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A Perovskite Nanocomposite And Self-Assembled Nanoparticle-Decorated Cathode For Low Temperature Sofcs, Chunyang Yang, Guoan Wang, Xingjian Xue Jul 2025

A Perovskite Nanocomposite And Self-Assembled Nanoparticle-Decorated Cathode For Low Temperature Sofcs, Chunyang Yang, Guoan Wang, Xingjian Xue

Faculty Publications

One-pot route synthesis of an A-site Sm-doped simple perovskite with nominal composition Sm0.10Ba0.90Co0.8Fe0.2O3−δ leads to a novel perovskite nanocomposite containing ∼90% A-site cation deficient cubic simple perovskite Ba0.925(Co/Fe)0.962Sm0.038O3−δ and ∼10% orthorhombic layered perovskite SmBa(Co/Fe)2O5+δ. The synergy of the two phases in the nanocomposite results in high electrochemical kinetic properties at low temperatures. With the novel perovskite nanocomposite, a surface nanoparticle-decorated nanocomposite cathode is self-assembled through a one-step sintering process. The corresponding anode-supported cell delivers a peak power density of 1271 mW cm−2 …

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Electrochemical Immunosensor Using Cooh-Functionalized 3d Graphene Electrodes For Sensitive Detection Of Tau-441 Protein, S. Nazir, M. Dogan, Y. Wei, G. Pan Jul 2025

Electrochemical Immunosensor Using Cooh-Functionalized 3d Graphene Electrodes For Sensitive Detection Of Tau-441 Protein, S. Nazir, M. Dogan, Y. Wei, G. Pan

School of Engineering, Computing and Mathematics

Early diagnosis of Alzheimer’s disease (AD) is essential for effective treatment; however current diagnostic methods are often complex, costly, and unsuitable for point-of-care testing. Graphene-based biosensors offer an alternative due to their affordability, versatility, and high conductivity. However, graphene’s conductivity can be compromised when its carbon lattice is oxidized to introduce functional groups for biomolecule immobilization. This study addresses this challenge by developing an electrochemical immunosensor using carboxyl-modified commercial graphene foam (COOH-GF) electrodes. The conductivity of graphene is preserved by enabling efficient COOH modification through π–π non-covalent interactions, while antibody immobilization is optimized via EDC-NHS carbodiimide chemistry. The immunosensor detects …

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Beyond Translating Cultures: Organizational Cultural Brokering And Latin@/E/X Community Resilience After The "Mobile Home Parks" Fire, Christine Atalie Da Rosa Jul 2025

Beyond Translating Cultures: Organizational Cultural Brokering And Latin@/E/X Community Resilience After The "Mobile Home Parks" Fire, Christine Atalie Da Rosa

Dissertations and Theses

As wildfires increase in frequency and severity in rural communities, disaster management agencies are seeking to collaborate with community-based organizations (CBOs) working with rural, low-income Latin@/e/x communities to build wildfire resilience. This qualitative case study examines the critical role of CBOs rooted in their local, predominately low-income Latin@/e/x communities as cultural brokers in supporting Latin@/e/x wildfire survivors following the 2020 "Mobile Home Parks" Fire in a rural county in Oregon. Drawing from 23 semi-structured interviews, three focus groups, a review of relevant documents, and participant observations, the research investigates how Latin@/e/x CBOs navigated the complex cultural landscape between wildfire survivors …

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High Achievers Awards 2014 Jul 2025

High Achievers Awards 2014

University anniversary celebration materials

No abstract provided.

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Evaluating Generative Ai For Depression Diagnosis: Implications For Counselor Education And Supervision, Matthew Rensi, Chung-Fan Ni, Leo Gonzalez, Jr., Mindi Barta, Cass Dykeman, James Geisler Jul 2025

Evaluating Generative Ai For Depression Diagnosis: Implications For Counselor Education And Supervision, Matthew Rensi, Chung-Fan Ni, Leo Gonzalez, Jr., Mindi Barta, Cass Dykeman, James Geisler

Journal of Technology in Counselor Education and Supervision

This study evaluated the efficacy of three Generative AI tools—ChatGPT, Claude, and Gemini— in identifying Major Depressive Disorder (MDD) from 119 written clinical case descriptions. Each AI tool determined if cases met DSM-5 criteria for MDD. The results showed significant performance variations, with Gemini demonstrating an accuracy of 97%. These findings suggest the potential for AI assistance in clinical practice, while also underscoring the importance of professional judgment. The implications for counselor education include opportunities to integrate AI tools into training programs, particularly in courses on psychopathology and clinical skills. Educators can use these tools to enhance students’ diagnostic skills …

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Artificial Intelligence And Research: Resources And Implications For Counselor Educators, Alexandra Gantt-Howrey, Aileen Tierney, Natese R. Dockery, Uzma Khan, Kaprea Johnson, Erin M. Burgess Jul 2025

Artificial Intelligence And Research: Resources And Implications For Counselor Educators, Alexandra Gantt-Howrey, Aileen Tierney, Natese R. Dockery, Uzma Khan, Kaprea Johnson, Erin M. Burgess

Journal of Technology in Counselor Education and Supervision

Scholars have noted various benefits of artificial intelligence (AI) for researchers, though researchers have yet to explore what AI-research resources (AI-RR) are available to counselor educators and how AI-RR may be used to support counselor educators’ research efforts. We conducted a systematic website review to describe the AI-RR available to counselor educators and implications for their use, yielding N = 31 final resources. Findings indicated AI-RR may support quantitative, qualitative, and mixed methods counseling research efforts. Implications include a need for counselor educators and scholars to enhance their knowledge and application of AI in their research.

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Collective Judo: Ethics And Access To Justice In Mass Arbitration Companies, Michael Doman Jul 2025

Collective Judo: Ethics And Access To Justice In Mass Arbitration Companies, Michael Doman

Pepperdine Dispute Resolution Law Journal

Over the past five years, several law firms have engaged in “mass arbitration.” This strategy involves aggregating hundreds or thousands of arbitrations and filing them all at once against a company, sometimes forcing the company to either pay huge sums to defend all the claims or settle with all the claimants. This Article discusses how mass arbitration coordinated by nonlawyers and companies should be legally protected by courts and regulators, provided that companies in this space erect specific ethical safeguards. Most notably, mass arbitration companies should implement better procedures to obtain informed consent from their customers, using technology to lower …

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Stranger Disputes: When Artificial Intelligence Turns Arbitration Upside Down, Imre Stephen Szalai Jul 2025

Stranger Disputes: When Artificial Intelligence Turns Arbitration Upside Down, Imre Stephen Szalai

Pepperdine Dispute Resolution Law Journal

Arbitration agreements are everywhere in the United States. These agreements already block access to courts in a troubling manner, and pursuant to these agreements, parties must resolve their disputes before a private, human arbitrator with broad, virtually unreviewable powers. However, with the growth of AI, companies could easily redraft their contracts to require arbitration before non-human bots or AI arbitrators instead of a human arbitrator. Based on the history, values, policy, and text of the Federal Arbitration Act (FAA), this Article concludes that the FAA would govern and support the use of an AI arbitrator. As a result, a pre-dispute …

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Enhanced Restoration Of Covid-19 Ct Scan Images Utilizing Advanced Wiener Filtering Techniques, Warqaa Shaher Alazawee, Marwa Subhi Ibrahim, Raghda Salam Al Mahdawi, Ali Albu-Rghaif, Ahmed Sabri Altaie Jul 2025

Enhanced Restoration Of Covid-19 Ct Scan Images Utilizing Advanced Wiener Filtering Techniques, Warqaa Shaher Alazawee, Marwa Subhi Ibrahim, Raghda Salam Al Mahdawi, Ali Albu-Rghaif, Ahmed Sabri Altaie

Iraqi Journal for Computer Science and Mathematics

COVID-19, caused by the SARS-CoV-2 virus, was declared a global pandemic by the World Health Organization (WHO) and rapidly spread worldwide from late 2019. While Reverse Transcription Polymerase Chain Reaction (RT-PCR) is the primary diagnostic tool, its sensitivity ranges from only 60% to 70%, leading to false negatives. Computed Tomography (CT) imaging has emerged as a valuable alternative for accurate diagnosis; however, the quality of CT images is often degraded by motion-induced blur and additive noise, particularly in children, individuals with mental health conditions, or those with phobias of CT scans. This study aims to enhance COVID-19 CT image quality …

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Highly Pathogenic Avian Influenza Resulted In Unprecedented Reproductive Failure And Movement Nehaviour By Northern Gannets, Noah G. Careen, Sydney M. Collins, Kyle J. N. D’Entremont, Jordan Wight, Ishraq Rahman, Kathryn E. Hargan, Andrew S. Lang, William A. Montevecchi Jul 2025

Highly Pathogenic Avian Influenza Resulted In Unprecedented Reproductive Failure And Movement Nehaviour By Northern Gannets, Noah G. Careen, Sydney M. Collins, Kyle J. N. D’Entremont, Jordan Wight, Ishraq Rahman, Kathryn E. Hargan, Andrew S. Lang, William A. Montevecchi

Marine Ornithology

In 2022, highly pathogenic avian influenza (HPAI) virus resulted in mass mortality throughout seabird colonies in the North Atlantic Ocean. While mortalities and transmission of the virus are being documented, other effects are less understood. We documented nest abandonment and unprecedented reproductive failure by Northern Gannets Morus bassanus at Cape St. Mary’s, Newfoundland and Labrador, Canada, the species’ southernmost colony. Reproductive success in 2022 was the lowest on record at 17%, which was likely a result of adults abandoning the nest and succumbing to avian influenza virus (AIV) infection. Following the AIV outbreak at Cape St. Mary’s, we also documented …

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Melanistic Razorbill Alca Torda At Machias Seal Island, New Brunswick, Canada, Heather L. Major, Tabatha L. Cormier, Antony W. Diamond Jul 2025

Melanistic Razorbill Alca Torda At Machias Seal Island, New Brunswick, Canada, Heather L. Major, Tabatha L. Cormier, Antony W. Diamond

Marine Ornithology

Aberrant colouration in birds is relatively common but melanism occurs infrequently. We report an observation of a melanistic Razorbill Alca torda attending the nesting colony at Machias Seal Island, Bay of Fundy in 2022 and 2023. This is the third reported occurrence of a melanistic Razorbill and the first in over 100 years.

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Effects Of A Vagrant Arctic Fox Alopex Lagopus On An Isolated Newfoundland Seabird Community, Raul Zabala Belenguer, Amy C. Wilson, Katja H. Kochvar, Sabina I. Wilhelm, Pierre-Paul Bitton Jul 2025

Effects Of A Vagrant Arctic Fox Alopex Lagopus On An Isolated Newfoundland Seabird Community, Raul Zabala Belenguer, Amy C. Wilson, Katja H. Kochvar, Sabina I. Wilhelm, Pierre-Paul Bitton

Marine Ornithology

We report predation by an Arctic Fox Alopex lagopus on two seabird species, Atlantic Puffins Fratercula arctica and Leach’s Storm Petrels Hydrobates leucorhous, nesting on Bakeapple Island, Little Fogo Islands, Newfoundland, Canada. This event took place in 2022, when a whole-island inspection revealed that fox, facilitated by over-ice invasion, killed at least 139 adult storm petrels and 8 puffin chicks. The fox also dug out 83 storm petrel and 4 puffin burrows. Breeding by seabirds on the island, which harbours some of the northernmost colonies in Newfoundland, was also largely disrupted; we documented extremely low egg and chick production values …

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Tracked Gulls Help Identify Potential Zones Of Interaction Between Whales And Shipping Traffic, Megan A. Cimino, Heather Welch, Jarrod A. Santora, David Kroodsma, Elliott L. Hazen, Steven J. Bograd, Pete Warzybok, Jaime Jahncke, Scott A. Shaffer Jul 2025

Tracked Gulls Help Identify Potential Zones Of Interaction Between Whales And Shipping Traffic, Megan A. Cimino, Heather Welch, Jarrod A. Santora, David Kroodsma, Elliott L. Hazen, Steven J. Bograd, Pete Warzybok, Jaime Jahncke, Scott A. Shaffer

Marine Ornithology

Seabird-vessel interactions are often studied through the lens of fisheries bycatch, but seabirds encounter many watercraft types. Western Gulls Larus occidentalis breeding on the Farallon Islands (California, USA) have a foraging domain that encompasses both shipping lanes and productive fishing grounds, resulting in ample opportunities for vessel encounters. Previous research showed that these Western Gulls can serve as ecosystem indicators because their foraging behavior is linked to ocean prey conditions, and because their foraging grounds overlap with that of Humpback Whales Megaptera novaeangliae, which can make prey accessible. Because ship strikes and entanglement in fishing gear are concerns for whales …

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Intra-Annual Shifts In Atlantic Puffin Fratercula Arctica Depredation And Kleptoparasitism By Larus Gulls At A Multi-Species Seabird Colony, Gibson M. Rieger, Gail K. Davoren Jul 2025

Intra-Annual Shifts In Atlantic Puffin Fratercula Arctica Depredation And Kleptoparasitism By Larus Gulls At A Multi-Species Seabird Colony, Gibson M. Rieger, Gail K. Davoren

Marine Ornithology

Great Black-backed Gulls Larus marinus and American Herring Gulls L. argentatus smithsonianus are considered dietary generalists at the population level: they consume a variety of prey types, including the adults and offspring of other seabirds, and they shift among prey types as availability varies. Atlantic Puffin Fratercula arctica adults, eggs, and chicks are often the target of depredation, and adults are also susceptible to kleptoparasitic attacks by large gulls during their summer breeding season in coastal Newfoundland, Canada. We investigated the depredation and kleptoparasitism of puffins by large gulls during July–August 2021/22 at a multi-species breeding colony on the northeast …

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A Systematic Review Of Trends In Research On Seabird Behavioral Flexibility, M. Candelaria Biagiotti Barchiesi, Laura M. Biondi, German O. García Jul 2025

A Systematic Review Of Trends In Research On Seabird Behavioral Flexibility, M. Candelaria Biagiotti Barchiesi, Laura M. Biondi, German O. García

Marine Ornithology

There has been an increase in interest in the study of behavioral flexibility for its role in how organisms face disturbances and changes in their environment. However, there is not much research on this topic for seabirds, whose conservation status is affected by multiple issues related to changes in their environment. The goal of this paper was to analyze research on seabird behavioral flexibility and to identify knowledge gaps. A systematic review was conducted using academic search engines that included articles published from 1986 to 2022. In the 143 articles that were analyzed, the following were identified: publication date, family …

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Best Practices For Using Drones In Seabird Monitoring And Research, Alice J. Edney, Tom Hart, Mark J. Jessopp, Alex Banks, Lucy E. Clarke, Laure Cugnière, Kyle H. Elliot, Ignacio Juarez Martinez, Alexandra Kilcoyne, Matthew Murphy, Ruedi G. Nager, Norman Ratcliffe, Danielle L. Thompson, Robin M. Ward, Matt J. Wood Jul 2025

Best Practices For Using Drones In Seabird Monitoring And Research, Alice J. Edney, Tom Hart, Mark J. Jessopp, Alex Banks, Lucy E. Clarke, Laure Cugnière, Kyle H. Elliot, Ignacio Juarez Martinez, Alexandra Kilcoyne, Matthew Murphy, Ruedi G. Nager, Norman Ratcliffe, Danielle L. Thompson, Robin M. Ward, Matt J. Wood

Marine Ornithology

Over the past decade, drones have become increasingly popular in environmental biology and have been used to study wildlife on all continents. Drones have become of global importance for surveying breeding seabirds by providing opportunities to transform monitoring techniques and allow new research on some of the most threatened birds. However, such fast-changing and increasingly available technology presents challenges to regulators responding to requests to carry out surveys and to researchers ensuring their work follows best practices and meets legal and ethical standards. Following a workshop convened at the 14th International Seabird Group Conference and a subsequent literature search, we …

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Characterizing The Diet Of A Threatened Seabird, The Marbled Murrelet Brachyramphus Marmoratus, Using High-Throughput Sequencing, Emily D. Fountain, Paige J. Kulzer, Richard T. Golightly, James W. Rivers, Scott F. Pearson, Martin G. Raphael, Matthew G. Betts, S. Kim Nelson, Daniel D. Roby, Nicholas F. Kryshak, Stephanie Schneider, M. Zachariah Peery Jul 2025

Characterizing The Diet Of A Threatened Seabird, The Marbled Murrelet Brachyramphus Marmoratus, Using High-Throughput Sequencing, Emily D. Fountain, Paige J. Kulzer, Richard T. Golightly, James W. Rivers, Scott F. Pearson, Martin G. Raphael, Matthew G. Betts, S. Kim Nelson, Daniel D. Roby, Nicholas F. Kryshak, Stephanie Schneider, M. Zachariah Peery

Marine Ornithology

Understanding prey consumption patterns is critical to understanding the ways in which seabirds cope with a changing ocean. However, characterizing the dietary habitats of seabirds can be challenging. In this study, we investigated the diet of the Marbled Murrelet Brachyramphus marmoratus population that lives in waters off California, Oregon, and Washington, USA, using fecal DNA, custom metabarcoding, and high-throughput sequencing. Murrelets were captured at sea by dip-netting at night. Across this region, murrelets consumed highly diverse prey types including 17 fish species and 10 invertebrate species, in accord with previous work indicating the species’ forage on a wide range of …

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Flight Altitudes Of Chick-Rearing Rhinoceros Auklets Cerorhinca Monocerata Measured By Gps Logger, Jumpei Okado, Yutaka Watanuki Jul 2025

Flight Altitudes Of Chick-Rearing Rhinoceros Auklets Cerorhinca Monocerata Measured By Gps Logger, Jumpei Okado, Yutaka Watanuki

Marine Ornithology

Alcids generally fly at low altitudes (below 5 m) over the sea but may occasionally fly higher in certain areas, which may put them at risk of collision with turbine blades in offshore wind farms. We used GPS loggers to investigate the location and altitude of flying Rhinoceros Auklets Cerorhinca monocerata. They typically flew at low altitudes averaging < 1 m but flew higher (> 20 m) when returning the last 5–10 km to their colony, which was located at an elevation of 120–130 m above sea level. Thus, the region over which Rhinoceros Auklets fly highest may vary, depending on the location and elevation of their …

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High-Contrast Banners Designed To Deter Seabirds From Gillnets Reduce Target Fish Catch, William A. Montevecchi, Jessika Lamarre, Yann Rouxel, Marina W. Montevecchi, Robert J. Blackmore, Christina Bourne, Caleb S. Spiegel Jul 2025

High-Contrast Banners Designed To Deter Seabirds From Gillnets Reduce Target Fish Catch, William A. Montevecchi, Jessika Lamarre, Yann Rouxel, Marina W. Montevecchi, Robert J. Blackmore, Christina Bourne, Caleb S. Spiegel

Marine Ornithology

The incidental catch of non-target species in fishing gear (i.e., bycatch) is a global threat to sustainability and conservation in marine systems. Seabirds experience substantial bycatch mortality, with gillnets having the greatest impacts of any fishing gear. Widespread mitigation to reduce seabird bycatch in gillnet fisheries is tenuous, and information on bycatch in inshore surface-set gillnets remains a major knowledge gap. To help address these issues, we collaborated with commercial fishers to test the efficacy of high-contrast banners designed to alert seabirds. In waters of Newfoundland, Canada, banners were attached to surface-set gillnets for Atlantic Herring Clupea harengus and were …

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Underwater Kleptoparasitism On A Human Diver By A Galapagos Flightless Cormorant Nannopterum Harrisi, Juan Manuel Álava-Jurado, Michael J. Kingsford, Margarita Brandt, Eric Dorfman Jul 2025

Underwater Kleptoparasitism On A Human Diver By A Galapagos Flightless Cormorant Nannopterum Harrisi, Juan Manuel Álava-Jurado, Michael J. Kingsford, Margarita Brandt, Eric Dorfman

Marine Ornithology

We describe underwater kleptoparasitism on a human diver by a Galapagos Flightless Cormorant Nannopterum harrisi, a behavior that has not been previously described for this species.

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When Ornithology Meets Ethnology And Archeology: The Birds Of The Bird-Cult At Rapa Nui (Easter Island) And Their Demise, Manuel Marín Jul 2025

When Ornithology Meets Ethnology And Archeology: The Birds Of The Bird-Cult At Rapa Nui (Easter Island) And Their Demise, Manuel Marín

Marine Ornithology

The disappearance of the bird species involved in the bird-cult of Rapa Nui (Easter Island) was examined. The cult was a contest in which the winner gathered the first seabird egg of the year from a near-shore islet, allowing the winner to become the Tangata Manu, or Birdman. This title provided a heightened status, bringing social and economic benefits and a way of being closer to their gods. Three seabird species were involved in the bird-cult: Great Frigatebird Fregata minor, Sooty Tern Onychoprion fuscatus, and the Spectacled Tern Onychoprion lunatus, none of which currently breed in the area. Rock art …

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European-Asian Population Of Great White Pelican Pelecanus Onocrotalus, From Breeding To Wintering: A Review, Khashayar Mahdiany Bora, Ghazaleh Mirbazel, Mohammadjavad Tajadod Jul 2025

European-Asian Population Of Great White Pelican Pelecanus Onocrotalus, From Breeding To Wintering: A Review, Khashayar Mahdiany Bora, Ghazaleh Mirbazel, Mohammadjavad Tajadod

Marine Ornithology

Great White Pelican Pelecanus onocrotalus (hereafter: GWP) is an IUCN Near Threatened species having two distinct populations. The first population is a migratory European-Asian population that has an extensive Palearctic breeding range from eastern Europe to western Asia and has exhibited a sharp decline during the last couple of decades. The second population, on the other hand, is a sedentary but stable population that breeds mostly in Kenya, South Africa, and Namibia. Herein, we review the literature available on the occurrence patterns of these populations. Many studies on the migratory population show that conditions during winter have substantial impacts on …

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The Potential Of Ecologists To Enhance Our Understanding Of Seabird Health, Melanie R. Wells, Annie Philips, Mary-Anne Lea, Scott Carver Jul 2025

The Potential Of Ecologists To Enhance Our Understanding Of Seabird Health, Melanie R. Wells, Annie Philips, Mary-Anne Lea, Scott Carver

Marine Ornithology

Ecologists play a pivotal role in the detection and investigation of population changes in seabirds and by doing so have significant potential to contribute to enhancing knowledge of seabird health. This review highlights key examples in the literature where ecologists have employed diligent passive health surveillance and/or undertaken targeted investigations of seabirds, strategies that have augmented our knowledge of seabird health at individual and population levels. Within the context of One Health, an integrated approach to perceiving and managing health, this review amalgamates veterinarian and ecology disciplines by summarising auxiliary metrics of clinical health that may be considered for incorporation …

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The Influence Of Breeding Status And Nest Site Location On Marine Habitat Use By Marbled Murrelet Brachyramphus Marmoratus, Sonya A. Pastran, David B. Lank, Patrick D. O’Hara, Russell W. Bradley, Cecilia Lougheed, Lynn W. Lougheed, Nadine R. Parker, Laura A. Mcfarlane Tranquilla, Elizabeth A. Krebs, Fred Cooke, Douglas F. Bertram Jul 2025

The Influence Of Breeding Status And Nest Site Location On Marine Habitat Use By Marbled Murrelet Brachyramphus Marmoratus, Sonya A. Pastran, David B. Lank, Patrick D. O’Hara, Russell W. Bradley, Cecilia Lougheed, Lynn W. Lougheed, Nadine R. Parker, Laura A. Mcfarlane Tranquilla, Elizabeth A. Krebs, Fred Cooke, Douglas F. Bertram

Marine Ornithology

The Marbled Murrelet Brachyramphus marmoratus is a threatened seabird that relies on old-growth forest for nesting. We compare marine space use between breeding and non-breeding birds, and how marine home range locations and overlap vary with respect to nesting location and breeding status. We collected very high frequency (VHF) radio-telemetry data in southern British Columbia from Clayoquot Sound (190 birds; 2000–2002) and Desolation Sound (206 birds; 1998–2001). The sites differ strongly in their oceanic exposure and surrounding terrestrial features. Kernel utilization distribution-based estimates showed that breeders and non-breeders had similar overall distributions, but breeders were more spatially aggregated. Pooled home …

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At-Colony Behaviour Of Great Black-Backed Gulls Larus Marinus Following Breeding Failure, Laurie D. Maynard, Julia Gulka, Edward Jenkins, Gail K. Davoren Jul 2025

At-Colony Behaviour Of Great Black-Backed Gulls Larus Marinus Following Breeding Failure, Laurie D. Maynard, Julia Gulka, Edward Jenkins, Gail K. Davoren

Marine Ornithology

Territoriality for breeding sites comes at an energetic cost—individuals actively defend the site from competitors and potential predators, thus precluding themselves from self-maintenance (e.g., foraging, preening) or offspring care. Breeding individuals are also constrained to central place foraging within a limited range of the territory. For these reasons, many seabirds do not spend extensive periods or make regular visits to the colony following breeding failure. To investigate behaviour following breeding failure, we studied colony and nest attendance and daily number of visits for six Great Black-backed Gulls Larus marinus that had failed to breed following global positioning system (GPS) tag …

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Nocturnal Flight Activity By Northern Gannets Morus Bassanus In Response To Predator Presence, Kyle J.N. D’Entremont, William A. Montevecchi Jul 2025

Nocturnal Flight Activity By Northern Gannets Morus Bassanus In Response To Predator Presence, Kyle J.N. D’Entremont, William A. Montevecchi

Marine Ornithology

The Northern Gannet Morus bassanus typically flies only during the day, with minimal flight activity following civil twilight. Here we document nocturnal flight activity by Northern Gannets in response to predation risk by Eastern Coyotes Canis latrans. Eight parental gannets were fitted with GPS/time-depth recorders on 15 July 2021 at mainland nest sites at Cape St. Mary’s, Newfoundland, Canada. Previously, among 506 foraging trips in 2019 and 2020 that were investigated using biologging, only two were initiated at night, suggesting nocturnal departures for foraging are very rare at this colony. Then, however, killings of chicks by coyotes occurred within our …

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Composition Of The Seabird Community Off French Guiana, Claire Pusineri, Ludivine Martinez, Benjamin De Montgolfier, Dinis Geraldes, Paul Lenrume, Amandine Bordin, Morjane Safi, Alessandra Suardi, Virginie Wyss, Brendan Leclerc, Vincent Rufray Jul 2025

Composition Of The Seabird Community Off French Guiana, Claire Pusineri, Ludivine Martinez, Benjamin De Montgolfier, Dinis Geraldes, Paul Lenrume, Amandine Bordin, Morjane Safi, Alessandra Suardi, Virginie Wyss, Brendan Leclerc, Vincent Rufray

Marine Ornithology

We provide information on the seabirds occurring year-round in waters of the French Guiana Exclusive Economic Zone, based on data obtained from three boat-based campaigns: a campaign by the Groupe d’Étude et de Protection des Oiseaux de Guyane was conducted for four days every two months from July 2011 to June 2012; a campaign by Cohabys was performed for five days per month from January to May 2018; and a campaign by Ocean Science & Logistic consisted of four 10-day surveys conducted in June, July, September, and October 2018. Overall, 30 seabird species within 1110 groups of birds were sighted …

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Seabird Abundance And Distribution Off Western Iberian Waters Estimated Through Aerial Surveys, Hélder Araújo, Pedro Correia-Rodrigues, Jorge Bastos-Santos, Marisa Ferreira, Andreia T. Pereira, Jose Martinez-Cedeira, José Vingada, Catarina Eira Jul 2025

Seabird Abundance And Distribution Off Western Iberian Waters Estimated Through Aerial Surveys, Hélder Araújo, Pedro Correia-Rodrigues, Jorge Bastos-Santos, Marisa Ferreira, Andreia T. Pereira, Jose Martinez-Cedeira, José Vingada, Catarina Eira

Marine Ornithology

Western Iberian waters are important migratory flyways, stopover sites, and wintering areas for several of the world’s seabird species. To describe seabird species composition, distribution, and abundance in these waters, we performed six aerial surveys in September and/ or October of each year, 2010–2015, covering 74 840 km2. Using line-transect methodology, 27 396 seabird sightings from 17 taxonomic groups were recorded along 10496.3 nautical miles (19 433 km). Using the program “Distance,” annual and overall abundance estimates were obtained for nine taxonomic groups: Balearic Shearwater Puffinus mauretanicus, Great Shearwater Ardenna gravis, Cory’s Shearwater Calonectris borealis, shearwaters, Northern Gannet Morus bassanus, …

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Spatial Effects In Relation To Reproductive Performance Of Common Murres Uria Aalge At A Re-Established Colony, Gerard J. Mcchesney, Julie L. Yee, Michael W. Parker, William M. Perry, Harry R. Carter, Richard T. Golightly, Stephen W. Kress Jul 2025

Spatial Effects In Relation To Reproductive Performance Of Common Murres Uria Aalge At A Re-Established Colony, Gerard J. Mcchesney, Julie L. Yee, Michael W. Parker, William M. Perry, Harry R. Carter, Richard T. Golightly, Stephen W. Kress

Marine Ornithology

A main goal of seabird colony restoration is for the colony to become self-sustaining. To do so, elevated rates must be attained in (1) reproductive success and (2) recruitment by immigrants and birds produced at the colony. Thus, an understanding of the factors affecting reproductive success and recruitment at restoration sites is vital. We examined how spatial features at the colony level affected reproductive success of Common Murres Uria aalge (hereafter, murres) over a six-year period at Devil’s Slide Rock, California, a colony re-established using social attraction techniques. Clusters of sites with similar egg-laying dates, as well as high hatching …

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Philopatry, Mate Fidelity, And Nest-Site Fidelity For South Polar Skuas Stercorarius Maccormicki At The Vestfold Hills, East Antarctica, John Van Den Hoff, Kris Carlyon, Louise Emmerson, Clive R. Mcmahon, Gary D. Miller Jul 2025

Philopatry, Mate Fidelity, And Nest-Site Fidelity For South Polar Skuas Stercorarius Maccormicki At The Vestfold Hills, East Antarctica, John Van Den Hoff, Kris Carlyon, Louise Emmerson, Clive R. Mcmahon, Gary D. Miller

Marine Ornithology

Antarctica experiences continual spatial and temporal expansions in human activities, but information to understand how resident species may be impacted is usually inadequate. We analysed resights of South Polar Skuas Stercorarius maccormicki that were individually marked with leg rings during 1999–2004 to compare breeding behaviours such as philopatry, adult mate fidelity, and site fidelity in the Vestfold Hills population, East Antarctica, with other regions. Despite their impressive dispersal capabilities, philopatry for birds resighted in the study area was within 4 km of the natal nest, and adult nest-fidelity was within 1 km of a previous nest site. Such faithfulness to …

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