13873 to 13884 of 14011 results
-
-
An introduction to EASIZ (Ecology of the Antarctic Sea Ice Zone): an integrated programme of water column, benthos and bentho-pelagic coupling in the coastal environment of Antarctica
Read more of: An introduction to EASIZ (Ecology of the Antarctic Sea Ice Zone): an integrated programme of water column, benthos and bentho-pelagic coupling in the coastal environment of AntarcticaThe EASIZ (Ecology of the Antarctic Sea Ice Zone) programme ran from 1994 to 2004, and involved over 150 scientists from more than 17 countries. The main scientific aim was […]
-
Climate, energy and diversity
Read more of: Climate, energy and diversityIn recent years, a number of species–energy hypotheses have been developed to explain global patterns in plant and animal diversity. These hypotheses frequently fail to distinguish between fundamentally different forms […]
-
The importance of atmospheric precipitation in storm-time relativistic electron flux drop outs
Read more of: The importance of atmospheric precipitation in storm-time relativistic electron flux drop outsDuring the sudden decrease of geosynchronous electron flux (>2 MeV) of 17:10–17:20 UT, January 21, 2005 large-scale precipitation into the atmosphere was observed. Estimates from ground-based radio propagation experiments at […]
-
Modeling polar ionospheric effects during the October-November 2003 solar proton events
Read more of: Modeling polar ionospheric effects during the October-November 2003 solar proton eventsAt Ny Ålesund, Svalbard (78°54′N, 11°53′E, L ∼ 18), a narrowband VLF receiver was used to monitor the behavior of the amplitude of several high-power transmitters located in the Northern […]
-
Hypolithic colonization of opaque rocks in the Arctic and Antarctic polar desert
Read more of: Hypolithic colonization of opaque rocks in the Arctic and Antarctic polar desertThe colonization of the underside of rocks normally requires that the material is sufficiently translucent to allow the penetration of photosynthetically active radiation. We examined the underside of 950 opaque […]
-
Responses of terrestrial Antarctic ecosystems to climate change
Read more of: Responses of terrestrial Antarctic ecosystems to climate changeAntarctic terrestrial biota are generally limited by the inexorably linked environmental factors of low summer temperature and lack of available water. However, in parts of the Antarctic, both these factors […]
-
Morphological differences in Lissarca notorcadensis Melvill and Standen, 1907 from the Scotia, Weddell and Ross Seas
Read more of: Morphological differences in Lissarca notorcadensis Melvill and Standen, 1907 from the Scotia, Weddell and Ross SeasThe isolated Southern Ocean has given rise to specially adapted, endemic species. The uniformity of physical conditions within the Southern Ocean south of the Polar Front is thought to limit […]
-
ULF Doppler oscillation of L = 2.5 flux tubes
Read more of: ULF Doppler oscillation of L = 2.5 flux tubesPlasmaspheric ducts may execute Doppler oscillations driven by propagating ultra-low frequency (ULF) waves. We examined about 100 such events recorded over 1 year under magnetically quiet conditions at L = […]
-
Antarctic sessile marine benthos: colonisation and growth on artificial substrata over three years
Read more of: Antarctic sessile marine benthos: colonisation and growth on artificial substrata over three yearsThe development of sessile invertebrate assemblages on hard substrata has been studied extensively in temperate and tropical latitudes. Such studies provide insights into a range of ecological processes, and the […]
-
Use of moored acoustic instruments to measure short-term variability in abundance of Antarctic krill
Read more of: Use of moored acoustic instruments to measure short-term variability in abundance of Antarctic krillUpward-looking acoustic Doppler current profilers (ADCPs) (300 kHz) and echosounders (125 kHz) were deployed on moorings at South Georgia to measure abundance of Antarctic krill continuously over several months. Echoes […]
-
Nematode diversity and distribution in the southern maritime Antarctic – clues to history?
Read more of: Nematode diversity and distribution in the southern maritime Antarctic – clues to history?Nematode worms are one of the most important soil faunal groups in Antarctica. However, relatively little is known about their wider distribution, biogeography and history in the region, and taxonomic […]