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  1. Variations in the Stable Carbon Isotopic Composition of Soil Organic Matter in Mountain Depressions of the Cis-Baikal Region

    Abstract

    Depth-profile and spatial variations of the stable carbon isotopic composition of soil organic matter is analyzed to identify the main...

    V. A. Golubtsov, A. A. Cherkashina, ... S. M. Turchinskaya in Contemporary Problems of Ecology
    Article 05 December 2023
  2. Fatty acid isotopic composition in Atlantic pollock is not influenced by environmentally relevant dietary fat concentrations

    The application of fatty acid (FA) isotopic analysis has great potential in elucidating food web structure, but it has not experienced the same...

    Suzanne M. Budge, Kathryn Townsend, ... Santosh P. Lall in Oecologia
    Article Open access 30 June 2023
  3. Controls on the Carbon Isotopic Compositions of Lipids in Marine Environments

    Organic carbon isotopes have long been used to study modern and ancient biogeochemical processes. Controls on the isotopic composition of organic...
    Richard D. Pancost, Mark Pagani in Marine Organic Matter: Biomarkers, Isotopes and DNA
    Chapter
  4. The Use of Isotopic Differences of Carbon Fractions of Biomass in Plants to Study Transport Flows and Source–Sink Relations under Different Light Conditions

    Abstract

    It is shown that the differences water-soluble and water-insoluble fractions of plant leaf biomass, as well as phloem, are evolutionarily...

    A. A. Ivlev, V. A. Litvinsky, ... I. G. Tarakanov in Biology Bulletin
    Article 15 July 2024
  5. Spatial distribution and stable isotopic composition of invertebrates uncover differences between habitats on the glacier surface in the Alps

    Glacier surfaces are the most biologically productive parts of glaciers with a variety of organisms and habitats. However, distinctiveness of...

    Tereza Novotná Jaroměřská, Roberto Ambrosini, ... Krzysztof Zawierucha in Limnology
    Article Open access 09 March 2023
  6. Isotopic Tracers of the Marine Nitrogen Cycle: Present and Past

    The oceanic nitrogen cycle consists of a web of microbially mediated transformations driven in part by the large range in possible nitrogen...
    Chapter
  7. Tree-ring isotopic composition reveals intraspecific variation in water use efficiency of Pinus pinaster Ait. provenances grown in common gardens

    Key message

    The physiological responses expressed by variation in carbon and oxygen stable isotopes and iWUE in five provenances of maritime pine...

    Serena Antonucci, John Marshall, ... Roberto Tognetti in Trees
    Article Open access 31 October 2023
  8. Ontogenetic variation in isotopic niche positions of aquatic consumers in boreal lakes

    We used an extensive multispecies dataset to examine how C and N stable isotope ratios (δ 13 C and δ 15 N) of aquatic consumers varied with body size in...

    T. A. Johnston, P. A. Cott, ... J. M. Gunn in Aquatic Sciences
    Article 06 July 2024
  9. Human habitat modification, not apex scavenger decline, drives isotopic niche variation in a carnivore community

    Top carnivores can influence the structure of ecological communities, primarily through competition and predation; however, communities are also...

    Olivia Bell, Menna E. Jones, ... Robbie A. McDonald in Oecologia
    Article Open access 15 April 2024
  10. Isotopic niche partitioning in a multi-species assemblage

    Multi-species assemblages can help identify key resources in their habitat by evaluating how they are partitioning their resources. Here we used the...

    Carson L. Arends, Hannah B. Vander Zanden, Margaret M. Lamont in Marine Biology
    Article 09 November 2023
  11. Disentangling Diel Variations in the Carbon Isotopic Composition of Soil CO2 Efflux: Insights from a Multi-chamber System and a Non-Steady-State Model

    Soil carbon dioxide (CO 2 ) efflux ( F s ) and its carbon isotopic composition ( δ Fs ) based on the chamber methods are widely used to represent soil...

    Changhua Chen, Jie Wei, ... Xuefa Wen in Journal of Soil Science and Plant Nutrition
    Article 20 May 2022
  12. The decadal variability of elemental, isotopic, and biochemical compositions of coastal Mediterranean zooplankton responds to environmental changes

    The functioning of Mediterranean coastal waters is deeply affected not only by global environmental changes (e.g., global warming, climate change)...

    Théo Garcia, François Carlotti, ... Daniela Bănaru in Marine Biology
    Article 25 April 2024
  13. Isotopic Variability in Bone Collagen of Short-Tailed Albatrosses (Phoebastria albatrus) in the Bering Sea Area during the Holocene

    The short-tailed albatross ( Phoebastria albatrus ) is a rare bird species today, numbers of which declined significantly in the Holocene due to human...

    O. A. Krylovich, S. V. Samsonov, ... A. B. Savinetsky in Biology Bulletin
    Article 21 May 2024
  14. Plant Competition Across Topographic Gradients in Neotropical Cerrado Savannas: An Isotopic Approach

    The Cerrado is the second most extensive biome in South America, encompassing a series of plant physiognomies, which normally form gradients of tree...
    Davi R. Rossatto, Augusto C. Franco in Neotropical Gradients and Their Analysis
    Chapter 2023
  15. Isotopic evidence of high reliance on plant food among Later Stone Age hunter-gatherers at Taforalt, Morocco

    The transition from hunting-gathering to agriculture stands as one of the most important dietary revolutions in human history. Yet, due to a scarcity...

    Zineb Moubtahij, Jeremy McCormack, ... Klervia Jaouen in Nature Ecology & Evolution
    Article Open access 29 April 2024
  16. Isotopic diversity and niche patterns reveal contrasting resource use among co-occurring non-native fishes within a flow-altered African river system

    Classic and contemporary trophic ecology-based studies have shown that most non-native freshwater fish species (NNS) that integrate into novel...

    Pule P. Mpopetsi, Wilbert T. Kadye in Biological Invasions
    Article Open access 10 April 2024
  17. Intra- and inter-individual changes in little penguin diving and isotopic composition over the breeding season

    Seabirds allocate different amounts of energy to reproduction throughout the breeding season, depending on the trade-off between their own needs and...

    Françoise Amélineau, Claire Saraux, ... André Chiaradia in Marine Biology
    Article 05 April 2021
  18. What a sucking louse can tell us: the use of the seal lice (Lepidophthirus macrorhini) from the southern elephant seal (Mirounga leonina) in isotopic analysis of hosts

    The southern elephant seal, Mirounga leonina , is one of the top predators inhabiting the Southern Ocean. Foraging at sea represents 80% of their...

    Elena Beatriz Eder, María Soledad Leonardi, Florencia Anabella Soto in Polar Biology
    Article 11 March 2023
  19. Comparison of resource use by invasive Black Carp and native fishes using isotopic niche analysis reveals spatial variation in potential competition

    Invasive Black Carp ( Mylopharyngodon piceus ) pose a dual threat to North American freshwater ecosystems through consumption of threatened and...

    Hudman S. Evans Jr., Alison A. Coulter, ... Gregory W. Whitledge in Biological Invasions
    Article 24 March 2023
  20. The Influence of Wavelengths of Different Ranges of Photosynthetically Active Radiation on the Carbon Isotope Composition of Plant Biomass and Its Fractions (Using the Lettuce (Lactuca sativa L.) Cultivar Aficion as an Example)

    Abstract

    The influence of incident wavelengths of four ranges—short-wave red (623–641 nm), long-wave red (646–667 nm), far red (727–751 nm), and blue...

    A. A. Ivlev, D. A. Tovstyko, ... I. G. Tarakanov in Biology Bulletin
    Article 25 September 2023
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