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We studied sexual and individual differences in foraging and parental behavior of King Cormorants (Phalacrocorax albiventer) rearing chicks were studied at subantarctic Macquarie Island. Females dived mainly in the morning and males in the afternoon. Five females were shallow divers (1.9 to 6.8 m)…
A group of strains with potent extracellular enzymic activity were isolated from the surfaces of the chain-forming sea-ice diatom Melosira and from an unidentified macrophyte collected from the Eastern Antarctic coastal zone.
The growth rates of heterotrophic nanoflagellates (HNAN), mixotrophic cryptophytes, dinoflagellates and ciliates in field assemblages from Ace Lake in the Vestfold Hills (eastern Antarctica) and Lakes Fryxell and Hoare (McMurdo Dry Valleys, western Antarctica)…
Quartz stone sublithic cyanobacterial communities are common throughout the Vestfold Hills, Eastern Antarctica (68 degrees S 78 degrees E) contributing biomass in areas otherwise devoid of any type of vegetation. In this study…
Global Positioning System (GPS) satellites now provide a major source of data used in the study of the ionized regions that … surround the Earth. With the greater use of GPS satellites in this role…
Recent time-series measurements of atmospheric O2 show that the land biosphere and world oceans annually sequestered 1.4 ± 0.8 and 2.0 ± 0.6 gigatons of carbon, respectively between mid-1991 and mid-1997. The rapid storage of carbon by the Land biosphere from 1991 to 1997 contrasts with the 1980s…