Global Change Master Directory gsfc-gcmduso@mail.nasa.gov 50 2013-05-19T07:45:24Z http://mddemo.gsfc.nasa.gov/KeywordSearch/OpenSearch.do 27 0 http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]110-88_03 -58.15,-62.03,-58.15,-62.03 1993-11-01T00:00:00Z 1993-11-18T00:00:00Z 2011-07-29T04:00:00Z

In Usnea aurantiaco-atra (Jacq)- Bory, a lichen species collected in the Antarctica, the gold content was determined by the cupellation methods, 317 ppb and 1089 ppb dry weight were found in the lichen ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]154-93_03 -59.38,-62.29,-59.38,-62.29 1994-01-02T00:00:00Z T00:00:00Z 2011-04-13T04:00:00Z

From January of 1994 and to date, weekly censuses of birds and marine mammals have been taken in the coastal sector of Chile Bay, between the Caleton Iquique and the English Strait located near Greenwich ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]018-94_01 -60.77,-62.47,-60.77,-62.47 1994-11-24T00:00:00Z T00:00:00Z 2011-04-07T04:00:00Z

This data set contains information related to the collection of waste at the coast of Cape Shirreff, Livingston Island. The material collected corresponds only to the wastes generated off-shore as ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]110-88_02 -59.42,-62.22,-59.42,-62.22 1989-01-05T00:00:00Z 1989-02-20T00:00:00Z 2011-04-07T04:00:00Z

Densitometric analysis (HPTLC) was used to determine the concentrations of phenolic metabolites in thalli of different ages in Umbilicaria antarctica Frey et Lamb. Usnic acid and atranorin concentrations ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]110-88_01 -57.37,-62.28,-57.37,-62.28 1987-02-05T00:00:00Z 1989-12-05T00:00:00Z 2011-04-07T04:00:00Z

In Usnea aurantiaco-atra, growing in the Antarctica, a monthly variation in the usnic acid content, in individual thalli, was studied by means of scanning densitometry (HPTLC). The higher accumulation ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]003-94_02 -59.42,-62.22,-59.42,-62.22 1996-01-11T00:00:00Z 1996-01-30T00:00:00Z 2011-04-07T04:00:00Z

Solar ultraviolet radiation measurements by means of chemical actinometry and spectroradiometric instrumental were carried out at the Risopatron base at Robert Island, Antarctic, during January 1996. ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]148-92_02 -59.43,-62.22,-59.43,-62.22 1992-02-21T00:00:00Z 1992-02-21T00:00:00Z 2007-02-26T05:00:00Z

Deschampsia antarctica plants were collected in Robert Island, Antarctica, and frozen in liquid nitrogen. Polar lipids and the composition of fatty acids in phospholipids and galactolipids were analysed ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]148-92_01 -59.43,-62.22,-59.43,-62.22 1993-01-01T00:00:00Z 1993-01-30T00:00:00Z 2007-02-26T05:00:00Z

The distribution and size structure of tussocks of the population of Deschampsia antarctica Desv. was studied in the Coppermine Peninsula, Robert Island. Different study sites showed predominance ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]20-82_02_INACH -58.15,-62.03,-58.15,-62.03 1984-01-13T00:00:00Z T00:00:00Z 2005-04-06T04:00:00Z

Two new asterosaponins, validosides A and B, were isolated from the butanolic extract of the starfish Odontaster validus and their structures established as (24S)-24-O-[2,4-di-O-methyl-B-xylopyranosyl-(1-2)-a-arabinofuranosyl]-5a-chol-e ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]012-98_04 -59.13,-62.22,-59.13,-62.22 1999-01-06T00:00:00Z T00:00:00Z 2005-03-26T05:00:00Z

The data is derived from a study of the reaction of Deschampsia to environmental conditions during the Antarctic summer and consists of biochemical analyses of leaves, analyses by HPLC of lipids, ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]154-93_02 -59.37,-62.28,-59.37,-62.28 1994-02-28T00:00:00Z T00:00:00Z 2005-03-26T05:00:00Z

During summer to the beginning of autumn, samples of zooplankton were gathered between water depths 0 and 200 meters weekly from a fixed station in the English Strait, Chile Bay. Samples were collected ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]20-82_01 -59.44,-62.3,-59.44,-62.3 1984-01-13T00:00:00Z 1991-02-06T00:00:00Z 2005-03-25T05:00:00Z

A new asterosaponin, named santiagoside, has been isolated from the Antarctic starfish Neosmilaster georgianus and, its structure elucidated on the basic of extensive spectroscopic experiments and ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]154-93_04 -59.38,-62.29,-59.38,-62.29 1997-01-23T00:00:00Z 1997-02-23T00:00:00Z 2005-03-23T05:00:00Z

For this study, determination of stature, distribution of the sexes, zonation and relative abundance of the population were determined for the Antarctic limpet Nacella concinna in the intertidal ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]08-93_01 -65.0,-69.3,-65.0,-69.3 1994-12-10T00:00:00Z 1998-02-11T00:00:00Z 2005-03-08T05:00:00Z

In the summers of 1994/95, 1995/96, 1996/97 and 1997/98, researchers visited the waters of Patagonian Channels, Drake Passage, Bransfield Strait and de Gerlache Strait looking for cetaceans. The observations ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]040-87_01 -62.04,-64.31,-62.04,-64.31-68.11,-67.11,-68.11,-67.11 1980-10-15T00:00:00Z T00:00:00Z 2005-01-25T05:00:00Z

The data set contains information about the ecology of the pygoscelidos penguins (Papua, adelie and antarctic). These data consist of a census of nesting groups, chick weight gain, and chick mortality ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]018-93_01 -60.77,-62.47,-60.77,-62.47 1994-11-24T00:00:00Z T00:00:00Z 2004-11-04T05:00:00Z

The data set contains information on the main meteorological and micro-climatic variables of the Cape Shirreff area in Livingston Island. Three stations were installed in Daniel Beach, Paso Ancho ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]018-82_11 -60.77,-62.47,-60.77,-62.47 1996-12-11T00:00:00Z T00:00:00Z 2004-11-02T05:00:00Z

The data consist in samples of male and female Antarctic fur seal faeces, collected for studying their diet. During the season 1998/99 the harvesting of Weddell seals' faeces were added.

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]018-82_09 -60.77,-62.47,-60.77,-62.47 1993-12-12T00:00:00Z T00:00:00Z 2004-11-02T05:00:00Z

The data consist of the duration of the feeding trips by female Antarctic fur seal, as well as of its land permanence, measured indirectly according to the presence or absence of the female next to ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]012-98_03 -59.13,-62.22,-59.13,-62.22 1992-02-15T00:00:00Z T00:00:00Z 2004-11-02T05:00:00Z

Studies related to the content of non-structural sweeten in Desachampsia antarctica, have been made since 1992. It has been found that the plant accumulates high levels of saccharose and fructose. ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]018-82_02 -60.77,-62.47,-60.77,-62.47 1994-11-29T00:00:00Z T00:00:00Z 2004-11-02T05:00:00Z

Periodic censuses (daily, every second day and every two days) of fur seal in focal beaches in cape Shirreff, Livingston Island, Antarctica in three beaches (Daniel, Copihue and Lober?a, respectively), ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]012-98_02 -59.13,-62.22,-59.13,-62.22 1993-01-07T00:00:00Z 1993-01-30T00:00:00Z 2004-11-02T05:00:00Z

Data set consists of a statistical analysis (census count) of Deschampsia antarctica population on Robert Island in the South Shetland Islands.

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]018-82_04 -60.77,-62.47,-60.77,-62.47 1991-12-16T00:00:00Z T00:00:00Z 2004-11-02T05:00:00Z

The data show the weighing of pups following the standard method of CCAMLR (Commission for the Conservation of Antarctic Marine Living Resources) C2, version B. 50 males and 50 females are weight ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]018-82_05 -60.77,-62.47,-60.77,-62.47 1993-12-03T00:00:00Z T00:00:00Z 2004-11-02T05:00:00Z

The data is related to periodic weighing (between 5 and 10 days) of pups of both sexes throughout the season. The data includes the corporal measures of the puppies (total length and pectoral width), ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]018-82_06 -60.77,-62.46,-60.77,-62.46 1982-01-04T00:00:00Z T00:00:00Z 2004-11-02T05:00:00Z

The data is related to tagging of fur seal pups of both beach sexes from different beaches on Cape Shirreff, with the purpose of studying the degrees of philopatry, migration and pursuits of the colony ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]018-82_10 -71.0,-62.0,-60.0,-52.0 1991-11-27T00:00:00Z T00:00:00Z 2004-10-27T04:00:00Z

The data consist of marine mammals (cetaceans and pinipeds) registries obtained during sightings during navigation to and from Cape Shirreff. Data also consist of observations of cetaceans in Cape ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]018-82_01 -60.77,-62.47,-60.77,-62.47-60.5,-62.28,-60.5,-62.28 1982-11-01T00:00:00Z T00:00:00Z 2004-09-01T04:00:00Z

There are population data of Antarctic fur seal from reproductive season 1982-83 up the present. The first censuses correspond to counts without separation in etarial category, this separation started ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]003-94_01 -58.15,-62.03,-58.15,-62.03-59.44,-62.3,-59.44,-62.3-59.3,-62.24,-59.3,-62.24-60.27,-62.37,-60.27,-62.37 1966-02-01T00:00:00Z 1996-02-01T00:00:00Z 2004-08-06T04:00:00Z

The absorbing properties of UV radiation of lichen phenols agree with their photoprotector capacity determined by in vivo and in vitro methods. The photostability that characterizes these compounds ...