Digital Commons Network^™

Quantifying The Effect Of Time On Geolocation Accuracy In Seabirds, Sophie Bennett, Richard A. Phillips, Jonathan A. Green

Marine Ornithology

Light-based geolocation can be an effective tool for understanding movements and distributions of free-ranging seabirds, particularly during migrations and long-distance foraging trips. The light levels recorded by geolocators (global location sensors; GLS loggers) are used to infer latitude and longitude of individuals from day length and time of local midday relative to UTC (Coordinated Universal Time), respectively. However, there is an associated inaccuracy in these location estimates, associated with both systematic and random error. Previous studies have quantified this error by calculating distances to locations over the same time period derived from more accurate devices such as satellite transmitters (platform …

From Tropical Shores To High-Altitude Lakes: Preliminary Assessment Of Trans-Himalayan Migration Of Brown-Headed Gulls Chroicocephalus Brunnicephalus Between Sri Lanka And The Tibetan Plateau, Gayomini Panagoda, Iromi K. Wijethunge, Beixi Zhang, Fanjuan Meng, Yiwen Chen, Sarath Kotagama, Taej Mundkur, Sivananinthaperumal Balachandran, Lei Cao, Sampath S. Seneviratne

Marine Ornithology

The Brown-headed Gull (BHGU) Chroicocephalus brunnicephalus is a common non-breeding migrant to Sri Lanka's coasts. However, its migration across the Central Asian Flyway—traversing numerous geographic barriers such as the Himalayas and the Tibetan Plateau to reach the southern Indian peninsula and Sri Lanka—has not been studied. We GPS-tracked two BHGUs between Sri Lanka and their breeding grounds on the Tibetan Plateau from 2021 to 2023, documenting four migrations in total—three northward and one southward. During northward migration (25 April-20 May), the gulls covered 2,786.7 ± 168.0 km in 6.8 ± 1.05 d without any stopovers, although they made several rest …

California Brown Pelican Pelecanus Occidentalis Community Science Project: Potential For Population Monitoring, Deborah L. Jaques, Tamara M. Russell, Joseph R. Liebezeit, Anna Weinstein, Richard R. Veit, Daniel Orr, Michael W. Parker, Jim A. Howard, David M. Mazurkiewicz, Daniel W. Anderson, Yuliana Bedolla-Guzmán

Marine Ornithology

From 2016 to 2019, we monitored the distribution, abundance, and age structure of California Brown Pelican Pelecanus occidentalis californicus at nearshore communal roosts along the U.S. West Coast. This effort used “snapshot” surveys during spring and fall, simultaneously engaging up to 111 “community science” participants, i.e., volunteers, on single dates. Volunteers surveyed up to 89 sites and found as many as 22,000 Brown Pelicans. We derived abundance and population structure indices from these data and sought relationships to annual breeding season metrics and large-scale oceanographic indices in the California Current System (CCS). The proportion of immature birds increased during the …

Behavioral Response Of Atlantic Puffins Fratercula Arctica To Marine Heatwaves In The Gulf Of Maine, Usa: A Webcam Study, Julie Wallace, Keenan Yakola, Stephen W. Kress, Donald E. Lyons

Marine Ornithology

We observed a family of Atlantic Puffins Fratercula arctica in a burrow on Seal Island National Wildlife Refuge in the Gulf of Maine, USA, during the 2017-2020 and 2022 breeding seasons. The burrow was equipped with a high-resolution web camera, which allowed 24-hour daily observations. We investigated the impacts of elevated sea surface temperature (SST) and marine heatwaves (MHWs), which are linked to low food availability, on chick provisioning and burrow attendance. In 2017, 2019, 2020, and 2022, the female was the primary provisioner, providing twice as many feedings as the male, and the male was the primary burrow guardian, …

Differing Sex-Related Arrival Of Red Phalaropes Phalaropus Fulicarius At Wintering Grounds In Chile, Yerko A. Vilina, Valeria Sabaj, Paola Sáez, Daniela Leiva-Calderón, Franco Cruz-Jofré

Marine Ornithology

Information is often sparse about whether sex affects arrival of long-distance migratory species at wintering grounds. In this paper we analyze the Red Phalarope Phalaropus fulicarius, a species exhibiting sex-role reversal in its nesting patterns. Between September and December 2005, 166 individuals were found dead along the northern Chile coast, which borders the Humboldt Current. Each individual was tagged, and the date of finding was recorded. Nuclear DNA samples were obtained from 46 individuals and analyzed using a molecular sexing method. Results indicate that females arrived between September and early October, with males appearing in late October. On average, females …

Early Records Of Stones (Gastroliths) In Stomachs Of Antarctic Penguins, Peter D. Shaughnessy

Marine Ornithology

During 1915/16, A. H. Ninnis, on board S/Y Aurora of Shackleton's Imperial Trans-Antarctic Expedition of 1914-1917, collected penguins and seals to augment food supplies while the ship drifted in pack ice. Ninnis found stones (gastroliths) in 86 of 166 Adelie Penguin Pygoscelis adeliae stomachs (52%); numbers varied from 0 to 38 and averaged 2.1 per bird. He also examined eight Emperor Penguin Aptenodytes forsteri stomachs. Two birds had about a dozen stones each, three had some, and three had none. The function of stones in penguins' stomachs remains unknown, but Ninnis did not consider them essential for digestion.

Seabird Abundance Patterns Along A Sydney–Los Angeles Transect, Christopher D. Mcquaid

Marine Ornithology

Our understanding of seabird occurrence patterns is influenced by the fact that some parts of the ocean are less travelled than others, particularly in the centres of oceanic gyres. During the Transglobe Expedition, the M/V Benjamin Bowring undertook a 34-day crossing of the Pacific Ocean from Sydney to Los Angeles. During the crossing, three one-hour watches were conducted daily (morning, noon, and evening), during which all birds visible from the ship were counted and identified (when possible). Bird counts were extremely low in the central regions of the South and North Pacific gyres, in stark contrast to the elevated counts—by …

First Record Of Lesser Frigatebird Fregata Ariel From Rapa Nui (Easter Island), Matthias D. Dehling

Marine Ornithology

The Lesser Frigatebird Fregata ariel is widespread in the western and central tropical Pacific, where it breeds from Raine Island, Australia, in the west to the Tuamotu Archipelago in the east (Marchant & Higgins, 1990). The non-breeding range is larger, extending northwest to Japan and rarely Russia (Sibley & Clapp, 1967) and northeast, rarely, to the northwest Hawaiian Islands, USA (Pratt et al., 1987), and exceptionally as a vagrant to the continental United States (Howell et al., 2014).

Movements By An Adult Male Magnificent Frigatebird Fregata Magnificens Connect Protected Areas In Waters Off Northeastern South America, Lucas Penna Soares Santos, Cecília Licarião, Heideger Lima Do Nascimento, Ricardo Krul, Juliana Kleinsorge, Larissa Schmauder Teixeira Cunha, Patricia Pereira Serafini, Fábio Olmos

Marine Ornithology

No abstract provided.

Molecular Screening Of Avian Viruses And Parasites In Wedge-Tailed Shearwaters Ardenna Pacifica And Barau’S Petrels Pterodroma Baraui On Réunion Island, Camille Lebarbenchon, Celine Toty, Solenn Boucher, Audrey Jaeger, Matthieu Le Corre

Marine Ornithology

We investigated Wedge-tailed Shearwater Ardenna pacifica and Barau's Petrel Pterodroma baraui exposure to infectious agents circulating in the western Indian Ocean. Using polymerase chain reaction and serological analyses, we screened for influenza viruses, flaviviruses, coronaviruses, and blood parasites (Haemoproteus, Leucocytozoon, and Plasmodium). No active infections were detected and serological results suggested limited past exposure, with only two Wedge-tailed Shearwaters testing positive for antibodies to the influenza A virus. These findings indicate the limited role of these species as epidemiological reservoirs. However, environmental factors such as tick infestations and isolated breeding habitats highlight the need for continued epidemiological monitoring to support …

First Record Of Franklin’S Gull Leucophaeus Pipixcan In Saudi Arabia, Silvia Arossa, Lotfi Jilani Rabaoui, Fran Trabalon, David Darrell-Lambert, Foued Hamza, Ridha Ouni, Mohamed Shobrak, Abdulnasser Al Qutub, Mohammed Ali Qurban

Marine Ornithology

We report here the first confirmed sighting of Franklin's Gull Leucophaeus pipixcan in Saudi Arabia, the third record for the larger Arabian Peninsula. The bird was sighted during an ornithological survey conducted in October 2024. The findings highlight the region's importance as a migratory stopover, emphasizing the need for enhanced research and conservation efforts to protect critical habitats for migratory birds.

What To Eat When Far From Home? A Vagrant Seabird Selects Novel But Analogous Prey, William L. Kennerley, Gemma V. Clucas, Donald E. Lyons, Keenan C. Yakola

Marine Ornithology

Vagrancy in birds is an important mechanism contributing to range expansion and the establishment of new breeding populations. However, research on the ecology of vagrant individuals has been limited. From 2005 to 2021, a Red-billed Tropicbird Phaethon aethereus, far outside its usual range, was a summer resident at Seal Island, Maine, USA. In 2020 and 2021, we collected fecal samples from this individual and identified prey types consumed via DNA metabarcoding techniques, using 12S and 18S genes. We identified six fish species in the Red-billed Tropicbird fecal DNA samples, with Atlantic Saury Scomberesox saurus and Atlantic Mackerel Scomber scombrus contributing …

Breeding Phenology And Reproductive Success Of Larid Species Nesting In Cuba, Antonio Garcia-Quintas, Dennis Denis, Christophe Barbraud, Sophie Lanco

Marine Ornithology

Breeding phenology is a life history trait that influences reproductive success and population dynamics, yet it remains poorly studied in tropical seabird species. The Caribbean constitutes a breeding hotspot for seabirds, although information about their phenology and reproductive success is limited. We characterized the breeding phenology and reproductive success of seven larid species during the 2021 breeding season on three cays in Cuba. To document breeding phenological phases, we conducted weekly surveys and used camera traps. We also recorded the number of nests, eggs and fledglings. Overall, the breeding phenology of the studied species was seasonal and relatively synchronous, occurring …

Bonavista Bay Murre Hunters In Newfoundland And Labrador Propose Further Interaction With Biologists And Managers, C. Wayne Humphries, Grant R. W. Humphries, Alexandra M. C. Robbins, Gail S. Fraser

Marine Ornithology

Thick-billed Murres Uria lomvia and Common Murres U. aalge, seabirds with low reproductive rates, delayed reproduction, and high adult survivorship, are hunted in Newfoundland and Labrador (NL) by non-Indigenous residents. The traditional hunt has a complex regulatory history as a result of NL joining Canada in 1949 and the protection of non-game species under the Migratory Bird Convention Act. Thirty hunters from the northeastern region of the island of Newfoundland were interviewed about their knowledge of murres, their hunting practices, and their opinions on current hunting regulations. While the hunters had detailed local species knowledge from the region they hunted, …

Breeding Ecology And Incubation Behaviours Of Little Tern Sternula Albifrons In The Sabkhat Al-Fasl Lagoons, Saudi Arabia, Monif Alrashidi

Marine Ornithology

Aspects of the breeding ecology and behaviour of the Little Tern Sternula albifrons were studied in the Sabkhat Al-Fasl Lagoons, Saudi Arabia, a region characterized by extreme temperature fluctuations. Ground temperatures in the area can range from 50 °C during the day to 25 °C at night. Observations of 147 nests revealed that Little Terns prefer to nest in exposed sites with no vegetation cover. The distance from nests to the nearest bushes ranged from 11-17 m (median = 13 m), while the distance to water ranged from 2-10 m (median = 4 m). Using a small trail camera, adult …

Updating The Status Of The Peruvian Pelican Pelecanus Thagus Following Avian Influenza And El Niño Events In Peru, Liliana Ayala, Gabriela Sandoval-Lazaro

Marine Ornithology

The Peruvian Pelican Pelecanus thagus is an endemic species of the Humboldt Current System. Between November 2022 and March 2024, the avian influenza epidemic and El Niño conditions significantly affected the pelican population. This study provides an update on the population size and breeding status of the species in Peru. Pelican abundance decreased by 31.5% to 37.6% within marine protected areas. The number of live pelicans ranged from 1,652 to 46,046 in 2023 and from 14,505 to 52,540 in 2024, based on counts conducted in natural protected areas by Peruvian government officials. Breeding primarily occurred on six islands between October …

Notes On The Breeding Population Of The Polynesian Storm Petrel Nesofregetta Fuliginosa On Motu Motiro Hiva (Salas Y Gómez Island), Eastern South Pacific, Matías Portflitt-Toro, Juan Serratosa, K. David Hyrenbach, Guillermo Luna-Jorquera

Marine Ornithology

The Polynesian Storm Petrel is an endangered seabird found in the tropical Pacific Ocean. Despite its critical conservation status, little is known about its population, its breeding biology, and the threats facing it. We provide information about its reproductive status, nesting areas, and plastic ingestion on the remote island of Motu Motiro Hiva. In seven visits between 2012 and 2024, we found breeding activity to occur from August to November, with nesting cavities located primarily on the rocky areas of the east and southeast sectors of the island. We found an extremely high incidence of plastic ingestion in the 15 …

Masthead, Marine Ornithology

Marine Ornithology

No abstract provided.

Inside Front Cover, Marine Ornithology

Marine Ornithology

No abstract provided.

Front Cover, Marine Ornithology

Marine Ornithology

No abstract provided.

Contents, Marine Ornithology

Marine Ornithology

No abstract provided.

The Student Movement Volume 110 Issue 7: Packed Calendars, High Stakes, And Cowboy Hats, Aiko J. Ayala Rios, Esther Martin, Megan Constantine, Reagan Westerman, Jj Nixon, Isa Demoraes, Caleb Chung, Laura Pérez, Finnegan Blake, Michael Orellana, Ayanda Dewa, Melissa Moore, Anna Rybachek, Nicoleta Cojan, Corinna Bevier

The Student Movement V. 110 (2025-2026)

ARTS & ENTERTAINMENT

AUSO Travels Through Emotions and Space with Sibelius and Holst, Aiko J. Ayala Rios

More Than A Teacher: Mark Moreno's Influence at SAID, Esther Martin

Roll for Friendship: How the Gaming Club Helps Students Build New Connections, Megan Constantine

More Than Medicine: A Look Into Zoë Oster's Time at Andrews, Reagan Westerman

NEWS

Boots on the Ground and Christmas All Around: AUSA's Holiday Barn Party, JJ Nixon

Men's Cardinals Tip-Off Basketball Season with a Strong Start, Isa DeMoraes

"The Choir of Heaven": Andrews University Fall Choirs' Concert, Caleb Chung

AU Packs Christmas Spirit for Prisoners, Laura Pérez …

Look To Him And Be Radiant With Joy: The Necessity Of The Body For Man's Ultimate Beatitude And The Role Of Ecstatic Joy In The Extensive Growth Of The Beatitude Of The Soul, Sister Maximilian Marie Garretson, O.P.

Theology Graduate Theses

Saint Thomas Aquinas states that our “final and perfect happiness consists in nothing other than the vision of the Divine Essence.”¹ Yet, he distinguishes between the essence and perfection of beatitude and argues that the perfect beatitude of man is fulfilled at the resurrection of the body, after which beatitude grows extensively in the soul of the blessed.²

Based on Thomas Aquinas’ philosophy of the body, his metaphysics of beatitude, and his treatment of charity, it is clear that the glorified body is necessary for the human person’s experience of the fullness of beatitude. How then, does the …

2025-11-07 Faculty Board Minutes, University Of Dayton. Faculty Board

Faculty Board Minutes

No abstract provided.

Michigan Academician Volume 50, Issue 1

Michigan Academician

2025 Michigan Academy Conference abstracts.

Brief Report: Lung Cancer Diagnoses Among Lung Cancer Screening Program Participants With Family History Of Lung Cancer, Julia G. Katcher, Christine S. Shusted, Padmanabh Bhatt, Brooke M. Ruane, Jenna Markle, Gregory C. Kane, Kuang-Yi Wen, Hee-Soon Juon, Julie A. Barta

Division of Pulmonary, Allergy, and Critical Care Medicine Faculty Papers

Clinical Practice Points

• Among screening-eligible adults, lung cancer is diagnosed more often in those with family history of lung cancer
• Patients with family history had higher frequency of stage IV disease
• Considering family history in risk assessment could improve lung cancer screening strategies

The Bison, November, 07, 2025

The Bison Newspapers

No abstract provided.

Perceived Risks, Reasons For Use, And Barriers To Cessation Among Youth Who Use Multiple Tobacco Products, Sierra L. Patterson, Isabellle Duguid, Sonia A. Clark, Seth M. Noar, Allison J. Lazard, Jim F. Thrasher Ph.D., Ma, Ms, Adam O. Goldstein, Sarah D. Kowitt

Faculty Publications

Background

Many interventions aim to reduce youth tobacco use, but few have focused on youth who use multiple tobacco products (MTPs). This qualitative study sought to understand how youth who use MTPs view tobacco product risks, describe reasons for MTP use, and perceive barriers and facilitators to cessation.

Methods

We conducted seven virtual focus groups with 30 US youth ages 14–20 years who reported using e-cigarettes and smoking a combustible tobacco product in the past 30 days. We used a semi-structured focus group guide to ask youth about perceived health risks of tobacco products, reasons for MTP use, and thoughts …

Khsrp-Mediated Decay Of Axonally Localized Prenyl-Cdc42 Mrna Slow Nerve Regeneration, Matthew D. Zdradzinski, Lauren S. Vaughn, Samaneh Matoo, Kayleigh Trumbull, Terika P. Smith, Davis Noblitt, Courtney N. Buchanan, Ashley Loomis, Elizabeth Thames, Seung Joon Lee, Nora Perrone-Bizzozero, Qun Lu, Jessica M. Larsen, Jeffery L. Twiss

Faculty Publications

The small GTPase CDC42 promotes axon growth through actin filament polymerization and this growth is driven by axonal localization of the mRNA encoding the prenylated CDC42 isoform (Prenyl-Cdc42). Here, we show that axonal Prenyl-Cdc42 mRNA levels and the mRNA’s translation are decreased by growth-inhibiting stimulation and increased by growth-promoting stimulation. In contrast, axonal RhoA mRNA transport and translation are increased by growth-inhibiting but unaffected by growth-promoting stimuli. Localized increase in KHSRP in response to growth inhibitory stimulation, through elevation of intracellular Ca²⁺, promotes decrease in axonal levels of Prenyl-Cdc42 mRNA. Distinct 3’UTR motifs regulate transport and …

High School Teachers' Use Of Project-Based Learning To Address Issues Of Equity, Social Justice, And Cultural Relevance, April Serenity Riser

Walden Dissertations and Doctoral Studies

In many educational settings, marginalized populations—African American or Black students, Hispanic students, students in special education programs, and economically disadvantaged students—struggle with traditional assessments, which may create learning gaps. Grounded in Dewey, Vygotsky, and Bruner’s theories, the research problem and purpose of this qualitative single context exploratory case study was to explore high school teachers use of PBL as an innovation to address issues of equity, social justice, and cultural relevance to engage marginalized high school students. Purposeful sampling was utilized to identify 11 high school teachers who employ PBL from multiple campuses in a single school district. Data sources …