Article
Environmental Sciences
Gyanesh Kumar Singh, Pradhi Rajeev, Debajyoti Paul, Tarun Gupta
Summary: Measurements of nitrogenous species in winter PM2.5 aerosol samples were conducted in a heavily polluted area in Kanpur, north India. Results showed NH₄⁺_N and WSON dominated WSTN, with stagnant atmospheric conditions enhancing concentrations of ionic species. Isotopic analysis indicated likely sources of nitrogen emissions in the area to be agriculture activities and waste generation.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Sawaeng Kawichai, Tippawan Prapamontol, Fang Cao, Wenhuai Song, Yanlin Zhang
Summary: This study investigates the sources of PM2.5 in Chiang Mai city using stable carbon and nitrogen isotopes, and confirms that biomass burning is the main contributor, with C-3 and C-4 plants contributing 74% and 26% respectively.
Article
Engineering, Environmental
Dezhang Ren, Ce Zhao, Nahui Zhang, Koyo Norinaga, Xu Zeng, Zhibao Huo
Summary: This study developed a fast and easy handled batch air diffusion method to prepare an air-stable skeletal Co catalyst, which was successfully applied in the hydrogenation of ethyl levulinate.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Fisheries
Matthew R. D. Cobain, Rona A. R. McGill, Clive N. Trueman
Summary: Seasonal variations in the availability of resources can affect the structure of food webs. This study used stable isotope analysis to investigate the temporal dynamics of a fish community in a temperate estuary. The results showed limited seasonal variation in sulphur isotope values, indicating little change in the consumption of different resources by the fish community. However, carbon and nitrogen isotope values exhibited seasonality, reflecting changes in phytoplankton biomass and nitrogen sources. Isotope shifts in fish muscle occurred rapidly during periods of high phytoplankton production. This study emphasizes the importance of considering temporal variability in stable isotope-based studies.
JOURNAL OF FISH BIOLOGY
(2022)
Article
Biotechnology & Applied Microbiology
Takashi Onodera, Yasuyuki Takemura, Kengo Kubota, Rina Kato, Tsutomu Okubo, Gen Kanaya, Kazuaki Syutsubo, Shigeki Uemura
Summary: This study evaluated the characteristics of sludge in biological wastewater treatment systems using various methods, revealing succession and trophic transfer within bacterial and eukaryotic communities. Isotopic analysis showed a significant increase in nitrogen stable isotope ratio over time in sponge units, indicating changes in the biological processes occurring during wastewater treatment.
BIOCHEMICAL ENGINEERING JOURNAL
(2021)
Article
Nuclear Science & Technology
Sota Tanaka, Hotaru Kakinuma, Taro Adati, Mariko Atarashi-Andoh, Jun Koarashi
Summary: Understanding the transfer pathways of Cs-137 to spiders, as generalist predators in forest ecosystems, is beneficial for assessing long-term recycling of Cs-137 through the food chain. Results showed Cs-137 was detected in all spiders at different habitats, indicating its bioavailability, while differences in carbon and nitrogen isotope ratios suggested varying food resources for spiders between locations. Further research is needed to clarify the transfer pathways due to high variability observed.
JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY
(2021)
Article
Zoology
Jamile Bubadue, Nilton Caceres, Geruza Melo, Jonas Sponchiado, Thais Battistella, Jason Newton, Carlo Meloro
Summary: The study compared stable isotopic ratios of Didelphidae and Sigmodontinae in four Brazilian biomes, revealing different resource partitioning strategies between the two clades. In the Atlantic Forest, the niche occupation by Didelphidae was completely enclosed within the trophic niche of Sigmodontinae, while in the Cerrado, both clades showed a broader trophic niche.
JOURNAL OF MAMMALOGY
(2021)
Article
Ecology
R. E. Austin, F. De Pascalis, S. C. Votier, J. Haakonsson, J. P. Y. Arnould, G. Ebanks-Petrie, J. Newton, J. Harvey, J. A. Green
Summary: The study found that two neighboring seabird species, the red-footed booby and brown booby, used notably different foraging strategies, with marked spatial segregation but limited evidence of interspecific dietary partitioning. The larger-bodied brown booby foraged within neritic waters, while the smaller-bodied red-footed booby traveled further offshore.
Article
Multidisciplinary Sciences
Sean P. Doherty, Matthew J. Collins, Alison J. T. Harris, Ainara Sistiaga, Jason Newton, Michelle M. Alexander
Summary: We present a modern baseline for interpreting archaeological isotopic data by analyzing the isotopic discrimination between paired skin and bone collagen from animals of known life history. Our findings suggest that there is a consistent difference in the isotopic composition of skin collagen and bone collagen, which may reflect variations in the routing of dietary protein and lipids between these tissues.
ROYAL SOCIETY OPEN SCIENCE
(2022)
Article
Ecology
Allan A. Baino, Grant G. J. C. Hopcraft, Corinne J. Kendall, Jason Newton, Abdelkader Behdenna, Linus K. Munishi
Summary: This study used stable isotopes to estimate the diet composition of Gyps vultures, finding that their diet mainly consists of grazing herbivores. The use of stable isotopes provides an efficient and accurate method for determining the diet of raptors, and these findings are important for understanding the ecology and conservation of Gyps vultures.
ECOLOGY AND EVOLUTION
(2022)
Editorial Material
Multidisciplinary Sciences
T. J. Clark, Jason Newton, Ewan D. Wakefield
Summary: Stable isotope analysis of ancient Falkland Islands wolves reveals their high trophic position in the marine food chain. The researchers suggest a mutualistic relationship with the Yaghan people. However, despite human persecution during the European era, most D. australis had similar isotopic signatures, which neither support nor refute the hypothesis of human-mediated introduction of D. australis to the Falklands.
Article
Multidisciplinary Sciences
Arthur Newbury, Beth Dawson, Uli Kl Umper, Elze Hesse, Meaghan Castledine, Colin Fontaine, Angus Buckling, Dirk Sanders
Summary: The spread of antimicrobial resistance genes in microbial communities is associated with the structure of bacteria-plasmid networks. Mutualistic bacteria-plasmid networks, where antibiotics are present and plasmids carry resistance genes, are more generalized than antagonistic interactions. The fitness benefits of harboring a mutualistic symbiont promote its spread to other species. In addition, coevolution and stability play a role in explaining the link between mutualistic and antagonistic interactions and network structure.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Environmental Sciences
Shaun T. Lancaster, Gabriela Peniche, Ali Alzahrani, Magdalena Blanz, Jason Newton, Mark A. Taggart, Warren T. Corns, Eva M. Krupp, Joerg Feldmann
Summary: Understanding the uptake and fate of mercury compounds in biota is crucial for understanding the global mercury cycling and its transfer through food chains. This study analyzed mercury concentrations in Scottish birds of prey and found the presence of mercury selenide nanoparticles in the liver of some golden eagles, which has not been observed in terrestrial birds of prey before. The study suggests that these nanoparticles may be formed as a detoxification mechanism or accumulated through foraging on stranded cetaceans or seabirds.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Ecology
Boris Espinasse, Anthony Sturbois, Sunnje L. Basedow, Pierre Helaouet, David G. Johns, Jason Newton, Clive N. Trueman
Summary: The limited ecological data hinder our understanding and prediction of the impact of human activities on pelagic marine ecosystems. Isoscapes, spatial models of stable isotope ratios, have been used to study biogeochemical processes and ecological responses. In this study, isoscape models were developed for the North Atlantic Ocean using archived samples from plankton surveys. These models provide valuable insights into marine predator ecology and can improve conservation efforts in the future.
FRONTIERS IN ECOLOGY AND EVOLUTION
(2022)
Article
Ecology
Joshua T. Bauld, Katharine A. Abernethy, Jason Newton, David Lehmann, Isabel L. Jones, Luc F. Bussiere
Summary: Classic evolutionary theory suggests that sexual dimorphism evolves primarily through sexual and fecundity selection. However, recent research indicates that resource competition may also contribute to the evolution of sexual dimorphism through ecological character displacement between sexes. This study conducted a meta-analysis to examine the association between isotopic divergence and body size dimorphism, and found modest but significant positive associations, particularly when there was a greater ecological opportunity for dietary divergence between sexes.
ECOLOGY AND EVOLUTION
(2022)
Article
Marine & Freshwater Biology
Amanda Kuepfer, Paulo Catry, Stuart Bearhop, Richard B. Sherley, Olivia Bell, Jason Newton, Paul Brickle, Alexander Arkhipkin, Stephen C. Votier
Summary: Effective marine ecosystem monitoring is critical for sustainable management. Monitoring seabird diets can provide important information on ecosystem health and seabird-fishery interactions. This study combines stomach content analysis (SCA) and stable isotope analysis (SIA) to examine the diet of black-browed albatross chicks, with a focus on fishery discard consumption.
Article
Biochemical Research Methods
Kelly Atkins, Stuart Bearhop, Thomas W. W. Bodey, W. James Grecian, Keith Hamer, Jorge M. M. Pereira, Hannah Meinertzhagen, Chris Mitchell, Greg Morgan, Lisa Morgan, Jason Newton, Richard B. B. Sherley, Stephen C. C. Votier
Summary: Combining precision satellite-tracking with blood sampling, this study explores the potential of using seabird geolocators and feather sampling to validate large-scale isotopic patterns. By matching winter-grown feathers with the non-breeding location of tracked birds, the study reveals latitudinal gradients in carbon and nitrogen isotopes in neritic waters. Furthermore, the isotopic patterns are best explained by sea surface temperature, and similar gradients are found in fish muscle samples collected from local ports.
RAPID COMMUNICATIONS IN MASS SPECTROMETRY
(2023)
Article
Ecology
Kevin Tougeron, Dirk Sanders
Summary: Artificial light at night (ALAN) and night-time warming (NW) together pose a threat to the nighttime environment, behavior, and physiology of organisms. The impacts on fitness and the nocturnal niche have cascading effects on ecosystem structure and function. Understanding the interaction of both stressors is crucial for ecological predictions.
TRENDS IN ECOLOGY & EVOLUTION
(2023)
Article
Environmental Sciences
Daniel Niepsch, Leon J. J. Clarke, Jason Newton, Konstantinos Tzoulas, Gina Cavan
Summary: Air pollution and poor air quality have a global impact on human health, leading to respiratory and cardiovascular diseases and damage to organ systems. Lichens are commonly used as biomonitors to assess pollution and monitor air quality. This study used a high-spatial resolution lichen biomonitoring approach to investigate the finer spatial variability of air quality in Manchester, UK, and identify pollution sources. Lichen elemental contents and stable-isotope-ratio signatures can be used to identify areas of poor air quality not covered by automated air quality monitoring stations.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Multidisciplinary Sciences
Sean P. Doherty, Michelle M. Alexander, Stuart Henderson, Jason Newton, Jonathan Finch, Matthew J. Collins
Summary: The character and timing of an 'Agricultural Revolution' in British agriculture between the sixteenth and nineteenth century remains a subject of debate. To address this, researchers conducted stable isotope analysis on 658 legal documents written on sheepskin parchment, providing a high temporal resolution analysis of changing agricultural practices and episodes of disease. The results suggest that if an 'Agricultural Revolution' occurred, it took place from the mid-nineteenth century, after the Napoleonic Wars.
SCIENTIFIC REPORTS
(2023)
Article
Archaeology
Sean Doherty, Michelle M. Alexander, Jiri Vnoucek, Jason Newton, Matthew J. Collins
Summary: This study examines the impact of structural and chemical modifications during parchment production on the delta C-13 and delta N-15 values in skin, providing insights for isotopic analysis of parchment in paleodietary and paleoenvironmental studies for the historic period. Additionally, it establishes the acceptable C:N ratios in deamidated collagenous tissues.
SCIENCE AND TECHNOLOGY OF ARCHAEOLOGICAL RESEARCH
(2021)