly defined. Despite the ability to influence flows in this highly managed river system, many hydrological factors remain outside of managers’ control. We examine the proportion of sandhill cranes detected in nonriverine habitat during weekly aerial surveys from mid-February to mid-April from 2016 to 2023. …

Population Status Of Pacific Coast Canadian Sandhill Cranes Along The Lower Columbia River, Oregon And Washington, Usa, Mark A. Stern, Alex Chmielewski, Ginny A. Stern, Kenneth J. Popper, Jen L. Newlin, Mark A. Nebeker, Gary L. Ivey, Gary L. Ivey

Proceedings of the North American Crane Workshop

Pacific coast Canadian sandhill cranes (Grus canadensis rowani) breed in coastal regions of British Columbia and southeast Alaska and are considered a unique population within the Pacific Flyway. These cranes stage during fall migration along the Lower Columbia River at Sauvie Island Wildlife Area (SIWA), Oregon, Ridgefield National Wildlife Refuge (RNWR), Washington, and on adjacent lands. Peak numbers of cranes congregate here in late September through mid-October, with most of these cranes continuing south to winter in the Central Valley of California. During 2003–2024, we conducted single-day counts annually of cranes during peak fall migration as cranes flew into their …

Mississippi Sandhill Crane Conservation Update 2020–2023, Scott G, Hereford, Angela J. Dedrickson

Proceedings of the North American Crane Workshop

The Mississippi sandhill crane is an endangered non-migratory subspecies that primarily occurs on its namesake national wildlife refuge. To manage crane habitat on the Mississippi Sandhill Crane National Wildlife Refuge during 2020–2023, 8,885 ha were treated with prescribed burns, 648 ha of woody vegetation was removed, 234 ha of invasive plants were chemically treated, and 400 ha were mowed. There were 368 target predators removed, including coyotes and bobcats. Forty-six captive-reared juveniles were released. We detected an average of 64 nests per year, with a range of 63–69, the latter a record high. A total of 37 chicks fledged for …

Nocturnal Winter Roost Site Use By Whooping Cranes In The Aransas-Wood Buffalo Population, Matti R. Bradshaw, Carter G. Crouch, Katrina M. Fernald, Andrew J. Caven, Dorn M. Moore, Sundas Rehman

Proceedings of the North American Crane Workshop

Evaluating site use and fidelity is vital to understanding roosting area needs for individual birds. We used data from wintering Aransas-Wood Buffalo population whooping cranes tracked with Platform Transmitting Terminals to identify roost sites in Texas. We analyzed 86 unique winters across 42 individuals and used a hierarchical clustering approach to group roost locations that were within 100 m of each other to identify unique roost sites by individual (n = 2,608). We found that on average, whooping cranes used 30.3 ± 1.71 SE roost sites per winter (range 8–70; 30 September and 2 May) and spent on average 4.4 …

Over-Summering Of Migratory Whooping Cranes On Their Wintering Grounds, Paityn C. Macko, Stephanie M. Schmidt, Carter G. Crouch, Arianna N. Barajas, Alicia M. Ward, Hillary L. Thompson, Matti R. Bradshaw, Elizabeth H. Smith

Proceedings of the North American Crane Workshop

Over-summering of migratory bird populations on wintering grounds may occur when individuals forgo migration and remain in non-breeding or wintering habitats. We summarized all reported instances of migratory whooping cranes (Grus americana) over-summering on the wintering grounds during 1891–2024. We report 9 individuals over-summering from the Eastern Migratory Population (EMP), 4 reports from Texas during 1891–1941, and between 1–4 individuals over-summering across 23 summers from the Aransas-Wood Buffalo Population (AWBP) post-1941. Although there were many instances of over-summering without clear proximate causes, some documented causes or contributing factors across both populations include injury, disease, death or injury of a mate, …

Bedbug Education, Treatment, And Prevention, Elizabeth Bedford

Department of Entomology: Distance Master of Science Projects

Bedbugs, Cimex lectularius, have become a severe issue in recent years due to human travel, immigration, and importation of products. Unfortunately, most people do not know bedbug biology and therefore do not manage these arthropods correctly. The information available to people online and from pest control professionals must be corrected. Education and proper treatment are necessary to eradicate pests and bedbugs in homes, commercial buildings, and other places. A1 Home Pest Control conducted a study to understand better bedbugs and how to help their clients with eradication and education in the safest manner possible. The study also aimed to …

Agricultural Pests Of The Dominican Republic, Sophia Acosta

Department of Entomology: Distance Master of Science Projects

Note on Profiles:

The following profiles are of the most common pests of the main crops grown in the Dominican Republic--avocado, citrus, coconut, mango, banana, plantain, pineapple, tomato, potato, cabbage, tobacco, pepper, garlic, onion, rice, beans, papaya, and melon. Many of these insects attack other crops not listed in this guide.

The intent of this guide is to help identify pest characteristics and environmentally friendly ways to control them (integrated pest management).

Chemical controls should always be the last resort. Try to conserve biodiversity and continue to monitor before turning to chemicals. Always consult local extension office for pesticide usage, …

How To Create A Pollinator Garden [Extension Circular], Gianna M. Desrochers

Department of Entomology: Distance Master of Science Projects

Includes information on:

What Is a pollinator?

What is pollination and why is it important?

What habitat do pollinators like?

How do I create pollinator habitat?

Plants to plant in eastern Nebraska

• April-May blooming flowers
• June-July blooming flowers
• August-October blooming flowers

Native plants and their visitors

Websites for more information and plant options

Works cited

Entomology Outreach Presentations To Four Audiences, Michael Goldman

Department of Entomology: Distance Master of Science Projects

I proposed that my master’s Project would be outreach on Entomology at four levels: School aged children, laymen, non-entomologists in a technical field, and entomologists. The idea here is basically how to talk about entomology to varying levels of expertise, from first graders to experts in both entomology and occupational health and safety. Presentations were given to audiences at each of the four levels. The specific topics varied for each audience. The determination was made by the inviting audience in the cases of school aged children and adult laymen and by me in the cases of Occupational Safety and Health …

Entomophagy: Mealworm Protein In An Inpatient Hospital Setting (Engagement And Education To Rollout Entomophagy For Improved Nutrition), Caryl Showalter

Department of Entomology: Distance Master of Science Projects

The consumption of insects (entomophagy) is a well-practiced phenomenon in many parts of the world. Western societies, including the US, are among the few places that do not participate in this practice. However, entomophagy has the potential to ease nutritional burdens, globally. While many may believe that nutritional deficits are a relic of more economically challenging times or a problem specifically linked to the low economic countries, the truth is that any area can face this problem. This was made clear in the US during the coronavirus lockdown with an estimated doubling in food insecurity associated with a lack of …

Nature Journaling With Insects: A Guide And Journal Template, Danielle Positeri

Department of Entomology: Distance Master of Science Projects

An Introduction to Nature Journaling

Nature journaling is a natural history based activity centered on journaling one’s experiences and observations based on surrounding environment and natural lifeforms encountered. A tool commonly used by those who study natural history, famous naturalists such as Charles Darwin and John Muir were known to keep nature journals. Although those who make their careers in environmental sciences or field work keep professional, very detailed journals, journaling can also be a great activity for those who simply enjoy nature. Public educators teach nature journaling to young students to encourage building a plethora of skills: mindfulness, attention …

Galliformes Specialist Group Annual Report 2023, John P. Carroll, Rahul Kaul

Galliformes Specialist Group and Affiliated Societies: Reports and Other Materials

Annual report of the IUCN SSC Galliformes Specialist Group, 2023.

Manydogs Project: A Big Team Science Approach To Investigating Canine Behavior And Cognition, Daniela Alberghina, Emily E. Bray, Daphna Buchsbaum, Sarah- Elizabeth Byosiere, Julia Espinosa, Gitanjali E. Gnanadesikan, C.-N. Alexandrina Guran, Elizabeth Hare, Daniel J. Horschler, Ludwig Huber, Valerie A. Kuhlmeier, Evan L. Maclean, Madeline H. Pelgrim, Bryan Perez, Dana Ravid-Schurr, Liza Rothkoff, Courtney L. Sexton, Zachary A. Silver, Jeffrey R. Stevens

Center for Brain, Biology, and Behavior: Faculty Publications

Dogs have a special place in human history as the first domesticated species and play important roles in many cultures around the world. However, their role in scientific studies has been relatively recent. With a few notable exceptions (e.g., Darwin, Pavlov, Scott, and Fuller), domestic dogs were not commonly the subject of rigorous scientific investigation of behavior until the late 1990s. Although the number of canine science studies has increased dramatically over the last 20 years, most research groups are limited in the inferences they can draw because of the relatively small sample sizes used, along with the exceptional diversity …

La Imagen Divina Del Antiguo Perú Y Sus Falsas Interpretaciones, Uwe Carlson

Segundo congreso internacional de iconografía precolombina. Barcelona, 2023. Actas.

La arqueología científica del antiguo Perú sólo existe desde hace poco más de 100 años. Durante este tiempo, no parece haber sido posible interpretar con éxito la iconografía y, en particular, las imágenes divinas y la religión del antiguo Perú. En los últimos 15 años, el autor de este texto ha realizado numerosas publicaciones y libros sobre la presencia de la imagen divina en objetos del antiguo Perú, especialmente en textiles. Esto ha proporcionado interpretaciones lógicas y coherentes para todas las antiguas culturas peruanas basadas en la identificación de su simbolismo. Sin embargo, esta literatura no parece haber sido reconocida …

Venus Y El Maíz En El Códice De Dresde, María Montserrat Camacho Angeles

Segundo congreso internacional de iconografía precolombina. Barcelona, 2023. Actas.

Es posible documentar una multitud de vínculos entre Venus y el maíz en toda Mesoamérica, particularmente en el área maya. Estos vínculos son de muy diversa índole, pero se presentan en tal profusión, que no sería extraño esperar que alguna de las advocaciones de Venus se identificara con el maíz mismo. La imagen de la deidad, no suele ser considerada como un dios del maíz. Debemos situar a esta deidad en su contexto, debido a lo cual tendremos que mencionar algunas generalidades sobre las Tablas de Venus en el Códice de Dresde y al hacerlo surgirán algunos elementos novedosos o …

Iconografía Y Simbolismo De Las Aves En Piezas Del Sitio Arqueológico Ciudad Del Jaguar-T1 (Honduras), Geydy Rodríguez Wood

Segundo congreso internacional de iconografía precolombina. Barcelona, 2023. Actas.

Honduras es un país que, por su ubicación en el corazón de Centroamérica, facilitó en época precolombina, un flujo migratorio en donde diferentes culturas del norte y del sur interactuaron, intercambiaron conocimientos y se mezclaron con los nativos del territorio, creando así un espacio multicultural. El presente trabajo tiene como objetivo el estudio iconográfico y simbólico de piezas con representaciones figurativas de aves del sitio arqueológico Ciudad del Jaguar-T1, que se encuentran en el Centro de Investigación Ciudad Blanca (El Aguacate, Catacamas, Honduras). Realizo esta investigación a través del estudio estilístico, iconográfico y simbólico de las piezas, que me permiten …

Nuevo Acercamiento A La Iconografía De Los Vasos Con Perfiles De Animales Fantásticos, Patricia Ochoa Castillo

Segundo congreso internacional de iconografía precolombina. Barcelona, 2023. Actas.

Perfiles de un animal fantástico, o ser sobrenatural, con rasgos que lo asocian al jaguar, combinado con líneas, rectángulos, las cejas en forma rectangular, ojos almenados, la cabeza con hendidura en la parte superior, así como la presencia de un óvalo bajo la nariz, o banda nasal, son elementos que se repiten en algunas representaciones plasmadas en vasos de base y paredes ligeramente cóncavos. A través del análisis de cada uno de sus elementos se intentará definir el personaje o ser ahí representado y su simbología, que se desarrolla durante el Preclásico.

Profiles of a fantastic animal, or supernatural being, …

Las Urnas Zapotecas (Estado De Oaxaca, México): Una Iconografía Del Espacio Y Del Tiempo, Pascal Mongne

Segundo congreso internacional de iconografía precolombina. Barcelona, 2023. Actas.

La cultura zapoteca (Estado de Oaxaca, México) es famosa por sus célebres “urnas funerarias”, de las que existen unas 4.000 en el mundo. Conocidas desde principios del siglo XIX, estas piezas han sido objetos de estudios iconográficos que, sin embargo, han incluido numerosas falsificaciones realizadas a raíz de su éxito. Las “urnas” zapotecas fueron el tema de una investigación doctoral realizada por el autor entre 1980 y 1985. Esta, basada en los informes de excavaciones publicados o conservados en los archivos, permitió reunir datos hasta entonces poco tratados, tanto sobre la evolución estilística como sobre su entorno (condiciones de descubrimiento, …

Hombres, Pumas Y Jaguares: Imágenes Del Poder Chamánico En Los Vasos Líticos Del Noroeste Argentino, María Alba Bovisio

Segundo congreso internacional de iconografía precolombina. Barcelona, 2023. Actas.

El presente trabajo se centra en el análisis de unos vasos de piedra, producidos en la región valliserrana del noroeste argentino durante el Período Formativo, que se destacan por su escaso número, su particular iconografía que gira en torno a felinos y humanos masculinos, y la maestría en su ejecución. Estos recipientes habrían estado asociados al consumo de sustancias psicoactivas en rituales de carácter chamánico. A través del análisis iconográfico articulado con las características materiales y funcionales se indaga el rol de estos objetos como agentes de legitimación y constitución del poder ejercido por los chamanes.

This paper analyzes lithic …

Data Drives Nebraska: Technology Advancements Impact Agriculture And Natural Resources, Laura E. Young, Emily Hatterman, Chandra Spangler, Alexis Corman, Klanie David, Jennifer Velasquez-Perfecto, Gracie Stout, Noelle Philippi, Emma Hoffschneider, Taylor Gregory-Jensen, Saskia Lanwermann, Abigayle Warm, Jared Dehaan, Brianna Gable, Sarah Eberspacher, Trisha Dybdal, Jadyn Heckenlively

Strategic Discussions for Nebraska

Strategic Discussions for Nebraska 2023

Data Drives Nebraska: Technology Advancements Impact Agriculture and Natural Resources

Special Issue: Agri-Food Systems Transformation: Sustainability, Resilience, And The Role Of Technology, Rui Mao, Aleksan Shanoyan, Kate Brooks

Department of Agricultural Economics: Faculty Publications

The agri-food systems around the world are faced with the challenges from unprecedented short-term shocks and long-term supply and demand shifts. The need for transformation towards more sustainable and resilient agri-food systems has thus risen to the centre of attention of agribusiness industry and policy decision makers. Technological innovations in the areas of supply chain management, environmental protection, and nutrition improvement have a potential of playing an important catalytic role in such systematic transformations. This special issue includes 11 research articles examining a range of strategic and technological solutions aimed at facilitating the resilience and sustainability of agri-food systems to …

Indecent Bodies In Early Modern Visual Culture: An Introduction, Fabian Jonietz, Mandy Richter, Alison Stewart

School of Art, Art History, and Design: Faculty Publications and Creative Activity

Indecency ‒ the polar opposite of propriety, appropriateness, respectability, decorum ‒ has played a central role in our understanding of Early Modern cultural norms since the beginning of art history as an academic field in the nineteenth century. Accordingly, the concept of indecency was fundamental to historical and contemporary discourses that attempted to balance social limits on indecorous behaviour and images. At the same time, the appeal of such visual imagery, the attraction of graphic depictions of bodies and their actions, resulted in conflicting responses on the part of viewers. Historically, decency and indecency played defining roles in both the …

Lung Health Basics Fact Sheet

United States Natonal Institutes of Health: Materials

This factsheet provides definitions for basic lung health terms, some of the tests doctors use to see how well the lungs are working, plus treatment suggestions.