Results 11 to 20 of about 94,355 (261)

Stable isotope analysis (δ13C and δ15N) of soil nematodes from four feeding groups [PDF]

open access: yesPeerJ, 2016
Soil nematode feeding groups are a long-established trophic categorisation largely based on morphology and are used in ecological indices to monitor and analyse the biological state of soils.
Carol Melody   +3 more
doaj   +2 more sources

Isotopic Fingerprinting: A Promising Tool for Coffee Authenticity Checks

open access: yesProceedings, 2023
Almost every physical or chemical process in nature favors certain light stable isotopes over others, and thereby leaves an isotopic “fingerprint” on the substances involved.
Johannes Wintel   +4 more
doaj   +1 more source

Intracellular carbon storage by microorganisms is an overlooked pathway of biomass growth

open access: yesNature Communications, 2023
The concept of biomass growth is central to microbial carbon (C) cycling and ecosystem nutrient turnover. Microbial biomass is usually assumed to grow by cellular replication, despite microorganisms’ capacity to increase biomass by synthesizing storage ...
Kyle Mason-Jones   +4 more
doaj   +1 more source

Evidence of considerable C and N transfer from peas to cereals via direct root contact but not via mycorrhiza

open access: yesScientific Reports, 2021
Intercropping of legumes and cereals is an important management method for improving yield stability, especially in organic farming systems. However, knowledge is restricted on the relevance of different nutrient transfer pathways.
Anke Hupe   +7 more
doaj   +1 more source

Stable Isotope Analysis of Ozark Hellbender (Cryptobranchus alleganiensis bishopi) Living and Preserved Museum Tissue Reveals a Shift in Their Generalist Diet Composition

open access: yesEcologies, 2021
Ozark hellbenders (Cryptobranchus alleganiensis bishopi) have undergone marked population declines across their entire distribution. A variety of ecological life history research has been conducted to determine the cause(s) of the declines. Historically,
Waylon Hiler   +6 more
doaj   +1 more source

Stable isotope analysis spills the beans about spatial variance in trophic structure in a fish host – parasite system from the Vaal River System, South Africa

open access: yesInternational Journal for Parasitology: Parasites and Wildlife, 2020
Stable isotope analysis offers a unique tool for comparing trophic interactions and food web architecture in ecosystems based on analysis of stable isotope ratios of carbon (13C/12C) and nitrogen (15N/14N) in organisms.
Beric M. Gilbert   +6 more
doaj   +1 more source

Aberrant water homeostasis detected by stable isotope analysis. [PDF]

open access: yesPLoS ONE, 2010
While isotopes are frequently used as tracers in investigations of disease physiology (i.e., 14C labeled glucose), few studies have examined the impact that disease, and disease-related alterations in metabolism, may have on stable isotope ratios at ...
Shannon P O'Grady   +8 more
doaj   +1 more source

Stable isotopes in monitoring terrestrial arthropods

open access: yesFrontiers in Ecology and Evolution, 2022
Monitoring of arthropods focuses typically on changes in population and range size over time. Yet, there are a myriad of other aspects that could and should be monitored under the ongoing global and local environmental change.
Atte Komonen   +2 more
doaj   +1 more source

Stable Isotope Analysis of Water [PDF]

open access: yes, 2021
The analysis of stable isotope ratios of hydrogen and oxygen in water can be applied in many research fields. This thesis starts, after some general information about the stable isotopes of water with introducing our measurement techniques. We utilized a laser-based, optical method, which has profound advantages compared to the traditional analysis ...
openaire   +1 more source

Applications of stable isotope analysis in mammalian ecology [PDF]

open access: yesIsotopes in Environmental and Health Studies, 2014
In this editorial, we provide a brief introduction and summarize the 10 research articles included in this Special Issue on Applications of stable isotope analysis in mammalian ecology. The first three articles report correction and discrimination factors that can be used to more accurately estimate the diets of extinct and extant mammals using stable ...
Walter, W David   +2 more
openaire   +4 more sources

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