Results 21 to 30 of about 3,499 (202)

An open source simulation model for soil and sediment bioturbation. [PDF]

open access: yesPLoS ONE, 2011
Bioturbation is one of the most widespread forms of ecological engineering and has significant implications for the structure and functioning of ecosystems, yet our understanding of the processes involved in biotic mixing remains incomplete.
Katja Schiffers   +3 more
doaj   +1 more source

Simulated wild boar bioturbation increases the stability of forest soil carbon [PDF]

open access: yesBiogeosciences, 2019
Most forest soils are characterised by a steep carbon gradient from the forest floor to the mineral soil, indicating that carbon is prevented from entry into the soil.
A. Don, C. Hagen, E. Grüneberg, C. Vos
doaj   +1 more source

Growth Performance of Varieties of Bean (Phaseolus vulgaris) Seedlings in Earthworm-Bioturbated Soil and Crab-Bioturbated Soil [PDF]

open access: yesIranica Journal of Energy and Environment, 2023
Earthworms and crabs are known to influence the physicochemical state of their respective soil habitats through their bioturbation actions. While earthworm-bioturbated soils have been well documented to positively affect plant growth, not much is known ...
E. O. Dada, F. A. Oke, Y. O. Balogun
doaj   +1 more source

Platinum Group Element Traces of CAMP Volcanism Associated With Low‐Latitude Environmental and Biological Disruptions

open access: yesGeophysical Monograph Series, Page 263-304., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jessica H. Whiteside   +3 more
wiley  

+3 more sources

Deciphering timing and rates of Central German Chernozem/Phaeozem formation through high resolution single-grain luminescence dating

open access: yesScientific Reports, 2023
Chernozems/Phaeozems are important agricultural resources and have been intensively used for millennia. However, their origin and age are still controversial. In Europe, the westernmost widespread Chernozem/Phaeozem area is located in Central Germany. In
Hans von Suchodoletz   +5 more
doaj   +1 more source

Bioturbation and the δ56Fe signature of dissolved iron fluxes from marine sediments

open access: yesRoyal Society Open Science, 2023
We developed a reaction-transport model capable of tracing iron isotopes in marine sediments to quantify the influence of bioturbation on the isotopic signature of the benthic dissolved (DFe) flux.
Sebastiaan J. van de Velde   +2 more
doaj   +1 more source

Mixed Signals: interpreting mixing patterns of different soil bioturbation processes through luminescence and numerical modelling [PDF]

open access: yesSOIL
Soil bioturbation plays a key role in soil functions such as carbon and nutrient cycling. Despite its importance, fundamental knowledge on how different organisms and processes impact the rates and patterns of soil mixing during bioturbation is lacking ...
W. M. van der Meij   +3 more
doaj   +1 more source

Deep Learning Applications in Geosciences: Insights into Ichnological Analysis

open access: yesApplied Sciences, 2021
Ichnological analysis, particularly assessing bioturbation index, provides critical parameters for characterizing many oil and gas reservoirs. It provides information on reservoir quality, paleodepositional conditions, redox conditions, and more. However,
Korhan Ayranci   +3 more
doaj   +1 more source

Biomineralization of primary carbonate cements: a new biosignature in the fossil record from the Anisian of Southern Italy

open access: yesLethaia, EarlyView., 2021
Biomineralization is a generic term used to indicate biological‐mediated mineral formation. In carbonate mineralization, nucleation of crystals can be: (1) controlled directly by the organisms, like in the skeletal formation of most metazoans; (2) induced by microbial communities, by indirect precipitation mediated by their metabolic activities; or (3)
Adriano Guido   +4 more
wiley   +1 more source

Multiple Sulfur Isotope Geochemistry during the Permian-Triassic Transition

open access: yesGeosciences, 2021
The end-Permian mass extinction was the largest biodiversity crisis in the Phanerozoic. Based on characteristic negative ∆33S signals of sedimentary pyrite, previous multiple sulfur isotope studies suggested shoaling of anoxic/sulfidic deep-waters onto a
Masafumi Saitoh
doaj   +1 more source

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