Global Change Master Directorygsfc-gcmduso@mail.nasa.gov502013-05-19T04:59:36Zamd Search: [Parameters: Topic='BIOSPHERE', Term='TERRESTRIAL ECOSYSTEMS', Variable_Level_1='ALPINE/TUNDRA']http://mddemo.gsfc.nasa.gov/KeywordSearch/OpenSearch.do 30 0 http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]LGPLatitudinal Gradient Project - Australian contributions168.0,-86.0,180.0,-72.01989-01-01T00:00:00ZT00:00:00Z2012-07-13T04:00:00ZThis record relates to the Australian component of the Latitudinal Gradient Project. The LGP is largely a New Zealand, US and Italian venture, but a small contribution has been made by Australian ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_1015_MarionIsVegetation communities, species distribution and foliar morphology as indicators of climate change on Marion Island37.75,-46.9,37.75,-46.92000-03-01T00:00:00Z2000-04-30T00:00:00Z2012-04-25T04:00:00ZAltitudinal variations in vegetation community composition, species ranges and foliar morphology were collected on subantarctic Marion Island.
Two altitudinal transects on the eastern slopes of the ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]FATEplant and animal propagules inadvertently carried into the Antarctic-59.03,-51.76,-59.03,-51.76-45.59,-60.71,-45.59,-60.71-68.22,-67.61,-68.22,-67.612003-01-01T00:00:00Z2007-01-01T00:00:00Z2012-02-02T05:00:00ZData were collected on three sites, see under Purpose.
For Falklands Islands there are observations and countings of species, and data on soil respiration (2004, 2005).
For all three sites climate ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]Polar_Ecosystem_Global_Warming_Huiskes_IPY59_NLClimate change and Polar Terrestrial Ecosystems-59.03,-51.76,-59.03,-51.76-45.59,-60.71,-45.59,-60.71-68.22,-67.61,-68.22,-67.612007-10-01T00:00:00Z2010-12-31T00:00:00Z2012-01-18T05:00:00ZEnvironmental manipulation studies are integral to determine impacts of climate warming. Chambers are predominantly used to assess summer warming on terrestrial biota, while changes during other seasons ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ACEAntarctic Coastal Ecology60.0,60.0,65.0,70.01990-10-01T00:00:00Z1996-01-01T00:00:00Z2012-01-12T05:00:00ZObjectives:
? To assess the structure and functioning of the Antarctic coastal ecosystem and the relationships between marine and terrestrial biota.
? To assess the origin of organic ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]JCADM_NL-NADC_BIOTIC_RESPONSESBiotic Responses to UV-B Radiation in Antarctica-69.0,-68.0,-68.0,-67.01997-01-01T00:00:00Z2000-01-01T00:00:00Z2012-01-11T05:00:00ZThe significant impact of enhanced UV-B radiation on Antarctic marine
organisms has been widely recognized. So far studies on Antarctic
terrestrial organisms are few.
The aim of the project is to ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]Deschampsia_project_NL_WouwPopulation increase in Deschampsia Antarctica: genotypic variation or phenotypic plasticity?-68.34,-67.6,51.0,-47.02003-01-01T00:00:00Z2006-03-01T00:00:00Z2012-01-11T05:00:00ZPROBLEM DEFINITION
Genetic exchange between local populations of Deschampsia Antarctica (Poaceae), one of the two phanerogams occurring in Antarctica, might be difficult. Dispersal of the species ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]110-88_03The occurrence of gold in Usnea auratiaco-atra-58.15,-62.03,-58.15,-62.031993-11-01T00:00:00Z1993-11-18T00:00:00Z2011-07-29T04:00:00ZIn 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?[AADC]ASAC_2153Investigation of virus biodiversity in Antarctic terrestrial plants158.8,-54.7,158.9,-54.673.1,-53.1,73.4,-52.6110.48,-66.29,110.55,-66.2762.84,-67.65,62.9,-67.5577.91,-68.61,77.99,-68.541998-11-01T00:00:00Z1999-12-31T00:00:00Z2000-10-01T00:00:00Z2000-11-30T00:00:00Z1999-11-01T00:00:00Z2004-03-31T00:00:00Z2006-03-01T00:00:00Z2006-04-05T00:00:00Z2007-04-10T00:00:00Z2007-04-17T00:00:00Z2008-09-30T00:00:00Z2009-03-31T00:00:00Z2009-12-01T00:00:00Z2010-01-31T00:00:00Z2011-05-10T04:00:00ZSamples from Macquarie Island were collected between 1998 and 2004. Samples from Heard Island were collected during 2000. Continental samples were collected between 2004 and 2006. This project aims ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]110-88_02Quantitative variations of phenolic compounds related to thallus age in Umbilicaria antarctica in Antarctica-59.42,-62.22,-59.42,-62.221989-01-05T00:00:00Z1989-02-20T00:00:00Z2011-04-07T04:00:00ZDensitometric 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_01Temporal variation in usnic acid concentration in Usnea aurantiaco-atra in Antarctica-57.37,-62.28,-57.37,-62.281987-02-05T00:00:00Z1989-12-05T00:00:00Z2011-04-07T04:00:00ZIn 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_02UV Radiation at Robert Island, South Shetland, Antarctica-59.42,-62.22,-59.42,-62.221996-01-11T00:00:00Z1996-01-30T00:00:00Z2011-04-07T04:00:00ZSolar 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?[AADC]DB_IMAGEAntarcticaIMAGEAntarctica Database - A Catalogue of Antarctic Images by the Australian Antarctic Division60.0,-75.0,160.0,-53.01838-01-01T00:00:00ZT00:00:00Z2010-12-21T05:00:00ZThe IMAGEAntarctica catalogue contains records of images held in the Australian Antarctic Division's Multimedia Image Library.
The material predominantly depicts Australia's presence and activities ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]Macq_Is_JJ_001Vegetation studies: Grazing and Long-term change158.8,-54.68,158.9,-54.561965-03-01T00:00:00ZT00:00:00Z2010-08-10T04:00:00ZData comprise records of vegetation change on Macquarie Island as a result of grazing by rabbits and possible effects of climatic change. Data include presence and absence of species, together with ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_1104Measurement of moss growth rates in Antarctica62.0,-67.0,110.0,-66.01982-09-30T00:00:00Z2006-03-31T00:00:00Z2010-07-26T04:00:00ZMetadata record for data from ASAC Project 1104
See the link below for public details on this project.
---- Public Summary from Project----
Mosses are dominant plants in the ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]TAD001Impacts of climate change on Antarctic vascular plants: warming and UV-B radiation-180.0,-90.0,180.0,-62.832010-07-02T04:00:00ZOur research examined the influence of ultraviolet-B radiation
(UV-B) and warming on the performance of Antarctic flowering plants
(i.e. Deschampsia antarctica, ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]AAS_3130Spatial analysis of changing terrestrial ecosystems in the Windmill Islands and the sub-Antarctic110.0,-67.0,111.0,-66.0158.8,-54.5,158.9,-54.02009-09-30T00:00:00Z2014-03-31T00:00:00Z2010-04-30T04:00:00ZMetadata record for data from AAS (ASAC) project 3130.
Public
High latitude terrestrial ecosystems are experiencing rapid change, which is most likely caused by climate change, human impacts, and ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_1015_MI_InvertsMicroinvertebrates Survey on Macquarie Island158.0,-54.0,159.0,-54.02001-10-01T00:00:00Z2002-03-31T00:00:00Z2009-08-14T04:00:00ZMICROINVERTEBRATE SAMPLING PROTOCOL
Macquarie Island
01 October 2001 - 28 February 2002
A.HABITATS SAMPLED
8 habitats representative ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]CNDA-ESP_ANT94-0905_LIQ_05Adaptive strategies of lichen species to cold environments: Antarctica and the Mediterranean high mountains.-60.0,-63.0,-60.0,-63.01995-01-19T00:00:00Z1995-02-09T00:00:00Z2009-06-18T04:00:00ZIn English:
At the beginning of the 1990's our ecophysiological research on Antarctic
lichens was focussed on adaptations to cope with low temperatures. We assumed
that low ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]CNDA-ESP_LIQ_PADBiology of lichen communities in Antarctica.-60.0,-63.0,-60.0,-63.01992-02-15T00:00:00Z1992-02-25T00:00:00Z1991-01-01T00:00:00Z1991-02-28T00:00:00Z1993-01-08T00:00:00Z1993-01-27T00:00:00Z1995-02-09T00:00:00Z1995-02-09T00:00:00Z1995-12-10T00:00:00Z1996-01-15T00:00:00Z1996-01-01T00:00:00Z1997-01-01T00:00:00Z1994-01-18T00:00:00Z1994-01-29T00:00:00Z2001-01-17T00:00:00Z2001-01-17T00:00:00Z2009-06-18T04:00:00ZIn English:
This dataset contains information on the registered data on studies of the
biology of lichen communities in Antarctica. This dataset is also the parent
record ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NOAA_NCDC_PALEO_2001-046BIOME 6000: Reconstructed Biomes from Palaeoecological Data-180.0,-90.0,180.0,90.02009-04-20T04:00:00ZThe Global Palaeovegetation Mapping (BIOME 6000) Project is a community-wide
collaboration inaugurated in 1994 under the joint auspices of four of the
elements of the International Geosphere-Biosphere ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K140_2002_2003_NZ_3Microclimate temperatures at Cape Hallett170.2667,-72.3167,170.2667,-72.31672002-11-01T00:00:00Z2003-01-01T00:00:00Z2009-02-09T05:00:00ZReplicated microclimate temperatures recorded at 10-min intervals in
representative habitats for Collembola Arthropods at Cape Hallett, Antarctica
over 2002/2003 summer.http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]Heard_veg_survey_86-88Heard Island Vegetation Survey 1986-1987 and 1987-198872.0,-53.0,73.0,-53.01986-11-16T00:00:00Z1987-01-21T00:00:00Z1987-09-18T00:00:00Z1988-03-02T00:00:00Z2009-01-21T05:00:00ZVegetation surveys were conducted on Heard Island during the 1986/87 and 1987/88 Australian National Antarctic Research Expeditions (ANARE). A stratified sampling approach was adopted. Given the limited ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]LTERU.S. Long-Term Ecological Research (LTER) Network-125.0,25.0,-67.0,50.0-180.0,-90.0,180.0,-70.0-67.0,17.0,-65.0,19.01980-01-01T00:00:00ZT00:00:00Z2009-01-21T05:00:00ZThe Long Term Ecological Research (LTER) Network is a collaborative
effort involving more than 1100 scientists and students investigating
ecological processes over long temporal and broad ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_87Organic Geochemical Studies on Peat Deposits from Macquarie Island158.0,-54.0,159.0,-54.01989-09-30T00:00:00Z1990-03-31T00:00:00Z2008-04-10T04:00:00ZData are extracted from the paper by S. A. Pickering and B.D. Batts, &Patterns of Mono- and Difunctional Carboxylic Acids in Hydrothermal Leachates of Soil and Peat Humates: Geological and Environmental ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]RISCC_BibliographyRiSCC Research Support Bibliography45.0,-90.0,160.0,-50.01995-09-01T00:00:00ZT00:00:00Z2008-04-10T04:00:00ZRiSCC Research Support Bibliography compiled by RiSCC group members. There is 1 record in this bibliography.
This bibliography contains references to the RiSCC program (Regional Sensitivity to Climate ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]SouthpoleAntarctic Data from Italian Expeditions Concerning Research in Earth Sciences, Environmental, Cosmophysics, Biology, Medical Sciences-180.0,-90.0,180.0,-65.01985-01-01T00:00:00ZT00:00:00Z2005-07-28T04:00:00ZThe Italian base in Antarctica is located at Terra Nova Bay inside the Ross sea
(Lat. 74 41'42'S, Long. 164 07'23'E). The expeditions are done during the
Antarctic summer and usually run from early ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NOAA_NCDC_PALEO_96-022European Land Surface Conditions 6K Reconstruction-10.0,35.0,60.0,75.02005-04-20T04:00:00ZThese biomes are interpolated from 2014 pollen surface samples, for the
Present, and from 343 pollen sites for 6000 yr BP. The coverage is relatively
well balanced for the modern data, but the region ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]003-94_01Preliminary data on the accumulation of usnic acid related to ozono depletion in two lichens-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,-62.371966-02-01T00:00:00Z1996-02-01T00:00:00Z2004-08-06T04:00:00ZThe 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 ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]CNDA-ESP_ANT89-0804-E_LIQ_01Ecophysiological and floristic study of the lichen communities in Livingston Island.-60.0,-63.0,-60.0,-63.01992-02-15T00:00:00Z1992-02-25T00:00:00Z2004-02-17T05:00:00ZIn English:
Scientific objectives:
-Floristic study of Livingston Island.
-Structure, succession and dynamism of the principal lichen and bryolichen
communities.
-Chorological study (distribution) ...