Results 101 to 110 of about 72,159 (349)

Richness patterns in vertebrates are robust to the Linnean and Wallacean shortfalls

Ecography, EarlyView.
Nearly all research has to rely on imprecise data. This poses a challenge of knowing which conclusions are reliable despite potential data quality issues. One field that has been fundamentally affected by this is macroecology. Can we understand drivers of biodiversity patterns without having fully reliable distributional data?
Søren Faurby, Brody Sandel
wiley   +1 more source

Shear-Wave Splitting and Mantle Flow Beneath the Colorado Plateau and its Boundary with the Great Basin [PDF]

, 2008
Shear-wave splitting measurements from SKS and SKKS phases show fast polarization azimuths that are subparallel to North American absolute plate motion within the central Rio Grande Rift (RGR) and Colorado Plateau (CP) through to the western rim of the ...
Aster, Richard, Baldridge, W. Scott, Grand, Stephen P., Ni, James F., Sandvol, Eric, Sine, Christopher, Wang, Xinling L., Wilson, David   +7 more
core   +1 more source

Testing the abundant centre hypothesis in a seabird: higher energy expenditure at the wintering range centre does not reduce reproductive success

Ecography, EarlyView.
Understanding variation in animal distributions is a central and challenging question in ecology that has become particularly critical in the context of global environmental changes. While distributions are often studied for resident or breeding species, species range limits are equally important for migratory species in winter when population ...
Don‐Jean Léandri‐Breton, Kyle H. Elliott, Arnaud Tarroux, Pierre Legagneux, William Jouanneau, Françoise Amélineau, Frédéric Angelier, Pierre Blévin, Vegard Sandøy Bråthen, Per Fauchald, Geir W. Gabrielsen, Aurélie Goutte, Sabrina Tartu, Børge Moe, Olivier Chastel   +14 more
wiley   +1 more source

Resolution test of GOCE satellite data applied to density anomalies at crustal and upper mantle levels

Geologica Acta, 2018
The Gravity field and steady-state Ocean Circulation Explorer (GOCE) satellite mission was devised by the European Space Agency to study the Earth’s gravity field with an unprecedented accuracy using gravity gradient data.
M. PERAL, M. FERNÀNDEZ, M. TORNÉ
doaj  

Persistent Heterogeneities in the Oceanic Lithosphere Due To Differential Freezing Beneath Ridges

Geophysical Research Letters
Oceanic lithosphere, which forms two‐thirds of Earth's surface, is generated at mid‐ocean ridge spreading centers. Yet the internal structure of the lithosphere is not well characterized and often considered to be homogeneous relative to the structure of
Shi Joyce Sim, Ting‐Ying Yu, Chris Havlin   +2 more
doaj   +1 more source

A Magma Accretion Model for the Formation of Oceanic Lithosphere: Implications for Global Heat Loss [PDF]

arXiv, 2010
A simple magma accretion model of the oceanic lithosphere is proposed and its implications for understanding the thermal field of oceanic lithosphere examined. The new model (designated VBA) assumes existence of lateral variations in magma accretion rates and temperatures at the boundary zone between the lithosphere and the asthenosphere. Heat flow and
arxiv  

Tertiary-Quaternary intra-plate magmatism in Europe and its relationship to mantle dynamics [PDF]

, 2006
Anorogenic intra-plate magmatism was widespread in Europe from early Tertiary to Recent times, extending west to east from Spain to Bulgaria, and south to north from Sicily to northern Germany. Magmatism is spatially and temporally associated with Alpine-
Downes, Hilary, Wilson, M.
core   +1 more source

Evaluating migration hypotheses for the extinct Glyptotherium using ecological niche modeling

Ecography, EarlyView.
The formation of the Isthmus of Panama allowed for migrations between the once separated continents of North and South America. This led to one of the greatest documented interchanges of biota in Earth history, wherein an array of species across many groups migrated between the continents.
Katherine M. Magoulick, Erin E. Saupe, Alexander Farnsworth, Paul J. Valdes, Charles R. Marshall   +4 more
wiley   +1 more source

XXIV ALLRUSSIA YOUTH CONFERENCE ON STRUCTURE OF LITHOSPHERE AND GEODYNAMICS, IRKUTSK, RUSSIA, APRIL 19–24, 2011

Геодинамика и тектонофизика, 2015
The information on the XXIV AllRussia youth conference on structure of lithosphere and geodynamics is presented. It was held on April 19–24, 2011 at the Institute of the Earth’s Crust, Irkutsk. The scope of conference is presented.
Victoria A. Khak
doaj   +1 more source

Lithosphere-asthenosphere system in the Mediterranean region in the framework of polarized plate tectonics [PDF]

arXiv, 2015
Velocity structure of the lithosphere-asthenosphere system, to the depth of about 350 km, is obtained for almost 400 cells, sized 1 degree by 1 degree in the Mediterranean region. The models are obtained by the following sequence of methods and tools: surface-wave dispersion measurements and collection; 2D tomography of dispersion relations; non-linear
arxiv