Results 21 to 30 of about 118,568 (280)

Stable isotopes of 18O and D in key components of water flows and the permafrost zone of Central Yakutia (Eastern Siberia)

open access: yesЛëд и снег, 2019
On the basis of about 430 analyses, the 18O and D compositions (%o) of atmospheric precipitation, ground ice, surface and inter-permafrost underground waters of cryogenic-aeolian landscapes of Central Yakutia (Eastern Siberia) are discussed ...
A. A. Galanin   +4 more
doaj   +1 more source

Ecosystem Engineers in the World Coasts: Case Studies and Conceptual Linkages

open access: yesDiversity, 2020
Research on physical ecosystem engineering—i.e., the structural modification of environments by organisms—has flourished during the last two decades. At present, the importance of physical ecosystem engineers for the biodiversity and the functioning of ...
Jorge L. Gutiérrez
doaj   +1 more source

Evidence of Coastal Changes in the West Coast of Naxos Island, Cyclades, Greece

open access: yesJournal of Marine Science and Engineering, 2021
Coastal lagoons and dunes are of great ecological importance, not only for providing habitats for rare flora and fauna, but also for protecting coastal areas from rising sea levels and storms, etc.
Niki Evelpidou   +3 more
doaj   +1 more source

Seasonal Variation of Catenary-Bead Dunes in the Yangtze River Estuary: Causes and Implications

open access: yesJournal of Marine Science and Engineering, 2022
Low-angle lee-side slopes of dunes are commonly developed on the world’s riverbeds, and dune migration associated with sediment transport exert a major influence on riverine processes.
Shuwei Zheng   +7 more
doaj   +1 more source

The dune size distribution and scaling relations of barchan dune fields [PDF]

open access: yes, 2008
Barchan dunes emerge as a collective phenomena involving the generation of thousands of them in so called barchan dune fields. By measuring the size and position of dunes in Moroccan barchan dune fields, we find that these dunes tend to distribute ...
Durán, Orencio   +3 more
core   +4 more sources

Niche partitioning in tenebrionid species (Coleoptera: Tenebrionidae) inhabiting Mediterranean coastal dunes

open access: yesEuropean Journal of Entomology, 2016
We analyzed the abundance, distribution and niche overlap of species (Pianka's Ojk index) in tenebrionid beetle communities inhabiting different biotopes in Tyrrhenian and Adriatic sand dunes.
Simone FATTORINI   +4 more
doaj   +1 more source

Mechanisms of Dune Growth and Decay in Rivers

open access: yesGeophysical Research Letters, 2021
The mechanisms responsible for dune growth and decay remain a major unknown in river dynamics. Two theories have been supported by experiments and numerical models. A hydrodynamic explanation suggests that growth and decay occur due to phase lags between
Ryan W. Bradley, Jeremy G. Venditti
doaj   +1 more source

Growing Pains in Children: What is Behind?

open access: yesВопросы современной педиатрии
Growing pain is a term describing the phenomenon of benign pain in lower limbs occurring mainly in preschool children in the evening or at night. Growing pain is one of the most common cause of musculoskeletal pain in children.
Inna A. Kostik, Mikhail M. Kostik
doaj   +1 more source

Anthropogenic degradation of dunes within a city: a disappearing feature of the cultural landscape of Toruń (Poland)

open access: yesJournal of Maps, 2021
The article presents changes in the topography of the Toruń area due to the degradation of dunes by human activity, and a reconstruction of their earlier location and morphology.
Paweł Molewski
doaj   +1 more source

Modelling transverse dunes

open access: yes, 2003
Transverse dunes appear in regions of mainly unidirectional wind and high sand availability. A dune model is extended to two dimensional calculation of the shear stress.
Herrmann, Hans J., Schwämmle, Veit
core   +2 more sources

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