Article
Ornithology
Kimberly A. A. Lato, Lesley H. H. Thorne
Summary: Anticoagulants like sodium heparin are commonly added to avian blood samples, but their effects on stable isotope studies are not well understood. This study assessed the effects of sodium heparin on stable isotope values in avian blood and found that it only significantly affected the S-34 values, with minimal impact on diet proportion estimation. Researchers should be cautious of the potential impacts of sodium heparin on stable isotope values in avian blood, especially for S-34, and consider the study scale and species characteristics.
Article
Ecology
Miguel F. Jimenez, Liba Pejchar, Sarah E. Reed, Melissa R. McHale
Summary: Urban development can lead to habitat loss and species extirpation. Urban habitat enhancement programs aim to improve the quality of habitat for native species in urban areas. Evaluating such programs is important, and a study in Fort Collins, Colorado found that certified residential open spaces had less mowed vegetation cover and more human-sensitive bird species compared to uncertified residential open spaces.
LANDSCAPE AND URBAN PLANNING
(2022)
Article
Chemistry, Applied
Ha Lan Anh, Dang Duc Nhan, Tran Minh Quynh
Summary: This study investigates whether fresh apples from the United States, New Zealand, and China sold in Vietnam's markets can be differentiated based on the stable isotopic signatures of water and carbon. The results show distinct differences in δ2H, δ18O, and δ13C values of apple samples from the three regions, with the apples from the United States being lighter in δ2H and δ18O and the apples from China being more enriched in δ13CVBDP. This method proves reliable for agricultural product control.
Article
Plant Sciences
Alexi C. Besser, Emma A. Elliott Smith, Seth D. Newsome
Summary: Analyzing isotopes of amino acids can offer more accurate estimates of energy flow and consumer trophic levels in food webs. However, the specific analysis of amino acids in terrestrial and freshwater producers still requires further study and exploration.
JOURNAL OF ECOLOGY
(2022)
Article
Mathematics, Applied
Federico Fallucca
Summary: In this note, the authors present examples of complex algebraic surfaces with canonical maps of degree 12, 13, 15, 16 and 18. These surfaces are constructed as quotients of a product of two curves of genus 10 and 19 using certain non-free actions of the group S3 x Z(3)(2). It is worth noting that there are no other examples in existing literature of surfaces with canonical map of degrees 13, 15 and 18.
ANNALI DI MATEMATICA PURA ED APPLICATA
(2023)
Article
Fisheries
Seiji Ohshimo, Taketoshi Kodama, Tohya Yasuda, Satoshi Kitajima, Toshihiro Tsuji, Hideaki Kidokoro, Hiroshige Tanaka
Summary: This study evaluated changes in carbon and nitrogen stable isotope ratios of three small pelagic forage fish species in the Sea of Japan and East China Sea over 22 years. The study found that the stable isotope ratios of these fish species can be affected by changes in baseline values, which should be taken into consideration when inferring food-web structures.
MARINE AND FRESHWATER RESEARCH
(2021)
Article
Ecology
Martina Cecchetti, Sarah L. Crowley, Cecily E. D. Goodwin, Holly Cole, Jennifer McDonald, Stuart Bearhop, Robbie A. McDonald
Summary: The predation of wildlife by domestic cats presents a threat to biodiversity conservation. Stable isotope analyses were used to determine the contributions of wild and provisioned foods to cat diets, showing that cat diets mainly consist of provided foods and with low contribution from wild animals. Cats with a Birdsbesafe collar cover exhibited a significant reduction in consumption of wild prey, particularly birds, due to effective hunting inhibition.
Article
Environmental Sciences
Camila Carvalho de Carvalho, Miriam Marmontel, Silvina Botta, Renata Emin-Lima, Alexandra Fernandes Costa, Luciana Carvalho Crema, Vera Maria Ferreira Silva, Maria Teresa Fernandez Piedade, Eduardo Resende Secchi
Summary: Threats to aquatic mammals can occur individually or together, which can have cumulative effects on populations and ecosystems. Therefore, conservation efforts must consider the complexity of factors affecting habitat use patterns, including feeding ecology. The diet of the Amazonian manatee is influenced by different environments and the availability of plant species.
AQUATIC CONSERVATION-MARINE AND FRESHWATER ECOSYSTEMS
(2022)
Article
Biochemical Research Methods
Anna Karlund, Teemu Kaariainen, Vili M. Kostamo, Tarja Kokkola, Marjukka Kolehmainen, Timo A. Lakka, Jussi Pihlajamaki, Albert Manninen
Summary: Analyzing the isotopic composition of exhaled carbon dioxide may help screen for prediabetes, but further research is needed to apply this method in Finnish individuals with prediabetes. While C-13/C-12 isotopes may assist in identifying prediabetic individuals in some cases, they are not yet reliable as a sole marker for screening prediabetes.
JOURNAL OF BREATH RESEARCH
(2021)
Article
Psychology, Educational
Jan Holtge, Linda Theron, Angelique van Rensburg, Richard G. Cowden, Kaymarlin Govender, Michael Ungar
Summary: This study examined the differences in the interactions between support systems among consecutive age groups of adolescents in Canada and South Africa. It found that while individual and contextual systems had the highest interconnectivity, the pattern of interconnectivity between individual and caregiver systems varied between the two countries. This research provides initial insights into the cross-cultural and context-dependent patterns of interconnectivity between fundamental resource systems during adolescence.
Article
Chemistry, Physical
Shoute Zhang, Junwu Chen, Ying Meng, Lei Pang, Yanbing Guo, Zhu Luo, Yarong Fang, Yahao Dong, Weiquan Cai, Tao Li
Summary: Cu-exchanged zeolites synthesized via the solid-state ion-exchange (SSIE) route exhibited excellent NH3-SCR activities and higher Cu ion-exchange levels compared to traditional methods. NH4-form substrates promoted Cu2+ ion mobility and facilitated Cu2+ occupying exchange sites, beneficial for SCR reactions. Reaction intermediates like NH4+, -NH2, and NO2- were observed on catalysts prepared from NH4-form substrates.
APPLIED SURFACE SCIENCE
(2022)
Article
Public, Environmental & Occupational Health
Gibril J. Njie, Candace Kirksey Jones, Nerline Jacques, Adewole Adetokun, James Ross, Ashlyn Owens, Linda Anton, Michelle Johns, Liping Pan
Summary: A survey on global youth tobacco use between 2012 and 2020 reveals that there was no significant decrease in smoking rates among young people, while the use of e-cigarettes increased in some areas.
PREVENTING CHRONIC DISEASE
(2023)
Article
Multidisciplinary Sciences
Mikael Fauvelle, Andrew D. Somerville
Summary: This article presents baseline isotope values for plant and animal samples collected from southern California. The data, including plant and animal samples, will be useful for future researchers conducting isotope studies.
Article
Chemistry, Inorganic & Nuclear
John M. Pleasants
Summary: Stable isotope measurements of wing tissue have been used to determine the origin of migrant monarch butterflies. This study explores the possibility of using different isotopes to identify the milkweed habitat used by monarchs. The results suggest that monarchs from cornfields can be identified based on their isotopes, which can help test the hypothesis of milkweed loss as a reason for population decline.
ISOTOPES IN ENVIRONMENTAL AND HEALTH STUDIES
(2023)
Article
Spectroscopy
Tanju Mutlu
Summary: This study examined stable isotope ratios, metal levels, and health risks associated with consuming popular fish species in Turkey. Results showed that most metal levels in the studied fish species were below national and international standards, indicating no health risks associated with their consumption.
SPECTROSCOPY LETTERS
(2021)
Article
Chemistry, Analytical
Arndt Schimmelrnann, Haiping Qi, Tyler B. Coplen, Willi A. Brand, Jon Fong, Wolfram Meier-Augenstein, Helen F. Kemp, Blaza Toman, Annika Ackermann, Sergey Assonov, Anita T. Aerts-Bijma, Ramona Brejcha, Yoshito Chikaraishi, Tamim Darwish, Martin Elsner, Matthias Gehre, Heike Geilmann, Manfred Groeing, Jean-Francois Helie, Sara Herrero-Martin, Harro A. J. Meijer, Peter E. Sauer, Alex L. Sessions, Roland A. Werner
ANALYTICAL CHEMISTRY
(2016)
Article
Geosciences, Multidisciplinary
Patrick Hohener, Zhi M. Li, Maxime Julien, Pierrick Nun, Richard J. Robins, Gerald S. Remaud
Article
Plant Sciences
M. M. Lehmann, F. Wegener, R. A. Werner, C. Werner
Article
Geosciences, Multidisciplinary
Patrick Hohener, Zhi M. Li, Maxime Julien, Pierrick Nun, Richard J. Robins, Gerald S. Remaud
Article
Chemistry, Physical
Maxime Julien, Patrick Hohener, Richard J. Robins, Julien Parinet, Gerald S. Remaud
JOURNAL OF PHYSICAL CHEMISTRY B
(2017)
Article
Plant Sciences
Richard J. Robins, Katarzyna M. Romek, Gerald S. Remaud, Piotr Paneth
PHYTOCHEMISTRY LETTERS
(2017)
Article
Plant Sciences
Marc-Andre Cormier, Roland A. Werner, Peter E. Sauer, Darren R. Grocke, Markus C. Leuenberger, Thomas Wieloch, Jurgen Schleucher, Ansgar Kahmen
Article
Chemistry, Analytical
Maxime Julien, Alexis Gilbert, Keita Yamada, Richard J. Robins, Patrick Hohener, Naohiro Yoshida, Gerald S. Remaud
Article
Ecology
M. -A. Cormier, R. A. Werner, M. C. Leuenberger, A. Kahmen
Article
Plant Sciences
Marco M. Lehmann, Shiva Ghiasi, Gavin M. George, Marc-Andre Cormier, Arthur Gessler, Matthias Saurer, Roland A. Werner
JOURNAL OF EXPERIMENTAL BOTANY
(2019)
Article
Biochemical Research Methods
Neringa Mannerheim, Roland A. Werner, Nina Buchmann
RAPID COMMUNICATIONS IN MASS SPECTROMETRY
(2019)
Article
Ecology
Madalin Parepa, Ansgar Kahmen, Roland A. Werner, Markus Fischer, Oliver Bossdorf
Article
Biochemical Research Methods
Marco M. Lehmann, Melanie Egli, Nadine Brinkmann, Roland A. Werner, Matthias Saurer, Ansgar Kahmen
RAPID COMMUNICATIONS IN MASS SPECTROMETRY
(2020)
Article
Chemistry, Inorganic & Nuclear
Shiva Ghiasi, Marco M. Lehmann, Franz-W Badeck, Jaleh Ghashghaie, Robert Haensch, Rieke Meinen, Sebastian Streb, Meike Huedig, Michael E. Ruckle, Daniel A. Carrera, Rolf T. W. Siegwolf, Nina Buchmann, Roland A. Werner
Summary: The decrease in NO3- concentration leads to a decrease in plant net assimilation rate, organic acids, and starch, while increasing respiration rate, intercellular CO2 concentration, soluble sugars, and amino acids.
ISOTOPES IN ENVIRONMENTAL AND HEALTH STUDIES
(2021)
Article
Ecology
Marijn Van de Broek, Shiva Ghiasi, Charlotte Decock, Andreas Hund, Samuel Abiven, Cordula Friedli, Roland A. Werner, Johan Six