Results 31 to 40 of about 410,858 (346)

Nutrients cause consolidation of soil carbon flux to small proportion of bacterial community

open access: yesNature Communications, 2021
The fate of soil carbon depends on microbial processes, but whether different microbial taxa have individualistic effects on carbon fluxes is unknown.
Bram W. Stone   +12 more
doaj   +1 more source

Effect of dietary stable isotopic ratios of carbon and nitrogen on the extent of their incorporation into tissues of rats

open access: yesJournal of Animal Science and Biotechnology, 2012
This study was conducted to investigate the effect of different dietary ratios of 13 C to 12 C or 15 N to 14 N on their relative incorporation into tissues.
Lv Wentao   +4 more
doaj   +1 more source

Tree growth acceleration and expansion of alpine forests: The synergistic effect of atmospheric and edaphic change. [PDF]

open access: yes, 2016
Many forest ecosystems have experienced recent declines in productivity; however, in some alpine regions, tree growth and forest expansion are increasing at marked rates.
Horwath, William R   +5 more
core   +2 more sources

Effects of Upwelling Intensity on Nitrogen and Carbon Fluxes through the Planktonic Food Web off A Coruña (Galicia, NW Spain) assessed with Stable Isotopes

open access: yesDiversity, 2020
The input of new nutrients by upwelling in shelf waters, and the associated carbon and nitrogen fluxes, can be traced by their stable isotope signatures in organic matter.
Antonio Bode   +2 more
doaj   +1 more source

Neutrino fluence after r-process freeze-out and abundances of Te isotopes in presolar diamonds [PDF]

open access: yes, 1998
Using the data of Richter et al. (1998) on Te isotopes in diamond grains from a meteorite, we derive bounds on the neutrino fluence and the decay timescale of the neutrino flux relevant for the supernova r-process. Our new bound on the neutrino fluence F
Anders E.   +7 more
core   +2 more sources

Carbon stable isotopes as a palaeoclimate proxy in vascular plant dominated peatlands

open access: yes, 2015
Carbon stable isotope (δ 13 C) records from vascular plant dominated peatlands have been used as a palaeoclimate proxy, but a better empirical understanding of fractionation processes in these ecosystems is required. Here, we test the potential of δ 13 C
M. Amesbury   +8 more
semanticscholar   +1 more source

Application of Nitrogen and Carbon Stable Isotopes (δ15N and δ13C) to Quantify Food Chain Length and Trophic Structure

open access: yesPLoS ONE, 2014
Increasingly, stable isotope ratios of nitrogen (δ15N) and carbon (δ13C) are used to quantify trophic structure, though relatively few studies have tested accuracy of isotopic structural measures.
M. Perkins   +5 more
semanticscholar   +1 more source

Effects of spoilage on nitrogen and carbon stable isotopes signatures of the clam Ruditapes decussatus [PDF]

open access: yes, 2018
Fish and seafood products are highly susceptible to post-mortem spoilage due to autolytic reactions at start, then microbiological activity and eventually oxidative reactions.
A Lucas   +23 more
core   +1 more source

Determining trophic niche width: a novel approach using stable isotope analysis [PDF]

open access: yes, 2004
1. Although conceptually robust, it has proven difficult to find practical measures of niche width that are simple to obtain, yet provide an adequate descriptor of the ecological position of the population examined. 2.
Adams, C.E.   +4 more
core   +1 more source

Stable Carbon Isotopes in Zea mays [PDF]

open access: yes, 2018
Summary The increasing demand for food production and predicted climate change scenarios highlight the need for improvements in crop sustainability. The efficient use of water will become increasingly important for rainfed agricultural crops even in fertile regions that have historically received ample precipitation ...
Twohey III, Robert J.   +2 more
openaire   +1 more source

Home - About - Disclaimer - Privacy