Results 71 to 80 of about 144,400 (295)

Seabed classification in the Gulf of Alaska from acoustic surveys using deep learning

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract High‐resolution mapping of seafloor habitats has wide applications for fisheries, conservation efforts, offshore infrastructure planning, mineral extraction, and scientific modeling. This study leverages existing widespread single‐beam acoustic data and machine learning to create habitat maps for the Gulf of Alaska at a spatial resolution of ...
Karuna Agarwal   +2 more
wiley   +1 more source

3D Dune Skeleton Model as a Coupled Dynamical System of 2D Cross-Sections

open access: yes, 2010
To analyze theoretically the stability of the shape and the migration process of transverse dunes and barchans, we propose a {\it skeleton model} of 3D dunes described with coupled dynamics of 2D cross-sections.
Bishop S. R.   +8 more
core   +1 more source

Sampling effort to characterize estuarine macroinfaunal communities in patchy habitats

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Estuarine benthic macroinfauna have aggregated, patchy distributions, making accurate community measurements dependent upon sampling scales. The purpose of this study is to determine the appropriate core sizes and sampling effort needed to characterize benthic infaunal communities in Corpus Christi Bay, Texas, USA.
Paul A. Montagna
wiley   +1 more source

Corridors of barchan dunes: stability and size selection [PDF]

open access: yes, 2003
Barchans are crescentic dunes propagating on a solid ground. They form dune fields in the shape of elongated corridors in which the size and spacing between dunes are rather well selected. We show that even very realistic models for solitary dunes do not
A. Coursin   +38 more
core   +4 more sources

Time tells: plasticity and developmental asynchrony underlie trait variation in a dune‐building grass

open access: yesOikos, EarlyView.
Habitat‐modifying plants engineer landscapes through plant‐environment feedbacks. The strength of these feedbacks is determined by above‐ and below‐ground traits shaping landscape morphology. Besides interspecific differences, recent findings highlight that intraspecific trait variation, such as shoot density, can also influence landscape morphology ...
Solveig Höfer   +9 more
wiley   +1 more source

Land use reconversion in the drought-and aridity-affected areas in SW Romania (Bechet, Dolj County) [PDF]

open access: yesAnnals of the University of Bucharest: Geography Series, 2017
In the terms of current climate change, reconversion of land use in the drought-and aridityaffected south-western Romania, is an issue of utmost priority.
IULIANA VIJULIE   +4 more
doaj  

Marine litter can shift sea turtle nests toward the shoreline

open access: yesOikos, EarlyView.
Marine litter is an emerging threat to sea turtle rookeries, yet its effects on nesting behaviour remain poorly understood. In this study, we investigated how macro‐litter accumulation on beaches influences the spatial distribution of loggerhead turtle Caretta caretta nests on Boa Vista Island, Cabo Verde.
Diana Sousa‐Guedes   +4 more
wiley   +1 more source

Experimental Study of the Effect of Ripple Bedforms with Fine and Coarse Sediments on Bed Shear Stress

open access: yesعلوم آب و خاک, 2022
Bed shear stress is one of the most important hydraulic parameters to determine the amount of bed and suspended load and the bed and bank scouring in rivers. Bed shear stress depends on bedforms (ripples, dunes, and anti-dunes) in alluvial rivers.
M. Heydari   +2 more
doaj  

A Sterile Neutrino at DUNE

open access: yes, 2015
We investigate the potential for the Deep Underground Neutrino Experiment (DUNE) to probe the existence and effects of a fourth neutrino mass-eigenstate.
Berryman, Jeffrey M.   +3 more
core   +1 more source

Drivers of human attitudes towards wolves Canis lupus in Kazakhstan

open access: yesPeople and Nature, EarlyView.
Abstract Kazakhstan is recognized as a key stronghold for the grey wolf (Canis lupus). Nonetheless, the wolf status and the dynamics of human‐wolf coexistence in the region remain poorly understood. This study aims to fill that gap by exploring current attitudes towards wolves in Kazakhstan and identify the underlying drivers of these attitudes.
Alyona Koshkina   +5 more
wiley   +1 more source

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