Ecological responses to recent climate change
There is now ample evidence of the ecological impacts of recent climate change, from polar terrestrial to tropical marine environments. The responses of both flora and fauna span an array […]
11029 to 11040 of 14011 results
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Read more of: Ecological responses to recent climate change
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Origin and significance of 13(2)-hydroxychlorophyll derivatives in sediments
Read more of: Origin and significance of 13(2)-hydroxychlorophyll derivatives in sedimentsThe authenticity of hydroxychlorophyllderivatives in sediments has been verified by subjecting pure chlorophyll preparations to the extraction method used for sediments. Model studies of chlorophyll autoxidation reveal hydroxychlorophyll as the […]
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Radar observations of magnetospheric activity during extremely quiet solar wind conditions
Read more of: Radar observations of magnetospheric activity during extremely quiet solar wind conditionsDuring a period of extremely quiet solar wind conditions from 8 to 10 March 1997, strong activity was observed by the Southern Hemisphere Auroral Radar Experiment Super Dual Auroral Radar […]
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Systematics, distribution and biology of the cirrate octopods of the genus Opisthoteuthis (Mollusca, Cephalopoda) in the Atlantic Ocean, with description of two new species
Read more of: Systematics, distribution and biology of the cirrate octopods of the genus Opisthoteuthis (Mollusca, Cephalopoda) in the Atlantic Ocean, with description of two new speciesThe systematics of the deep-sea cirrate octopod genus Opisthoteuthis Verrill in the Atlantic Ocean is reviewed. Comparisons, based on examination of all extant type material and new, reported and unreported […]
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A statistical study of the Doppler spectral width of high-latitude ionospheric F-region echoes recorded with SuperDARN coherent HF radars
Read more of: A statistical study of the Doppler spectral width of high-latitude ionospheric F-region echoes recorded with SuperDARN coherent HF radarsThe HF radars of the Super Dual Auroral Radar Network (SuperDARN) provide measurements of the E ×B drift of ionospheric plasma over extended regions of the high-latitude ionosphere. We have […]
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Systematics, ecology and biology of cirrate octopods: a workshop report
Read more of: Systematics, ecology and biology of cirrate octopods: a workshop reportCirrate octopods are conspicuous members of the benthopelagic and bathypelagic communities and include some of the largest invertebrates of the deep-sea. Although they have often been considered to be rare […]
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Risk estimation of collapse of the West Antarctic ice sheet
Read more of: Risk estimation of collapse of the West Antarctic ice sheetComplete collapse of the West Antarctic Ice Sheet (WAIS) would raise global sea level by around 5 m, but whether collapse is likely, or even possible, has been `glaciology’s grand […]
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A mid-Cretaceous age for the Palmer Land event, Antarctic Peninsula: implications for terrane accretion timing and Gondwana palaeolatitudes
Read more of: A mid-Cretaceous age for the Palmer Land event, Antarctic Peninsula: implications for terrane accretion timing and Gondwana palaeolatitudesNew structural and age data suggest that West Gondwana may have been at lower palaeolatitudes than previously interpreted from Albian sequences in Gondwana marginal suspect terranes. The Palmer Land event, […]
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Mid-Cretaceous ductile deformation on the Eastern Palmer Land Shear Zone, Antarctica, and implications for timing of Mesozoic terrane collision
Read more of: Mid-Cretaceous ductile deformation on the Eastern Palmer Land Shear Zone, Antarctica, and implications for timing of Mesozoic terrane collisionAr–Ar dating of high-strain ductile mylonites of the Eastern Palmer Land Shear Zone in the southern Antarctic Peninsula indicates that reverse movement on the shear zone occurred in late Early […]
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Slice of intraoceanic arc: insights from the first multichannel seismic reflection profile across the South Sandwich island arc
Read more of: Slice of intraoceanic arc: insights from the first multichannel seismic reflection profile across the South Sandwich island arcWe present the first multichannel seismic (MCS) reflection line that crosses the South Sandwich Trench, South Sandwich island arc, and East Scotia Sea backarc basin. The line is used in […]
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Sediment subduction, subduction erosion, and strain regime in the northern South Sandwich forearc
Read more of: Sediment subduction, subduction erosion, and strain regime in the northern South Sandwich forearcThe first swath bathymetry and side-scan sonar imagery from the South Sandwich forearc reveals detailed seafloor morphology, tectonic fabric, and sedimentary features in an area where plate convergence is approximately […]
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Reconstruction of the historical temperature trend from measurements in a medium-length borehole on the Lomonosovfonna plateau, Svalbard
Read more of: Reconstruction of the historical temperature trend from measurements in a medium-length borehole on the Lomonosovfonna plateau, SvalbardA medium-length ice core was drilled at the ice divide on the Lomonosovfonna plateau (1230 m a.s.l.),Svalbard, in May1997.As part of this project, temperature measurements were performed in the 120 […]