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Articles 301 - 330 of 15168
Full-Text Articles in Entire DC Network
Stranded Humboldt Penguins Spheniscus Humboldti With Bilateral Blindness Along Chilean Coasts, Alberto J. Alaniz, Catalina Espinoza-Contreras, Isabel Hernández, Pablo M. Vergara, Darío Moreira-Arce, Mario A. Carvajal, Claudia Hidalgo-Corrotea, Ana Francisca Soto
Stranded Humboldt Penguins Spheniscus Humboldti With Bilateral Blindness Along Chilean Coasts, Alberto J. Alaniz, Catalina Espinoza-Contreras, Isabel Hernández, Pablo M. Vergara, Darío Moreira-Arce, Mario A. Carvajal, Claudia Hidalgo-Corrotea, Ana Francisca Soto
Marine Ornithology
Bilateral blindness is an important cause of mortality in penguin chicks. However, this pathological condition remains little explored for the endangered Humboldt Penguin Spheniscus humboldti. Here, we present the first spatiotemporal dataset detailing young Humboldt Penguins having bilateral blindness. Information was gathered from birds found stranded along the coast of continental Chile over a ten-year (2011– 2021) period. We present a number of cases analyzed by geographical distribution, sex, body mass, and season. Preliminary analysis shows that 73.3% of cases were concentrated along Chile’s central coast. Only 17.1% of individuals were sexed, and the distribution was slightly skewed in favor …
Masthead, Pacific Seabird Group
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
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 …
Disparate Decadal Trends In Kaua'i Seabird Populations: Possible Effects Of Resource Competition And Anthropogenic Impacts, David Ainley, Stephanie Schneider, Gregory Spencer
Disparate Decadal Trends In Kaua'i Seabird Populations: Possible Effects Of Resource Competition And Anthropogenic Impacts, David Ainley, Stephanie Schneider, Gregory Spencer
Marine Ornithology
Population trends of seabirds nesting on Kaua‘i in the Hawaiian Islands, USA, were assessed across four decades using data from the Save Our Shearwaters (SOS) program. Started in 1979, the SOS database was intended to track the incidence of attraction of Kaua‘i’s seabirds to artificial lights, but recovery rate data also became useful to index population trends. These data documented precipitous declines of Newell’s Shearwater Puffinus newelli through 2017. Here we expand on those efforts by including four additional species and consider data to 2018. All five species exhibited increasing trends during SOS’s first decade, coincidental with increasing human population, …
Observation Of A Leucistic Brown Noddy Anous Stolidus In Tetiaroa, French Polynesia, Simon Ducatez, Jayna L. Devore
Observation Of A Leucistic Brown Noddy Anous Stolidus In Tetiaroa, French Polynesia, Simon Ducatez, Jayna L. Devore
Marine Ornithology
We observed a leucistic Brown Noddy Anous stolidus on the atoll of Tetiaroa in French Polynesia. This individual was mostly light grey, similar in coloration to a Blue Noddy Anous ceruleus. To the best of our knowledge, this is the first report of a Brown Noddy with such plumage. Brown Noddies and White Terns Gygis alba were particularly aggressive towards the aberrantly colored Brown Noddy.
Masthead, Pacific Seabird Group
Masthead, Pacific Seabird Group
Infanticide In Highly Urbanized Colonies Of Black Skimmers Rynchops Niger, Elizabeth A. Forys, Sarah K. Beres, Abigail L. Mckay, Olivia N. Spicer
Infanticide In Highly Urbanized Colonies Of Black Skimmers Rynchops Niger, Elizabeth A. Forys, Sarah K. Beres, Abigail L. Mckay, Olivia N. Spicer
Marine Ornithology
Infanticide, which is the killing of dependent offspring, occurs in many species of colonial seabirds. Most infanticide attempts are made when chicks wander outside their parents’ territories and are more likely to occur when the colony experiences a disturbance or food is limited. Our objective was to determine the rate of infanticide at three Black Skimmer Rynchops niger colonies located on highly urbanized beaches in Pinellas County, Florida, USA. Infanticide occurred 42 times during 3 223 hours of monitoring (0.013 attempts per hour) over four breeding seasons (2018–2021). More than one third of the infanticide attempts occurred after a disturbance, …
No Evidence Of Avian Malaria In Two Mediterranean Endemic Seabirds, Luca Ilahiane, Federico De Pascalis, Danilo Pisu, David Pala, Federica Ferrario, Marco Cucco, Diego Rubolini, Jacopo G. Cecere, Irene Pellegrino
No Evidence Of Avian Malaria In Two Mediterranean Endemic Seabirds, Luca Ilahiane, Federico De Pascalis, Danilo Pisu, David Pala, Federica Ferrario, Marco Cucco, Diego Rubolini, Jacopo G. Cecere, Irene Pellegrino
Marine Ornithology
In birds, pathogens and diseases—such as avian malaria—can have severe detrimental effects on individual fitness. Pathogen prevalence can vary across species and may differ between populations living in different localities, but screening can aid in our understanding of a disease’s distribution and parasite-host interactions. Although seabirds generally exhibit low avian malaria infection patterns, blood parasites of several species and populations have never been investigated in detail. Using molecular techniques, we screened for blood parasites in two Mediterranean seabirds, the Scopoli’s Shearwater Calonectris diomedea and the Mediterranean Storm Petrel Hydrobates pelagicus melitensis. In addition, we searched for and sampled potential vector …
Masthead, Pacific Seabird Group
Reviews: Hope Matters: Why Changing The Way We Think Is Critical To Solving The Environmental Crisis (Kelsey, E.); The Gull Next Door: Portrait Of A Misunderstood Bird (Taylor, M.), Rachel T. Buxton, Madeleine Goumas
Reviews: Hope Matters: Why Changing The Way We Think Is Critical To Solving The Environmental Crisis (Kelsey, E.); The Gull Next Door: Portrait Of A Misunderstood Bird (Taylor, M.), Rachel T. Buxton, Madeleine Goumas
Marine Ornithology
No abstract provided.
On-Land Foraging By Leach's Storm Petrels Oceanodroma Leucorhoa Coincides With Anomalous Weather Conditions, Kyle J.N. D’Entremont, Robert J. Blackmore, Sydney M. Collins, Dave Brown, Ian L. Jones, Bruce Mactavish, Sabina I. Wilhelm, William A. Montevecchi
On-Land Foraging By Leach's Storm Petrels Oceanodroma Leucorhoa Coincides With Anomalous Weather Conditions, Kyle J.N. D’Entremont, Robert J. Blackmore, Sydney M. Collins, Dave Brown, Ian L. Jones, Bruce Mactavish, Sabina I. Wilhelm, William A. Montevecchi
Marine Ornithology
We describe the first known documentation of on-land foraging by Leach’s Storm Petrels Oceanodroma leucorhoa, a behaviour that has been documented only once before among members of the family Hydrobatidae. During a rain/windstorm from 15 to 17 July 2020 in eastern Newfoundland, individuals fed on coastally spawning and beach-cast capelin Mallotus villosus. This behaviour occurred in conjunction with a marine heatwave in the species’ foraging range. Examination showed that wrecked birds were emaciated with negligible stomach contents. This finding, combined with the abnormal weather and foraging behaviour, suggests that these birds were in a weakened state preceding stranding in coastal …
Masthead, Pacific Seabird Group
Southern Influx Of The Pantropical Bulwer's Petrel Bulweria Bulwerii Into The Tasman Sea, Simon B. Z. Gorta
Southern Influx Of The Pantropical Bulwer's Petrel Bulweria Bulwerii Into The Tasman Sea, Simon B. Z. Gorta
Marine Ornithology
Seabirds exploit marine habitats for resources, responding to many complex environmental signals that ultimately drive their distributions. Occasionally, influxes of seabird species to regions outside their normal range occur and determining the drivers of these patterns can aid in understanding their ecology and their conservation. I documented five birdwatching observations of Bulwer’s Petrel Bulweria bulwerii in the Tasman Sea between 24 January and 08 March 2020, roughly 2000 km south of their core range. Based on demographic, environmental, and anecdotal observations of seabirds, cetaceans, and bait fish, I suggest that the influx was most likely resource-driven, rather than accidental, age-related, …
Masthead, Pacific Seabird Group
Inside Front Cover, Pacific Seabird Group
Number And Distribution Records Of Caspian Tern Hydroprogne Caspia In Indonesia, With Special Reference To Sumatra, Muhammad Iqbal, Yus Rusila Noor, Deni Mulyana, Henni Martini, Ferry Hasudungan, Iwan Febrianto, Fransisca Noni Tirtaningtyas, Arum Setiawan, Indra Yustian, Hilda Zulkifli
Number And Distribution Records Of Caspian Tern Hydroprogne Caspia In Indonesia, With Special Reference To Sumatra, Muhammad Iqbal, Yus Rusila Noor, Deni Mulyana, Henni Martini, Ferry Hasudungan, Iwan Febrianto, Fransisca Noni Tirtaningtyas, Arum Setiawan, Indra Yustian, Hilda Zulkifli
Marine Ornithology
We summarize all reports of Caspian Tern Hydroprogne caspia recorded in Indonesia, with particular focus on Sumatra (1983–2019). There were 29 records in total, which together indicate that the Caspian Tern is a regular visitor to Indonesia, in contrast to previous assumptions that it is rare. This species has been recorded during the non-breeding period (September to March in Indonesia, and August to April in Sumatra) in small numbers ranging from one to 40 birds. Many potential sites for this species, particularly along east coast of Sumatra, have still not been well explored. Additional search efforts will advance our knowledge …
Wedge-Tailed Shearwater Ardenna Pacifica Fallout Patterns Inform Targeted Management, Brooke Friswold, Keith Swindle, David Hyrenbach, Melissa R. Price
Wedge-Tailed Shearwater Ardenna Pacifica Fallout Patterns Inform Targeted Management, Brooke Friswold, Keith Swindle, David Hyrenbach, Melissa R. Price
Marine Ornithology
Seabird fledglings are often attracted to artificial, bright lights, leading to their grounding. This phenomenon is termed “fallout” and is associated with an increased risk of mortality from land-based threats. This study evaluated temporal trends and spatial factors, such as fallout clustering near lights and proximity to colonies, to inform targeted management actions. Standardized surveys were conducted from 2002 to 2010 for Wedge-tailed Shearwater Ardenna pacifica (WTSH) fallout on the island of O‘ahu, Hawai‘i, USA. First, yearly fallout counts along the transect showed a two-year cycle and identified 25 November as the date with the highest fallout across years. Second, …
Masthead, Pacific Seabird Group
Absence Of Coronavirus In Terns In The Western Indian Ocean?, Camille Lebarbenchon, Chris Feare, Christine Larose, Marie-Alice Simbi, Solenn Boucher, Audrey Jaeger, Matthieu Le Corre
Absence Of Coronavirus In Terns In The Western Indian Ocean?, Camille Lebarbenchon, Chris Feare, Christine Larose, Marie-Alice Simbi, Solenn Boucher, Audrey Jaeger, Matthieu Le Corre
Marine Ornithology
We investigated coronavirus circulation in three tern species on four islands of the Western Indian Ocean (Bird, Reunion, Europa, Juan de Nova). None of the 2019 samples tested positive by reverse-transcription polymerase chain reaction. We discuss the implications of these findings in terms of host-species range, ecological drivers of virus transmission, and diagnostic tools.
A Petrel Breeding Diversity Hotspot: Raivavae Island (Austral Islands, French Polynesia), With A Need For Conservation Action, Vincent Bretagnolle, Yves David, Thomas Ghestemme, Jean-François Butaud, Tehani Withers, Hadoram Shirihai, Jean-Claude Thibault
A Petrel Breeding Diversity Hotspot: Raivavae Island (Austral Islands, French Polynesia), With A Need For Conservation Action, Vincent Bretagnolle, Yves David, Thomas Ghestemme, Jean-François Butaud, Tehani Withers, Hadoram Shirihai, Jean-Claude Thibault
Marine Ornithology
Raivavae is a small island in the Austral Islands of French Polynesia that is surrounded by a lagoon with 28 islets. Its marine avifauna is one of the least known and least studied in French Polynesia. Overall, seabird surveys in the various Austral Islands have been extremely sparse. This study addresses this need, using both historical and recent findings. The results show high species richness, with 10 breeding procellarid species, though none are numerous. We also update the knowledge on breeding petrels from other Austral Islands (except Rapa) and discuss the consequences of these findings in terms of their conservation …
Assessment Of Tufted Puffin Fratercula Cirrhata Diet Using Dna Metabarcoding, Thomas P. Good, Andrew O. Shelton, Abigail H. Wells, Ana Ramón-Laca, Ramon Gallego, Peter J. Hodum, Scott F. Pearson
Assessment Of Tufted Puffin Fratercula Cirrhata Diet Using Dna Metabarcoding, Thomas P. Good, Andrew O. Shelton, Abigail H. Wells, Ana Ramón-Laca, Ramon Gallego, Peter J. Hodum, Scott F. Pearson
Marine Ornithology
Investigating trophic relationships can be critical for understanding relationships between marine predators and their prey. DNA analysis of feces is used increasingly as a non-invasive method to uncover seabird dietary patterns across space and time. Tufted Puffins Fratercula cirrhata are listed as Endangered in the state of Washington (WA), USA, and reduced prey availability is thought to be a key factor in the species’ decline. Recent information on Tufted Puffin diet is lacking, and present opportunities for direct diet observation are limited. We conducted a pilot study to characterize Tufted Puffin diet on Destruction Island, WA, in 2019 using DNA …
Masthead, Pacific Seabird Group
Approximating Data-Driven Combinatorial Search In The Feature Space: Pwfs, Mehmet Bugrahan Ayanoglu
Approximating Data-Driven Combinatorial Search In The Feature Space: Pwfs, Mehmet Bugrahan Ayanoglu
USF Tampa Graduate Theses and Dissertations
This dissertation presents the development and application of a novel feature selection method, Probability Weighted Feature Selection (PWFS), designed to address key challenges in machine learning involving high-dimensional, noisy, or biased datasets. It is a comprehensive exploration of feature selection strategies to enhance the performance, interpretability, and practicality of machine learning models in both engineering systems and educational data mining. PWFS introduces a structured, probabilistic approach to feature selection that adaptively weights features based on their empirical contribution to model performance. This method not only accelerates convergence to near-optimal feature subsets but also enhances flexibility for ensemble learning by encouraging …
He’S The Kid That No One Wanted: An Autoethnographic Examination Of Preschool Suspensions And Expulsions From A Mother’S Lens, Lisa M. Smith
He’S The Kid That No One Wanted: An Autoethnographic Examination Of Preschool Suspensions And Expulsions From A Mother’S Lens, Lisa M. Smith
USF Tampa Graduate Theses and Dissertations
This autoethnographic research examines the personal and professional journey of advocating against preschool suspensions and expulsions through the lens of a Black mother. Titled He’s The Kid That No One Wanted: An Autoethnographic Examination of Preschool Suspensions and Expulsions from a Mother’s Lens, " it dives into the complicated challenges faced while confronting exclusionary disciplinary practices in early childhood education. This research aims to illuminate the societal and institutional roadblocks encountered when navigating systems of power and to explore the impact of these challenges on both personal identity and professional advocacy. Using a blend of social media artifacts and memory …
Representation And Visualization Of Multivariate Sensory Time Series Data, Ismail Uysal, Alla Abdella
Representation And Visualization Of Multivariate Sensory Time Series Data, Ismail Uysal, Alla Abdella
USF Patents
In accordance with some embodiments, systems, methods, and media for processing and representing multivariate sensor information gathered from multiple sources are provided. In some embodiments, the method comprises: receiving a data sequences from respective sources; identifying a shortest data sequence that corresponds to a first interval; calculating, for pairs of data sequences, a similarity value over the first interval; forming a first segment of a representative data sequence that is a weighted combination of the data sequences over the first interval based on similarity values associated with the data sequences; truncating at least a subset of data sequences to exclude …
Terrorism And Counterterrorism In The Taliban’S Afghanistan, Jonathan Schroden
Terrorism And Counterterrorism In The Taliban’S Afghanistan, Jonathan Schroden
Journal of Strategic Security
This article focuses on terrorist groups and efforts to counter them in Afghanistan after the Taliban takeover of the country in August 2021. It begins with a brief overview of the most significant international and regional terrorist groups in the country and where these groups stood when the Taliban came to power. It then discusses the efforts of the United States, Pakistan, and the Taliban to counter (or not) those terrorist groups. Specific attention is paid to real or potential cooperation between these efforts. The chapter ends with a discussion of trendlines of the past three years and what those …
Human Security And Afghan Refugee Resettlement In The Us: A Case Study Of Camp Atterbury, Arif Akgul, Jennifer Grimes, Samuel Valentine
Human Security And Afghan Refugee Resettlement In The Us: A Case Study Of Camp Atterbury, Arif Akgul, Jennifer Grimes, Samuel Valentine
Journal of Strategic Security
This study examines the application of human security theory in the humanitarian operation at Camp Atterbury, which provided temporary resettlement for over 7,200 Afghan evacuees in the State of Indiana as part of Operation Allies Welcome (OAW). Afghan evacuees were admitted to the US under humanitarian parole and experienced a transitional period since their arrival on August 2021. Using the three pillars of human security: freedom from fear, freedom from want, and freedom to live in dignity, conceptualized by the United Nations Development Program (UNDP) and Kofi Annan, this analysis explores the security measures, essential services, and accommodations implemented to …
Vigilance Is Not Enough: A History Of United States Intelligence. By Mark M. Lowenthal. New Haven And London: Yale University Press, 2025., Edward M. Roche Ph.D., Jd
Vigilance Is Not Enough: A History Of United States Intelligence. By Mark M. Lowenthal. New Haven And London: Yale University Press, 2025., Edward M. Roche Ph.D., Jd
Journal of Strategic Security
No abstract provided.
From Uncertainty To Strategic Failure: U.S. Military Interventions And The Complexity Of Nation-Building In Afghanistan, Goddy Uwa Osimen, Oluwamurewa Newo
From Uncertainty To Strategic Failure: U.S. Military Interventions And The Complexity Of Nation-Building In Afghanistan, Goddy Uwa Osimen, Oluwamurewa Newo
Journal of Strategic Security
The American occupation of Afghanistan from 2001-2021 is widely regarded as a strategic failure, particularly after the Taliban took over the government in 2021. This work seeks to observe the strategic flaws of the 20-year occupation from the perspective of nation-building within the state. Using the theoretical lens of strategic culture and borrowing from Huntington’s discourse on the clash of civilizations, this article notes that nation-building failure in Afghanistan can be attributed to the ideological differences between the West and the Middle East. Using a descriptive qualitative approach and secondary sources such as books and peer-reviewed articles, the study employs …