Structure and Function of Terrestrial Biotic Communities
An analysis of bedrock and associated soils was conducted at a series of coastal localities in East Antarctica as well as further inland in the Prince Charles Mountains. Protozoans and micrometazoans were extracted from soil samples and an assessment made of their ecological relations with each othe...
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Format: | Dataset |
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Australian Antarctic Data Centre
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Online Access: | https://researchdata.ands.org.au/structure-function-terrestrial-biotic-communities/700151 https://doi.org/10.4225/15/57E4C573B3B81 https://data.aad.gov.au/metadata/records/ASAC_37 http://nla.gov.au/nla.party-617536 |
id |
ftands:oai:ands.org.au::700151 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Research Data Australia (Australian National Data Service - ANDS) |
op_collection_id |
ftands |
language |
unknown |
topic |
biota ANIMALS/INVERTEBRATES EARTH SCIENCE BIOLOGICAL CLASSIFICATION COMMUNITY STRUCTURE BIOSPHERE ECOLOGICAL DYNAMICS COMMUNITY DYNAMICS % DRY WEIGHT % VOLUME AMOEBAE BEDROCK TYPE BIOTITE CILIATES CONDUCTIVITY MICROMETAZOAN NEMATODES PLAGIOCLASE PYROXENE QUARTZ ROTIFERS SAMPLE CODE SAMPLES SITE SOIL SOIL MOISTURE TARDIGRADES Radiometers XRD > X-ray Diffractometer FIELD SURVEYS FIELD INVESTIGATION CONTINENT > ANTARCTICA > Bechervaise Island Vestfold Hills Prince Charles Mountains Else Platform Jetty Peninsula Pagodroma Gorge Blustery Cliffs Mt Woinarski Mt Jacklyn Farley Massif Moore Pyramid Mt Wishart Mt Starlight Corry Massif Mt Forecast Mawson Station Field Rock Rumdoodle GEOGRAPHIC REGION > POLAR |
spellingShingle |
biota ANIMALS/INVERTEBRATES EARTH SCIENCE BIOLOGICAL CLASSIFICATION COMMUNITY STRUCTURE BIOSPHERE ECOLOGICAL DYNAMICS COMMUNITY DYNAMICS % DRY WEIGHT % VOLUME AMOEBAE BEDROCK TYPE BIOTITE CILIATES CONDUCTIVITY MICROMETAZOAN NEMATODES PLAGIOCLASE PYROXENE QUARTZ ROTIFERS SAMPLE CODE SAMPLES SITE SOIL SOIL MOISTURE TARDIGRADES Radiometers XRD > X-ray Diffractometer FIELD SURVEYS FIELD INVESTIGATION CONTINENT > ANTARCTICA > Bechervaise Island Vestfold Hills Prince Charles Mountains Else Platform Jetty Peninsula Pagodroma Gorge Blustery Cliffs Mt Woinarski Mt Jacklyn Farley Massif Moore Pyramid Mt Wishart Mt Starlight Corry Massif Mt Forecast Mawson Station Field Rock Rumdoodle GEOGRAPHIC REGION > POLAR Structure and Function of Terrestrial Biotic Communities |
topic_facet |
biota ANIMALS/INVERTEBRATES EARTH SCIENCE BIOLOGICAL CLASSIFICATION COMMUNITY STRUCTURE BIOSPHERE ECOLOGICAL DYNAMICS COMMUNITY DYNAMICS % DRY WEIGHT % VOLUME AMOEBAE BEDROCK TYPE BIOTITE CILIATES CONDUCTIVITY MICROMETAZOAN NEMATODES PLAGIOCLASE PYROXENE QUARTZ ROTIFERS SAMPLE CODE SAMPLES SITE SOIL SOIL MOISTURE TARDIGRADES Radiometers XRD > X-ray Diffractometer FIELD SURVEYS FIELD INVESTIGATION CONTINENT > ANTARCTICA > Bechervaise Island Vestfold Hills Prince Charles Mountains Else Platform Jetty Peninsula Pagodroma Gorge Blustery Cliffs Mt Woinarski Mt Jacklyn Farley Massif Moore Pyramid Mt Wishart Mt Starlight Corry Massif Mt Forecast Mawson Station Field Rock Rumdoodle GEOGRAPHIC REGION > POLAR |
description |
An analysis of bedrock and associated soils was conducted at a series of coastal localities in East Antarctica as well as further inland in the Prince Charles Mountains. Protozoans and micrometazoans were extracted from soil samples and an assessment made of their ecological relations with each other and with soil characteristics. Mineral soils, regardless of topographic elevation and proximity to the coast, were characterised by large gravel fractions (fragments of underlying bedrock) and minimal clay fractions, implying that these soils were predominantly the products of physical weathering, with little chemical alteration. Only where humans, dogs or birds contributed organic matter were there elevated concentrations of nitrogen, phosphorus or organic matter. Generally, mineral nitrogen did not seem to have resulted from microbial mineralisation, but at some sites there was evidence that atmospheric nitrate had been concentrated by sublimination of snow. Water-soluble and dilute acid-soluble phosphorous concentrations were surprisingly high for such organically poor soils. There was a sufficiently large labile pool of common macronutrients to sustain the autotrophic activity likely to occur within the bounds of prevailing temperatures and moisture; thus nutrients are not likely to be limiting for these soil communities. There was a limited fauna. Flagellates were rare and ciliates occurred only in the coastal areas sampled, whereas amoebae were found over a greater geographic and elevational span. Micrometazoans such as rotifers, tardigrades and nematodes were more common in coastal soils than in those further inland, but occurred in soils over most of the naturally occurring range of soil moistures, acidities, nutrient levels, electrolyte levels and organic contents. Exceptions were the exclusion of rotifers from alkaline soils with high nutrient levels, and the tendency of nematodes to be absent from soils with low pH. Tardigrades were found at almost all levels of soil characterisitcs. The occurrence of these metazoan phyla under such a range of environments probably resulted from their known capacity to alternate between endurance of inclement conditions in a state of deep dormancy (anhydrobiosis), and taking advantage of ephemeral favourable conditions by temporarily resuming metabolic activity. The conditions measured in soils containing micrometazoans may merely indicate thise conditions these animals can survive while dormant, not those under which active animals can carry out vital processes. In some localities there were positive associations between various taxon-pairs of metazoans and protozoans, whereas at others their occurrences seemed to be random with respect to each other. The fields for this dataset are: site conductivity bedrock type quartz garnet pyroxene homblende biotite K-feldspar plagioclase other catalogue number material USDA texture class % dry weight % volume colour (munsell) Total N(micro grams g-1) Minimum N (KCl) NH3-N(micro grams g-1) Minimum N (KCl) NH4-N(micro grams g-1) Dilute acid sol. P(micro grams g-1) loss on ignition (%) amoebae ciliates tardigrades nematodes associations rotifers samples granitic gneiss Amphibolite (B4) Quartz sandstone (J1) Garnet Pegmatite (W3) >19.05mm 19.05-11.13mm 11.13-9.60mm 9.60-5.66mm 5.66-4.76mm 4.76-4.00mm 4.00-2.80mm 2.80-2.00mm less than 2.00mm 2.00 mm- 212 micro meters 212 micro meters- 20 micro meters 20 micro meters - 2 micro meters less than 2 micro meters mont. verm. chlor. Illite Kaol. Int. K:I sepiol. int MI int I:C Int M:C Sample code pH KCI (1:5) pH H20 (1:5) micro siemens cm-1(1:5) Water- Sol. P(1:5)(micro grams mL-1) Water- Sol. K(1:5)(micro grams mL-1) Water Sol. K(1:5)(micro grams g-1) N grand total variables correlation with elevation correlation without elevation RHO P correlations of: soil moisture organic matter (LOI) water soluble P Acid soluble P exchangeable K water soluble K (wt) nitrate N ammonia N soil moisture and organic matter Soil moisture and soluble P soil moisture and acid-soluble P soil moisture and pH (water) soil moisture and pH (KCl) organic matter and acid-soluble P organic matter and total N organic matter and pH (water) organic matter and pH (KCl) soluble P and acid-soluble P soluble P and total N soluble P and pH (water) soluble P and pH (KCl) acid-soluble P and total N acid-soluble P and pH (water) acid-soluble P and pH (KCl) Total N and pH (water) Total N and pH (KCl) pH (water) and pH (KCl) coastal PCM observed expected X2 (X squared) +/- |
author2 |
HEATWOLE, HAROLD (hasPrincipalInvestigator) HEATWOLE, HAROLD (processor) Australian Antarctic Data Centre (publisher) |
format |
Dataset |
title |
Structure and Function of Terrestrial Biotic Communities |
title_short |
Structure and Function of Terrestrial Biotic Communities |
title_full |
Structure and Function of Terrestrial Biotic Communities |
title_fullStr |
Structure and Function of Terrestrial Biotic Communities |
title_full_unstemmed |
Structure and Function of Terrestrial Biotic Communities |
title_sort |
structure and function of terrestrial biotic communities |
publisher |
Australian Antarctic Data Centre |
url |
https://researchdata.ands.org.au/structure-function-terrestrial-biotic-communities/700151 https://doi.org/10.4225/15/57E4C573B3B81 https://data.aad.gov.au/metadata/records/ASAC_37 http://nla.gov.au/nla.party-617536 |
op_coverage |
Spatial: northlimit=-67.5833; southlimit=-71.4166; westlimit=62.8166; eastLimit=78.0; projection=WGS84 Temporal: From 1990-01-06 to 1990-02-03 |
long_lat |
ENVELOPE(67.858,67.858,-71.428,-71.428) ENVELOPE(-57.583,-57.583,-63.700,-63.700) ENVELOPE(64.625,64.625,-70.436,-70.436) ENVELOPE(66.800,66.800,-70.367,-70.367) ENVELOPE(-152.500,-152.500,-86.583,-86.583) ENVELOPE(65.788,65.788,-70.224,-70.224) ENVELOPE(62.906,62.906,-67.602,-67.602) ENVELOPE(65.833,65.833,-70.267,-70.267) ENVELOPE(68.783,68.783,-70.652,-70.652) ENVELOPE(62.874,62.874,-67.603,-67.603) ENVELOPE(65.133,65.133,-70.300,-70.300) ENVELOPE(68.133,68.133,-70.833,-70.833) ENVELOPE(67.246,67.246,-71.427,-71.427) ENVELOPE(157.300,157.300,-81.333,-81.333) ENVELOPE(-63.000,-63.000,-64.300,-64.300) ENVELOPE(64.483,64.483,-70.200,-70.200) ENVELOPE(62.8166,78.0,-67.5833,-71.4166) |
geographic |
Blustery Cliffs Corry Corry Massif East Antarctica Else Platform Farley Farley Massif Field Rock Jacklyn Jetty Peninsula Mawson Station Moore Pyramid Pagodroma Gorge Prince Charles Mountains Pyramid Rho Starlight Vestfold Vestfold Hills |
geographic_facet |
Blustery Cliffs Corry Corry Massif East Antarctica Else Platform Farley Farley Massif Field Rock Jacklyn Jetty Peninsula Mawson Station Moore Pyramid Pagodroma Gorge Prince Charles Mountains Pyramid Rho Starlight Vestfold Vestfold Hills |
genre |
Antarc* Antarctica East Antarctica Prince Charles Mountains Field Rock |
genre_facet |
Antarc* Antarctica East Antarctica Prince Charles Mountains Field Rock |
op_source |
Australian Antarctic Data Centre |
op_relation |
https://researchdata.ands.org.au/structure-function-terrestrial-biotic-communities/700151 30856e15-5ace-4097-bbb1-2eb92d63e9d5 doi:10.4225/15/57E4C573B3B81 ASAC_37 https://data.aad.gov.au/metadata/records/ASAC_37 http://nla.gov.au/nla.party-617536 |
op_doi |
https://doi.org/10.4225/15/57E4C573B3B81 |
_version_ |
1766245888952369152 |
spelling |
ftands:oai:ands.org.au::700151 2023-05-15T13:46:58+02:00 Structure and Function of Terrestrial Biotic Communities HEATWOLE, HAROLD (hasPrincipalInvestigator) HEATWOLE, HAROLD (processor) Australian Antarctic Data Centre (publisher) Spatial: northlimit=-67.5833; southlimit=-71.4166; westlimit=62.8166; eastLimit=78.0; projection=WGS84 Temporal: From 1990-01-06 to 1990-02-03 https://researchdata.ands.org.au/structure-function-terrestrial-biotic-communities/700151 https://doi.org/10.4225/15/57E4C573B3B81 https://data.aad.gov.au/metadata/records/ASAC_37 http://nla.gov.au/nla.party-617536 unknown Australian Antarctic Data Centre https://researchdata.ands.org.au/structure-function-terrestrial-biotic-communities/700151 30856e15-5ace-4097-bbb1-2eb92d63e9d5 doi:10.4225/15/57E4C573B3B81 ASAC_37 https://data.aad.gov.au/metadata/records/ASAC_37 http://nla.gov.au/nla.party-617536 Australian Antarctic Data Centre biota ANIMALS/INVERTEBRATES EARTH SCIENCE BIOLOGICAL CLASSIFICATION COMMUNITY STRUCTURE BIOSPHERE ECOLOGICAL DYNAMICS COMMUNITY DYNAMICS % DRY WEIGHT % VOLUME AMOEBAE BEDROCK TYPE BIOTITE CILIATES CONDUCTIVITY MICROMETAZOAN NEMATODES PLAGIOCLASE PYROXENE QUARTZ ROTIFERS SAMPLE CODE SAMPLES SITE SOIL SOIL MOISTURE TARDIGRADES Radiometers XRD > X-ray Diffractometer FIELD SURVEYS FIELD INVESTIGATION CONTINENT > ANTARCTICA > Bechervaise Island Vestfold Hills Prince Charles Mountains Else Platform Jetty Peninsula Pagodroma Gorge Blustery Cliffs Mt Woinarski Mt Jacklyn Farley Massif Moore Pyramid Mt Wishart Mt Starlight Corry Massif Mt Forecast Mawson Station Field Rock Rumdoodle GEOGRAPHIC REGION > POLAR dataset ftands https://doi.org/10.4225/15/57E4C573B3B81 2020-01-05T21:17:10Z An analysis of bedrock and associated soils was conducted at a series of coastal localities in East Antarctica as well as further inland in the Prince Charles Mountains. Protozoans and micrometazoans were extracted from soil samples and an assessment made of their ecological relations with each other and with soil characteristics. Mineral soils, regardless of topographic elevation and proximity to the coast, were characterised by large gravel fractions (fragments of underlying bedrock) and minimal clay fractions, implying that these soils were predominantly the products of physical weathering, with little chemical alteration. Only where humans, dogs or birds contributed organic matter were there elevated concentrations of nitrogen, phosphorus or organic matter. Generally, mineral nitrogen did not seem to have resulted from microbial mineralisation, but at some sites there was evidence that atmospheric nitrate had been concentrated by sublimination of snow. Water-soluble and dilute acid-soluble phosphorous concentrations were surprisingly high for such organically poor soils. There was a sufficiently large labile pool of common macronutrients to sustain the autotrophic activity likely to occur within the bounds of prevailing temperatures and moisture; thus nutrients are not likely to be limiting for these soil communities. There was a limited fauna. Flagellates were rare and ciliates occurred only in the coastal areas sampled, whereas amoebae were found over a greater geographic and elevational span. Micrometazoans such as rotifers, tardigrades and nematodes were more common in coastal soils than in those further inland, but occurred in soils over most of the naturally occurring range of soil moistures, acidities, nutrient levels, electrolyte levels and organic contents. Exceptions were the exclusion of rotifers from alkaline soils with high nutrient levels, and the tendency of nematodes to be absent from soils with low pH. Tardigrades were found at almost all levels of soil characterisitcs. The occurrence of these metazoan phyla under such a range of environments probably resulted from their known capacity to alternate between endurance of inclement conditions in a state of deep dormancy (anhydrobiosis), and taking advantage of ephemeral favourable conditions by temporarily resuming metabolic activity. The conditions measured in soils containing micrometazoans may merely indicate thise conditions these animals can survive while dormant, not those under which active animals can carry out vital processes. In some localities there were positive associations between various taxon-pairs of metazoans and protozoans, whereas at others their occurrences seemed to be random with respect to each other. The fields for this dataset are: site conductivity bedrock type quartz garnet pyroxene homblende biotite K-feldspar plagioclase other catalogue number material USDA texture class % dry weight % volume colour (munsell) Total N(micro grams g-1) Minimum N (KCl) NH3-N(micro grams g-1) Minimum N (KCl) NH4-N(micro grams g-1) Dilute acid sol. P(micro grams g-1) loss on ignition (%) amoebae ciliates tardigrades nematodes associations rotifers samples granitic gneiss Amphibolite (B4) Quartz sandstone (J1) Garnet Pegmatite (W3) >19.05mm 19.05-11.13mm 11.13-9.60mm 9.60-5.66mm 5.66-4.76mm 4.76-4.00mm 4.00-2.80mm 2.80-2.00mm less than 2.00mm 2.00 mm- 212 micro meters 212 micro meters- 20 micro meters 20 micro meters - 2 micro meters less than 2 micro meters mont. verm. chlor. Illite Kaol. Int. K:I sepiol. int MI int I:C Int M:C Sample code pH KCI (1:5) pH H20 (1:5) micro siemens cm-1(1:5) Water- Sol. P(1:5)(micro grams mL-1) Water- Sol. K(1:5)(micro grams mL-1) Water Sol. K(1:5)(micro grams g-1) N grand total variables correlation with elevation correlation without elevation RHO P correlations of: soil moisture organic matter (LOI) water soluble P Acid soluble P exchangeable K water soluble K (wt) nitrate N ammonia N soil moisture and organic matter Soil moisture and soluble P soil moisture and acid-soluble P soil moisture and pH (water) soil moisture and pH (KCl) organic matter and acid-soluble P organic matter and total N organic matter and pH (water) organic matter and pH (KCl) soluble P and acid-soluble P soluble P and total N soluble P and pH (water) soluble P and pH (KCl) acid-soluble P and total N acid-soluble P and pH (water) acid-soluble P and pH (KCl) Total N and pH (water) Total N and pH (KCl) pH (water) and pH (KCl) coastal PCM observed expected X2 (X squared) +/- Dataset Antarc* Antarctica East Antarctica Prince Charles Mountains Field Rock Research Data Australia (Australian National Data Service - ANDS) Blustery Cliffs ENVELOPE(67.858,67.858,-71.428,-71.428) Corry ENVELOPE(-57.583,-57.583,-63.700,-63.700) Corry Massif ENVELOPE(64.625,64.625,-70.436,-70.436) East Antarctica Else Platform ENVELOPE(66.800,66.800,-70.367,-70.367) Farley ENVELOPE(-152.500,-152.500,-86.583,-86.583) Farley Massif ENVELOPE(65.788,65.788,-70.224,-70.224) Field Rock ENVELOPE(62.906,62.906,-67.602,-67.602) Jacklyn ENVELOPE(65.833,65.833,-70.267,-70.267) Jetty Peninsula ENVELOPE(68.783,68.783,-70.652,-70.652) Mawson Station ENVELOPE(62.874,62.874,-67.603,-67.603) Moore Pyramid ENVELOPE(65.133,65.133,-70.300,-70.300) Pagodroma Gorge ENVELOPE(68.133,68.133,-70.833,-70.833) Prince Charles Mountains ENVELOPE(67.246,67.246,-71.427,-71.427) Pyramid ENVELOPE(157.300,157.300,-81.333,-81.333) Rho ENVELOPE(-63.000,-63.000,-64.300,-64.300) Starlight ENVELOPE(64.483,64.483,-70.200,-70.200) Vestfold Vestfold Hills ENVELOPE(62.8166,78.0,-67.5833,-71.4166) |