Results 21 to 30 of about 641,342 (317)

Mill dams impact microbiome structure and depth distribution in riparian sediments

Frontiers in Microbiology, 2023
IntroductionDamming has substantially fragmented and altered riverine ecosystems worldwide. Dams slow down streamflows, raise stream and groundwater levels, create anoxic or hypoxic hyporheic and riparian environments and result in deposition of fine ...
Jinjun Kan, Erin K. Peck, Laura Zgleszewski, Marc Peipoch, Shreeram Inamdar   +4 more
doaj   +1 more source

Impact of Microsetella norvegica on carbon flux attenuation and as a secondary producer during the polar night in the subarctic Porsangerfjord

Frontiers in Marine Science, 2023
It is known that Microsetella norvegica feed on phytoplankton and provide an important link to higher trophic levels in Arctic fjords, such as fish sprat (Sprattus sprattus) and three-spined stickleback (Gasterosteus aculeatus).
Benjamin Paul Mooney, Benjamin Paul Mooney, Morten Hvitfeldt Iversen, Morten Hvitfeldt Iversen, Morten Hvitfeldt Iversen, Maria Fredrika Norrbin   +5 more
doaj   +1 more source

Models on diel vertical migration [PDF]

, 1993
To clarify what can be expected from models the role of modelling in the scientific process in relation to experiments and field studies is addressed. Hypotheses to explain vertical migration are reviewed with respect to the selection mechanism assumed ...
Gabriel, W., Gabriel, Wilfried
core   +1 more source

Analysis of Impact of Altitude on Vertical Distribution Pattern of Soil Organic Carbon in Mountainous Regions of Southeastern Tibet

Guangdong nongye kexue, 2022
【Objective】The spatial heterogeneity of alpine ecosystems in southeastern Tibet in the vertical distribution zone was analyzed, and the distribution characteristics and influencing factors of soil organic carbon(SOC)reserves at different altitudes were ...
Shalin HUANG, Jing LI, Wenji YANG, Tianmiao LIN, Wu YU   +4 more
doaj   +1 more source

Vertical distribution of ¹³⁷Cs in soddy-podzolic sandy soil in grasslands and forests of the Bryansk region in 2015–2016

Радиационная гигиена, 2019
Vertical distribution of natural and man-made radionuclides in the soil profile is a decisive parameter when calculating the dose rate of gamma radiation in the air above the ground and the effective dose of external human exposure.
V. P. Ramzaev, A. N. Barkovsky, K V. Varfolomeeva   +2 more
doaj   +1 more source

Microplastics segregation by rise velocity at the ocean surface

Environmental Research Letters, 2023
Predicting the vertical distribution of microplastics in the ocean surface mixed layer is necessary for extrapolating surface measurements and comparing observations across conditions.
Michelle H DiBenedetto, Jessica Donohue, Kate Tremblay, Ethan Edson, Kara Lavender Law   +4 more
doaj   +1 more source

Radar studies of the vertical distribution of insects migrating over southern Britain: the influence of temperature inversions on nocturnal layer concentrations [PDF]

, 2005
Insects migrating over two sites in southern UK (Malvern in Worcestershire, and Harpenden in Hertfordshire) have been monitored continuously with nutating vertical-looking radars (VLRs) equipped with powerful control and analysis software.
A.S. Edwards, D.R. Reynolds, Reynolds, D.R., Wood, Curtis Ron, Chapman, J.W., Smith, A.D., Smith, A. D., Woiwod, I. P., C.R. Wood, Woiwod, I.P., I.P. Woiwod, Wood, C. R., Barlow, Janet Fraser, Chapman, J. W., Barlow, J. F., A.D. Smith, J.F. Barlow, J.W. Chapman, Edwards, A. S., Edwards, A.S., Reynolds, D. R.   +20 more
core   +1 more source

Vertical distribution of soil free-living nematode in a playa habitat in the North-Western Negev desert, Israel

Helminthologia, 2020
In order to investigate the vertical distribution of soil nematode community under a playa area in the Nizzana inter-sand dune area in the north-western Negev Desert of Israel, soil samples were collected from 0 – 10, 10 – 20, 20 – 30, 30 – 40, and 40 ...
Hu C., Pen-Mouratov S., Steinberger Y.
doaj   +1 more source

Retrieval of Dissolved Organic Carbon Storage in Plateau Lakes Based on Remote Sensing and Analysis of Driving Factors: A Case Study of Lake Dianchi

Remote Sensing
Dissolved organic carbon (DOC) is an essential form of carbon in lakes and has significant impact on thermal structure and carbon source-supporting food webs. Current remote sensing studies on DOC mainly focus on the retrieval of surface concentration of
Yufeng Yang, Wei Gao, Yuan Zhang
doaj   +1 more source

Jellyfish distribute vertically according to irradiance [PDF]

Journal of Plankton Research, 2017
We tested the hypothesis that the coronate jellyfish Periphylla periphylla distributes vertically according to a preferential range of absolute light intensities. The study was carried out in Lurefjorden, Norway, a fjord characterized by mass occurrences of this jellyfish. We collected data on the vertical distribution of P.
Bozman, Andrea, Titelman, Josefin, Kaartvedt, Stein, Eiane, Ketil, Aksnes, Dag Lorents   +4 more
openaire   +5 more sources