Article
Environmental Sciences
Johanna J. Geeson, Mark A. Hindell, Alistair J. Hobday, Cassie N. Speakman, John P. Y. Arnould
Summary: The Australian fur seal population is recovering but experiencing changing nutritional conditions, which may continue to decline under predicted climate change conditions.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Multidisciplinary Sciences
Johanna J. Geeson, Alistair J. Hobday, Cassie N. Speakman, John P. Y. Arnould
Summary: Understanding the breeding biology of a species is important for predicting its response to global change. This study investigated the breeding phenology and pup production of the Australian fur seal on Kanowna Island and found correlations with winter and summer winds and climate indices.
ROYAL SOCIETY OPEN SCIENCE
(2022)
Article
Biology
Rebecca Nagel, Claire Stainfield, Cameron Fox-Clarke, Camille Toscani, Jaume Forcada, Joseph I. Hoffman
Summary: Researchers studied the potential Allee effects in an Antarctic fur seal population by comparing two adjacent breeding colonies of contrasting density. They found that at low density, pup mortality was higher, mainly due to predation. These findings shed light on Allee effects in wild populations and the emerging role of predators in the decline of a pinniped species.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2021)
Article
Environmental Sciences
Scott A. Lindsay, Charles G. B. Caraguel, Ryan O'Handley, Jan Slapeta, Rachael Gray
Summary: This study reports on the exposure of the Australian sea lion to Toxoplasma gondii, a protozoon. The results showed that adult female sea lions had a seroprevalence of 30.4%, while no antibodies were detected in the surveyed pups. The study suggests that the infection may be associated with food intake. These findings have implications for parasitic disease risk in wildlife inhabiting Australia's islands and for the feral cat control program.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Fisheries
Derek B. de Amorim, Paula R. Ribeiro, Marcele B. Bandinelli, Joanna V. Z. Echenique, Matheus V. Bianchi, Paula R. Almeida, Fernando R. Spilki, Leticia F. Baumbach, Luciana Sonne
Summary: This study reports a rare case of B-cell small lymphocytic lymphoma (B-SLL) found in a South American sea lion. The main pathological features of this case included poor body condition, generalized lymphadenomegaly, severe and diffuse splenomegaly, and multiple nodules in the kidneys and small intestine. Histological examination showed that these organs were partially or totally replaced by neoplastic lymphocytes with varying sizes and shapes, and a low mitotic count. These cells were immunolabeled positive for CD79 alpha and CD20, and negative for CD3.
DISEASES OF AQUATIC ORGANISMS
(2023)
Article
Environmental Sciences
Emily S. S. Sperou, Daniel E. E. Crocker, Renato Borras-Chavez, Daniel P. P. Costa, Michael E. E. Goebel, Shane B. B. Kanatous, Douglas J. J. Krause, Stephen J. J. Trumble, Sarah S. S. Kienle
Summary: Researchers found that leopard seals in Antarctica have remarkably high cortisol concentrations, which are influenced by factors such as sex, body mass, and diet. Compared to other Arctic animals, leopard seals exhibit higher levels of cortisol, suggesting a specialized adaptation in this Antarctic-dwelling species. These findings provide valuable insights into understanding the physiological changes of leopard seals in the rapidly changing Antarctic environment.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Biodiversity Conservation
Jaume Forcada, Joseph I. Hoffman, Olivier Gimenez, Iain J. Staniland, Pete Bucktrout, Andrew G. Wood
Summary: This study focuses on the recovery trajectory of the Antarctic fur seal and highlights the reasons and factors influencing its population growth, discussing the impacts of environmental change and anthropogenic pressures on this species.
GLOBAL CHANGE BIOLOGY
(2023)
Article
Environmental Sciences
Brett R. Gardner, John Stenos, Jasmin Hufschmid, John P. Y. Arnould, Rebecca R. McIntosh, Mythili Tadepalli, Anita Tolpinrud, Marc Marenda, Michael Lynch, Andrew Stent
Summary: The Australian fur seal has been experiencing a slower population recovery than expected, with a high rate of third trimester abortions. The cause of this phenomenon is currently unknown. This study found evidence of Coxiella burnetii, a well-known cause of abortion, in Australian fur seals. This is the first description of this pathogen in a marine mammal from the southern hemisphere and highlights the need for further research on its potential risks to fur seals and other marine mammals.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Evolutionary Biology
David L. J. Vendrami, Toni Gossmann, Nayden Chakarov, Anneke J. Paijmans, Vivienne Litzke, Adam Eyre-Walker, Jaume Forcada, Joseph Hoffman
Summary: Nuclear copies of mitochondrial genes (numts) are common in vertebrate genomes. This study characterizes 25 numts in the Antarctic fur seal genome and identifies two recent numts that have multiple substitutions due to noncanonical insertions.
GENOME BIOLOGY AND EVOLUTION
(2022)
Article
Ecology
Rebecca Nagel, Sylvia Kaiser, Claire Stainfield, Camille Toscani, Cameron Fox-Clarke, Anneke J. Paijmans, Camila Costa Castro, David L. J. Vendrami, Jaume Forcada, Joseph Hoffman
Summary: Individuals have unique ways of interacting with and responding to the environment, which is reflected in the individualized response of the hypothalamic-pituitary-adrenal axis. The study found that baseline cortisol has low heritability but high within-individual repeatability and among-individual variability. Factors such as sex, weight, day, season, and birth colony contribute to the individual variation in baseline cortisol.
ECOLOGY AND EVOLUTION
(2022)
Article
Ecology
Demelza Wall, Sam Thalmann, Simon Wotherspoon, Mary-Anne Lea
Summary: This study compared the body condition of Australian fur seal pups at two breeding colonies, The Needles and Tenth Island, in different stages of establishment. The pups at The Needles had better body condition than those at Tenth Island. The findings highlight the importance of south-west Tasmania as a breeding and foraging site for Australian fur seals.
Article
Immunology
Valerie Johnson, A. Russell Moore, Rachel Conway, Tonya Zeppelin, Tom Gelatt, Colleen Duncan
Summary: The decline of northern fur seals on the Pribilof Islands is likely due to a combination of factors, including environmental changes and exposure to pathogens and pollutants. Evaluation of inflammatory markers, antioxidant levels, and hematologic and biochemical profiles can provide valuable information about the health of the population.
VETERINARY IMMUNOLOGY AND IMMUNOPATHOLOGY
(2021)
Article
Marine & Freshwater Biology
Mathilde Martin, Jessica Stow, Tess Gridley, Simon Elwen, Isabelle Charrier
Summary: This study investigated the variation in vocalizations of Cape fur seal females, males, and pups across different geographic locations. The results showed that there was little micro-geographical variation in vocalizations among South African sites, but significant differences were found between South Africa and Namibia. These differences may be influenced by both external and internal factors, and the impact of these factors may vary for different genders and age groups of fur seals.
MARINE MAMMAL SCIENCE
(2023)
Article
Environmental Sciences
Mickie R. Edwards, Susana Cardenas-Alayza, Michael J. Adkesson, Mya Daniels-Abdulahad, Amy C. Hirons
Summary: Peru's coastal waters experience significant environmental fluctuations due to El Nino-La Nina-Southern Oscillation events, impacting the food web and diet of Peruvian fur seals. Stable isotope ratios are used to infer primary production and dietary variations, with correlations between N-15 values and ENSO conditions. The study suggests that ENSO conditions influence resource availability, potentially affecting pinniped foraging behavior and food web complexity.
FRONTIERS IN MARINE SCIENCE
(2021)
Article
Engineering, Environmental
Naeun Kim, Jungman Jo, Jinkyung Lee, Gwan-Ho Lee, Byung-Yong Yu, Heesoo Pyo, Jeongae Lee, Jaeyoung Choi
Summary: In this study, an advanced environmental forensic analysis was conducted to investigate the microbial communities and breakdown products of phenol, carbon stable isotopes, and radioactive isotopes in phenol-contaminated soil. The results showed that higher 813C levels and lower 14C/12C ratios were observed in phenol-contaminated soil, which served as indicators of phenol-spill accidents after natural attenuation. Additionally, the presence of specific phenol-breakdown products and soil bacteria, such as Nocardioides, Faecalibacterium, and Bacteroides, identified through 16s rRNA gene analysis, were indicators of phenol-leakage accidents. Therefore, this proposed environmental forensic strategy is a valuable tool for locating previous chemical accidents and estimating the ecological impact after the natural attenuation of contaminated soils.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Ecology
Alex Bush, Renee Catullo, Karel Mokany, Tom Harwood, Andrew J. Hoskins, Simon Ferrier
GLOBAL ECOLOGY AND BIOGEOGRAPHY
(2019)
Article
Biodiversity Conservation
Moreno Di Marco, Tom D. Harwood, Andrew J. Hoskins, Chris Ware, Samantha L. L. Hill, Simon Ferrier
GLOBAL CHANGE BIOLOGY
(2019)
Editorial Material
Multidisciplinary Sciences
Moreno Di Marco, Michelle L. Baker, Peter Daszak, Paul De Barro, Evan A. Eskew, Cecile M. Godde, Tom D. Harwood, Mario Herrero, Andrew J. Hoskins, Erica Johnson, William B. Karesh, Catherine Machalaba, Javier Navarro Garcia, Dean Paini, Rebecca Pirzl, Mark Stafford Smith, Carlos Zambrana-Torrelio, Simon Ferrier
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2020)
Article
Multidisciplinary Sciences
Karel Mokany, Simon Ferrier, Thomas D. Harwood, Chris Ware, Moreno Di Marco, Hedley S. Grantham, Oscar Venter, Andrew J. Hoskins, James E. M. Watson
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2020)
Article
Computer Science, Interdisciplinary Applications
Andrew J. Hoskins, Thomas D. Harwood, Chris Ware, Kristen J. Williams, Justin J. Perry, Noboru Ota, Jim R. Croft, David K. Yeates, Walter Jetz, Maciej Golebiewski, Andy Purvis, Tim Robertson, Simon Ferrier
ENVIRONMENTAL MODELLING & SOFTWARE
(2020)
Article
Biodiversity Conservation
Simon Ferrier, Thomas D. Harwood, Chris Ware, Andrew J. Hoskins
ECOLOGICAL INDICATORS
(2020)
Article
Multidisciplinary Sciences
David Leclere, Michael Obersteiner, Mike Barrett, Stuart H. M. Butchart, Abhishek Chaudhary, Adriana De Palma, Fabrice A. J. DeClerck, Moreno Di Marco, Jonathan C. Doelman, Martina Duerauer, Robin Freeman, Michael Harfoot, Tomoko Hasegawa, Stefanie Hellweg, Jelle P. Hilbers, Samantha L. L. Hill, Florian Humpenoeder, Nancy Jennings, Tamas Krisztin, Georgina M. Mace, Haruka Ohashi, Alexander Popp, Andy Purvis, Aafke M. Schipper, Andrzej Tabeau, Hugo Valin, Hans van Meijl, Willem-Jan Van Zeist, Piero Visconti, Rob Alkemade, Rosamunde Almond, Gill Bunting, Neil D. Burgess, Sarah E. Cornell, Fulvio Di Fulvio, Simon Ferrier, Steffen Fritz, Shinichiro Fujimori, Monique Grooten, Thomas Harwood, Petr Havlik, Mario Herrero, Andrew J. Hoskins, Martin Jung, Tom Kram, Hermann Lotze-Campen, Tetsuya Matsui, Carsten Meyer, Deon Nel, Tim Newbold, Guido Schmidt-Traub, Elke Stehfest, Bernardo B. N. Strassburg, Detlef P. van Vuuren, Chris Ware, James E. M. Watson, Wenchao Wu, Lucy Young
Article
Multidisciplinary Sciences
Cassie N. Speakman, Andrew J. Hoskins, Mark A. Hindell, Daniel P. Costa, Jason R. Hartog, Alistair J. Hobday, John P. Y. Arnould
SCIENTIFIC REPORTS
(2020)
Article
Ecology
Cassie N. Speakman, Sebastian T. Lloyd, Elodie C. M. Camprasse, Andrew J. Hoskins, Mark A. Hindell, Daniel P. Costa, John P. Y. Arnould
Summary: Variation in foraging strategies can exist within populations, with individual consistency playing a key role in benthic diving activities. Consistency in foraging behavior contributes to individual success and efficiency during feeding activities.
ECOLOGY AND EVOLUTION
(2021)
Article
Multidisciplinary Sciences
Jessica-Anne Blakeway, John P. Y. Arnould, Andrew J. Hoskins, Patricia Martin-Cabrera, Grace J. Sutton, Luis A. Huckstadt, Daniel P. Costa, Diego Paez-Rosas, Stella Villegas-Amtmann
Summary: The study investigated foraging efficiency of GSLs, finding that benthic dives were more profitable than pelagic dives, and identified three different foraging trip strategies.
Article
Environmental Sciences
David R. Thompson, Kimberly T. Goetz, Paul M. Sagar, Leigh G. Torres, Caitlin E. Kroeger, Lisa A. Sztukowski, Rachael A. Orben, Andrew J. Hoskins, Richard A. Phillips
Summary: The study used tracking devices to investigate the year-round distribution of Campbell albatross, finding their utilization of cool waters during the breeding season and movement to warmer waters during the non-breeding period. One individual made a circumnavigation of the southern oceans after a failed breeding attempt in 2009. The overlap with fishing activity fluctuated throughout the study period.
AQUATIC CONSERVATION-MARINE AND FRESHWATER ECOSYSTEMS
(2021)
Article
Biodiversity Conservation
Corey J. A. Bradshaw, Andrew J. Hoskins, Phillip J. Haubrock, Ross N. Cuthbert, Christophe Diagne, Boris Leroy, Lindell Andrews, Brad Page, Phill Cassey, Andy W. Sheppard, Franck Courchamp
Summary: The legacy of deliberate and accidental introductions of invasive alien species to Australia has resulted in significant economic costs, with at least $298.58 billion (2017 value) spent or lost since the 1960s. Costs have been increasing at an average rate of 1.8-6.3 times per decade, with plants being the primary contributors to the total costs. Different regions in Australia face major costs from different species, but most losses are caused by one to three species.
Article
Multidisciplinary Sciences
Cassie N. Speakman, Andrew J. Hoskins, Mark A. Hindell, Daniel P. Costa, Jason R. Hartog, Alistair J. Hobday, John P. Y. Arnould
Summary: The study found that Australian fur seals foraging in benthic habitats are influenced by local environmental conditions and large-scale climate indices, particularly during winters in southeastern Australia, showing sensitivity to climate conditions such as the El Nino Southern Oscillation.
ROYAL SOCIETY OPEN SCIENCE
(2021)
Article
Virology
Morgan Furlong, Andrew M. Adamu, Andrew Hoskins, Tanya L. Russell, Bruce Gummow, Maryam Golchin, Roslyn I. Hickson, Paul F. Horwood
Summary: Mathematical and geospatial mapping techniques were used to estimate the risk of Japanese encephalitis virus transmission in coastal and inland regions of Australia. Increased surveillance of waterbirds, feral pigs, and mosquito populations is recommended in areas with human and domestic pig populations.
Article
Remote Sensing
Blake M. Allan, Daniel Ierodiaconou, Andrew J. Hoskins, John P. Y. Arnould